[UI] Migrate to base fragment classes, restructure base modules (#206)

* Replace android:visibility with android:isVisible

* Move base dialogs and views to .ui.base

* Move uncategorized classes to ui.main

* Fix view classes in XML

* Add BaseFragment, use for LazyFragment

* Migrate fragments to BaseFragment

* Move activity setup from BaseFragment, recreate Job on attach

* Move BaseFragment initialization to onResume

* Add base PagerFragment, add TemplateFragment to drawer

* Support swipe-to-refresh in base fragments

* Remove SwipeRefreshLayout split implementation

* Rename onViewCreated to onViewReady

* Remove LazyFragment

* Save page selection in PagerFragment, migrate AttendanceFragment

* Migrate fragments to PagerFragment

* Migrate contributors to a fragment

* Migrate TimetableFragment to PagerFragment

* Fix disabling SwipeToRefresh on page scroll

* Fix crash in CrashActivity

.idea/codeStyles/Project.xml

@@ -143,6 +143,7 @@
     </codeStyleSettings>
     <codeStyleSettings language="kotlin">
       <option name="CODE_STYLE_DEFAULTS" value="KOTLIN_OFFICIAL" />
+      <option name="ALIGN_MULTILINE_BINARY_OPERATION" value="true" />
       <option name="PARAMETER_ANNOTATION_WRAP" value="2" />
       <option name="ENUM_CONSTANTS_WRAP" value="2" />
     </codeStyleSettings>

app/src/main/AndroidManifest.xml

@@ -126,7 +126,7 @@
               / ____ \ (__| |_| |\ V /| | |_| |  __/\__ \
              /_/    \_\___|\__|_| \_/ |_|\__|_|\___||___/
         -->
-        <activity android:name=".ui.base.CrashActivity"
+        <activity android:name=".ui.main.CrashActivity"
             android:configChanges="orientation|screenSize|keyboardHidden"
             android:process=":error_activity"
             android:exported="false"
@@ -163,8 +163,7 @@
             android:configChanges="orientation|keyboardHidden"
             android:exported="false"
             android:theme="@style/Theme.MaterialComponents.Light.DarkActionBar" />
-        <activity android:name=".ui.base.BuildInvalidActivity" android:exported="false" />
-        <activity android:name=".ui.settings.contributors.ContributorsActivity" android:exported="false" />
+        <activity android:name=".ui.main.BuildInvalidActivity" android:exported="false" />
 
         <!--  _____               _
              |  __ \             (_)

app/src/main/java/pl/szczodrzynski/edziennik/App.kt

@@ -54,7 +54,7 @@ import pl.szczodrzynski.edziennik.data.db.AppDb
 import pl.szczodrzynski.edziennik.data.db.entity.Profile
 import pl.szczodrzynski.edziennik.data.enums.LoginType
 import pl.szczodrzynski.edziennik.network.SSLProviderInstaller
-import pl.szczodrzynski.edziennik.ui.base.CrashActivity
+import pl.szczodrzynski.edziennik.ui.main.CrashActivity
 import pl.szczodrzynski.edziennik.utils.PermissionChecker
 import pl.szczodrzynski.edziennik.utils.Utils
 import timber.log.Timber

app/src/main/java/pl/szczodrzynski/edziennik/MainActivity.kt

@@ -19,6 +19,7 @@ import androidx.core.content.ContextCompat
 import androidx.core.graphics.ColorUtils
 import androidx.core.view.isVisible
 import androidx.navigation.NavOptions
+import androidx.swiperefreshlayout.widget.SwipeRefreshLayout
 import com.danimahardhika.cafebar.CafeBar
 import com.danimahardhika.cafebar.CafeBarTheme
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
@@ -49,7 +50,7 @@ import pl.szczodrzynski.edziennik.core.work.AppManagerDetectedEvent
 import pl.szczodrzynski.edziennik.core.work.SyncWorker
 import pl.szczodrzynski.edziennik.core.work.UpdateStateEvent
 import pl.szczodrzynski.edziennik.core.work.UpdateWorker
-import pl.szczodrzynski.edziennik.ui.base.MainSnackbar
+import pl.szczodrzynski.edziennik.ui.main.MainSnackbar
 import pl.szczodrzynski.edziennik.data.enums.NavTarget
 import pl.szczodrzynski.edziennik.data.enums.NavTargetLocation
 import pl.szczodrzynski.edziennik.ui.dialogs.ChangelogDialog
@@ -59,8 +60,8 @@ import pl.szczodrzynski.edziennik.ui.dialogs.sync.ServerMessageDialog
 import pl.szczodrzynski.edziennik.ui.dialogs.sync.SyncViewListDialog
 import pl.szczodrzynski.edziennik.ui.dialogs.sync.UpdateAvailableDialog
 import pl.szczodrzynski.edziennik.ui.dialogs.sync.UpdateProgressDialog
-import pl.szczodrzynski.edziennik.ui.error.ErrorDetailsDialog
-import pl.szczodrzynski.edziennik.ui.error.ErrorSnackbar
+import pl.szczodrzynski.edziennik.ui.dialogs.ErrorDetailsDialog
+import pl.szczodrzynski.edziennik.ui.main.ErrorSnackbar
 import pl.szczodrzynski.edziennik.ui.event.EventManualDialog
 import pl.szczodrzynski.edziennik.ui.login.LoginActivity
 import pl.szczodrzynski.edziennik.ui.messages.list.MessagesFragment
@@ -76,7 +77,6 @@ import pl.szczodrzynski.navlib.bottomsheet.items.BottomSheetSeparatorItem
 import pl.szczodrzynski.navlib.drawer.NavDrawer
 import pl.szczodrzynski.navlib.drawer.items.DrawerPrimaryItem
 import timber.log.Timber
-import java.io.IOException
 import kotlin.coroutines.CoroutineContext
 import kotlin.math.roundToInt
 
@@ -97,7 +97,7 @@ class MainActivity : AppCompatActivity(), CoroutineScope {
     val errorSnackbar: ErrorSnackbar by lazy { ErrorSnackbar(this) }
     val requestHandler by lazy { MainActivityRequestHandler(this) }
 
-    val swipeRefreshLayout: SwipeRefreshLayoutNoTouch by lazy { b.swipeRefreshLayout }
+    val swipeRefreshLayout: SwipeRefreshLayout by lazy { b.swipeRefreshLayout }
 
     var onBeforeNavigate: (() -> Boolean)? = null
     private var pausedNavigationData: PausedNavigationData? = null
@@ -264,9 +264,8 @@ class MainActivity : AppCompatActivity(), CoroutineScope {
             drawer.setUnreadCounterList(unreadCounters)
         }
 
-        b.swipeRefreshLayout.isEnabled = true
-        b.swipeRefreshLayout.setOnRefreshListener { launch { syncCurrentFeature() } }
-        b.swipeRefreshLayout.setColorSchemeResources(
+        swipeRefreshLayout.setOnRefreshListener { launch { syncCurrentFeature() } }
+        swipeRefreshLayout.setColorSchemeResources(
             R.color.md_blue_500,
             R.color.md_amber_500,
             R.color.md_green_500
@@ -939,6 +938,7 @@ class MainActivity : AppCompatActivity(), CoroutineScope {
         val arguments = args
             ?: navBackStack.firstOrNull { it.first == navTarget }?.second
             ?: Bundle()
+        swipeRefreshLayout.isEnabled = false
         bottomSheet.close()
         bottomSheet.removeAllContextual()
         bottomSheet.toggleGroupEnabled = false

app/src/main/java/pl/szczodrzynski/edziennik/core/manager/BuildManager.kt

@@ -34,7 +34,7 @@ import pl.szczodrzynski.edziennik.ext.md5
 import pl.szczodrzynski.edziennik.ext.resolveAttr
 import pl.szczodrzynski.edziennik.ext.resolveColor
 import pl.szczodrzynski.edziennik.ext.toJsonObject
-import pl.szczodrzynski.edziennik.ui.base.BuildInvalidActivity
+import pl.szczodrzynski.edziennik.ui.main.BuildInvalidActivity
 import pl.szczodrzynski.edziennik.utils.Utils
 import timber.log.Timber
 import java.time.Instant

app/src/main/java/pl/szczodrzynski/edziennik/core/manager/FirebaseManager.kt

@@ -69,6 +69,14 @@ class FirebaseManager(val app: App) {
     )
 
     fun initializeApps() {
+        try {
+            // skip Firebase setup if the default app is not initialized
+            // (e.g. in the crash process)
+            FirebaseApp.getInstance()
+        } catch (e: IllegalStateException) {
+            return
+        }
+
         FirebaseInstanceId.getInstance().instanceId.addOnSuccessListener { result ->
             val token = result.token
             Timber.i("Got App token: $token")

app/src/main/java/pl/szczodrzynski/edziennik/data/api/szkolny/SzkolnyApi.kt

@@ -28,8 +28,8 @@ import pl.szczodrzynski.edziennik.ext.keys
 import pl.szczodrzynski.edziennik.ext.md5
 import pl.szczodrzynski.edziennik.ext.toApiError
 import pl.szczodrzynski.edziennik.ext.toErrorCode
-import pl.szczodrzynski.edziennik.ui.error.ErrorDetailsDialog
-import pl.szczodrzynski.edziennik.ui.error.ErrorSnackbar
+import pl.szczodrzynski.edziennik.ui.dialogs.ErrorDetailsDialog
+import pl.szczodrzynski.edziennik.ui.main.ErrorSnackbar
 import pl.szczodrzynski.edziennik.ui.login.LoginInfo
 import pl.szczodrzynski.edziennik.utils.models.Date
 import pl.szczodrzynski.edziennik.utils.models.Time

app/src/main/java/pl/szczodrzynski/edziennik/data/enums/NavTarget.kt

@@ -30,7 +30,9 @@ import pl.szczodrzynski.edziennik.ui.notes.NotesFragment
 import pl.szczodrzynski.edziennik.ui.notifications.NotificationsListFragment
 import pl.szczodrzynski.edziennik.ui.settings.ProfileManagerFragment
 import pl.szczodrzynski.edziennik.ui.settings.SettingsFragment
+import pl.szczodrzynski.edziennik.ui.settings.contributors.ContributorsFragment
 import pl.szczodrzynski.edziennik.ui.teachers.TeachersListFragment
+import pl.szczodrzynski.edziennik.ui.template.TemplateFragment
 import pl.szczodrzynski.edziennik.ui.timetable.TimetableFragment
 import pl.szczodrzynski.edziennik.ui.webpush.WebPushFragment
 import pl.szczodrzynski.navlib.bottomsheet.items.BottomSheetPrimaryItem
@@ -177,6 +179,15 @@ enum class NavTarget(
         popTo = HOME,
         devModeOnly = true,
     ),
+    TEMPLATE(
+        id = 1001,
+        fragmentClass = TemplateFragment::class.java,
+        location = NavTargetLocation.DRAWER_BOTTOM,
+        nameRes = R.string.menu_template,
+        icon = CommunityMaterial.Icon.cmd_code_braces,
+        popTo = HOME,
+        devModeOnly = true,
+    ),
     PROFILE_ADD(
         id = 200,
         fragmentClass = null,
@@ -243,6 +254,11 @@ enum class NavTarget(
         id = 140,
         fragmentClass = WebPushFragment::class.java,
         nameRes = R.string.menu_web_push,
+    ),
+    CONTRIBUTORS(
+        id = 150,
+        fragmentClass = ContributorsFragment::class.java,
+        nameRes = R.string.contributors,
     );
 
     companion object {

app/src/main/java/pl/szczodrzynski/edziennik/ext/BundleExtensions.kt

@@ -31,34 +31,33 @@ fun Bundle?.getIntOrNull(key: String): Int? {
 }
 
 @Suppress("UNCHECKED_CAST")
-fun <T : Any> Bundle?.get(key: String): T? {
-    return this?.get(key) as? T?
+operator fun Bundle.set(key: String, value: Any) = when (value) {
+    is String -> putString(key, value as String?)
+    is Char -> putChar(key, value)
+    is Int -> putInt(key, value)
+    is Long -> putLong(key, value)
+    is Float -> putFloat(key, value)
+    is Short -> putShort(key, value)
+    is Double -> putDouble(key, value)
+    is Boolean -> putBoolean(key, value)
+    is Bundle -> putBundle(key, value)
+    is Enum<*> -> putEnum(key, value)
+    is Array<*> -> putParcelableArray(key, value as Array<out Parcelable>)
+    is Parcelable -> putParcelable(key, value)
+    is Serializable -> putSerializable(key, value)
+    else -> throw IllegalArgumentException("Couldn't serialize $key = $value")
 }
 
-@Suppress("UNCHECKED_CAST")
-fun Bundle(vararg properties: Pair<String, Any?>): Bundle {
-    return Bundle().apply {
-        for (property in properties) {
-            val (key, value) = property
-            when (value) {
-                is String -> putString(key, value as String?)
-                is Char -> putChar(key, value)
-                is Int -> putInt(key, value)
-                is Long -> putLong(key, value)
-                is Float -> putFloat(key, value)
-                is Short -> putShort(key, value)
-                is Double -> putDouble(key, value)
-                is Boolean -> putBoolean(key, value)
-                is Bundle -> putBundle(key, value)
-                is Enum<*> -> putEnum(key, value)
-                is Array<*> -> putParcelableArray(key, value as Array<out Parcelable>)
-                is Parcelable -> putParcelable(key, value)
-                is Serializable -> putSerializable(key, value)
-            }
-        }
+fun Bundle.putExtras(vararg properties: Pair<String, Any?>): Bundle {
+    for (property in properties) {
+        val (key, value) = property
+        this[key] = value ?: continue
     }
+    return this
 }
 
+fun Bundle(vararg properties: Pair<String, Any?>) = Bundle().putExtras(*properties)
+
 fun Intent(action: String? = null, vararg properties: Pair<String, Any?>): Intent {
     return Intent(action).putExtras(Bundle(*properties))
 }
@@ -68,7 +67,7 @@ fun Intent(packageContext: Context, cls: Class<*>, vararg properties: Pair<Strin
 }
 
 fun Intent.putExtras(vararg properties: Pair<String, Any?>) = putExtras(Bundle(*properties))
-fun Bundle.putExtras(vararg properties: Pair<String, Any?>) = putAll(Bundle(*properties))
+
 
 fun Bundle.toJsonObject(): JsonObject {
     val json = JsonObject()

app/src/main/java/pl/szczodrzynski/edziennik/ext/ContextExtensions.kt

@@ -7,10 +7,11 @@ package pl.szczodrzynski.edziennik.ext
 import android.app.UiModeManager
 import android.content.Context
 import android.content.res.Configuration
+import androidx.appcompat.app.AppCompatActivity
 import androidx.core.content.getSystemService
 import pl.szczodrzynski.edziennik.App
 
-val Context.app
+val AppCompatActivity.app
     get() = applicationContext as App
 
 val Context.isNightMode: Boolean

app/src/main/java/pl/szczodrzynski/edziennik/ext/GraphicsExtensions.kt

@@ -61,6 +61,12 @@ fun @receiver:AttrRes Int.resolveAttr(context: Context?): Int {
     }
     return typedValue.data
 }
+@StyleRes
+fun @receiver:AttrRes Int.resolveStyleAttr(context: Context?): Int {
+    val typedValue = TypedValue()
+    context?.theme?.resolveAttribute(this, typedValue, true)
+    return typedValue.data
+}
 @Dimension
 fun @receiver:AttrRes Int.resolveDimenAttr(context: Context): Float {
     val typedValue = TypedValue()

app/src/main/java/pl/szczodrzynski/edziennik/ext/ViewExtensions.kt

@@ -13,7 +13,6 @@ import android.view.WindowManager
 import android.widget.*
 import androidx.annotation.StringRes
 import androidx.recyclerview.widget.RecyclerView
-import androidx.swiperefreshlayout.widget.SwipeRefreshLayout
 import androidx.viewpager.widget.ViewPager
 import com.google.android.material.button.MaterialButton
 
@@ -152,16 +151,6 @@ inline fun ViewPager.addOnPageSelectedListener(crossinline block: (position: Int
     override fun onPageSelected(position: Int) { block(position) }
 })
 
-val SwipeRefreshLayout.onScrollListener: RecyclerView.OnScrollListener
-    get() = object : RecyclerView.OnScrollListener() {
-        override fun onScrollStateChanged(recyclerView: RecyclerView, newState: Int) {
-            if (recyclerView.canScrollVertically(-1))
-                this@onScrollListener.isEnabled = false
-            if (!recyclerView.canScrollVertically(-1) && newState == RecyclerView.SCROLL_STATE_IDLE)
-                this@onScrollListener.isEnabled = true
-        }
-    }
-
 fun View.removeFromParent() {
     (parent as? ViewGroup)?.removeView(this)
 }

app/src/main/java/pl/szczodrzynski/edziennik/ui/agenda/AgendaFragment.kt

@@ -8,135 +8,103 @@ import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
-import android.widget.Toast
 import androidx.databinding.ViewDataBinding
-import androidx.fragment.app.Fragment
 import com.applandeo.materialcalendarview.EventDay
 import com.mikepenz.iconics.IconicsDrawable
 import com.mikepenz.iconics.typeface.library.community.material.CommunityMaterial
 import com.mikepenz.iconics.utils.colorInt
 import com.mikepenz.iconics.utils.sizeDp
 import eu.szkolny.font.SzkolnyFont
-import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.Job
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
-import pl.szczodrzynski.edziennik.App
 import pl.szczodrzynski.edziennik.MainActivity
 import pl.szczodrzynski.edziennik.R
-import pl.szczodrzynski.edziennik.data.db.entity.EventType
 import pl.szczodrzynski.edziennik.data.db.entity.Profile
 import pl.szczodrzynski.edziennik.data.enums.MetadataType
 import pl.szczodrzynski.edziennik.databinding.FragmentAgendaCalendarBinding
 import pl.szczodrzynski.edziennik.databinding.FragmentAgendaDefaultBinding
+import pl.szczodrzynski.edziennik.ui.base.fragment.BaseFragment
 import pl.szczodrzynski.edziennik.ui.dialogs.settings.AgendaConfigDialog
 import pl.szczodrzynski.edziennik.ui.event.EventManualDialog
-import pl.szczodrzynski.edziennik.utils.Themes
 import pl.szczodrzynski.edziennik.utils.models.Date
 import pl.szczodrzynski.navlib.bottomsheet.items.BottomSheetPrimaryItem
-import pl.szczodrzynski.navlib.bottomsheet.items.BottomSheetSeparatorItem
-import kotlin.coroutines.CoroutineContext
 
-class AgendaFragment : Fragment(), CoroutineScope {
+class AgendaFragment : BaseFragment<ViewDataBinding, MainActivity>(
+    inflater = null,
+) {
 
-    private lateinit var activity: MainActivity
-    private lateinit var b: ViewDataBinding
+    override fun inflate(
+        inflater: LayoutInflater,
+        parent: ViewGroup?,
+        attachToParent: Boolean,
+    ) = when (app.profile.config.ui.agendaViewType) {
+        Profile.AGENDA_DEFAULT -> FragmentAgendaDefaultBinding.inflate(inflater, parent, false)
+        Profile.AGENDA_CALENDAR -> FragmentAgendaCalendarBinding.inflate(inflater, parent, false)
+        else -> null
+    }
 
-    private val app by lazy { activity.app }
-
-    private var job = Job()
-    override val coroutineContext: CoroutineContext
-        get() = job + Dispatchers.Main
-
-    private var type: Int = Profile.AGENDA_DEFAULT
+    override fun getFab() = R.string.add to CommunityMaterial.Icon3.cmd_plus
+    override fun getMarkAsReadType() = MetadataType.EVENT
+    override fun getBottomSheetItems() = listOf(
+        BottomSheetPrimaryItem(true)
+            .withTitle(R.string.menu_add_event)
+            .withDescription(R.string.menu_add_event_desc)
+            .withIcon(SzkolnyFont.Icon.szf_calendar_plus_outline)
+            .withOnClickListener {
+                activity.bottomSheet.close()
+                EventManualDialog(
+                    activity,
+                    app.profileId,
+                    defaultDate = AgendaFragmentDefault.selectedDate
+                ).show()
+            },
+        BottomSheetPrimaryItem(true)
+            .withTitle(R.string.menu_agenda_config)
+            .withIcon(CommunityMaterial.Icon.cmd_cog_outline)
+            .withOnClickListener {
+                activity.bottomSheet.close()
+                AgendaConfigDialog(activity, true, null, null).show()
+            },
+        BottomSheetPrimaryItem(true)
+            .withTitle(R.string.menu_agenda_change_view)
+            .withIcon(
+                if (app.profile.config.ui.agendaViewType == Profile.AGENDA_DEFAULT)
+                    CommunityMaterial.Icon.cmd_calendar_outline
+                else
+                    CommunityMaterial.Icon2.cmd_format_list_bulleted_square
+            )
+            .withOnClickListener {
+                activity.bottomSheet.close()
+                app.profile.config.ui.agendaViewType =
+                    if (app.profile.config.ui.agendaViewType == Profile.AGENDA_DEFAULT)
+                        Profile.AGENDA_CALENDAR
+                    else
+                        Profile.AGENDA_DEFAULT
+                activity.reloadTarget()
+            },
+    )
 
     private var agendaDefault: AgendaFragmentDefault? = null
 
-    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
-        if (getActivity() == null || context == null) return null
-        activity = getActivity() as MainActivity
-        type = app.profile.config.ui.agendaViewType
-        b = when (type) {
-            Profile.AGENDA_DEFAULT -> FragmentAgendaDefaultBinding.inflate(inflater, container, false)
-            Profile.AGENDA_CALENDAR -> FragmentAgendaCalendarBinding.inflate(inflater, container, false)
-            else -> return null
+    override suspend fun onViewReady(savedInstanceState: Bundle?) {
+        when (app.profile.config.ui.agendaViewType) {
+            Profile.AGENDA_DEFAULT -> createDefaultAgendaView(
+                b as? FragmentAgendaDefaultBinding ?: return
+            )
+            Profile.AGENDA_CALENDAR -> createCalendarAgendaView(
+                b as? FragmentAgendaCalendarBinding ?: return
+            )
         }
-        return b.root
     }
 
-    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
-        if (!isAdded) return
-
-        activity.bottomSheet.prependItems(
-                BottomSheetPrimaryItem(true)
-                        .withTitle(R.string.menu_add_event)
-                        .withDescription(R.string.menu_add_event_desc)
-                        .withIcon(SzkolnyFont.Icon.szf_calendar_plus_outline)
-                        .withOnClickListener {
-                            activity.bottomSheet.close()
-                            EventManualDialog(
-                                activity,
-                                app.profileId,
-                                defaultDate = AgendaFragmentDefault.selectedDate
-                            ).show()
-                        },
-                BottomSheetPrimaryItem(true)
-                        .withTitle(R.string.menu_agenda_config)
-                        .withIcon(CommunityMaterial.Icon.cmd_cog_outline)
-                        .withOnClickListener {
-                            activity.bottomSheet.close()
-                            AgendaConfigDialog(activity, true, null, null).show()
-                        },
-                BottomSheetPrimaryItem(true)
-                        .withTitle(R.string.menu_agenda_change_view)
-                        .withIcon(if (type == Profile.AGENDA_DEFAULT) CommunityMaterial.Icon.cmd_calendar_outline else CommunityMaterial.Icon2.cmd_format_list_bulleted_square)
-                        .withOnClickListener {
-                            activity.bottomSheet.close()
-                            type =
-                                if (type == Profile.AGENDA_DEFAULT) Profile.AGENDA_CALENDAR else Profile.AGENDA_DEFAULT
-                            app.profile.config.ui.agendaViewType = type
-                            activity.reloadTarget()
-                        },
-                BottomSheetSeparatorItem(true),
-                BottomSheetPrimaryItem(true)
-                        .withTitle(R.string.menu_mark_as_read)
-                        .withIcon(CommunityMaterial.Icon.cmd_eye_check_outline)
-                        .withOnClickListener {
-                            launch {
-                                activity.bottomSheet.close()
-                                withContext(Dispatchers.Default) {
-                                    App.db.metadataDao()
-                                        .setAllSeen(app.profileId, MetadataType.EVENT, true)
-                                }
-                                Toast.makeText(
-                                    activity,
-                                    R.string.main_menu_mark_as_read_success,
-                                    Toast.LENGTH_SHORT
-                                ).show()
-                            }
-                        }
-        )
-
-        activity.navView.bottomBar.fabEnable = true
-        activity.navView.bottomBar.fabExtendedText = getString(R.string.add)
-        activity.navView.bottomBar.fabIcon = CommunityMaterial.Icon3.cmd_plus
-        activity.navView.setFabOnClickListener {
-            EventManualDialog(
-                activity,
-                app.profileId,
-                defaultDate = AgendaFragmentDefault.selectedDate
-            ).show()
-        }
-
-        activity.gainAttention()
-        activity.gainAttentionFAB()
-
-        when (type) {
-            Profile.AGENDA_DEFAULT -> createDefaultAgendaView()
-            Profile.AGENDA_CALENDAR -> createCalendarAgendaView()
-        }
+    override suspend fun onFabClick() {
+        EventManualDialog(
+            activity,
+            app.profileId,
+            defaultDate = AgendaFragmentDefault.selectedDate
+        ).show()
     }
 
     private suspend fun checkEventTypes() {
@@ -145,23 +113,25 @@ class AgendaFragment : Fragment(), CoroutineScope {
         }
     }
 
-    private fun createDefaultAgendaView() { (b as? FragmentAgendaDefaultBinding)?.let { b -> launch {
+    private suspend fun createDefaultAgendaView(b: FragmentAgendaDefaultBinding) {
         if (!isAdded)
-            return@launch
+            return
         checkEventTypes()
         delay(500)
 
         agendaDefault = AgendaFragmentDefault(activity, app, b)
         agendaDefault?.initView(this@AgendaFragment)
-    }}}
+    }
 
-    private fun createCalendarAgendaView() { (b as? FragmentAgendaCalendarBinding)?.let { b -> launch {
+    private suspend fun createCalendarAgendaView(b: FragmentAgendaCalendarBinding) {
         checkEventTypes()
         delay(300)
 
         val dayList = mutableListOf<EventDay>()
 
-        val events = withContext(Dispatchers.Default) { app.db.eventDao().getAllNow(app.profileId) }
+        val events = withContext(Dispatchers.IO) {
+            app.db.eventDao().getAllNow(app.profileId)
+        }
         val unreadEventDates = mutableSetOf<Int>()
 
         events.forEach { event ->
@@ -189,5 +159,5 @@ class AgendaFragment : Fragment(), CoroutineScope {
         }}
 
         b.progressBar.visibility = View.GONE
-    }}}
+    }
 }

app/src/main/java/pl/szczodrzynski/edziennik/ui/agenda/DayDialog.kt

@@ -22,7 +22,7 @@ import pl.szczodrzynski.edziennik.ui.agenda.lessonchanges.LessonChangesEventRend
 import pl.szczodrzynski.edziennik.ui.agenda.teacherabsence.TeacherAbsenceDialog
 import pl.szczodrzynski.edziennik.ui.agenda.teacherabsence.TeacherAbsenceEvent
 import pl.szczodrzynski.edziennik.ui.agenda.teacherabsence.TeacherAbsenceEventRenderer
-import pl.szczodrzynski.edziennik.ui.dialogs.base.BindingDialog
+import pl.szczodrzynski.edziennik.ui.base.dialog.BindingDialog
 import pl.szczodrzynski.edziennik.ui.event.EventDetailsDialog
 import pl.szczodrzynski.edziennik.ui.event.EventListAdapter
 import pl.szczodrzynski.edziennik.ui.event.EventManualDialog

app/src/main/java/pl/szczodrzynski/edziennik/ui/agenda/lessonchanges/LessonChangesDialog.kt

@@ -7,7 +7,7 @@ import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
 import pl.szczodrzynski.edziennik.R
 import pl.szczodrzynski.edziennik.databinding.DialogLessonChangeListBinding
-import pl.szczodrzynski.edziennik.ui.dialogs.base.BindingDialog
+import pl.szczodrzynski.edziennik.ui.base.dialog.BindingDialog
 import pl.szczodrzynski.edziennik.ui.timetable.LessonDetailsDialog
 import pl.szczodrzynski.edziennik.utils.models.Date
 

app/src/main/java/pl/szczodrzynski/edziennik/ui/agenda/teacherabsence/TeacherAbsenceDialog.kt

@@ -7,7 +7,7 @@ import androidx.lifecycle.LifecycleOwner
 import androidx.recyclerview.widget.LinearLayoutManager
 import pl.szczodrzynski.edziennik.R
 import pl.szczodrzynski.edziennik.databinding.DialogTeacherAbsenceListBinding
-import pl.szczodrzynski.edziennik.ui.dialogs.base.BindingDialog
+import pl.szczodrzynski.edziennik.ui.base.dialog.BindingDialog
 import pl.szczodrzynski.edziennik.utils.models.Date
 
 class TeacherAbsenceDialog(

app/src/main/java/pl/szczodrzynski/edziennik/ui/announcements/AnnouncementsFragment.java

@@ -51,7 +51,6 @@ public class AnnouncementsFragment extends Fragment {
         app = (App) activity.getApplication();
         // activity, context and profile is valid
         b = DataBindingUtil.inflate(inflater, R.layout.fragment_announcements, container, false);
-        b.refreshLayout.setParent(activity.getSwipeRefreshLayout());
         return b.getRoot();
     }
 
@@ -77,10 +76,6 @@ public class AnnouncementsFragment extends Fragment {
                         })
         );
 
-        /*b.refreshLayout.setOnRefreshListener(() -> {
-            activity.syncCurrentFeature(MainActivity.DRAWER_ITEM_ANNOUNCEMENTS, b.refreshLayout);
-        });*/
-
         LinearLayoutManager linearLayoutManager = new LinearLayoutManager(getContext());
 
         //RecyclerViewExpandableItemManager expMgr = new RecyclerViewExpandableItemManager(null);
@@ -90,18 +85,6 @@ public class AnnouncementsFragment extends Fragment {
         recyclerView.setLayoutManager(linearLayoutManager);
         recyclerView.addItemDecoration(new SimpleDividerItemDecoration(view.getContext()));
 
-        recyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {
-            @Override
-            public void onScrollStateChanged(@NonNull RecyclerView recyclerView, int newState) {
-                if (recyclerView.canScrollVertically(-1)) {
-                    b.refreshLayout.setEnabled(false);
-                }
-                if (!recyclerView.canScrollVertically(-1) && newState == SCROLL_STATE_IDLE) {
-                    b.refreshLayout.setEnabled(true);
-                }
-            }
-        });
-
         app.getDb().announcementDao().getAll(App.Companion.getProfileId()).observe(getViewLifecycleOwner(), announcements -> {
             if (app == null || activity == null || b == null || !isAdded())
                 return;

app/src/main/java/pl/szczodrzynski/edziennik/ui/attendance/AttendanceDetailsDialog.kt

@@ -13,7 +13,7 @@ import pl.szczodrzynski.edziennik.R
 import pl.szczodrzynski.edziennik.data.db.full.AttendanceFull
 import pl.szczodrzynski.edziennik.databinding.AttendanceDetailsDialogBinding
 import pl.szczodrzynski.edziennik.ext.setTintColor
-import pl.szczodrzynski.edziennik.ui.dialogs.base.BindingDialog
+import pl.szczodrzynski.edziennik.ui.base.dialog.BindingDialog
 import pl.szczodrzynski.edziennik.ui.notes.setupNotesButton
 import pl.szczodrzynski.edziennik.utils.BetterLink
 import pl.szczodrzynski.edziennik.core.manager.NoteManager

app/src/main/java/pl/szczodrzynski/edziennik/ui/attendance/AttendanceFragment.kt

@@ -4,118 +4,59 @@
 
 package pl.szczodrzynski.edziennik.ui.attendance
 
-import android.os.AsyncTask
-import android.os.Bundle
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
-import android.widget.Toast
-import androidx.fragment.app.Fragment
 import com.mikepenz.iconics.typeface.library.community.material.CommunityMaterial
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.Job
-import pl.szczodrzynski.edziennik.App
 import pl.szczodrzynski.edziennik.MainActivity
 import pl.szczodrzynski.edziennik.R
 import pl.szczodrzynski.edziennik.data.enums.MetadataType
-import pl.szczodrzynski.edziennik.databinding.AttendanceFragmentBinding
+import pl.szczodrzynski.edziennik.databinding.BasePagerFragmentBinding
 import pl.szczodrzynski.edziennik.ext.Bundle
-import pl.szczodrzynski.edziennik.ext.addOnPageSelectedListener
-import pl.szczodrzynski.edziennik.ui.base.lazypager.FragmentLazyPagerAdapter
+import pl.szczodrzynski.edziennik.ui.base.fragment.PagerFragment
 import pl.szczodrzynski.edziennik.ui.dialogs.settings.AttendanceConfigDialog
 import pl.szczodrzynski.navlib.bottomsheet.items.BottomSheetPrimaryItem
-import pl.szczodrzynski.navlib.bottomsheet.items.BottomSheetSeparatorItem
-import kotlin.coroutines.CoroutineContext
 
-class AttendanceFragment : Fragment(), CoroutineScope {
+class AttendanceFragment : PagerFragment<BasePagerFragmentBinding, MainActivity>(
+    inflater = BasePagerFragmentBinding::inflate,
+) {
     companion object {
-        private const val TAG = "AttendanceFragment"
         const val VIEW_SUMMARY = 0
         const val VIEW_DAYS = 1
         const val VIEW_MONTHS = 2
         const val VIEW_TYPES = 3
         const val VIEW_LIST = 4
-        var pageSelection = 1
     }
 
-    private lateinit var app: App
-    private lateinit var activity: MainActivity
-    private lateinit var b: AttendanceFragmentBinding
-
-    private val job: Job = Job()
-    override val coroutineContext: CoroutineContext
-        get() = job + Dispatchers.Main
-
-    // local/private variables go here
-
-    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
-        activity = (getActivity() as MainActivity?) ?: return null
-        context ?: return null
-        app = activity.application as App
-        b = AttendanceFragmentBinding.inflate(inflater)
-        b.refreshLayout.setParent(activity.swipeRefreshLayout)
-        return b.root
-    }
-
-    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
-        if (!isAdded) return
-
-        activity.bottomSheet.prependItems(
-                BottomSheetPrimaryItem(true)
-                        .withTitle(R.string.menu_attendance_config)
-                        .withIcon(CommunityMaterial.Icon.cmd_cog_outline)
-                        .withOnClickListener(View.OnClickListener {
-                            activity.bottomSheet.close()
-                            AttendanceConfigDialog(activity, true, null, null).show()
-                        }),
-                BottomSheetSeparatorItem(true),
-                BottomSheetPrimaryItem(true)
-                        .withTitle(R.string.menu_mark_as_read)
-                        .withIcon(CommunityMaterial.Icon.cmd_eye_check_outline)
-                        .withOnClickListener(View.OnClickListener {
-                            activity.bottomSheet.close()
-                            AsyncTask.execute { App.db.metadataDao().setAllSeen(App.profileId, MetadataType.ATTENDANCE, true) }
-                            Toast.makeText(activity, R.string.main_menu_mark_as_read_success, Toast.LENGTH_SHORT).show()
-                        })
-        )
-        activity.gainAttention()
-
-        if (pageSelection == 1)
-            pageSelection = app.profile.config.attendance.attendancePageSelection
-
-        val pagerAdapter = FragmentLazyPagerAdapter(
-            parentFragmentManager,
-                b.refreshLayout,
-                listOf(
-                        AttendanceSummaryFragment() to getString(R.string.attendance_tab_summary),
-
-                        AttendanceListFragment().apply {
-                            arguments = Bundle("viewType" to VIEW_DAYS)
-                        } to getString(R.string.attendance_tab_days),
-
-                        AttendanceListFragment().apply {
-                            arguments = Bundle("viewType" to VIEW_MONTHS)
-                        } to getString(R.string.attendance_tab_months),
-
-                        AttendanceListFragment().apply {
-                            arguments = Bundle("viewType" to VIEW_TYPES)
-                        } to getString(R.string.attendance_tab_types),
-
-                        AttendanceListFragment().apply {
-                            arguments = Bundle("viewType" to VIEW_LIST)
-                        } to getString(R.string.attendance_tab_list)
-                )
-        )
-        b.viewPager.apply {
-            offscreenPageLimit = 1
-            adapter = pagerAdapter
-            currentItem = pageSelection
-            addOnPageSelectedListener {
-                pageSelection = it
-                app.profile.config.attendance.attendancePageSelection = it
-            }
-            b.tabLayout.setupWithViewPager(this)
+    override var savedPageSelection
+        get() = app.profile.config.attendance.attendancePageSelection
+        set(value) {
+            app.profile.config.attendance.attendancePageSelection = value
         }
-    }
+
+    override fun getMarkAsReadType() = MetadataType.ATTENDANCE
+    override fun getBottomSheetItems() = listOf(
+        BottomSheetPrimaryItem(true)
+            .withTitle(R.string.menu_attendance_config)
+            .withIcon(CommunityMaterial.Icon.cmd_cog_outline)
+            .withOnClickListener {
+                activity.bottomSheet.close()
+                AttendanceConfigDialog(activity, true, null, null).show()
+            },
+    )
+
+    override fun getTabLayout() = b.tabLayout
+    override fun getViewPager() = b.viewPager
+    override suspend fun onCreatePages() = listOf(
+        AttendanceSummaryFragment() to getString(R.string.attendance_tab_summary),
+        AttendanceListFragment().apply {
+            arguments = Bundle("viewType" to VIEW_DAYS)
+        } to getString(R.string.attendance_tab_days),
+        AttendanceListFragment().apply {
+            arguments = Bundle("viewType" to VIEW_MONTHS)
+        } to getString(R.string.attendance_tab_months),
+        AttendanceListFragment().apply {
+            arguments = Bundle("viewType" to VIEW_TYPES)
+        } to getString(R.string.attendance_tab_types),
+        AttendanceListFragment().apply {
+            arguments = Bundle("viewType" to VIEW_LIST)
+        } to getString(R.string.attendance_tab_list)
+    )
 }

app/src/main/java/pl/szczodrzynski/edziennik/ui/attendance/AttendanceListFragment.kt

@@ -5,13 +5,12 @@
 package pl.szczodrzynski.edziennik.ui.attendance
 
 import android.os.Bundle
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
 import androidx.core.view.isVisible
 import androidx.lifecycle.Observer
 import androidx.recyclerview.widget.LinearLayoutManager
-import kotlinx.coroutines.*
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
 import pl.szczodrzynski.edziennik.App
 import pl.szczodrzynski.edziennik.MainActivity
 import pl.szczodrzynski.edziennik.data.db.entity.Attendance
@@ -22,41 +21,20 @@ import pl.szczodrzynski.edziennik.ext.startCoroutineTimer
 import pl.szczodrzynski.edziennik.ui.attendance.models.AttendanceDayRange
 import pl.szczodrzynski.edziennik.ui.attendance.models.AttendanceMonth
 import pl.szczodrzynski.edziennik.ui.attendance.models.AttendanceTypeGroup
-import pl.szczodrzynski.edziennik.ui.base.lazypager.LazyFragment
+import pl.szczodrzynski.edziennik.ui.base.fragment.BaseFragment
 import pl.szczodrzynski.edziennik.ui.grades.models.GradesSubject
 import pl.szczodrzynski.edziennik.utils.models.Date
-import kotlin.coroutines.CoroutineContext
 
-class AttendanceListFragment : LazyFragment(), CoroutineScope {
-    companion object {
-        private const val TAG = "AttendanceListFragment"
-    }
+class AttendanceListFragment : BaseFragment<AttendanceListFragmentBinding, MainActivity>(
+    inflater = AttendanceListFragmentBinding::inflate,
+) {
 
-    private lateinit var app: App
-    private lateinit var activity: MainActivity
-    private lateinit var b: AttendanceListFragmentBinding
+    override fun getRefreshScrollingView() = b.list
 
-    private val job: Job = Job()
-    override val coroutineContext: CoroutineContext
-        get() = job + Dispatchers.Main
-
-    // local/private variables go here
-    private val manager
-        get() = app.attendanceManager
     private var viewType = AttendanceFragment.VIEW_DAYS
     private var expandSubjectId = 0L
 
-    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
-        activity = (getActivity() as MainActivity?) ?: return null
-        context ?: return null
-        app = activity.application as App
-        b = AttendanceListFragmentBinding.inflate(inflater)
-        return b.root
-    }
-
-    override fun onPageCreated(): Boolean { startCoroutineTimer(100L) {
-        if (!isAdded) return@startCoroutineTimer
-
+    override suspend fun onViewReady(savedInstanceState: Bundle?) {
         viewType = arguments?.getInt("viewType") ?: AttendanceFragment.VIEW_DAYS
         expandSubjectId = arguments?.getLong("gradesSubjectId") ?: 0L
 
@@ -77,11 +55,9 @@ class AttendanceListFragment : LazyFragment(), CoroutineScope {
                 b.list.apply {
                     setHasFixedSize(true)
                     layoutManager = LinearLayoutManager(context)
-                    addOnScrollListener(onScrollListener)
                 }
             }
             adapter.notifyDataSetChanged()
-            setSwipeToRefresh(adapter.items.isNullOrEmpty())
 
             if (firstRun) {
                 expandSubject(adapter)
@@ -90,7 +66,7 @@ class AttendanceListFragment : LazyFragment(), CoroutineScope {
 
             // show/hide relevant views
             b.progressBar.isVisible = false
-            if (adapter.items.isNullOrEmpty()) {
+            if (adapter.items.isEmpty()) {
                 b.list.isVisible = false
                 b.noData.isVisible = true
             } else {
@@ -102,7 +78,7 @@ class AttendanceListFragment : LazyFragment(), CoroutineScope {
         adapter.onAttendanceClick = {
             AttendanceDetailsDialog(activity, it).show()
         }
-    }; return true}
+    }
 
     private fun expandSubject(adapter: AttendanceAdapter) {
         var expandSubjectModel: GradesSubject? = null

app/src/main/java/pl/szczodrzynski/edziennik/ui/attendance/AttendanceSummaryFragment.kt

@@ -6,9 +6,6 @@ package pl.szczodrzynski.edziennik.ui.attendance
 
 import android.graphics.Color
 import android.os.Bundle
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
 import android.view.animation.AccelerateDecelerateInterpolator
 import android.view.animation.Animation
 import android.view.animation.Transformation
@@ -19,8 +16,12 @@ import androidx.core.view.isInvisible
 import androidx.core.view.isVisible
 import androidx.lifecycle.Observer
 import androidx.recyclerview.widget.LinearLayoutManager
-import kotlinx.coroutines.*
-import pl.szczodrzynski.edziennik.*
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
+import pl.szczodrzynski.edziennik.App
+import pl.szczodrzynski.edziennik.MainActivity
+import pl.szczodrzynski.edziennik.R
 import pl.szczodrzynski.edziennik.data.db.entity.Attendance
 import pl.szczodrzynski.edziennik.data.db.full.AttendanceFull
 import pl.szczodrzynski.edziennik.databinding.AttendanceSummaryFragmentBinding
@@ -30,43 +31,26 @@ import pl.szczodrzynski.edziennik.ext.setText
 import pl.szczodrzynski.edziennik.ext.startCoroutineTimer
 import pl.szczodrzynski.edziennik.ui.attendance.AttendanceFragment.Companion.VIEW_SUMMARY
 import pl.szczodrzynski.edziennik.ui.attendance.models.AttendanceSubject
-import pl.szczodrzynski.edziennik.ui.base.lazypager.LazyFragment
+import pl.szczodrzynski.edziennik.ui.base.fragment.BaseFragment
 import pl.szczodrzynski.edziennik.ui.grades.models.GradesSubject
 import pl.szczodrzynski.edziennik.utils.models.Date
 import java.text.DecimalFormat
-import kotlin.coroutines.CoroutineContext
 
-class AttendanceSummaryFragment : LazyFragment(), CoroutineScope {
+class AttendanceSummaryFragment : BaseFragment<AttendanceSummaryFragmentBinding, MainActivity>(
+    inflater = AttendanceSummaryFragmentBinding::inflate,
+) {
     companion object {
-        private const val TAG = "AttendanceSummaryFragment"
         private var periodSelection = 0
     }
 
-    private lateinit var app: App
-    private lateinit var activity: MainActivity
-    private lateinit var b: AttendanceSummaryFragmentBinding
+    override fun getRefreshScrollingView() = b.list
 
-    private val job: Job = Job()
-    override val coroutineContext: CoroutineContext
-        get() = job + Dispatchers.Main
-
-    // local/private variables go here
     private val manager
         get() = app.attendanceManager
     private var expandSubjectId = 0L
     private var attendance = listOf<AttendanceFull>()
 
-    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
-        activity = (getActivity() as MainActivity?) ?: return null
-        context ?: return null
-        app = activity.application as App
-        b = AttendanceSummaryFragmentBinding.inflate(inflater)
-        return b.root
-    }
-
-    override fun onPageCreated(): Boolean { startCoroutineTimer(100L) {
-        if (!isAdded) return@startCoroutineTimer
-
+    override suspend fun onViewReady(savedInstanceState: Bundle?) {
         expandSubjectId = arguments?.getLong("gradesSubjectId") ?: 0L
 
         val adapter = AttendanceAdapter(activity, VIEW_SUMMARY)
@@ -91,7 +75,6 @@ class AttendanceSummaryFragment : LazyFragment(), CoroutineScope {
                 }
             }
             adapter.notifyDataSetChanged()
-            setSwipeToRefresh(adapter.items.isNullOrEmpty())
 
             if (firstRun) {
                 expandSubject(adapter)
@@ -100,7 +83,7 @@ class AttendanceSummaryFragment : LazyFragment(), CoroutineScope {
 
             // show/hide relevant views
             b.progressBar.isVisible = false
-            if (adapter.items.isNullOrEmpty()) {
+            if (adapter.items.isEmpty()) {
                 b.statsLayout.isVisible = false
                 b.list.isVisible = false
                 b.noData.isVisible = true
@@ -144,7 +127,7 @@ class AttendanceSummaryFragment : LazyFragment(), CoroutineScope {
                 adapter.notifyDataSetChanged()
             }
         }
-    }; return true}
+    }
 
     private fun expandSubject(adapter: AttendanceAdapter) {
         var expandSubjectModel: GradesSubject? = null

app/src/main/java/pl/szczodrzynski/edziennik/ui/base/dialog/BaseDialog.kt

@@ -2,7 +2,7 @@
  * Copyright (c) Kuba Szczodrzyński 2021-10-18.
  */
 
-package pl.szczodrzynski.edziennik.ui.dialogs.base
+package pl.szczodrzynski.edziennik.ui.base.dialog
 
 import android.view.View
 import androidx.appcompat.app.AlertDialog

app/src/main/java/pl/szczodrzynski/edziennik/ui/base/dialog/BindingDialog.kt

@@ -2,7 +2,7 @@
  * Copyright (c) Kuba Szczodrzyński 2021-10-18.
  */
 
-package pl.szczodrzynski.edziennik.ui.dialogs.base
+package pl.szczodrzynski.edziennik.ui.base.dialog
 
 import android.view.LayoutInflater
 import android.view.View

app/src/main/java/pl/szczodrzynski/edziennik/ui/base/dialog/ConfigDialog.kt

@@ -2,7 +2,7 @@
  * Copyright (c) Kuba Szczodrzyński 2021-10-18.
  */
 
-package pl.szczodrzynski.edziennik.ui.dialogs.base
+package pl.szczodrzynski.edziennik.ui.base.dialog
 
 import androidx.appcompat.app.AppCompatActivity
 import androidx.viewbinding.ViewBinding

app/src/main/java/pl/szczodrzynski/edziennik/ui/base/dialog/ViewDialog.kt

@@ -2,7 +2,7 @@
  * Copyright (c) Kuba Szczodrzyński 2021-10-18.
  */
 
-package pl.szczodrzynski.edziennik.ui.dialogs.base
+package pl.szczodrzynski.edziennik.ui.base.dialog
 
 import android.view.View
 import androidx.appcompat.app.AppCompatActivity

app/src/main/java/pl/szczodrzynski/edziennik/ui/base/fragment/ActivityUtil.kt

@@ -0,0 +1,102 @@
+/*
+ * Copyright (c) Kuba Szczodrzyński 2024-7-3.
+ */
+
+package pl.szczodrzynski.edziennik.ui.base.fragment
+
+import android.annotation.SuppressLint
+import android.view.MotionEvent
+import android.view.View
+import android.widget.Toast
+import androidx.recyclerview.widget.RecyclerView
+import com.mikepenz.iconics.typeface.library.community.material.CommunityMaterial
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import pl.szczodrzynski.edziennik.MainActivity
+import pl.szczodrzynski.edziennik.R
+import pl.szczodrzynski.edziennik.ui.login.LoginActivity
+import pl.szczodrzynski.navlib.bottomsheet.items.BottomSheetPrimaryItem
+import pl.szczodrzynski.navlib.bottomsheet.items.BottomSheetSeparatorItem
+
+@SuppressLint("ClickableViewAccessibility")
+internal fun BaseFragment<*, *>.setupCanRefresh() {
+    when (val view = getRefreshScrollingView()) {
+        is RecyclerView -> {
+            canRefresh = !view.canScrollVertically(-1)
+            view.addOnScrollListener(object : RecyclerView.OnScrollListener() {
+                override fun onScrollStateChanged(recyclerView: RecyclerView, newState: Int) {
+                    // disable refresh when scrolled down
+                    if (recyclerView.canScrollVertically(-1))
+                        canRefresh = false
+                    // enable refresh when scrolled to the top and not scrolling anymore
+                    else if (newState == RecyclerView.SCROLL_STATE_IDLE)
+                        canRefresh = true
+                }
+            })
+        }
+
+        is View -> {
+            canRefresh = !view.canScrollVertically(-1)
+            var isTouched = false
+            view.setOnTouchListener { _, event ->
+                // keep track of the touch state
+                when (event.action) {
+                    MotionEvent.ACTION_UP, MotionEvent.ACTION_CANCEL -> isTouched = false
+                    MotionEvent.ACTION_DOWN -> isTouched = true
+                }
+                // disable refresh when scrolled down
+                if (view.canScrollVertically(-1))
+                    canRefresh = false
+                // enable refresh when scrolled to the top and not touching anymore
+                else if (!isTouched)
+                    canRefresh = true
+                false
+            }
+        }
+
+        else -> {
+            // dispatch the default value to the activity
+            canRefresh = canRefresh
+        }
+    }
+}
+
+internal fun BaseFragment<*, *>.setupMainActivity(activity: MainActivity) {
+    val items = getBottomSheetItems().toMutableList()
+    getMarkAsReadType()?.let { metadataType ->
+        if (items.isNotEmpty())
+            items += BottomSheetSeparatorItem(true)
+        items += BottomSheetPrimaryItem(true)
+            .withTitle(R.string.menu_mark_as_read)
+            .withIcon(CommunityMaterial.Icon.cmd_eye_check_outline)
+            .withOnClickListener {
+                activity.bottomSheet.close()
+                launch(Dispatchers.IO) {
+                    app.db.metadataDao().setAllSeen(app.profileId, metadataType, true)
+                }
+                Toast.makeText(
+                    activity,
+                    R.string.main_menu_mark_as_read_success,
+                    Toast.LENGTH_SHORT
+                ).show()
+            }
+    }
+    if (items.isNotEmpty()) {
+        activity.navView.bottomSheet.prependItems(*items.toTypedArray())
+    }
+
+    getFab()?.let { (text, icon) ->
+        activity.navView.bottomBar.apply {
+            fabEnable = true
+            fabExtendedText = app.getString(text)
+            fabIcon = icon
+            setFabOnClickListener {
+                launch {
+                    onFabClick()
+                }
+            }
+        }
+    }
+}
+
+internal fun BaseFragment<*, *>.setupLoginActivity(activity: LoginActivity) {}

app/src/main/java/pl/szczodrzynski/edziennik/ui/base/fragment/BaseFragment.kt

@@ -0,0 +1,182 @@
+/*
+ * Copyright (c) Kuba Szczodrzyński 2024-7-2.
+ */
+
+package pl.szczodrzynski.edziennik.ui.base.fragment
+
+import android.content.Context
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.appcompat.app.AppCompatActivity
+import androidx.fragment.app.Fragment
+import androidx.viewbinding.ViewBinding
+import com.mikepenz.iconics.typeface.IIcon
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.Job
+import org.greenrobot.eventbus.EventBus
+import pl.szczodrzynski.edziennik.App
+import pl.szczodrzynski.edziennik.MainActivity
+import pl.szczodrzynski.edziennik.data.enums.MetadataType
+import pl.szczodrzynski.edziennik.ext.startCoroutineTimer
+import pl.szczodrzynski.edziennik.ui.login.LoginActivity
+import pl.szczodrzynski.navlib.bottomsheet.items.IBottomSheetItem
+import kotlin.coroutines.CoroutineContext
+
+@Suppress("UNCHECKED_CAST")
+abstract class BaseFragment<B : ViewBinding, A : AppCompatActivity>(
+    private val inflater: ((inflater: LayoutInflater, parent: ViewGroup?, attachToParent: Boolean) -> B)?,
+) : Fragment(), CoroutineScope {
+
+    internal lateinit var app: App
+    internal lateinit var activity: A
+    internal lateinit var b: B
+
+    private var isViewReady: Boolean = false
+    private var inState: Bundle? = null
+
+    /**
+     * Enables or disables the activity's SwipeRefreshLayout.
+     * Use only if [getRefreshScrollingView] is not used.
+     *
+     * The [PagerFragment] manages its [canRefresh] state
+     * based on the value of the currently selected page.
+     */
+    internal var canRefresh = false
+        set(value) {
+            field = value
+            (activity as? MainActivity)?.swipeRefreshLayout?.isEnabled =
+                !canRefreshDisabled && value
+        }
+
+    /**
+     * Forcefully disables the activity's SwipeRefreshLayout
+     * if [getRefreshScrollingView] is used.
+     */
+    internal var canRefreshDisabled = false
+        set(value) {
+            field = value
+            canRefresh = canRefresh
+        }
+
+    private var job = Job()
+    final override val coroutineContext: CoroutineContext
+        get() = job + Dispatchers.Main
+
+    final override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?,
+    ): View? {
+        job.cancel()
+        job = Job()
+        activity = getActivity() as? A ?: return null
+        context ?: return null
+        app = activity.application as App
+        // inflate using the constructor parameter or the body method
+        b = this.inflater?.invoke(inflater, container, false)
+            ?: inflate(inflater, container, false)
+            ?: return null
+        isViewReady = false // reinitialize the view in onResume()
+        inState = savedInstanceState // save the instance state for onResume()
+        return b.root
+    }
+
+    override fun onResume() {
+        super.onResume()
+        try {
+            EventBus.getDefault().register(this)
+        } catch (_: Exception) {
+        }
+
+        if (!isAdded || isViewReady)
+            return
+        isViewReady = true
+        setupCanRefresh()
+        (activity as? MainActivity)?.let(::setupMainActivity)
+        (activity as? LoginActivity)?.let(::setupLoginActivity)
+        // let the UI transition for a moment
+        startCoroutineTimer(100L) {
+            if (!isAdded)
+                return@startCoroutineTimer
+            onViewReady(inState)
+            (activity as? MainActivity)?.gainAttention()
+            (activity as? MainActivity)?.gainAttentionFAB()
+        }
+    }
+
+    override fun onPause() {
+        super.onPause()
+        try {
+            EventBus.getDefault().unregister(this)
+        } catch (_: Exception) {
+        }
+    }
+
+    final override fun onDestroyView() {
+        super.onDestroyView()
+        isViewReady = false
+        job.cancel()
+    }
+
+    final override fun onViewCreated(view: View, savedInstanceState: Bundle?) =
+        super.onViewCreated(view, savedInstanceState)
+
+    final override fun onViewStateRestored(savedInstanceState: Bundle?) =
+        super.onViewStateRestored(savedInstanceState)
+
+    final override fun onAttach(context: Context) = super.onAttach(context)
+    final override fun onCreate(savedInstanceState: Bundle?) = super.onCreate(savedInstanceState)
+    final override fun onStart() = super.onStart()
+    final override fun onStop() = super.onStop()
+    final override fun onDestroy() = super.onDestroy()
+    final override fun onDetach() = super.onDetach()
+
+    /**
+     * Called if there is no inflater passed in the constructor.
+     * Must return a non-null value.
+     */
+    open fun inflate(
+        inflater: LayoutInflater,
+        parent: ViewGroup?,
+        attachToParent: Boolean,
+    ): B? = null
+
+    /**
+     * Called to retrieve the scrolling view contained in the fragment.
+     * The scrolling view is configured to act nicely with the SwipeRefreshLayout.
+     */
+    open fun getRefreshScrollingView(): View? = null
+
+    /**
+     * Called to retrieve the FAB label resource and the icon.
+     * If provided, a FAB is added and shown automatically.
+     */
+    open fun getFab(): Pair<Int, IIcon>? = null
+
+    /**
+     * Called to retrieve the [MetadataType] of items displayed by the fragment.
+     * If provided, a "mark as read" item is added to the bottom sheet.
+     */
+    open fun getMarkAsReadType(): MetadataType? = null
+
+    /**
+     * Called to retrieve any extra bottom sheet items that should be displayed.
+     */
+    open fun getBottomSheetItems() = listOf<IBottomSheetItem<*>>()
+
+    /**
+     * Called after the fragment is initialized (default) or when is becomes visible (pager).
+     *
+     * Perform view initialization and other tasks, if necessary. Remember to call super
+     * if used in a [PagerFragment].
+     */
+    open suspend fun onViewReady(savedInstanceState: Bundle?) {}
+
+    /**
+     * Called when the FAB is clicked (if enabled).
+     */
+    open suspend fun onFabClick() {}
+}

app/src/main/java/pl/szczodrzynski/edziennik/ui/base/fragment/PagerFragment.kt

@@ -0,0 +1,135 @@
+/*
+ * Copyright (c) Kuba Szczodrzyński 2024-7-3.
+ */
+
+package pl.szczodrzynski.edziennik.ui.base.fragment
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.ViewGroup
+import androidx.appcompat.app.AppCompatActivity
+import androidx.fragment.app.Fragment
+import androidx.viewbinding.ViewBinding
+import androidx.viewpager2.adapter.FragmentStateAdapter
+import androidx.viewpager2.widget.ViewPager2
+import com.google.android.material.tabs.TabLayout
+import com.google.android.material.tabs.TabLayoutMediator
+import kotlinx.coroutines.launch
+import pl.szczodrzynski.edziennik.ext.set
+
+abstract class PagerFragment<B : ViewBinding, A : AppCompatActivity>(
+    inflater: ((inflater: LayoutInflater, parent: ViewGroup?, attachToParent: Boolean) -> B)?,
+) : BaseFragment<B, A>(inflater) {
+
+    private lateinit var pages: List<Pair<Fragment, String>>
+    private val fragmentCache = mutableMapOf<Int, Fragment>()
+
+    /**
+     * Stores the default page index that is activated when
+     * entering the fragment. Updated every time a new page
+     * is selected.
+     *
+     * Override with a getter and setter to make it backed by
+     * e.g. app.config. Set this value before calling super.[onViewReady]
+     * to provide a one-time default.
+     */
+    protected open var savedPageSelection = -1
+
+    override suspend fun onViewReady(savedInstanceState: Bundle?) {
+        if (savedPageSelection == -1)
+            savedPageSelection = savedInstanceState?.getInt("pageSelection") ?: 0
+
+        pages = onCreatePages()
+
+        val adapter = object : FragmentStateAdapter(this) {
+            override fun getItemCount() = getPageCount()
+            override fun createFragment(position: Int): Fragment {
+                val fragment = getPageFragment(position)
+                fragmentCache[position] = fragment
+                return fragment
+            }
+        }
+
+        getViewPager().let {
+            it.offscreenPageLimit = 1
+            it.adapter = adapter
+            it.setCurrentItem(savedPageSelection, false)
+            it.registerOnPageChangeCallback(object : ViewPager2.OnPageChangeCallback() {
+                override fun onPageScrollStateChanged(state: Int) {
+                    canRefresh = when (state) {
+                        ViewPager2.SCROLL_STATE_IDLE -> {
+                            val fragment =
+                                fragmentCache[it.currentItem] as? BaseFragment<*, *>
+                            fragment != null && !fragment.canRefreshDisabled && fragment.canRefresh
+                        }
+
+                        else -> false
+                    }
+                }
+
+                override fun onPageSelected(position: Int) {
+                    savedPageSelection = position
+                    launch {
+                        this@PagerFragment.onPageSelected(position)
+                    }
+                }
+            })
+        }
+
+        TabLayoutMediator(getTabLayout(), getViewPager()) { tab, position ->
+            tab.text = getPageTitle(position)
+        }.attach()
+
+        onPageSelected(savedPageSelection)
+    }
+
+    override fun onSaveInstanceState(outState: Bundle) {
+        super.onSaveInstanceState(outState)
+        outState["pageSelection"] = getViewPager().currentItem
+    }
+
+    /**
+     * Navigates to the specified page with a smooth scroll animation.
+     *
+     * To navigate without smooth scroll, use [savedPageSelection] instead
+     * to provide a default page selection.
+     */
+    protected fun goToPage(position: Int) {
+        getViewPager().setCurrentItem(position, true)
+        savedPageSelection = position
+        launch {
+            onPageSelected(position)
+        }
+    }
+
+    /**
+     * Called to retrieve the [TabLayout] view of the pager fragment.
+     */
+    abstract fun getTabLayout(): TabLayout
+
+    /**
+     * Called to retrieve the [ViewPager2] view of the pager fragment.
+     */
+    abstract fun getViewPager(): ViewPager2
+
+    /**
+     * Called to retrieve a list of fragments (and their titles) for the pager.
+     * Only used with the default implementation of [getPageCount], [getPageFragment]
+     * and [getPageTitle].
+     */
+    open suspend fun onCreatePages() = listOf<Pair<Fragment, String>>()
+
+    open fun getPageCount() = pages.size
+    open fun getPageFragment(position: Int) = pages[position].first
+    open fun getPageTitle(position: Int) = pages[position].second
+
+    /**
+     * Called when a new page is selected, by either:
+     * - opening the fragment for the first time (default page),
+     * - calling [goToPage], or
+     * - navigating to another page by the user.
+     *
+     * The [savedPageSelection] is updated before this method is called.
+     */
+    open suspend fun onPageSelected(position: Int) {}
+}

app/src/main/java/pl/szczodrzynski/edziennik/ui/base/lazypager/FragmentLazyPagerAdapter.kt

@@ -1,18 +0,0 @@
-/*
- * Copyright (c) Kuba Szczodrzyński 2020-3-30.
- */
-
-package pl.szczodrzynski.edziennik.ui.base.lazypager
-
-import androidx.fragment.app.FragmentManager
-import androidx.swiperefreshlayout.widget.SwipeRefreshLayout
-
-class FragmentLazyPagerAdapter(
-        fragmentManager: FragmentManager,
-        swipeRefreshLayout: SwipeRefreshLayout? = null,
-        val fragments: List<Pair<LazyFragment, CharSequence>>
-) : LazyPagerAdapter(fragmentManager, swipeRefreshLayout) {
-    override fun getPage(position: Int) = fragments[position].first
-    override fun getPageTitle(position: Int) = fragments[position].second
-    override fun getCount() = fragments.size
-}

app/src/main/java/pl/szczodrzynski/edziennik/ui/base/lazypager/LazyFragment.kt

@@ -1,56 +0,0 @@
-/*
- * Copyright (c) Kuba Szczodrzyński 2020-3-29.
- */
-
-package pl.szczodrzynski.edziennik.ui.base.lazypager
-
-import android.os.Bundle
-import androidx.fragment.app.Fragment
-import androidx.recyclerview.widget.RecyclerView
-
-abstract class LazyFragment : Fragment() {
-    private var isPageCreated = false
-    internal var position = -1
-    internal var swipeRefreshLayoutCallback: ((position: Int, isEnabled: Boolean) -> Unit)? = null
-    internal var onPageDestroy: ((position: Int, outState: Bundle?) -> Unit?)? = null
-
-    /**
-     * Called when the page is first shown, or if previous
-     * [onPageCreated] returned false
-     *
-     * @return true if the view is set up
-     * @return false if the setup failed. The method may be then called
-     * again, when page becomes visible.
-     */
-    abstract fun onPageCreated(): Boolean
-
-    fun enableSwipeToRefresh() = swipeRefreshLayoutCallback?.invoke(position, true)
-    fun disableSwipeToRefresh() = swipeRefreshLayoutCallback?.invoke(position, false)
-    fun setSwipeToRefresh(enabled: Boolean) = swipeRefreshLayoutCallback?.invoke(position, enabled)
-
-    val onScrollListener: RecyclerView.OnScrollListener
-        get() = object : RecyclerView.OnScrollListener() {
-            override fun onScrollStateChanged(recyclerView: RecyclerView, newState: Int) {
-                if (recyclerView.canScrollVertically(-1))
-                    disableSwipeToRefresh()
-                if (!recyclerView.canScrollVertically(-1) && newState == RecyclerView.SCROLL_STATE_IDLE)
-                    enableSwipeToRefresh()
-            }
-        }
-
-    internal fun createPage() {
-        if (!isPageCreated && isAdded) {
-            isPageCreated = onPageCreated()
-        }
-    }
-
-    override fun onDestroyView() {
-        isPageCreated = false
-        super.onDestroyView()
-    }
-
-    override fun onResume() {
-        createPage()
-        super.onResume()
-    }
-}

app/src/main/java/pl/szczodrzynski/edziennik/ui/base/lazypager/LazyPagerAdapter.kt

@@ -1,28 +0,0 @@
-/*
- * Copyright (c) Kuba Szczodrzyński 2020-3-29.
- */
-
-package pl.szczodrzynski.edziennik.ui.base.lazypager
-
-import android.util.SparseBooleanArray
-import androidx.core.util.set
-import androidx.fragment.app.FragmentManager
-import androidx.fragment.app.FragmentStatePagerAdapter
-import androidx.swiperefreshlayout.widget.SwipeRefreshLayout
-
-abstract class LazyPagerAdapter(fragmentManager: FragmentManager, val swipeRefreshLayout: SwipeRefreshLayout? = null) : FragmentStatePagerAdapter(fragmentManager, BEHAVIOR_RESUME_ONLY_CURRENT_FRAGMENT) {
-    internal val enabledList = SparseBooleanArray()
-    private val refreshLayoutCallback: (position: Int, isEnabled: Boolean) -> Unit = { position, isEnabled ->
-        swipeRefreshLayout?.isEnabled = isEnabled
-        if (position > -1)
-            enabledList[position] = isEnabled
-    }
-    final override fun getItem(position: Int): LazyFragment {
-        return getPage(position).also {
-            it.position = position
-            it.swipeRefreshLayoutCallback = refreshLayoutCallback
-        }
-    }
-    abstract fun getPage(position: Int): LazyFragment
-    abstract override fun getPageTitle(position: Int): CharSequence
-}

app/src/main/java/pl/szczodrzynski/edziennik/ui/base/lazypager/LazyViewPager.kt

@@ -1,42 +0,0 @@
-/*
- * Copyright (c) Kuba Szczodrzyński 2020-3-29.
- */
-
-package pl.szczodrzynski.edziennik.ui.base.lazypager
-
-import android.content.Context
-import android.util.AttributeSet
-import androidx.viewpager.widget.ViewPager
-
-class LazyViewPager @JvmOverloads constructor(
-        context: Context, attrs: AttributeSet? = null
-) : ViewPager(context, attrs) {
-
-    private var pageSelection = -1
-    private var scrollState = 0
-
-    init {
-        addOnPageChangeListener(object : OnPageChangeListener {
-            override fun onPageScrollStateChanged(state: Int) {
-                scrollState = state
-                (adapter as? LazyPagerAdapter)?.let {
-                    it.swipeRefreshLayout?.isEnabled = state == SCROLL_STATE_IDLE && it.enabledList[pageSelection, true]
-                }
-            }
-
-            override fun onPageScrolled(position: Int, positionOffset: Float, positionOffsetPixels: Int) {
-
-            }
-
-            override fun onPageSelected(position: Int) {
-                pageSelection = position
-                (adapter as? LazyPagerAdapter)?.let {
-                    it.swipeRefreshLayout?.isEnabled = scrollState == SCROLL_STATE_IDLE && it.enabledList[pageSelection, true]
-                    val fragment = adapter?.instantiateItem(this@LazyViewPager, position)
-                    val lazyFragment = fragment as? LazyFragment
-                    lazyFragment?.createPage()
-                }
-            }
-        })
-    }
-}

app/src/main/java/pl/szczodrzynski/edziennik/ui/base/views/AttachmentAdapter.kt

@@ -2,7 +2,7 @@
  * Copyright (c) Kuba Szczodrzyński 2020-4-1.
  */
 
-package pl.szczodrzynski.edziennik.ui.views
+package pl.szczodrzynski.edziennik.ui.base.views
 
 import android.content.Context
 import android.view.LayoutInflater
@@ -29,9 +29,9 @@ import pl.szczodrzynski.navlib.colorAttr
 import kotlin.coroutines.CoroutineContext
 
 class AttachmentAdapter(
-        val context: Context,
-        val onAttachmentClick: (item: Item) -> Unit,
-        val onAttachmentLongClick: ((view: Chip, item: Item) -> Unit)? = null
+    val context: Context,
+    val onAttachmentClick: (item: Item) -> Unit,
+    val onAttachmentLongClick: ((view: Chip, item: Item) -> Unit)? = null
 ) : RecyclerView.Adapter<AttachmentAdapter.ViewHolder>(), CoroutineScope {
     companion object {
         private const val TAG = "AttachmentAdapter"

app/src/main/java/pl/szczodrzynski/edziennik/ui/base/views/AttachmentsView.kt

@@ -2,7 +2,7 @@
  * Copyright (c) Kuba Szczodrzyński 2020-4-1.
  */
 
-package pl.szczodrzynski.edziennik.ui.views
+package pl.szczodrzynski.edziennik.ui.base.views
 
 import android.content.Context
 import android.os.Build
@@ -19,7 +19,6 @@ import pl.szczodrzynski.edziennik.App
 import pl.szczodrzynski.edziennik.R
 import pl.szczodrzynski.edziennik.data.api.edziennik.EdziennikTask
 import pl.szczodrzynski.edziennik.data.api.events.AttachmentGetEvent
-import pl.szczodrzynski.edziennik.ext.get
 import pl.szczodrzynski.edziennik.ext.isNotNullNorEmpty
 import pl.szczodrzynski.edziennik.utils.SimpleDividerItemDecoration
 import pl.szczodrzynski.edziennik.utils.Utils
@@ -46,7 +45,7 @@ class AttachmentsView @JvmOverloads constructor(
         val activity = context as? AppCompatActivity ?: return
         val list = this as? RecyclerView ?: return
 
-        val profileId = arguments.get<Int>("profileId") ?: return
+        val profileId = arguments.getInt("profileId")
         val attachmentIds = arguments.getLongArray("attachmentIds") ?: return
         val attachmentNames = arguments.getStringArray("attachmentNames") ?: return
         val attachmentSizes = arguments.getLongArray("attachmentSizes")

app/src/main/java/pl/szczodrzynski/edziennik/ui/base/views/DateDropdown.kt

@@ -2,7 +2,7 @@
  * Copyright (c) Kuba Szczodrzyński 2020-2-23.
  */
 
-package pl.szczodrzynski.edziennik.ui.views
+package pl.szczodrzynski.edziennik.ui.base.views
 
 import android.content.Context
 import android.content.ContextWrapper

app/src/main/java/pl/szczodrzynski/edziennik/ui/base/views/EventTypeDropdown.kt

@@ -2,7 +2,7 @@
  * Copyright (c) Kuba Szczodrzyński 2021-4-14.
  */
 
-package pl.szczodrzynski.edziennik.ui.views
+package pl.szczodrzynski.edziennik.ui.base.views
 
 import android.content.Context
 import android.util.AttributeSet

app/src/main/java/pl/szczodrzynski/edziennik/ui/base/views/IconicsMaterialButton.kt

@@ -2,7 +2,7 @@
  * Copyright (c) Kuba Szczodrzyński 2024-6-20.
  */
 
-package pl.szczodrzynski.edziennik.ui.views
+package pl.szczodrzynski.edziennik.ui.base.views
 
 import android.content.Context
 import android.util.AttributeSet

app/src/main/java/pl/szczodrzynski/edziennik/ui/base/views/SubjectDropdown.kt

@@ -2,7 +2,7 @@
  * Copyright (c) Kuba Szczodrzyński 2020-2-23.
  */
 
-package pl.szczodrzynski.edziennik.ui.views
+package pl.szczodrzynski.edziennik.ui.base.views
 
 import android.content.Context
 import android.content.ContextWrapper

app/src/main/java/pl/szczodrzynski/edziennik/ui/base/views/TeacherDropdown.kt

@@ -2,7 +2,7 @@
  * Copyright (c) Kuba Szczodrzyński 2020-2-23.
  */
 
-package pl.szczodrzynski.edziennik.ui.views
+package pl.szczodrzynski.edziennik.ui.base.views
 
 import android.content.Context
 import android.util.AttributeSet

app/src/main/java/pl/szczodrzynski/edziennik/ui/base/views/TeamDropdown.kt

@@ -2,7 +2,7 @@
  * Copyright (c) Kuba Szczodrzyński 2020-3-7.
  */
 
-package pl.szczodrzynski.edziennik.ui.views
+package pl.szczodrzynski.edziennik.ui.base.views
 
 import android.content.Context
 import android.util.AttributeSet

app/src/main/java/pl/szczodrzynski/edziennik/ui/base/views/TimeDropdown.kt

@@ -2,7 +2,7 @@
  * Copyright (c) Kuba Szczodrzyński 2020-2-23.
  */
 
-package pl.szczodrzynski.edziennik.ui.views
+package pl.szczodrzynski.edziennik.ui.base.views
 
 import android.content.Context
 import android.content.ContextWrapper

app/src/main/java/pl/szczodrzynski/edziennik/ui/behaviour/BehaviourFragment.kt

@@ -1,63 +1,32 @@
 package pl.szczodrzynski.edziennik.ui.behaviour
 
 import android.graphics.Color
-import android.os.AsyncTask
 import android.os.Bundle
-import android.view.*
-import android.widget.Toast
-import androidx.databinding.DataBindingUtil
-import androidx.fragment.app.Fragment
+import android.view.View
 import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerView
-import com.mikepenz.iconics.typeface.library.community.material.CommunityMaterial
 import pl.szczodrzynski.edziennik.App
 import pl.szczodrzynski.edziennik.App.Companion.profileId
 import pl.szczodrzynski.edziennik.MainActivity
 import pl.szczodrzynski.edziennik.R
 import pl.szczodrzynski.edziennik.data.db.entity.Notice
-import pl.szczodrzynski.edziennik.data.enums.MetadataType
 import pl.szczodrzynski.edziennik.data.db.full.NoticeFull
+import pl.szczodrzynski.edziennik.data.enums.MetadataType
 import pl.szczodrzynski.edziennik.databinding.FragmentBehaviourBinding
+import pl.szczodrzynski.edziennik.ui.base.fragment.BaseFragment
 import pl.szczodrzynski.edziennik.utils.Themes.getPrimaryTextColor
-import pl.szczodrzynski.navlib.bottomsheet.items.BottomSheetPrimaryItem
-import java.util.*
+import java.util.Locale
 
-class BehaviourFragment : Fragment() {
+class BehaviourFragment : BaseFragment<FragmentBehaviourBinding, MainActivity>(
+    inflater = FragmentBehaviourBinding::inflate,
+) {
 
-    private lateinit var app: App
-    private lateinit var activity: MainActivity
-    private lateinit var b: FragmentBehaviourBinding
+    override fun getMarkAsReadType() = MetadataType.NOTICE
     
     private var displayMode = MODE_YEAR
     private var noticeList: List<NoticeFull>? = null
-    
-    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
-        activity = (getActivity() as MainActivity?) ?: return null
-        context ?: return null
-        app = activity.application as App
-        b = DataBindingUtil.inflate(inflater, R.layout.fragment_behaviour, container, false)
-        b.refreshLayout.setParent(activity.swipeRefreshLayout)
-        return b.root
-    }
 
-    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
-        if (app == null || activity == null || b == null || !isAdded) return
-        activity.bottomSheet.prependItems(
-            BottomSheetPrimaryItem(true)
-                .withTitle(R.string.menu_mark_as_read)
-                .withIcon(CommunityMaterial.Icon.cmd_eye_check_outline)
-                .withOnClickListener { v3: View? ->
-                    activity.bottomSheet.close()
-                    AsyncTask.execute {
-                        App.db.metadataDao().setAllSeen(profileId, MetadataType.NOTICE, true)
-                    }
-                    Toast.makeText(
-                        activity,
-                        R.string.main_menu_mark_as_read_success,
-                        Toast.LENGTH_SHORT
-                    ).show()
-                }
-        )
+    override suspend fun onViewReady(savedInstanceState: Bundle?) {
         b.toggleGroup.check(when (displayMode) {
             0 -> R.id.allYear
             1 -> R.id.semester1
@@ -81,18 +50,8 @@ class BehaviourFragment : Fragment() {
         val linearLayoutManager = LinearLayoutManager(context)
         b.noticesView.setHasFixedSize(true)
         b.noticesView.layoutManager = linearLayoutManager
-        b.noticesView.addOnScrollListener(object : RecyclerView.OnScrollListener() {
-            override fun onScrollStateChanged(recyclerView: RecyclerView, newState: Int) {
-                if (recyclerView.canScrollVertically(-1)) {
-                    b.refreshLayout.isEnabled = false
-                }
-                if (!recyclerView.canScrollVertically(-1) && newState == RecyclerView.SCROLL_STATE_IDLE) {
-                    b.refreshLayout.isEnabled = true
-                }
-            }
-        })
         App.db.noticeDao().getAll(profileId).observe(viewLifecycleOwner) { notices: List<NoticeFull>? ->
-            if (app == null || activity == null || b == null || !isAdded) return@observe
+            if (!isAdded) return@observe
             if (notices == null) {
                 b.noticesView.visibility = View.GONE
                 b.noticesNoData.visibility = View.VISIBLE

app/src/main/java/pl/szczodrzynski/edziennik/ui/captcha/RecaptchaDialog.kt

@@ -13,7 +13,7 @@ import kotlinx.coroutines.*
 import okhttp3.*
 import pl.szczodrzynski.edziennik.R
 import pl.szczodrzynski.edziennik.databinding.RecaptchaDialogBinding
-import pl.szczodrzynski.edziennik.ui.dialogs.base.BindingDialog
+import pl.szczodrzynski.edziennik.ui.base.dialog.BindingDialog
 import java.io.IOException
 import kotlin.coroutines.resume
 import kotlin.coroutines.suspendCoroutine

app/src/main/java/pl/szczodrzynski/edziennik/ui/captcha/RecaptchaPromptDialog.kt

@@ -11,7 +11,7 @@ import androidx.appcompat.app.AppCompatActivity
 import pl.szczodrzynski.edziennik.R
 import pl.szczodrzynski.edziennik.databinding.RecaptchaViewBinding
 import pl.szczodrzynski.edziennik.ext.onClick
-import pl.szczodrzynski.edziennik.ui.dialogs.base.BindingDialog
+import pl.szczodrzynski.edziennik.ui.base.dialog.BindingDialog
 
 class RecaptchaPromptDialog(
     activity: AppCompatActivity,

app/src/main/java/pl/szczodrzynski/edziennik/ui/debug/LabFragment.kt

@@ -4,73 +4,20 @@
 
 package pl.szczodrzynski.edziennik.ui.debug
 
-import android.os.Bundle
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
 import androidx.appcompat.app.AppCompatActivity
-import androidx.fragment.app.Fragment
 import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.Job
-import pl.szczodrzynski.edziennik.App
-import pl.szczodrzynski.edziennik.MainActivity
-import pl.szczodrzynski.edziennik.databinding.TemplateFragmentBinding
-import pl.szczodrzynski.edziennik.ext.addOnPageSelectedListener
-import pl.szczodrzynski.edziennik.ui.base.lazypager.FragmentLazyPagerAdapter
-import pl.szczodrzynski.edziennik.ui.login.LoginActivity
-import pl.szczodrzynski.edziennik.utils.SwipeRefreshLayoutNoTouch
-import kotlin.coroutines.CoroutineContext
+import pl.szczodrzynski.edziennik.databinding.BasePagerFragmentBinding
+import pl.szczodrzynski.edziennik.ui.base.fragment.PagerFragment
 
-class LabFragment : Fragment(), CoroutineScope {
-    companion object {
-        private const val TAG = "LabFragment"
-        var pageSelection = 0
-    }
+class LabFragment : PagerFragment<BasePagerFragmentBinding, AppCompatActivity>(
+    inflater = BasePagerFragmentBinding::inflate,
+), CoroutineScope {
 
-    private lateinit var app: App
-    private lateinit var activity: AppCompatActivity
-    private lateinit var b: TemplateFragmentBinding
-
-    private val job: Job = Job()
-    override val coroutineContext: CoroutineContext
-        get() = job + Dispatchers.Main
-
-    // local/private variables go here
-
-    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
-        activity = (getActivity() as AppCompatActivity?) ?: return null
-        context ?: return null
-        app = activity.application as App
-        b = TemplateFragmentBinding.inflate(inflater)
-        when (activity) {
-            is MainActivity -> b.refreshLayout.setParent((activity as MainActivity).swipeRefreshLayout)
-            is LoginActivity -> b.refreshLayout.setParent((activity as LoginActivity).swipeRefreshLayout)
-        }
-        b.refreshLayout.isEnabled = false
-        return b.root
-    }
-
-    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
-        if (!isAdded) return
-
-        val pagerAdapter = FragmentLazyPagerAdapter(
-            parentFragmentManager,
-                b.refreshLayout,
-                listOf(
-                        LabPageFragment() to "click me",
-                        LabProfileFragment() to "JSON",
-                        LabPlaygroundFragment() to "Playground",
-                )
-        )
-        b.viewPager.apply {
-            offscreenPageLimit = 1
-            adapter = pagerAdapter
-            currentItem = pageSelection
-            addOnPageSelectedListener {
-                pageSelection = it
-            }
-            b.tabLayout.setupWithViewPager(this)
-        }
-    }
+    override fun getTabLayout() = b.tabLayout
+    override fun getViewPager() = b.viewPager
+    override suspend fun onCreatePages() = listOf(
+        LabPageFragment() to "click me",
+        LabProfileFragment() to "JSON",
+        LabPlaygroundFragment() to "Playground",
+    )
 }

app/src/main/java/pl/szczodrzynski/edziennik/ui/debug/LabPageFragment.kt

@@ -6,9 +6,6 @@ package pl.szczodrzynski.edziennik.ui.debug
 
 import android.os.Bundle
 import android.os.Process
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
 import androidx.appcompat.app.AppCompatActivity
 import androidx.core.view.isVisible
 import androidx.core.widget.doAfterTextChanged
@@ -16,47 +13,38 @@ import androidx.sqlite.db.SimpleSQLiteQuery
 import com.chuckerteam.chucker.api.Chucker
 import com.chuckerteam.chucker.api.Chucker.SCREEN_HTTP
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
-import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.Job
 import kotlinx.coroutines.launch
-import pl.szczodrzynski.edziennik.*
-import pl.szczodrzynski.edziennik.data.config.Config
+import pl.szczodrzynski.edziennik.App
+import pl.szczodrzynski.edziennik.MainActivity
+import pl.szczodrzynski.edziennik.R
 import pl.szczodrzynski.edziennik.data.api.szkolny.interceptor.SignatureInterceptor
+import pl.szczodrzynski.edziennik.data.config.Config
 import pl.szczodrzynski.edziennik.data.db.entity.EventType.Companion.SOURCE_DEFAULT
 import pl.szczodrzynski.edziennik.databinding.LabFragmentBinding
-import pl.szczodrzynski.edziennik.ext.*
-import pl.szczodrzynski.edziennik.ui.base.lazypager.LazyFragment
+import pl.szczodrzynski.edziennik.ext.asBoldSpannable
+import pl.szczodrzynski.edziennik.ext.asColoredSpannable
+import pl.szczodrzynski.edziennik.ext.asItalicSpannable
+import pl.szczodrzynski.edziennik.ext.asUnderlineSpannable
+import pl.szczodrzynski.edziennik.ext.concat
+import pl.szczodrzynski.edziennik.ext.onChange
+import pl.szczodrzynski.edziennik.ext.onClick
+import pl.szczodrzynski.edziennik.ext.resolveAttr
+import pl.szczodrzynski.edziennik.ext.startCoroutineTimer
+import pl.szczodrzynski.edziennik.ext.takeValue
+import pl.szczodrzynski.edziennik.ui.base.fragment.BaseFragment
 import pl.szczodrzynski.edziennik.ui.dialogs.ProfileRemoveDialog
 import pl.szczodrzynski.edziennik.utils.TextInputDropDown
 import pl.szczodrzynski.fslogin.decode
-import kotlin.coroutines.CoroutineContext
 import kotlin.system.exitProcess
 
-class LabPageFragment : LazyFragment(), CoroutineScope {
-    companion object {
-        private const val TAG = "LabPageFragment"
-    }
+class LabPageFragment : BaseFragment<LabFragmentBinding, AppCompatActivity>(
+    inflater = LabFragmentBinding::inflate,
+) {
 
-    private lateinit var app: App
-    private lateinit var activity: AppCompatActivity
-    private lateinit var b: LabFragmentBinding
+    override fun getRefreshScrollingView() = b.scrollView
 
-    private val job: Job = Job()
-    override val coroutineContext: CoroutineContext
-        get() = job + Dispatchers.Main
-
-    // local/private variables go here
-
-    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
-        activity = (getActivity() as AppCompatActivity?) ?: return null
-        context ?: return null
-        app = activity.application as App
-        b = LabFragmentBinding.inflate(inflater)
-        return b.root
-    }
-
-    override fun onPageCreated(): Boolean {
+    override suspend fun onViewReady(savedInstanceState: Bundle?) {
         b.app = app
 
         if (app.profile.id == 0) {
@@ -222,7 +210,5 @@ class LabPageFragment : LazyFragment(), CoroutineScope {
                 }.concat("\n\n")
             b.cookies.text = text
         }
-
-        return true
     }
 }

app/src/main/java/pl/szczodrzynski/edziennik/ui/debug/LabPlaygroundFragment.kt

@@ -5,51 +5,21 @@
 package pl.szczodrzynski.edziennik.ui.debug
 
 import android.os.Bundle
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
 import androidx.appcompat.app.AppCompatActivity
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.Job
-import pl.szczodrzynski.edziennik.App
 import pl.szczodrzynski.edziennik.databinding.LabPlaygroundBinding
 import pl.szczodrzynski.edziennik.ext.asColoredSpannable
 import pl.szczodrzynski.edziennik.ext.concat
 import pl.szczodrzynski.edziennik.ext.resolveAttr
-import pl.szczodrzynski.edziennik.ui.base.lazypager.LazyFragment
+import pl.szczodrzynski.edziennik.ui.base.fragment.BaseFragment
 import timber.log.Timber
-import kotlin.coroutines.CoroutineContext
 
-class LabPlaygroundFragment : LazyFragment(), CoroutineScope {
-    companion object {
-        private const val TAG = "LabPlaygroundFragment"
-    }
+class LabPlaygroundFragment : BaseFragment<LabPlaygroundBinding, AppCompatActivity>(
+    inflater = LabPlaygroundBinding::inflate,
+) {
 
-    private lateinit var app: App
-    private lateinit var activity: AppCompatActivity
-    private lateinit var b: LabPlaygroundBinding
-
-    private val job: Job = Job()
-    override val coroutineContext: CoroutineContext
-        get() = job + Dispatchers.Main
-
-    // local/private variables go here
-
-    override fun onCreateView(
-        inflater: LayoutInflater,
-        container: ViewGroup?,
-        savedInstanceState: Bundle?,
-    ): View? {
-        activity = (getActivity() as AppCompatActivity?) ?: return null
-        context ?: return null
-        app = activity.application as App
-        b = LabPlaygroundBinding.inflate(inflater)
-        return b.root
-    }
-
-    override fun onPageCreated(): Boolean {
+    override fun getRefreshScrollingView() = b.root
 
+    override suspend fun onViewReady(savedInstanceState: Bundle?) {
         Timber.d("textColorSecondary: ${android.R.attr.textColorSecondary.resolveAttr(activity)}")
         b.spanTest1.text = listOf(
             "Text:", "android:textColorSecondary spannable (activity)".asColoredSpannable(
@@ -62,7 +32,5 @@ class LabPlaygroundFragment : LazyFragment(), CoroutineScope {
                 android.R.attr.textColorSecondary.resolveAttr(context)
             )
         ).concat(" ")
-
-        return true
     }
 }

app/src/main/java/pl/szczodrzynski/edziennik/ui/debug/LabProfileFragment.kt

@@ -5,9 +5,6 @@
 package pl.szczodrzynski.edziennik.ui.debug
 
 import android.os.Bundle
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
 import androidx.appcompat.app.AppCompatActivity
 import androidx.core.view.isVisible
 import androidx.recyclerview.widget.LinearLayoutManager
@@ -16,48 +13,30 @@ import com.google.gson.JsonArray
 import com.google.gson.JsonObject
 import com.google.gson.JsonParser
 import com.google.gson.JsonPrimitive
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.Job
-import pl.szczodrzynski.edziennik.App
 import pl.szczodrzynski.edziennik.MainActivity
 import pl.szczodrzynski.edziennik.R
 import pl.szczodrzynski.edziennik.data.api.models.ApiError
 import pl.szczodrzynski.edziennik.databinding.TemplateListPageFragmentBinding
 import pl.szczodrzynski.edziennik.ext.*
-import pl.szczodrzynski.edziennik.ui.base.lazypager.LazyFragment
+import pl.szczodrzynski.edziennik.ui.base.fragment.BaseFragment
 import pl.szczodrzynski.edziennik.ui.login.LoginActivity
 import pl.szczodrzynski.edziennik.utils.SimpleDividerItemDecoration
-import kotlin.coroutines.CoroutineContext
 
-class LabProfileFragment : LazyFragment(), CoroutineScope {
+class LabProfileFragment : BaseFragment<TemplateListPageFragmentBinding, AppCompatActivity>(
+    inflater = TemplateListPageFragmentBinding::inflate,
+) {
     companion object {
         private const val TAG = "LabProfileFragment"
     }
 
-    private lateinit var app: App
-    private lateinit var activity: AppCompatActivity
-    private lateinit var b: TemplateListPageFragmentBinding
+    override fun getRefreshScrollingView() = b.list
 
-    private val job: Job = Job()
-    override val coroutineContext: CoroutineContext
-        get() = job + Dispatchers.Main
-
-    // local/private variables go here
     private lateinit var adapter: LabJsonAdapter
     private val loginStore by lazy {
         app.db.loginStoreDao().getByIdNow(app.profile.loginStoreId)
     }
 
-    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
-        activity = (getActivity() as AppCompatActivity?) ?: return null
-        context ?: return null
-        app = activity.application as App
-        b = TemplateListPageFragmentBinding.inflate(inflater)
-        return b.root
-    }
-
-    override fun onPageCreated(): Boolean { startCoroutineTimer(100L) {
+    override suspend fun onViewReady(savedInstanceState: Bundle?) {
         adapter = LabJsonAdapter(activity, onJsonElementClick = { item ->
             try {
                 var parent: Any = Unit
@@ -117,7 +96,12 @@ class LabProfileFragment : LazyFragment(), CoroutineScope {
                                 is JsonArray -> {
 
                                 }
-                                is HashMap<*, *> -> app.config[objName] = input
+                                is HashMap<*, *> -> {
+                                    if ("(profile)" in item.key)
+                                        app.profile.config[objName] = input
+                                    else
+                                        app.config[objName] = input
+                                }
                                 else -> {
                                     val field = parent::class.java.getDeclaredField(objName)
                                     field.isAccessible = true
@@ -165,15 +149,13 @@ class LabProfileFragment : LazyFragment(), CoroutineScope {
             setHasFixedSize(true)
             layoutManager = LinearLayoutManager(context)
             addItemDecoration(SimpleDividerItemDecoration(context))
-            addOnScrollListener(onScrollListener)
         }
 
         // show/hide relevant views
         b.progressBar.isVisible = false
         b.list.isVisible = true
         b.noData.isVisible = false
-
-    }; return true }
+    }
 
     private fun showJson() {
         val json = JsonObject().also { json ->

app/src/main/java/pl/szczodrzynski/edziennik/ui/dialogs/BellSyncDialog.kt

@@ -13,7 +13,7 @@ import pl.szczodrzynski.edziennik.R
 import pl.szczodrzynski.edziennik.databinding.DialogBellSyncBinding
 import pl.szczodrzynski.edziennik.ext.resolveDrawable
 import pl.szczodrzynski.edziennik.ext.startCoroutineTimer
-import pl.szczodrzynski.edziennik.ui.dialogs.base.BindingDialog
+import pl.szczodrzynski.edziennik.ui.base.dialog.BindingDialog
 import pl.szczodrzynski.edziennik.utils.models.Time
 
 class BellSyncDialog(

app/src/main/java/pl/szczodrzynski/edziennik/ui/dialogs/BellSyncTimeChooseDialog.kt

@@ -13,7 +13,7 @@ import pl.szczodrzynski.edziennik.MainActivity
 import pl.szczodrzynski.edziennik.R
 import pl.szczodrzynski.edziennik.data.db.entity.Lesson
 import pl.szczodrzynski.edziennik.databinding.DialogBellSyncTimeChooseBinding
-import pl.szczodrzynski.edziennik.ui.dialogs.base.BindingDialog
+import pl.szczodrzynski.edziennik.ui.base.dialog.BindingDialog
 import pl.szczodrzynski.edziennik.utils.TextInputDropDown
 import pl.szczodrzynski.edziennik.utils.models.Date
 import pl.szczodrzynski.edziennik.utils.models.Time

app/src/main/java/pl/szczodrzynski/edziennik/ui/dialogs/ChangelogDialog.kt

@@ -9,7 +9,7 @@ import android.widget.TextView
 import androidx.appcompat.app.AppCompatActivity
 import pl.szczodrzynski.edziennik.R
 import pl.szczodrzynski.edziennik.ext.dp
-import pl.szczodrzynski.edziennik.ui.dialogs.base.ViewDialog
+import pl.szczodrzynski.edziennik.ui.base.dialog.ViewDialog
 import pl.szczodrzynski.edziennik.utils.BetterLinkMovementMethod
 import pl.szczodrzynski.edziennik.utils.html.BetterHtml
 

app/src/main/java/pl/szczodrzynski/edziennik/ui/dialogs/ErrorDetailsDialog.kt

@@ -2,7 +2,7 @@
  * Copyright (c) Kuba Szczodrzyński 2020-2-16.
  */
 
-package pl.szczodrzynski.edziennik.ui.error
+package pl.szczodrzynski.edziennik.ui.dialogs
 
 import android.widget.Toast
 import androidx.appcompat.app.AppCompatActivity
@@ -13,7 +13,7 @@ import pl.szczodrzynski.edziennik.R
 import pl.szczodrzynski.edziennik.data.api.models.ApiError
 import pl.szczodrzynski.edziennik.data.api.szkolny.SzkolnyApi
 import pl.szczodrzynski.edziennik.ext.*
-import pl.szczodrzynski.edziennik.ui.dialogs.base.BaseDialog
+import pl.szczodrzynski.edziennik.ui.base.dialog.BaseDialog
 
 class ErrorDetailsDialog(
     activity: AppCompatActivity,

app/src/main/java/pl/szczodrzynski/edziennik/ui/dialogs/ProfileRemoveDialog.kt

@@ -10,7 +10,7 @@ import kotlinx.coroutines.*
 import pl.szczodrzynski.edziennik.App
 import pl.szczodrzynski.edziennik.MainActivity
 import pl.szczodrzynski.edziennik.R
-import pl.szczodrzynski.edziennik.ui.dialogs.base.BaseDialog
+import pl.szczodrzynski.edziennik.ui.base.dialog.BaseDialog
 
 class ProfileRemoveDialog(
     activity: AppCompatActivity,

app/src/main/java/pl/szczodrzynski/edziennik/ui/dialogs/QrScannerDialog.kt

@@ -8,7 +8,7 @@ import androidx.appcompat.app.AppCompatActivity
 import me.dm7.barcodescanner.zxing.ZXingScannerView
 import pl.szczodrzynski.edziennik.R
 import pl.szczodrzynski.edziennik.ext.dp
-import pl.szczodrzynski.edziennik.ui.dialogs.base.ViewDialog
+import pl.szczodrzynski.edziennik.ui.base.dialog.ViewDialog
 
 class QrScannerDialog(
     activity: AppCompatActivity,

app/src/main/java/pl/szczodrzynski/edziennik/ui/dialogs/StyledTextDialog.kt

@@ -13,7 +13,7 @@ import pl.szczodrzynski.edziennik.App
 import pl.szczodrzynski.edziennik.R
 import pl.szczodrzynski.edziennik.databinding.StyledTextDialogBinding
 import pl.szczodrzynski.edziennik.ext.isNightMode
-import pl.szczodrzynski.edziennik.ui.dialogs.base.BindingDialog
+import pl.szczodrzynski.edziennik.ui.base.dialog.BindingDialog
 import pl.szczodrzynski.edziennik.utils.DefaultTextStyles
 import pl.szczodrzynski.edziennik.core.manager.TextStylingManager.HtmlMode.SIMPLE
 import pl.szczodrzynski.edziennik.core.manager.TextStylingManager.StylingConfig

app/src/main/java/pl/szczodrzynski/edziennik/ui/dialogs/settings/AgendaConfigDialog.kt

@@ -10,7 +10,7 @@ import pl.szczodrzynski.edziennik.R
 import pl.szczodrzynski.edziennik.data.db.entity.Profile
 import pl.szczodrzynski.edziennik.databinding.DialogConfigAgendaBinding
 import pl.szczodrzynski.edziennik.ext.onChange
-import pl.szczodrzynski.edziennik.ui.dialogs.base.ConfigDialog
+import pl.szczodrzynski.edziennik.ui.base.dialog.ConfigDialog
 
 class AgendaConfigDialog(
     activity: AppCompatActivity,

app/src/main/java/pl/szczodrzynski/edziennik/ui/dialogs/settings/AppLanguageDialog.kt

@@ -6,7 +6,7 @@ package pl.szczodrzynski.edziennik.ui.dialogs.settings
 
 import androidx.appcompat.app.AppCompatActivity
 import pl.szczodrzynski.edziennik.R
-import pl.szczodrzynski.edziennik.ui.dialogs.base.BaseDialog
+import pl.szczodrzynski.edziennik.ui.base.dialog.BaseDialog
 
 class AppLanguageDialog(
     activity: AppCompatActivity,

app/src/main/java/pl/szczodrzynski/edziennik/ui/dialogs/settings/AttendanceConfigDialog.kt

@@ -9,7 +9,7 @@ import androidx.appcompat.app.AppCompatActivity
 import pl.szczodrzynski.edziennik.R
 import pl.szczodrzynski.edziennik.databinding.AttendanceConfigDialogBinding
 import pl.szczodrzynski.edziennik.ext.onChange
-import pl.szczodrzynski.edziennik.ui.dialogs.base.ConfigDialog
+import pl.szczodrzynski.edziennik.ui.base.dialog.ConfigDialog
 
 class AttendanceConfigDialog(
     activity: AppCompatActivity,

app/src/main/java/pl/szczodrzynski/edziennik/ui/dialogs/settings/BellSyncConfigDialog.kt

@@ -10,7 +10,7 @@ import androidx.appcompat.app.AppCompatActivity
 import androidx.core.widget.addTextChangedListener
 import pl.szczodrzynski.edziennik.R
 import pl.szczodrzynski.edziennik.databinding.DialogEditTextBinding
-import pl.szczodrzynski.edziennik.ui.dialogs.base.BindingDialog
+import pl.szczodrzynski.edziennik.ui.base.dialog.BindingDialog
 import pl.szczodrzynski.edziennik.utils.models.Time
 
 class BellSyncConfigDialog(

app/src/main/java/pl/szczodrzynski/edziennik/ui/dialogs/settings/GradesConfigDialog.kt

@@ -16,7 +16,7 @@ import pl.szczodrzynski.edziennik.ext.join
 import pl.szczodrzynski.edziennik.ext.onChange
 import pl.szczodrzynski.edziennik.ext.onClick
 import pl.szczodrzynski.edziennik.ext.setOnSelectedListener
-import pl.szczodrzynski.edziennik.ui.dialogs.base.ConfigDialog
+import pl.szczodrzynski.edziennik.ui.base.dialog.ConfigDialog
 import pl.szczodrzynski.edziennik.core.manager.GradesManager.Companion.COLOR_MODE_DEFAULT
 import pl.szczodrzynski.edziennik.core.manager.GradesManager.Companion.COLOR_MODE_WEIGHTED
 import pl.szczodrzynski.edziennik.core.manager.GradesManager.Companion.ORDER_BY_DATE_DESC

app/src/main/java/pl/szczodrzynski/edziennik/ui/dialogs/settings/MessagesConfigDialog.kt

@@ -8,7 +8,7 @@ import android.view.LayoutInflater
 import androidx.appcompat.app.AppCompatActivity
 import pl.szczodrzynski.edziennik.R
 import pl.szczodrzynski.edziennik.databinding.MessagesConfigDialogBinding
-import pl.szczodrzynski.edziennik.ui.dialogs.base.ConfigDialog
+import pl.szczodrzynski.edziennik.ui.base.dialog.ConfigDialog
 
 class MessagesConfigDialog(
     activity: AppCompatActivity,

app/src/main/java/pl/szczodrzynski/edziennik/ui/dialogs/settings/MiniMenuConfigDialog.kt

@@ -11,7 +11,7 @@ import pl.szczodrzynski.edziennik.R
 import pl.szczodrzynski.edziennik.ext.resolveString
 import pl.szczodrzynski.edziennik.data.enums.NavTarget
 import pl.szczodrzynski.edziennik.data.enums.NavTargetLocation
-import pl.szczodrzynski.edziennik.ui.dialogs.base.BaseDialog
+import pl.szczodrzynski.edziennik.ui.base.dialog.BaseDialog
 
 class MiniMenuConfigDialog(
     activity: AppCompatActivity,

app/src/main/java/pl/szczodrzynski/edziennik/ui/dialogs/settings/NotificationFilterDialog.kt

@@ -9,7 +9,7 @@ import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import pl.szczodrzynski.edziennik.R
 import pl.szczodrzynski.edziennik.data.enums.NotificationType
 import pl.szczodrzynski.edziennik.ext.resolveString
-import pl.szczodrzynski.edziennik.ui.dialogs.base.BaseDialog
+import pl.szczodrzynski.edziennik.ui.base.dialog.BaseDialog
 
 class NotificationFilterDialog(
     activity: AppCompatActivity,

app/src/main/java/pl/szczodrzynski/edziennik/ui/dialogs/settings/ProfileConfigDialog.kt

@@ -16,7 +16,7 @@ import pl.szczodrzynski.edziennik.ext.dp
 import pl.szczodrzynski.edziennik.ext.onChange
 import pl.szczodrzynski.edziennik.ext.onClick
 import pl.szczodrzynski.edziennik.ui.dialogs.ProfileRemoveDialog
-import pl.szczodrzynski.edziennik.ui.dialogs.base.BindingDialog
+import pl.szczodrzynski.edziennik.ui.base.dialog.BindingDialog
 
 class ProfileConfigDialog(
     activity: MainActivity,

app/src/main/java/pl/szczodrzynski/edziennik/ui/dialogs/settings/SyncIntervalDialog.kt

@@ -9,7 +9,7 @@ import pl.szczodrzynski.edziennik.R
 import pl.szczodrzynski.edziennik.ext.HOUR
 import pl.szczodrzynski.edziennik.ext.MINUTE
 import pl.szczodrzynski.edziennik.ext.getSyncInterval
-import pl.szczodrzynski.edziennik.ui.dialogs.base.BaseDialog
+import pl.szczodrzynski.edziennik.ui.base.dialog.BaseDialog
 
 class SyncIntervalDialog(
     activity: AppCompatActivity,

app/src/main/java/pl/szczodrzynski/edziennik/ui/dialogs/settings/ThemeChooserDialog.kt

@@ -7,7 +7,7 @@ package pl.szczodrzynski.edziennik.ui.dialogs.settings
 import androidx.appcompat.app.AppCompatActivity
 import pl.szczodrzynski.edziennik.R
 import pl.szczodrzynski.edziennik.data.enums.Theme
-import pl.szczodrzynski.edziennik.ui.dialogs.base.BaseDialog
+import pl.szczodrzynski.edziennik.ui.base.dialog.BaseDialog
 
 class ThemeChooserDialog(
     activity: AppCompatActivity,

app/src/main/java/pl/szczodrzynski/edziennik/ui/dialogs/settings/TimetableConfigDialog.kt

@@ -9,7 +9,7 @@ import androidx.appcompat.app.AppCompatActivity
 import pl.szczodrzynski.edziennik.R
 import pl.szczodrzynski.edziennik.databinding.TimetableConfigDialogBinding
 import pl.szczodrzynski.edziennik.ext.Intent
-import pl.szczodrzynski.edziennik.ui.dialogs.base.ConfigDialog
+import pl.szczodrzynski.edziennik.ui.base.dialog.ConfigDialog
 import pl.szczodrzynski.edziennik.ui.timetable.TimetableFragment
 
 class TimetableConfigDialog(

app/src/main/java/pl/szczodrzynski/edziennik/ui/dialogs/sync/RegisterUnavailableDialog.kt

@@ -13,7 +13,7 @@ import pl.szczodrzynski.edziennik.R
 import pl.szczodrzynski.edziennik.data.api.szkolny.response.RegisterAvailabilityStatus
 import pl.szczodrzynski.edziennik.databinding.DialogRegisterUnavailableBinding
 import pl.szczodrzynski.edziennik.ext.onClick
-import pl.szczodrzynski.edziennik.ui.dialogs.base.BindingDialog
+import pl.szczodrzynski.edziennik.ui.base.dialog.BindingDialog
 import pl.szczodrzynski.edziennik.utils.Utils
 
 class RegisterUnavailableDialog(

app/src/main/java/pl/szczodrzynski/edziennik/ui/dialogs/sync/ServerMessageDialog.kt

@@ -6,7 +6,7 @@ package pl.szczodrzynski.edziennik.ui.dialogs.sync
 
 import androidx.appcompat.app.AppCompatActivity
 import pl.szczodrzynski.edziennik.R
-import pl.szczodrzynski.edziennik.ui.dialogs.base.BaseDialog
+import pl.szczodrzynski.edziennik.ui.base.dialog.BaseDialog
 
 class ServerMessageDialog(
     activity: AppCompatActivity,

app/src/main/java/pl/szczodrzynski/edziennik/ui/dialogs/sync/SyncViewListDialog.kt

@@ -13,7 +13,7 @@ import pl.szczodrzynski.edziennik.data.enums.FeatureType
 import pl.szczodrzynski.edziennik.ext.hasFeature
 import pl.szczodrzynski.edziennik.ext.resolveString
 import pl.szczodrzynski.edziennik.data.enums.NavTarget
-import pl.szczodrzynski.edziennik.ui.dialogs.base.BaseDialog
+import pl.szczodrzynski.edziennik.ui.base.dialog.BaseDialog
 import pl.szczodrzynski.edziennik.ui.messages.list.MessagesFragment
 
 class SyncViewListDialog(

app/src/main/java/pl/szczodrzynski/edziennik/ui/dialogs/sync/UpdateAvailableDialog.kt

@@ -10,7 +10,7 @@ import pl.szczodrzynski.edziennik.R
 import pl.szczodrzynski.edziennik.data.api.szkolny.response.Update
 import pl.szczodrzynski.edziennik.ext.Intent
 import pl.szczodrzynski.edziennik.sync.UpdateDownloaderService
-import pl.szczodrzynski.edziennik.ui.dialogs.base.BaseDialog
+import pl.szczodrzynski.edziennik.ui.base.dialog.BaseDialog
 import pl.szczodrzynski.edziennik.utils.Utils
 import pl.szczodrzynski.edziennik.utils.html.BetterHtml
 

app/src/main/java/pl/szczodrzynski/edziennik/ui/dialogs/sync/UpdateProgressDialog.kt

@@ -19,7 +19,7 @@ import pl.szczodrzynski.edziennik.databinding.UpdateProgressDialogBinding
 import pl.szczodrzynski.edziennik.ext.getInt
 import pl.szczodrzynski.edziennik.ext.startCoroutineTimer
 import pl.szczodrzynski.edziennik.core.work.UpdateStateEvent
-import pl.szczodrzynski.edziennik.ui.dialogs.base.BindingDialog
+import pl.szczodrzynski.edziennik.ui.base.dialog.BindingDialog
 import pl.szczodrzynski.edziennik.utils.Utils
 
 class UpdateProgressDialog(

app/src/main/java/pl/szczodrzynski/edziennik/ui/error/ErrorDialog.kt

@@ -1,46 +0,0 @@
-/*
- * Copyright (c) Kuba Szczodrzyński 2019-11-13.
- */
-
-package pl.szczodrzynski.edziennik.ui.error
-
-import android.util.Log
-import androidx.appcompat.app.AlertDialog
-import androidx.appcompat.app.AppCompatActivity
-import com.google.android.material.dialog.MaterialAlertDialogBuilder
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.Job
-import pl.szczodrzynski.edziennik.App
-import pl.szczodrzynski.edziennik.R
-import pl.szczodrzynski.edziennik.databinding.DialogLessonDetailsBinding
-import kotlin.coroutines.CoroutineContext
-
-class ErrorDialog(
-        val activity: AppCompatActivity,
-        val exception: Exception
-) : CoroutineScope {
-    companion object {
-        private const val TAG = "ErrorDialog"
-    }
-
-    private lateinit var job: Job
-    override val coroutineContext: CoroutineContext
-        get() = job + Dispatchers.Main
-
-    private val app by lazy { activity.application as App }
-    private lateinit var b: DialogLessonDetailsBinding
-    private lateinit var dialog: AlertDialog
-
-    init { run {
-        job = Job()
-
-        dialog = MaterialAlertDialogBuilder(activity)
-                .setTitle(R.string.error_occured)
-                .setMessage(exception.message + "\n" + Log.getStackTraceString(exception))
-                .setPositiveButton(R.string.ok) { _, _ ->
-                    dialog.dismiss()
-                }
-                .show()
-    }}
-}

app/src/main/java/pl/szczodrzynski/edziennik/ui/event/EventDetailsDialog.kt

@@ -28,7 +28,7 @@ import pl.szczodrzynski.edziennik.data.db.full.EventFull
 import pl.szczodrzynski.edziennik.databinding.DialogEventDetailsBinding
 import pl.szczodrzynski.edziennik.ext.*
 import pl.szczodrzynski.edziennik.data.enums.NavTarget
-import pl.szczodrzynski.edziennik.ui.dialogs.base.BindingDialog
+import pl.szczodrzynski.edziennik.ui.base.dialog.BindingDialog
 import pl.szczodrzynski.edziennik.ui.notes.setupNotesButton
 import pl.szczodrzynski.edziennik.ui.timetable.TimetableFragment
 import pl.szczodrzynski.edziennik.utils.BetterLink

app/src/main/java/pl/szczodrzynski/edziennik/ui/event/EventManualDialog.kt

@@ -44,9 +44,9 @@ import pl.szczodrzynski.edziennik.ext.onClick
 import pl.szczodrzynski.edziennik.ext.removeFromParent
 import pl.szczodrzynski.edziennik.ext.setText
 import pl.szczodrzynski.edziennik.ext.setTintColor
-import pl.szczodrzynski.edziennik.ui.dialogs.base.BindingDialog
+import pl.szczodrzynski.edziennik.ui.base.dialog.BindingDialog
 import pl.szczodrzynski.edziennik.ui.dialogs.settings.RegistrationConfigDialog
-import pl.szczodrzynski.edziennik.ui.views.TimeDropdown.Companion.DISPLAY_LESSONS
+import pl.szczodrzynski.edziennik.ui.base.views.TimeDropdown.Companion.DISPLAY_LESSONS
 import pl.szczodrzynski.edziennik.utils.Anim
 import pl.szczodrzynski.edziennik.utils.html.BetterHtml
 import pl.szczodrzynski.edziennik.core.manager.TextStylingManager.HtmlMode.SIMPLE

app/src/main/java/pl/szczodrzynski/edziennik/ui/feedback/FeedbackFragment.kt

@@ -6,20 +6,18 @@ import android.graphics.BitmapFactory
 import android.graphics.Canvas
 import android.graphics.Color
 import android.os.Bundle
-import android.util.Log
-import android.view.LayoutInflater
 import android.view.View
-import android.view.ViewGroup
 import android.widget.PopupMenu
 import android.widget.Toast
 import androidx.appcompat.app.AppCompatActivity
-import androidx.fragment.app.Fragment
 import coil.imageLoader
 import coil.request.ImageRequest
 import com.github.bassaer.chatmessageview.model.IChatUser
 import com.github.bassaer.chatmessageview.model.Message
 import com.github.bassaer.chatmessageview.view.ChatView
-import kotlinx.coroutines.*
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
 import org.greenrobot.eventbus.EventBus
 import org.greenrobot.eventbus.Subscribe
 import org.greenrobot.eventbus.ThreadMode
@@ -31,25 +29,16 @@ import pl.szczodrzynski.edziennik.data.db.entity.FeedbackMessage
 import pl.szczodrzynski.edziennik.databinding.FragmentFeedbackBinding
 import pl.szczodrzynski.edziennik.ext.crc16
 import pl.szczodrzynski.edziennik.ext.onClick
+import pl.szczodrzynski.edziennik.ui.base.fragment.BaseFragment
 import pl.szczodrzynski.edziennik.utils.Utils
 import pl.szczodrzynski.edziennik.utils.Utils.openUrl
 import timber.log.Timber
-import java.util.*
+import java.util.Calendar
 import kotlin.collections.set
-import kotlin.coroutines.CoroutineContext
 
-class FeedbackFragment : Fragment(), CoroutineScope {
-    companion object {
-        private const val TAG = "FeedbackFragment"
-    }
-
-    private lateinit var app: App
-    private lateinit var activity: AppCompatActivity
-    private lateinit var b: FragmentFeedbackBinding
-
-    private val job: Job = Job()
-    override val coroutineContext: CoroutineContext
-        get() = job + Dispatchers.Main
+class FeedbackFragment : BaseFragment<FragmentFeedbackBinding, AppCompatActivity>(
+    inflater = FragmentFeedbackBinding::inflate,
+) {
 
     private val chatView: ChatView by lazy { b.chatView }
     private val api by lazy { SzkolnyApi(app) }
@@ -58,18 +47,6 @@ class FeedbackFragment : Fragment(), CoroutineScope {
 
     private var receiver: BroadcastReceiver? = null
 
-    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
-        activity = (getActivity() as AppCompatActivity?) ?: return null
-        if (context == null)
-            return null
-        app = activity.application as App
-        // activity, context and profile is valid
-        b = FragmentFeedbackBinding.inflate(inflater)
-        // prevent doubled received messages on enter
-        EventBus.getDefault().removeStickyEvent(FeedbackMessageEvent::class.java)
-        return b.root
-    }
-
     @Subscribe(threadMode = ThreadMode.MAIN, sticky = true)
     fun onFeedbackMessageEvent(event: FeedbackMessageEvent) {
         EventBus.getDefault().removeStickyEvent(event)
@@ -143,10 +120,8 @@ class FeedbackFragment : Fragment(), CoroutineScope {
         }
     }
 
-    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
-        // TODO check if app, activity, b can be null
-        if (!isAdded)
-            return
+    override suspend fun onViewReady(savedInstanceState: Bundle?) {
+        EventBus.getDefault().removeStickyEvent(FeedbackMessageEvent::class.java)
 
         b.faqText.setOnClickListener { openFaq() }
         b.faqButton.setOnClickListener { openFaq() }
@@ -163,46 +138,44 @@ class FeedbackFragment : Fragment(), CoroutineScope {
             setMessageMarginBottom(5)
         }
 
-        launch {
-            val messages = withContext(Dispatchers.Default) {
-                val messages = app.db.feedbackMessageDao().allNow
-                isDev = App.devMode && messages.any { it.deviceId != null }
-                messages
-            }
+        val messages = withContext(Dispatchers.IO) {
+            val messages = app.db.feedbackMessageDao().allNow
+            isDev = App.devMode && messages.any { it.deviceId != null }
+            messages
+        }
 
-            b.targetDeviceLayout.visibility = if (isDev) View.VISIBLE else View.GONE
-            b.targetDeviceDropDown.onClick {
-                launchDeviceSelection()
-            }
+        b.targetDeviceLayout.visibility = if (isDev) View.VISIBLE else View.GONE
+        b.targetDeviceDropDown.onClick {
+            launchDeviceSelection()
+        }
 
-            if (isDev) {
-                messages.firstOrNull { it.received && it.devId == null }?.let {
-                    currentDeviceId = it.deviceId
+        if (isDev) {
+            messages.firstOrNull { it.received && it.devId == null }?.let {
+                currentDeviceId = it.deviceId
+                b.targetDeviceDropDown.setText("${it.senderName} (${it.deviceId}) - ${it.deviceName}")
+            }
+            // handle notification intent
+            arguments?.getString("feedbackMessageDeviceId")?.let { deviceId ->
+                messages.firstOrNull { it.received && it.deviceId == deviceId && it.devId == null }?.let {
+                    currentDeviceId = deviceId
                     b.targetDeviceDropDown.setText("${it.senderName} (${it.deviceId}) - ${it.deviceName}")
                 }
-                // handle notification intent
-                arguments?.getString("feedbackMessageDeviceId")?.let { deviceId ->
-                    messages.firstOrNull { it.received && it.deviceId == deviceId && it.devId == null }?.let {
-                        currentDeviceId = deviceId
-                        b.targetDeviceDropDown.setText("${it.senderName} (${it.deviceId}) - ${it.deviceName}")
-                    }
-                }
-                b.chatLayout.visibility = View.VISIBLE
-                b.inputLayout.visibility = View.GONE
-            }
-            else if (messages.isEmpty()) {
-                b.chatLayout.visibility = View.GONE
-                b.inputLayout.visibility = View.VISIBLE
             }
+            b.chatLayout.visibility = View.VISIBLE
+            b.inputLayout.visibility = View.GONE
+        }
+        else if (messages.isEmpty()) {
+            b.chatLayout.visibility = View.GONE
+            b.inputLayout.visibility = View.VISIBLE
+        }
 
-            loadMessages(messages)
+        loadMessages(messages)
 
-            b.sendButton.onClick {
-                send(b.textInput.text.toString())
-            }
-            chatView.setOnClickSendButtonListener(View.OnClickListener {
-                send(chatView.inputText)
-            })
+        b.sendButton.onClick {
+            send(b.textInput.text.toString())
+        }
+        chatView.setOnClickSendButtonListener {
+            send(chatView.inputText)
         }
     }
 
@@ -275,14 +248,4 @@ class FeedbackFragment : Fragment(), CoroutineScope {
     private fun openFaq() {
         openUrl(activity, "http://szkolny.eu/pomoc/")
     }
-
-    override fun onResume() {
-        super.onResume()
-        EventBus.getDefault().register(this)
-    }
-
-    override fun onPause() {
-        super.onPause()
-        EventBus.getDefault().unregister(this)
-    }
 }

app/src/main/java/pl/szczodrzynski/edziennik/ui/grades/GradeDetailsDialog.kt

@@ -13,7 +13,7 @@ import pl.szczodrzynski.edziennik.data.db.full.GradeFull
 import pl.szczodrzynski.edziennik.databinding.DialogGradeDetailsBinding
 import pl.szczodrzynski.edziennik.ext.onClick
 import pl.szczodrzynski.edziennik.ext.setTintColor
-import pl.szczodrzynski.edziennik.ui.dialogs.base.BindingDialog
+import pl.szczodrzynski.edziennik.ui.base.dialog.BindingDialog
 import pl.szczodrzynski.edziennik.ui.dialogs.settings.GradesConfigDialog
 import pl.szczodrzynski.edziennik.ui.notes.setupNotesButton
 import pl.szczodrzynski.edziennik.utils.BetterLink

app/src/main/java/pl/szczodrzynski/edziennik/ui/grades/GradesListFragment.kt

@@ -4,50 +4,51 @@
 
 package pl.szczodrzynski.edziennik.ui.grades
 
-import android.os.AsyncTask
 import android.os.Bundle
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
-import android.widget.Toast
 import androidx.core.view.isVisible
-import androidx.fragment.app.Fragment
 import androidx.lifecycle.Observer
 import androidx.recyclerview.widget.LinearLayoutManager
 import com.mikepenz.iconics.typeface.library.community.material.CommunityMaterial
-import kotlinx.coroutines.*
-import pl.szczodrzynski.edziennik.*
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
+import pl.szczodrzynski.edziennik.App
+import pl.szczodrzynski.edziennik.MainActivity
+import pl.szczodrzynski.edziennik.R
+import pl.szczodrzynski.edziennik.core.manager.GradesManager
 import pl.szczodrzynski.edziennik.data.db.entity.Grade
-import pl.szczodrzynski.edziennik.data.enums.MetadataType
 import pl.szczodrzynski.edziennik.data.db.full.GradeFull
-import pl.szczodrzynski.edziennik.databinding.GradesListFragmentBinding
-import pl.szczodrzynski.edziennik.ext.*
+import pl.szczodrzynski.edziennik.data.enums.MetadataType
 import pl.szczodrzynski.edziennik.data.enums.NavTarget
+import pl.szczodrzynski.edziennik.databinding.GradesListFragmentBinding
+import pl.szczodrzynski.edziennik.ext.Bundle
+import pl.szczodrzynski.edziennik.ext.averageOrNull
+import pl.szczodrzynski.edziennik.ext.isNotNullNorEmpty
+import pl.szczodrzynski.edziennik.ext.startCoroutineTimer
+import pl.szczodrzynski.edziennik.ui.base.fragment.BaseFragment
 import pl.szczodrzynski.edziennik.ui.dialogs.settings.GradesConfigDialog
 import pl.szczodrzynski.edziennik.ui.grades.models.GradesAverages
 import pl.szczodrzynski.edziennik.ui.grades.models.GradesSemester
 import pl.szczodrzynski.edziennik.ui.grades.models.GradesStats
 import pl.szczodrzynski.edziennik.ui.grades.models.GradesSubject
-import pl.szczodrzynski.edziennik.core.manager.GradesManager
 import pl.szczodrzynski.navlib.bottomsheet.items.BottomSheetPrimaryItem
-import pl.szczodrzynski.navlib.bottomsheet.items.BottomSheetSeparatorItem
-import kotlin.coroutines.CoroutineContext
 import kotlin.math.max
 
-class GradesListFragment : Fragment(), CoroutineScope {
-    companion object {
-        private const val TAG = "GradesFragment"
-    }
+class GradesListFragment : BaseFragment<GradesListFragmentBinding, MainActivity>(
+    inflater = GradesListFragmentBinding::inflate,
+) {
 
-    private lateinit var app: App
-    private lateinit var activity: MainActivity
-    private lateinit var b: GradesListFragmentBinding
+    override fun getMarkAsReadType() = MetadataType.GRADE
+    override fun getBottomSheetItems() = listOf(
+        BottomSheetPrimaryItem(true)
+            .withTitle(R.string.menu_grades_config)
+            .withIcon(CommunityMaterial.Icon.cmd_cog_outline)
+            .withOnClickListener {
+                activity.bottomSheet.close()
+                GradesConfigDialog(activity, true, null, null).show()
+            },
+    )
 
-    private val job: Job = Job()
-    override val coroutineContext: CoroutineContext
-        get() = job + Dispatchers.Main
-
-    // local/private variables go here
     private val manager
         get() = app.gradesManager
     private val dontCountEnabled
@@ -56,18 +57,7 @@ class GradesListFragment : Fragment(), CoroutineScope {
         get() = manager.dontCountGrades
     private var expandSubjectId = 0L
 
-    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
-        activity = (getActivity() as MainActivity?) ?: return null
-        context ?: return null
-        app = activity.application as App
-        b = GradesListFragmentBinding.inflate(inflater)
-        b.refreshLayout.setParent(activity.swipeRefreshLayout)
-        return b.root
-    }
-
-    override fun onViewCreated(view: View, savedInstanceState: Bundle?) { startCoroutineTimer(100L) {
-        if (!isAdded) return@startCoroutineTimer
-
+    override suspend fun onViewReady(savedInstanceState: Bundle?) {
         expandSubjectId = arguments?.getLong("gradesSubjectId") ?: 0L
 
         val adapter = GradesAdapter(activity)
@@ -92,7 +82,6 @@ class GradesListFragment : Fragment(), CoroutineScope {
                 b.list.apply {
                     setHasFixedSize(true)
                     layoutManager = LinearLayoutManager(context)
-                    addOnScrollListener(b.refreshLayout.onScrollListener)
                 }
             }
             adapter.notifyDataSetChanged()
@@ -121,7 +110,7 @@ class GradesListFragment : Fragment(), CoroutineScope {
             val otherSemester = subject.semesters.firstOrNull { it != semester }
             var gradeSumOtherSemester = otherSemester?.averages?.normalWeightedSum
             var gradeCountOtherSemester = otherSemester?.averages?.normalWeightedCount
-            if (gradeSumOtherSemester ?: 0f == 0f || gradeCountOtherSemester ?: 0f == 0f) {
+            if ((gradeSumOtherSemester ?: 0f) == 0f || (gradeCountOtherSemester ?: 0f) == 0f) {
                 gradeSumOtherSemester = otherSemester?.averages?.normalSum
                 gradeCountOtherSemester = otherSemester?.averages?.normalCount?.toFloat()
             }
@@ -137,27 +126,7 @@ class GradesListFragment : Fragment(), CoroutineScope {
                     "finalOtherSemester" to otherSemester?.finalGrade?.value
             ))
         }
-
-        activity.bottomSheet.prependItems(
-                BottomSheetPrimaryItem(true)
-                        .withTitle(R.string.menu_grades_config)
-                        .withIcon(CommunityMaterial.Icon.cmd_cog_outline)
-                        .withOnClickListener(View.OnClickListener {
-                            activity.bottomSheet.close()
-                            GradesConfigDialog(activity, true, null, null).show()
-                        }),
-                BottomSheetSeparatorItem(true),
-                BottomSheetPrimaryItem(true)
-                        .withTitle(R.string.menu_mark_as_read)
-                        .withIcon(CommunityMaterial.Icon.cmd_eye_check_outline)
-                        .withOnClickListener(View.OnClickListener {
-                            activity.bottomSheet.close()
-                            AsyncTask.execute { App.db.metadataDao().setAllSeen(App.profileId, MetadataType.GRADE, true) }
-                            Toast.makeText(activity, R.string.main_menu_mark_as_read_success, Toast.LENGTH_SHORT).show()
-                        })
-        )
-        activity.gainAttention()
-    }}
+    }
 
     private fun expandSubject(adapter: GradesAdapter) {
         var expandSubjectModel: GradesSubject? = null

app/src/main/java/pl/szczodrzynski/edziennik/ui/grades/editor/GradesEditorFragment.kt

@@ -4,41 +4,34 @@ import android.graphics.PorterDuff
 import android.graphics.PorterDuffColorFilter
 import android.os.Bundle
 import android.text.InputType
-import android.view.LayoutInflater
 import android.view.View
-import android.view.ViewGroup
 import androidx.appcompat.widget.PopupMenu
-import androidx.fragment.app.Fragment
 import androidx.lifecycle.Observer
 import androidx.recyclerview.widget.LinearLayoutManager
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import pl.szczodrzynski.edziennik.App
 import pl.szczodrzynski.edziennik.MainActivity
 import pl.szczodrzynski.edziennik.R
+import pl.szczodrzynski.edziennik.core.manager.GradesManager.Companion.YEAR_1_AVG_2_AVG
+import pl.szczodrzynski.edziennik.core.manager.GradesManager.Companion.YEAR_1_AVG_2_SEM
+import pl.szczodrzynski.edziennik.core.manager.GradesManager.Companion.YEAR_1_SEM_2_AVG
+import pl.szczodrzynski.edziennik.core.manager.GradesManager.Companion.YEAR_ALL_GRADES
 import pl.szczodrzynski.edziennik.data.db.entity.Grade
 import pl.szczodrzynski.edziennik.databinding.FragmentGradesEditorBinding
 import pl.szczodrzynski.edziennik.ext.getFloat
 import pl.szczodrzynski.edziennik.ext.getInt
 import pl.szczodrzynski.edziennik.ext.getLong
 import pl.szczodrzynski.edziennik.ext.input
+import pl.szczodrzynski.edziennik.ui.base.fragment.BaseFragment
 import pl.szczodrzynski.edziennik.utils.Colors
-import pl.szczodrzynski.edziennik.core.manager.GradesManager.Companion.YEAR_1_AVG_2_AVG
-import pl.szczodrzynski.edziennik.core.manager.GradesManager.Companion.YEAR_1_AVG_2_SEM
-import pl.szczodrzynski.edziennik.core.manager.GradesManager.Companion.YEAR_1_SEM_2_AVG
-import pl.szczodrzynski.edziennik.core.manager.GradesManager.Companion.YEAR_ALL_GRADES
 import timber.log.Timber
 import java.text.DecimalFormat
-import java.util.*
+import java.util.Locale
 import kotlin.math.floor
 
-class GradesEditorFragment : Fragment() {
-
-    private lateinit var app: App
-    private lateinit var activity: MainActivity
-    private lateinit var b: FragmentGradesEditorBinding
-/*
-    private val navController: NavController by lazy { Navigation.findNavController(b.root) }
-*/
+class GradesEditorFragment : BaseFragment<FragmentGradesEditorBinding, MainActivity>(
+    inflater = FragmentGradesEditorBinding::inflate,
+) {
 
     private val config by lazy { app.profile.config.grades }
 
@@ -61,20 +54,7 @@ class GradesEditorFragment : Fragment() {
     private var averageMode = YEAR_ALL_GRADES // this means the container should be gone
     private var yearAverageBefore = 0.0f
 
-    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
-        activity = (getActivity() as MainActivity?) ?: return null
-        if (context == null)
-            return null
-        app = activity.application as App
-        // activity, context and profile is valid
-        b = FragmentGradesEditorBinding.inflate(inflater)
-        return b.root
-    }
-
-    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
-        if (!isAdded)
-            return
-
+    override suspend fun onViewReady(savedInstanceState: Bundle?) {
         subjectId = arguments.getLong("subjectId", -1)
         semester = arguments.getInt("semester", 1)
 

app/src/main/java/pl/szczodrzynski/edziennik/ui/home/CardItemTouchHelperCallback.kt

@@ -5,16 +5,22 @@
 package pl.szczodrzynski.edziennik.ui.home
 
 import androidx.recyclerview.widget.ItemTouchHelper
-import androidx.recyclerview.widget.ItemTouchHelper.*
+import androidx.recyclerview.widget.ItemTouchHelper.ACTION_STATE_DRAG
+import androidx.recyclerview.widget.ItemTouchHelper.ACTION_STATE_IDLE
+import androidx.recyclerview.widget.ItemTouchHelper.ACTION_STATE_SWIPE
+import androidx.recyclerview.widget.ItemTouchHelper.DOWN
+import androidx.recyclerview.widget.ItemTouchHelper.LEFT
+import androidx.recyclerview.widget.ItemTouchHelper.UP
 import androidx.recyclerview.widget.RecyclerView
 import com.google.android.material.card.MaterialCardView
 import pl.szczodrzynski.edziennik.ui.home.HomeFragment.Companion.removeCard
 import pl.szczodrzynski.edziennik.ui.home.HomeFragment.Companion.swapCards
-import pl.szczodrzynski.edziennik.utils.SwipeRefreshLayoutNoIndicator
 
-class CardItemTouchHelperCallback(private val cardAdapter: HomeCardAdapter, private val refreshLayout: SwipeRefreshLayoutNoIndicator?) : ItemTouchHelper.Callback() {
+class CardItemTouchHelperCallback(
+    private val cardAdapter: HomeCardAdapter,
+    private val onCanRefresh: ((canRefresh: Boolean) -> Unit)?,
+) : ItemTouchHelper.Callback() {
     companion object {
-        private const val TAG = "CardItemTouchHelperCallback"
         private const val DRAG_FLAGS = UP or DOWN
         private const val SWIPE_FLAGS = LEFT
     }
@@ -45,10 +51,10 @@ class CardItemTouchHelperCallback(private val cardAdapter: HomeCardAdapter, priv
         if (viewHolder != null && (actionState == ACTION_STATE_DRAG || actionState == ACTION_STATE_SWIPE)) {
             dragCardView = viewHolder.itemView as MaterialCardView
             dragCardView?.isDragged = true
-            refreshLayout?.isEnabled = false
+            onCanRefresh?.invoke(false)
         }
         else if (actionState == ACTION_STATE_IDLE && dragCardView != null) {
-            refreshLayout?.isEnabled = true
+            onCanRefresh?.invoke(true)
             dragCardView?.isDragged = false
             dragCardView = null
         }

app/src/main/java/pl/szczodrzynski/edziennik/ui/home/HomeConfigDialog.kt

@@ -8,7 +8,7 @@ import androidx.appcompat.app.AppCompatActivity
 import pl.szczodrzynski.edziennik.App
 import pl.szczodrzynski.edziennik.MainActivity
 import pl.szczodrzynski.edziennik.R
-import pl.szczodrzynski.edziennik.ui.dialogs.base.BaseDialog
+import pl.szczodrzynski.edziennik.ui.base.dialog.BaseDialog
 import pl.szczodrzynski.edziennik.ui.home.HomeCard.Companion.CARD_EVENTS
 import pl.szczodrzynski.edziennik.ui.home.HomeCard.Companion.CARD_GRADES
 import pl.szczodrzynski.edziennik.ui.home.HomeCard.Companion.CARD_LUCKY_NUMBER

app/src/main/java/pl/szczodrzynski/edziennik/ui/home/HomeFragment.kt

@@ -5,22 +5,19 @@
 package pl.szczodrzynski.edziennik.ui.home
 
 import android.os.Bundle
-import android.view.LayoutInflater
 import android.view.View
-import android.view.View.OnClickListener
-import android.view.ViewGroup
 import android.widget.Toast
 import androidx.core.view.AccessibilityDelegateCompat
 import androidx.core.view.accessibility.AccessibilityNodeInfoCompat
 import androidx.core.view.accessibility.AccessibilityNodeInfoCompat.AccessibilityActionCompat
 import androidx.core.widget.NestedScrollView
-import androidx.fragment.app.Fragment
 import androidx.recyclerview.widget.ItemTouchHelper
 import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerViewAccessibilityDelegate
 import com.mikepenz.iconics.typeface.library.community.material.CommunityMaterial.Icon
 import eu.szkolny.font.SzkolnyFont
-import kotlinx.coroutines.*
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
 import pl.szczodrzynski.edziennik.App
 import pl.szczodrzynski.edziennik.BuildConfig
 import pl.szczodrzynski.edziennik.MainActivity
@@ -29,16 +26,22 @@ import pl.szczodrzynski.edziennik.data.enums.FeatureType
 import pl.szczodrzynski.edziennik.databinding.FragmentHomeBinding
 import pl.szczodrzynski.edziennik.ext.hasUIFeature
 import pl.szczodrzynski.edziennik.ext.onClick
+import pl.szczodrzynski.edziennik.ui.base.fragment.BaseFragment
 import pl.szczodrzynski.edziennik.ui.dialogs.settings.StudentNumberDialog
-import pl.szczodrzynski.edziennik.ui.home.cards.*
+import pl.szczodrzynski.edziennik.ui.home.cards.HomeArchiveCard
+import pl.szczodrzynski.edziennik.ui.home.cards.HomeAvailabilityCard
+import pl.szczodrzynski.edziennik.ui.home.cards.HomeEventsCard
+import pl.szczodrzynski.edziennik.ui.home.cards.HomeGradesCard
+import pl.szczodrzynski.edziennik.ui.home.cards.HomeLuckyNumberCard
+import pl.szczodrzynski.edziennik.ui.home.cards.HomeNotesCard
+import pl.szczodrzynski.edziennik.ui.home.cards.HomeTimetableCard
 import pl.szczodrzynski.navlib.bottomsheet.items.BottomSheetPrimaryItem
 import pl.szczodrzynski.navlib.bottomsheet.items.BottomSheetSeparatorItem
-import kotlin.coroutines.CoroutineContext
 
-class HomeFragment : Fragment(), CoroutineScope {
+class HomeFragment : BaseFragment<FragmentHomeBinding, MainActivity>(
+    inflater = FragmentHomeBinding::inflate,
+) {
     companion object {
-        private const val TAG = "HomeFragment"
-
         fun swapCards(fromPosition: Int, toPosition: Int, cardAdapter: HomeCardAdapter): Boolean {
             val fromCard = cardAdapter.items[fromPosition]
             val toCard = cardAdapter.items[toPosition]
@@ -75,75 +78,58 @@ class HomeFragment : Fragment(), CoroutineScope {
         }
     }
 
-    private lateinit var app: App
-    private lateinit var activity: MainActivity
-    private lateinit var b: FragmentHomeBinding
+    override fun getBottomSheetItems() = listOf(
+        BottomSheetPrimaryItem(true)
+            .withTitle(R.string.menu_add_remove_cards)
+            .withIcon(Icon.cmd_card_bulleted_settings_outline)
+            .withOnClickListener {
+                activity.bottomSheet.close()
+                HomeConfigDialog(activity, reloadOnDismiss = true).show()
+            },
+        BottomSheetPrimaryItem(true)
+            .withTitle(R.string.menu_set_student_number)
+            .withIcon(SzkolnyFont.Icon.szf_clipboard_list_outline)
+            .withOnClickListener {
+                activity.bottomSheet.close()
+                StudentNumberDialog(activity, app.profile) {
+                    app.profileSave()
+                }
+            },
+        BottomSheetSeparatorItem(true),
+        BottomSheetPrimaryItem(true)
+            .withTitle(R.string.menu_mark_everything_as_read)
+            .withIcon(Icon.cmd_eye_check_outline)
+            .withOnClickListener {
+                activity.bottomSheet.close()
+                launch(Dispatchers.IO) {
+                    if (!app.data.uiConfig.enableMarkAsReadAnnouncements) {
+                        app.db.metadataDao()
+                            .setAllSeenExceptMessagesAndAnnouncements(App.profileId, true)
+                    } else {
+                        app.db.metadataDao().setAllSeenExceptMessages(App.profileId, true)
+                    }
+                }
+
+                Toast.makeText(
+                    activity,
+                    R.string.main_menu_mark_as_read_success,
+                    Toast.LENGTH_SHORT
+                ).show()
+            }
+    )
 
-    private val job: Job = Job()
-    override val coroutineContext: CoroutineContext
-        get() = job + Dispatchers.Main
     private val manager
         get() = app.permissionManager
-    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
-        activity = (getActivity() as MainActivity?) ?: return null
-        context ?: return null
-        app = activity.application as App
-        b = FragmentHomeBinding.inflate(inflater)
-        b.refreshLayout.setParent(activity.swipeRefreshLayout)
-        return b.root
-    }
-
-    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
-        // TODO check if app, activity, b can be null
-        if (!isAdded)
-            return
 
+    override suspend fun onViewReady(savedInstanceState: Bundle?) {
         if (!manager.isNotificationPermissionGranted) {
             manager.requestNotificationsPermission(activity, 0, false){}
         }
 
-        activity.bottomSheet.prependItems(
-                BottomSheetPrimaryItem(true)
-                        .withTitle(R.string.menu_add_remove_cards)
-                        .withIcon(Icon.cmd_card_bulleted_settings_outline)
-                        .withOnClickListener(OnClickListener {
-                            activity.bottomSheet.close()
-                            HomeConfigDialog(activity, reloadOnDismiss = true).show()
-                        }),
-                BottomSheetPrimaryItem(true)
-                        .withTitle(R.string.menu_set_student_number)
-                        .withIcon(SzkolnyFont.Icon.szf_clipboard_list_outline)
-                        .withOnClickListener(OnClickListener {
-                            activity.bottomSheet.close()
-                            StudentNumberDialog(activity, app.profile) {
-                                app.profileSave()
-                            }
-                        }),
-                BottomSheetSeparatorItem(true),
-                BottomSheetPrimaryItem(true)
-                        .withTitle(R.string.menu_mark_everything_as_read)
-                        .withIcon(Icon.cmd_eye_check_outline)
-                        .withOnClickListener(OnClickListener {
-                            activity.bottomSheet.close()
-                            launch { withContext(Dispatchers.Default) {
-                                if (!app.data.uiConfig.enableMarkAsReadAnnouncements) {
-                                    app.db.metadataDao().setAllSeenExceptMessagesAndAnnouncements(App.profileId, true)
-                                } else {
-                                    app.db.metadataDao().setAllSeenExceptMessages(App.profileId, true)
-                                }
-                            } }
-
-                            Toast.makeText(activity, R.string.main_menu_mark_as_read_success, Toast.LENGTH_SHORT).show()
-                        })
-        )
         b.configureCards.onClick {
             HomeConfigDialog(activity, reloadOnDismiss = true).show()
         }
 
-        b.scrollView.setOnScrollChangeListener { _: NestedScrollView?, _: Int, scrollY: Int, _: Int, _: Int ->
-            b.refreshLayout.isEnabled = scrollY == 0
-        }
-
         val cards = app.profile.config.ui.homeCards.filter { it.profileId == app.profile.id }.toMutableList()
         if (cards.isEmpty()) {
             cards += listOfNotNull(
@@ -184,7 +170,9 @@ class HomeFragment : Fragment(), CoroutineScope {
         }
 
         val adapter = HomeCardAdapter(items)
-        val itemTouchHelper = ItemTouchHelper(CardItemTouchHelperCallback(adapter, b.refreshLayout))
+        val itemTouchHelper = ItemTouchHelper(CardItemTouchHelperCallback(adapter) {
+            canRefreshDisabled = !it
+        })
         adapter.itemTouchHelper = itemTouchHelper
         b.list.layoutManager = LinearLayoutManager(activity)
         b.list.adapter = adapter

app/src/main/java/pl/szczodrzynski/edziennik/ui/homework/HomeworkFragment.kt

@@ -4,116 +4,49 @@
 
 package pl.szczodrzynski.edziennik.ui.homework
 
-import android.os.AsyncTask
-import android.os.Bundle
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
-import android.widget.Toast
-import androidx.fragment.app.Fragment
 import com.mikepenz.iconics.typeface.library.community.material.CommunityMaterial
 import eu.szkolny.font.SzkolnyFont
 import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.Job
 import pl.szczodrzynski.edziennik.App
 import pl.szczodrzynski.edziennik.MainActivity
 import pl.szczodrzynski.edziennik.R
 import pl.szczodrzynski.edziennik.data.db.entity.Event
-import pl.szczodrzynski.edziennik.data.db.entity.Metadata
 import pl.szczodrzynski.edziennik.data.enums.MetadataType
-import pl.szczodrzynski.edziennik.databinding.HomeworkFragmentBinding
+import pl.szczodrzynski.edziennik.databinding.BasePagerFragmentBinding
 import pl.szczodrzynski.edziennik.ext.Bundle
-import pl.szczodrzynski.edziennik.ext.addOnPageSelectedListener
-import pl.szczodrzynski.edziennik.ui.base.lazypager.FragmentLazyPagerAdapter
+import pl.szczodrzynski.edziennik.ui.base.fragment.PagerFragment
 import pl.szczodrzynski.edziennik.ui.event.EventManualDialog
 import pl.szczodrzynski.navlib.bottomsheet.items.BottomSheetPrimaryItem
-import pl.szczodrzynski.navlib.bottomsheet.items.BottomSheetSeparatorItem
-import kotlin.coroutines.CoroutineContext
 
-class HomeworkFragment : Fragment(), CoroutineScope {
-    companion object {
-        private const val TAG = "HomeworkFragment"
-        var pageSelection = 0
-    }
+class HomeworkFragment : PagerFragment<BasePagerFragmentBinding, MainActivity>(
+    inflater = BasePagerFragmentBinding::inflate,
+), CoroutineScope {
 
-    private lateinit var app: App
-    private lateinit var activity: MainActivity
-    private lateinit var b: HomeworkFragmentBinding
-
-    private val job: Job = Job()
-    override val coroutineContext: CoroutineContext
-        get() = job + Dispatchers.Main
-
-    // local/private variables go here
-
-    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
-        activity = (getActivity() as MainActivity?) ?: return null
-        context ?: return null
-        app = activity.application as App
-        b = HomeworkFragmentBinding.inflate(inflater)
-        b.refreshLayout.setParent(activity.swipeRefreshLayout)
-        return b.root
-    }
-
-    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
-        if (!isAdded) return
-
-        activity.bottomSheet.prependItems(
-                BottomSheetPrimaryItem(true)
-                .withTitle(R.string.menu_add_event)
-                .withDescription(R.string.menu_add_event_desc)
-                .withIcon(SzkolnyFont.Icon.szf_calendar_plus_outline)
-                .withOnClickListener(View.OnClickListener {
-                    activity.bottomSheet.close()
-                    EventManualDialog(activity, App.profileId, defaultType = Event.TYPE_HOMEWORK).show()
-                }),
-        BottomSheetSeparatorItem(true),
+    override fun getFab() = R.string.add to CommunityMaterial.Icon3.cmd_plus
+    override fun getMarkAsReadType() = MetadataType.HOMEWORK
+    override fun getBottomSheetItems() = listOf(
         BottomSheetPrimaryItem(true)
-                .withTitle(R.string.menu_mark_as_read)
-                .withIcon(CommunityMaterial.Icon.cmd_eye_check_outline)
-                .withOnClickListener(View.OnClickListener {
-                    activity.bottomSheet.close()
-                    AsyncTask.execute { app.db.metadataDao().setAllSeen(App.profileId, MetadataType.HOMEWORK, true) }
-                    Toast.makeText(activity, R.string.main_menu_mark_as_read_success, Toast.LENGTH_SHORT).show()
-                }))
-
-        val pagerAdapter = FragmentLazyPagerAdapter(
-            parentFragmentManager,
-                b.refreshLayout,
-                listOf(
-                        HomeworkListFragment().apply {
-                            arguments = Bundle("homeworkDate" to HomeworkDate.CURRENT)
-                        } to getString(R.string.homework_tab_current),
-
-                        HomeworkListFragment().apply {
-                            arguments = Bundle("homeworkDate" to HomeworkDate.PAST)
-                        } to getString(R.string.homework_tab_past)
-                )
-        )
-        b.viewPager.apply {
-            offscreenPageLimit = 1
-            adapter = pagerAdapter
-            currentItem = pageSelection
-            addOnPageSelectedListener {
-                pageSelection = it
-            }
-            b.tabLayout.setupWithViewPager(this)
-        }
-
-        activity.navView.apply {
-            bottomBar.apply {
-                fabEnable = true
-                fabExtendedText = getString(R.string.add)
-                fabIcon = CommunityMaterial.Icon3.cmd_plus
-            }
-
-            setFabOnClickListener(View.OnClickListener {
+            .withTitle(R.string.menu_add_event)
+            .withDescription(R.string.menu_add_event_desc)
+            .withIcon(SzkolnyFont.Icon.szf_calendar_plus_outline)
+            .withOnClickListener {
+                activity.bottomSheet.close()
                 EventManualDialog(activity, App.profileId, defaultType = Event.TYPE_HOMEWORK).show()
-            })
-        }
+            }
+    )
 
-        activity.gainAttention()
-        activity.gainAttentionFAB()
+    override fun getTabLayout() = b.tabLayout
+    override fun getViewPager() = b.viewPager
+    override suspend fun onCreatePages() = listOf(
+        HomeworkListFragment().apply {
+            arguments = Bundle("homeworkDate" to HomeworkDate.CURRENT)
+        } to getString(R.string.homework_tab_current),
+        HomeworkListFragment().apply {
+            arguments = Bundle("homeworkDate" to HomeworkDate.PAST)
+        } to getString(R.string.homework_tab_past)
+    )
+
+    override suspend fun onFabClick() {
+        EventManualDialog(activity, App.profileId, defaultType = Event.TYPE_HOMEWORK).show()
     }
 }

app/src/main/java/pl/szczodrzynski/edziennik/ui/homework/HomeworkListFragment.kt

@@ -1,52 +1,28 @@
 package pl.szczodrzynski.edziennik.ui.homework
 
 import android.os.Bundle
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
 import androidx.core.view.isVisible
 import androidx.lifecycle.Observer
 import androidx.recyclerview.widget.LinearLayoutManager
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.Job
-import pl.szczodrzynski.edziennik.*
+import pl.szczodrzynski.edziennik.App
+import pl.szczodrzynski.edziennik.MainActivity
 import pl.szczodrzynski.edziennik.data.db.entity.Event
 import pl.szczodrzynski.edziennik.databinding.HomeworkListFragmentBinding
 import pl.szczodrzynski.edziennik.ext.getInt
-import pl.szczodrzynski.edziennik.ext.startCoroutineTimer
-import pl.szczodrzynski.edziennik.ui.base.lazypager.LazyFragment
+import pl.szczodrzynski.edziennik.ui.base.fragment.BaseFragment
 import pl.szczodrzynski.edziennik.ui.event.EventDetailsDialog
 import pl.szczodrzynski.edziennik.ui.event.EventListAdapter
 import pl.szczodrzynski.edziennik.ui.event.EventManualDialog
 import pl.szczodrzynski.edziennik.utils.SimpleDividerItemDecoration
 import pl.szczodrzynski.edziennik.utils.models.Date
-import kotlin.coroutines.CoroutineContext
 
-class HomeworkListFragment : LazyFragment(), CoroutineScope {
-    companion object {
-        private const val TAG = "HomeworkListFragment"
-    }
+class HomeworkListFragment : BaseFragment<HomeworkListFragmentBinding, MainActivity>(
+    inflater = HomeworkListFragmentBinding::inflate,
+) {
 
-    private lateinit var app: App
-    private lateinit var activity: MainActivity
-    private lateinit var b: HomeworkListFragmentBinding
+    override fun getRefreshScrollingView() = b.list
 
-    private val job: Job = Job()
-    override val coroutineContext: CoroutineContext
-        get() = job + Dispatchers.Main
-
-    // local/private variables go here
-
-    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
-        activity = (getActivity() as MainActivity?) ?: return null
-        context ?: return null
-        app = activity.application as App
-        b = HomeworkListFragmentBinding.inflate(inflater)
-        return b.root
-    }
-
-    override fun onPageCreated(): Boolean { startCoroutineTimer(100L) {
+    override suspend fun onViewReady(savedInstanceState: Bundle?) {
         val homeworkDate = arguments.getInt("homeworkDate", HomeworkDate.CURRENT)
 
         val today = Date.getToday()
@@ -87,7 +63,6 @@ class HomeworkListFragment : LazyFragment(), CoroutineScope {
             }
 
             // show/hide relevant views
-            setSwipeToRefresh(events.isEmpty())
             b.progressBar.isVisible = false
             b.list.isVisible = events.isNotEmpty()
             b.noData.isVisible = events.isEmpty()
@@ -104,7 +79,6 @@ class HomeworkListFragment : LazyFragment(), CoroutineScope {
                     setHasFixedSize(true)
                     layoutManager = LinearLayoutManager(context)
                     addItemDecoration(SimpleDividerItemDecoration(context))
-                    addOnScrollListener(onScrollListener)
                     this.adapter = adapter
                 }
             }
@@ -112,5 +86,5 @@ class HomeworkListFragment : LazyFragment(), CoroutineScope {
             // reapply the filter
             adapter.getSearchField()?.applyTo(adapter)
         })
-    }; return true }
+    }
 }

app/src/main/java/pl/szczodrzynski/edziennik/ui/login/LoginActivity.kt

@@ -9,6 +9,7 @@ import android.os.Bundle
 import androidx.appcompat.app.AppCompatActivity
 import androidx.navigation.NavOptions
 import androidx.navigation.Navigation
+import androidx.swiperefreshlayout.widget.SwipeRefreshLayout
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
@@ -19,8 +20,7 @@ import pl.szczodrzynski.edziennik.R
 import pl.szczodrzynski.edziennik.data.api.models.ApiError
 import pl.szczodrzynski.edziennik.data.db.entity.LoginStore
 import pl.szczodrzynski.edziennik.databinding.LoginActivityBinding
-import pl.szczodrzynski.edziennik.ui.error.ErrorSnackbar
-import pl.szczodrzynski.edziennik.utils.SwipeRefreshLayoutNoTouch
+import pl.szczodrzynski.edziennik.ui.main.ErrorSnackbar
 import kotlin.coroutines.CoroutineContext
 
 class LoginActivity : AppCompatActivity(), CoroutineScope {
@@ -34,7 +34,7 @@ class LoginActivity : AppCompatActivity(), CoroutineScope {
     lateinit var navOptionsBuilder: NavOptions.Builder
     val nav by lazy { Navigation.findNavController(this, R.id.nav_host_fragment) }
     val errorSnackbar: ErrorSnackbar by lazy { ErrorSnackbar(this) }
-    val swipeRefreshLayout: SwipeRefreshLayoutNoTouch by lazy { b.swipeRefreshLayout }
+    val swipeRefreshLayout: SwipeRefreshLayout by lazy { b.swipeRefreshLayout }
 
     private val job: Job = Job()
     override val coroutineContext: CoroutineContext

app/src/main/java/pl/szczodrzynski/edziennik/ui/main/BuildInvalidActivity.kt

@@ -2,7 +2,7 @@
  * Copyright (c) Kuba Szczodrzyński 2021-3-27.
  */
 
-package pl.szczodrzynski.edziennik.ui.base
+package pl.szczodrzynski.edziennik.ui.main
 
 import android.graphics.Color
 import android.os.Bundle
@@ -12,7 +12,6 @@ import com.mikepenz.iconics.utils.colorInt
 import pl.szczodrzynski.edziennik.databinding.ActivityBuildInvalidBinding
 import pl.szczodrzynski.edziennik.ext.app
 import pl.szczodrzynski.edziennik.ext.onClick
-import pl.szczodrzynski.edziennik.utils.Themes
 
 class BuildInvalidActivity : AppCompatActivity() {
 

app/src/main/java/pl/szczodrzynski/edziennik/ui/main/CrashActivity.kt

@@ -1,4 +1,4 @@
-package pl.szczodrzynski.edziennik.ui.base
+package pl.szczodrzynski.edziennik.ui.main
 
 import android.content.ClipData
 import android.content.ClipboardManager
@@ -21,6 +21,7 @@ import pl.szczodrzynski.edziennik.data.api.szkolny.SzkolnyApi
 import pl.szczodrzynski.edziennik.data.api.szkolny.request.ErrorReportRequest
 import pl.szczodrzynski.edziennik.ext.resolveAttr
 import pl.szczodrzynski.edziennik.ext.resolveColor
+import pl.szczodrzynski.edziennik.ext.resolveStyleAttr
 import pl.szczodrzynski.edziennik.utils.html.BetterHtml
 import kotlin.coroutines.CoroutineContext
 
@@ -88,7 +89,7 @@ class CrashActivity : AppCompatActivity(), CoroutineScope {
 
         val moreInfoButton = findViewById<Button>(R.id.crash_details_btn)
         moreInfoButton.setOnClickListener {
-            MaterialAlertDialogBuilder(this, R.attr.materialAlertDialogMonospaceTheme.resolveAttr(this))
+            MaterialAlertDialogBuilder(this, R.attr.materialAlertDialogMonospaceTheme.resolveStyleAttr(this))
                 .setTitle(R.string.crash_details)
                 .setMessage(BetterHtml.fromHtml(context = null, getErrorString(intent, false)))
                 .setPositiveButton(R.string.close, null)

app/src/main/java/pl/szczodrzynski/edziennik/ui/main/ErrorSnackbar.kt

@@ -2,7 +2,7 @@
  * Copyright (c) Kuba Szczodrzyński 2019-11-13.
  */
 
-package pl.szczodrzynski.edziennik.ui.error
+package pl.szczodrzynski.edziennik.ui.main
 
 import android.view.View
 import androidx.appcompat.app.AppCompatActivity
@@ -14,6 +14,7 @@ import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
 import pl.szczodrzynski.edziennik.R
 import pl.szczodrzynski.edziennik.data.api.models.ApiError
+import pl.szczodrzynski.edziennik.ui.dialogs.ErrorDetailsDialog
 import pl.szczodrzynski.navlib.getColorFromAttr
 import kotlin.coroutines.CoroutineContext
 

app/src/main/java/pl/szczodrzynski/edziennik/ui/main/MainSnackbar.kt

@@ -2,7 +2,7 @@
  * Copyright (c) Kuba Szczodrzyński 2019-12-22.
  */
 
-package pl.szczodrzynski.edziennik.ui.base
+package pl.szczodrzynski.edziennik.ui.main
 
 import android.view.View
 import androidx.appcompat.app.AppCompatActivity

app/src/main/java/pl/szczodrzynski/edziennik/ui/messages/compose/MessagesComposeFragment.kt

@@ -6,22 +6,27 @@ package pl.szczodrzynski.edziennik.ui.messages.compose
 
 import android.annotation.SuppressLint
 import android.os.Bundle
-import android.view.LayoutInflater
 import android.view.View
-import android.view.ViewGroup
 import android.widget.AutoCompleteTextView
 import android.widget.ScrollView
 import android.widget.Toast
 import androidx.core.view.isVisible
 import androidx.core.widget.addTextChangedListener
-import androidx.fragment.app.Fragment
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import com.mikepenz.iconics.typeface.library.community.material.CommunityMaterial
-import kotlinx.coroutines.*
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
 import org.greenrobot.eventbus.EventBus
 import org.greenrobot.eventbus.Subscribe
 import org.greenrobot.eventbus.ThreadMode
-import pl.szczodrzynski.edziennik.*
+import pl.szczodrzynski.edziennik.App
+import pl.szczodrzynski.edziennik.MainActivity
+import pl.szczodrzynski.edziennik.R
+import pl.szczodrzynski.edziennik.core.manager.MessageManager.UIConfig
+import pl.szczodrzynski.edziennik.core.manager.TextStylingManager.HtmlMode.COMPATIBLE
+import pl.szczodrzynski.edziennik.core.manager.TextStylingManager.HtmlMode.ORIGINAL
+import pl.szczodrzynski.edziennik.core.manager.TextStylingManager.StylingConfig
 import pl.szczodrzynski.edziennik.data.api.ERROR_MESSAGE_NOT_SENT
 import pl.szczodrzynski.edziennik.data.api.edziennik.EdziennikTask
 import pl.szczodrzynski.edziennik.data.api.events.MessageSentEvent
@@ -30,33 +35,49 @@ import pl.szczodrzynski.edziennik.data.api.models.ApiError
 import pl.szczodrzynski.edziennik.data.db.entity.Message
 import pl.szczodrzynski.edziennik.data.db.entity.Teacher
 import pl.szczodrzynski.edziennik.data.enums.LoginType
+import pl.szczodrzynski.edziennik.data.enums.NavTarget
 import pl.szczodrzynski.edziennik.databinding.MessagesComposeFragmentBinding
 import pl.szczodrzynski.edziennik.ext.Bundle
 import pl.szczodrzynski.edziennik.ext.DAY
-import pl.szczodrzynski.edziennik.data.enums.NavTarget
+import pl.szczodrzynski.edziennik.ui.base.fragment.BaseFragment
 import pl.szczodrzynski.edziennik.ui.dialogs.settings.MessagesConfigDialog
 import pl.szczodrzynski.edziennik.ui.messages.list.MessagesFragment
 import pl.szczodrzynski.edziennik.utils.DefaultTextStyles
-import pl.szczodrzynski.edziennik.core.manager.MessageManager.UIConfig
-import pl.szczodrzynski.edziennik.core.manager.TextStylingManager.HtmlMode.COMPATIBLE
-import pl.szczodrzynski.edziennik.core.manager.TextStylingManager.HtmlMode.ORIGINAL
-import pl.szczodrzynski.edziennik.core.manager.TextStylingManager.StylingConfig
 import pl.szczodrzynski.navlib.bottomsheet.items.BottomSheetPrimaryItem
 import pl.szczodrzynski.navlib.bottomsheet.items.BottomSheetSeparatorItem
-import kotlin.coroutines.CoroutineContext
 
-class MessagesComposeFragment : Fragment(), CoroutineScope {
+class MessagesComposeFragment : BaseFragment<MessagesComposeFragmentBinding, MainActivity>(
+    inflater = MessagesComposeFragmentBinding::inflate,
+) {
     companion object {
         private const val TAG = "MessagesComposeFragment"
     }
 
-    private lateinit var app: App
-    private lateinit var activity: MainActivity
-    private lateinit var b: MessagesComposeFragmentBinding
-
-    private val job: Job = Job()
-    override val coroutineContext: CoroutineContext
-        get() = job + Dispatchers.Main
+    override fun getFab() = R.string.messages_compose_send to CommunityMaterial.Icon3.cmd_send_outline
+    override fun getBottomSheetItems() = listOf(
+        BottomSheetPrimaryItem(true)
+            .withTitle(R.string.messages_compose_send_long)
+            .withIcon(CommunityMaterial.Icon3.cmd_send_outline)
+            .withOnClickListener {
+                activity.bottomSheet.close()
+                sendMessage()
+            },
+        BottomSheetPrimaryItem(true)
+            .withTitle(R.string.messages_compose_save_draft)
+            .withIcon(CommunityMaterial.Icon.cmd_content_save_edit_outline)
+            .withOnClickListener {
+                activity.bottomSheet.close()
+                saveDraft()
+            },
+        BottomSheetSeparatorItem(true),
+        BottomSheetPrimaryItem(true)
+            .withTitle(R.string.menu_messages_config)
+            .withIcon(CommunityMaterial.Icon.cmd_cog_outline)
+            .withOnClickListener {
+                activity.bottomSheet.close()
+                MessagesConfigDialog(activity, false, null, null).show()
+            }
+    )
 
     private val manager
         get() = app.messageManager
@@ -75,25 +96,7 @@ class MessagesComposeFragment : Fragment(), CoroutineScope {
     private var discardDraftItem: BottomSheetPrimaryItem? = null
     private var draftMessageId: Long? = null
 
-    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
-        activity = (getActivity() as MainActivity?) ?: return null
-        context ?: return null
-        app = activity.application as App
-        // activity, context and profile is valid
-        b = MessagesComposeFragmentBinding.inflate(inflater)
-        return b.root
-    }
-    override fun onDestroy() {
-        EventBus.getDefault().unregister(this)
-        super.onDestroy()
-    }
-    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
-        // TODO check if app, activity, b can be null
-        if (!isAdded)
-            return
-
-        EventBus.getDefault().register(this)
-
+    override suspend fun onViewReady(savedInstanceState: Bundle?) {
         b.breakpoints.visibility = if (App.devMode) View.VISIBLE else View.GONE
         b.breakpoints.setOnClickListener {
             b.breakpoints.isEnabled = true
@@ -110,37 +113,8 @@ class MessagesComposeFragment : Fragment(), CoroutineScope {
                 discardDraftDialog()
             }
 
-        activity.bottomSheet.prependItems(
-            BottomSheetPrimaryItem(true)
-                .withTitle(R.string.messages_compose_send_long)
-                .withIcon(CommunityMaterial.Icon3.cmd_send_outline)
-                .withOnClickListener {
-                    activity.bottomSheet.close()
-                    sendMessage()
-                },
-            BottomSheetPrimaryItem(true)
-                .withTitle(R.string.messages_compose_save_draft)
-                .withIcon(CommunityMaterial.Icon.cmd_content_save_edit_outline)
-                .withOnClickListener {
-                    activity.bottomSheet.close()
-                    saveDraft()
-                },
-            BottomSheetSeparatorItem(true),
-            BottomSheetPrimaryItem(true)
-                .withTitle(R.string.menu_messages_config)
-                .withIcon(CommunityMaterial.Icon.cmd_cog_outline)
-                .withOnClickListener {
-                    activity.bottomSheet.close()
-                    MessagesConfigDialog(activity, false, null, null).show()
-                }
-        )
-
-        launch {
-            delay(100)
-            getRecipientList()
-
-            createView()
-        }
+        getRecipientList()
+        createView()
     }
 
     private fun getMessageBody(): String {
@@ -150,18 +124,16 @@ class MessagesComposeFragment : Fragment(), CoroutineScope {
             b.text.text?.toString() ?: ""
     }
 
-    private fun getRecipientList() {
+    private suspend fun getRecipientList() {
         if (app.data.messagesConfig.syncRecipientList && System.currentTimeMillis() - app.profile.lastReceiversSync > 1 * DAY * 1000) {
             activity.snackbar("Pobieranie listy odbiorców...")
             EdziennikTask.recipientListGet(App.profileId).enqueue(activity)
         }
         else {
-            launch {
-                val list = withContext(Dispatchers.Default) {
-                    app.db.teacherDao().getAllNow(App.profileId).filter { it.loginId != null }
-                }
-                updateRecipientList(list)
+            val list = withContext(Dispatchers.IO) {
+                app.db.teacherDao().getAllNow(App.profileId).filter { it.loginId != null }
             }
+            updateRecipientList(list)
         }
     }
 
@@ -259,18 +231,10 @@ class MessagesComposeFragment : Fragment(), CoroutineScope {
                 changedBody = true
             }
         }
+    }
 
-        activity.navView.bottomBar.apply {
-            fabEnable = true
-            fabExtendedText = getString(R.string.messages_compose_send)
-            fabIcon = CommunityMaterial.Icon3.cmd_send_outline
-
-            setFabOnClickListener {
-                sendMessage()
-            }
-        }
-
-        activity.gainAttentionFAB()
+    override suspend fun onFabClick() {
+        sendMessage()
     }
 
     private fun onBeforeNavigate(): Boolean {
@@ -437,15 +401,13 @@ class MessagesComposeFragment : Fragment(), CoroutineScope {
 
     override fun onResume() {
         super.onResume()
-        if (!isAdded || !this::activity.isInitialized)
+        if (!isAdded)
             return
         activity.onBeforeNavigate = this::onBeforeNavigate
     }
 
     override fun onPause() {
         super.onPause()
-        if (!this::activity.isInitialized)
-            return
         activity.onBeforeNavigate = null
     }
 

app/src/main/java/pl/szczodrzynski/edziennik/ui/messages/compose/MessagesComposeInfo.kt

@@ -1,25 +0,0 @@
-/*
- * Copyright (c) Kuba Szczodrzyński 2020-4-4.
- */
-
-package pl.szczodrzynski.edziennik.ui.messages.compose
-
-class MessagesComposeInfo(
-        /**
-         * 0 means no attachments.
-         * -1 means unlimited number.
-         */
-        @JvmField var maxAttachmentNumber: Int,
-        /**
-         * -1 means unlimited size.
-         */
-        var attachmentSizeLimit: Long,
-        /**
-         * -1 means unlimited length.
-         */
-        var maxSubjectLength: Int,
-        /**
-         * -1 means unlimited length.
-         */
-        var maxBodyLength: Int
-)

app/src/main/java/pl/szczodrzynski/edziennik/ui/messages/list/MessagesFragment.kt

@@ -1,144 +1,72 @@
 package pl.szczodrzynski.edziennik.ui.messages.list
 
 import android.os.Bundle
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
-import androidx.fragment.app.Fragment
 import com.mikepenz.iconics.typeface.library.community.material.CommunityMaterial
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.Job
-import pl.szczodrzynski.edziennik.*
+import pl.szczodrzynski.edziennik.MainActivity
+import pl.szczodrzynski.edziennik.R
 import pl.szczodrzynski.edziennik.data.db.entity.Message
-import pl.szczodrzynski.edziennik.databinding.MessagesFragmentBinding
-import pl.szczodrzynski.edziennik.ext.Bundle
-import pl.szczodrzynski.edziennik.ext.addOnPageSelectedListener
 import pl.szczodrzynski.edziennik.data.enums.NavTarget
-import pl.szczodrzynski.edziennik.ui.base.lazypager.FragmentLazyPagerAdapter
+import pl.szczodrzynski.edziennik.databinding.BasePagerFragmentBinding
+import pl.szczodrzynski.edziennik.ext.Bundle
+import pl.szczodrzynski.edziennik.ui.base.fragment.PagerFragment
 import pl.szczodrzynski.edziennik.ui.dialogs.settings.MessagesConfigDialog
 import pl.szczodrzynski.navlib.bottomsheet.items.BottomSheetPrimaryItem
-import kotlin.coroutines.CoroutineContext
 
-class MessagesFragment : Fragment(), CoroutineScope {
+class MessagesFragment : PagerFragment<BasePagerFragmentBinding, MainActivity>(
+    inflater = BasePagerFragmentBinding::inflate,
+) {
     companion object {
-        private const val TAG = "MessagesFragment"
         var pageSelection = 0
     }
 
-    private lateinit var app: App
-    private lateinit var activity: MainActivity
-    private lateinit var b: MessagesFragmentBinding
+    override fun getFab() = R.string.compose to CommunityMaterial.Icon3.cmd_pencil_outline
+    override fun getBottomSheetItems() = listOf(
+        BottomSheetPrimaryItem(true)
+            .withTitle(R.string.menu_message_compose)
+            .withIcon(CommunityMaterial.Icon3.cmd_pencil_outline)
+            .withOnClickListener {
+                activity.bottomSheet.close()
+                activity.navigate(navTarget = NavTarget.MESSAGE_COMPOSE)
+            },
+        BottomSheetPrimaryItem(true)
+            .withTitle(R.string.menu_messages_config)
+            .withIcon(CommunityMaterial.Icon.cmd_cog_outline)
+            .withOnClickListener {
+                activity.bottomSheet.close()
+                MessagesConfigDialog(activity, false, null, null).show()
+            }
+    )
 
-    private val job: Job = Job()
-    override val coroutineContext: CoroutineContext
-        get() = job + Dispatchers.Main
-
-    // local/private variables go here
-
-    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
-        activity = (getActivity() as MainActivity?) ?: return null
-        context ?: return null
-        app = activity.application as App
-        b = MessagesFragmentBinding.inflate(inflater)
-        b.refreshLayout.setParent(activity.swipeRefreshLayout)
-        return b.root
-    }
-
-    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
-        if (!isAdded) return
+    override fun getTabLayout() = b.tabLayout
+    override fun getViewPager() = b.viewPager
+    override suspend fun onCreatePages() = listOf(
+        MessagesListFragment().apply {
+            arguments = Bundle("messageType" to Message.TYPE_RECEIVED)
+        } to getString(R.string.messages_tab_received),
+        MessagesListFragment().apply {
+            arguments = Bundle("messageType" to Message.TYPE_SENT)
+        } to getString(R.string.messages_tab_sent),
+        MessagesListFragment().apply {
+            arguments = Bundle("messageType" to Message.TYPE_DELETED)
+        } to getString(R.string.messages_tab_deleted),
+        MessagesListFragment().apply {
+            arguments = Bundle("messageType" to Message.TYPE_DRAFT)
+        } to getString(R.string.messages_tab_draft),
+    )
 
+    override suspend fun onViewReady(savedInstanceState: Bundle?) {
         val messageId = arguments?.getLong("messageId", -1L) ?: -1L
         if (messageId != -1L) {
             val args = Bundle()
             args.putLong("messageId", messageId)
             arguments?.remove("messageId")
             activity.navigate(navTarget = NavTarget.MESSAGE, args = args)
-            return
         }
 
-        val args = arguments
-
-        val pagerAdapter = FragmentLazyPagerAdapter(
-            fragmentManager = parentFragmentManager,
-            swipeRefreshLayout = b.refreshLayout,
-            fragments = listOf(
-                MessagesListFragment().apply {
-                    onPageDestroy = this@MessagesFragment.onPageDestroy
-                    arguments = Bundle("messageType" to Message.TYPE_RECEIVED)
-                    args?.getBundle("page0")?.let {
-                        arguments?.putAll(it)
-                    }
-                } to getString(R.string.messages_tab_received),
-
-                MessagesListFragment().apply {
-                    onPageDestroy = this@MessagesFragment.onPageDestroy
-                    arguments = Bundle("messageType" to Message.TYPE_SENT)
-                    args?.getBundle("page1")?.let {
-                        arguments?.putAll(it)
-                    }
-                } to getString(R.string.messages_tab_sent),
-
-                MessagesListFragment().apply {
-                    onPageDestroy = this@MessagesFragment.onPageDestroy
-                    arguments = Bundle("messageType" to Message.TYPE_DELETED)
-                    args?.getBundle("page2")?.let {
-                        arguments?.putAll(it)
-                    }
-                } to getString(R.string.messages_tab_deleted),
-
-                MessagesListFragment().apply {
-                    onPageDestroy = this@MessagesFragment.onPageDestroy
-                    arguments = Bundle("messageType" to Message.TYPE_DRAFT)
-                    args?.getBundle("page3")?.let {
-                        arguments?.putAll(it)
-                    }
-                } to getString(R.string.messages_tab_draft),
-            ),
-        )
-        b.viewPager.apply {
-            offscreenPageLimit = 1
-            adapter = pagerAdapter
-            currentItem = pageSelection
-            addOnPageSelectedListener {
-                pageSelection = it
-            }
-            b.tabLayout.setupWithViewPager(this)
-        }
-
-        activity.navView.apply {
-            bottomBar.apply {
-                fabEnable = true
-                fabExtendedText = getString(R.string.compose)
-                fabIcon = CommunityMaterial.Icon3.cmd_pencil_outline
-            }
-
-            bottomSheet.prependItem(
-                BottomSheetPrimaryItem(true)
-                    .withTitle(R.string.menu_messages_config)
-                    .withIcon(CommunityMaterial.Icon.cmd_cog_outline)
-                    .withOnClickListener {
-                        activity.bottomSheet.close()
-                        MessagesConfigDialog(activity, false, null, null).show()
-                    }
-            )
-
-            setFabOnClickListener {
-                activity.navigate(navTarget = NavTarget.MESSAGE_COMPOSE)
-            }
-        }
-
-        activity.gainAttentionFAB()
+        super.onViewReady(savedInstanceState)
     }
 
-    private val onPageDestroy = { position: Int, outState: Bundle? ->
-        arguments?.putBundle("page$position", outState)
-    }
-
-    override fun onDestroy() {
-        super.onDestroy()
-        (b.viewPager.adapter as? FragmentLazyPagerAdapter)?.fragments?.forEach {
-            it.first.onDestroy()
-        }
+    override suspend fun onFabClick() {
+        activity.navigate(navTarget = NavTarget.MESSAGE_COMPOSE)
     }
 }

app/src/main/java/pl/szczodrzynski/edziennik/ui/messages/list/MessagesListFragment.kt

@@ -4,58 +4,42 @@
 
 package pl.szczodrzynski.edziennik.ui.messages.list
 
+import android.annotation.SuppressLint
 import android.os.Bundle
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
 import androidx.core.view.isVisible
 import androidx.lifecycle.Observer
 import androidx.recyclerview.widget.LinearLayoutManager
-import kotlinx.coroutines.*
-import pl.szczodrzynski.edziennik.*
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
+import pl.szczodrzynski.edziennik.App
+import pl.szczodrzynski.edziennik.MainActivity
 import pl.szczodrzynski.edziennik.data.db.entity.Message
 import pl.szczodrzynski.edziennik.data.db.entity.Teacher
+import pl.szczodrzynski.edziennik.data.enums.NavTarget
 import pl.szczodrzynski.edziennik.databinding.MessagesListFragmentBinding
 import pl.szczodrzynski.edziennik.ext.Bundle
 import pl.szczodrzynski.edziennik.ext.getInt
-import pl.szczodrzynski.edziennik.ext.startCoroutineTimer
-import pl.szczodrzynski.edziennik.data.enums.NavTarget
-import pl.szczodrzynski.edziennik.ui.base.lazypager.LazyFragment
+import pl.szczodrzynski.edziennik.ui.base.fragment.BaseFragment
 import pl.szczodrzynski.edziennik.utils.SimpleDividerItemDecoration
-import kotlin.coroutines.CoroutineContext
 
-class MessagesListFragment : LazyFragment(), CoroutineScope {
-    companion object {
-        private const val TAG = "MessagesListFragment"
-    }
+class MessagesListFragment : BaseFragment<MessagesListFragmentBinding, MainActivity>(
+    inflater = MessagesListFragmentBinding::inflate,
+) {
+
+    override fun getRefreshScrollingView() = b.list
 
-    private lateinit var app: App
-    private lateinit var activity: MainActivity
-    private lateinit var b: MessagesListFragmentBinding
     private lateinit var adapter: MessagesAdapter
-
-    private val job: Job = Job()
-    override val coroutineContext: CoroutineContext
-        get() = job + Dispatchers.Main
-
-    // local/private variables go here
     private val manager
         get() = app.messageManager
     var teachers = listOf<Teacher>()
 
-    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
-        activity = (getActivity() as MainActivity?) ?: return null
-        context ?: return null
-        app = activity.application as App
-        b = MessagesListFragmentBinding.inflate(inflater)
-        return b.root
-    }
-
-    override fun onPageCreated(): Boolean { startCoroutineTimer(100L) {
+    @SuppressLint("RestrictedApi")
+    override suspend fun onViewReady(savedInstanceState: Bundle?) {
         val messageType = arguments.getInt("messageType", Message.TYPE_RECEIVED)
         var recyclerViewState =
-            arguments?.getParcelable<LinearLayoutManager.SavedState>("recyclerViewState")
-        val searchText = arguments?.getString("searchText")
+            savedInstanceState?.getParcelable<LinearLayoutManager.SavedState>("recyclerViewState")
+        val searchText = savedInstanceState?.getString("searchText")
 
         teachers = withContext(Dispatchers.Default) {
             app.db.teacherDao().getAllNow(App.profileId)
@@ -91,8 +75,10 @@ class MessagesListFragment : LazyFragment(), CoroutineScope {
                 }
             }
 
+            if (messageType != Message.TYPE_RECEIVED && messageType != Message.TYPE_SENT)
+                canRefreshDisabled = true
+
             // show/hide relevant views
-            setSwipeToRefresh(messageType in Message.TYPE_RECEIVED..Message.TYPE_SENT)
             b.progressBar.isVisible = false
             b.list.isVisible = messages.isNotEmpty()
             b.noData.isVisible = messages.isEmpty()
@@ -109,8 +95,6 @@ class MessagesListFragment : LazyFragment(), CoroutineScope {
                     setHasFixedSize(true)
                     layoutManager = LinearLayoutManager(context)
                     addItemDecoration(SimpleDividerItemDecoration(context))
-                    if (messageType in Message.TYPE_RECEIVED..Message.TYPE_SENT)
-                        addOnScrollListener(onScrollListener)
                     this.adapter = this@MessagesListFragment.adapter
                 }
             }
@@ -126,18 +110,15 @@ class MessagesListFragment : LazyFragment(), CoroutineScope {
                 recyclerViewState = null
             }
         })
-    }; return true }
+    }
 
-    override fun onDestroy() {
-        super.onDestroy()
+    override fun onSaveInstanceState(outState: Bundle) {
+        super.onSaveInstanceState(outState)
         if (!isAdded || !this::adapter.isInitialized)
             return
         val layoutManager = (b.list.layoutManager as? LinearLayoutManager)
         val searchField = adapter.getSearchField()
-
-        onPageDestroy?.invoke(position, Bundle(
-            "recyclerViewState" to layoutManager?.onSaveInstanceState(),
-            "searchText" to searchField?.searchText?.toString()
-        ))
+        outState.putParcelable("recyclerViewState", layoutManager?.onSaveInstanceState())
+        outState.putString("searchText", searchField?.searchText?.toString())
     }
 }

app/src/main/java/pl/szczodrzynski/edziennik/ui/messages/single/MessageFragment.kt

@@ -5,28 +5,30 @@
 package pl.szczodrzynski.edziennik.ui.messages.single
 
 import android.os.Bundle
-import android.view.LayoutInflater
 import android.view.View
-import android.view.ViewGroup
 import android.widget.Toast
 import androidx.core.view.isVisible
-import androidx.fragment.app.Fragment
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
-import com.mikepenz.iconics.IconicsDrawable
 import com.mikepenz.iconics.typeface.library.community.material.CommunityMaterial
-import com.mikepenz.iconics.utils.sizeDp
-import kotlinx.coroutines.*
+import kotlinx.coroutines.launch
 import org.greenrobot.eventbus.EventBus
 import org.greenrobot.eventbus.Subscribe
 import org.greenrobot.eventbus.ThreadMode
-import pl.szczodrzynski.edziennik.*
+import pl.szczodrzynski.edziennik.App
+import pl.szczodrzynski.edziennik.MainActivity
+import pl.szczodrzynski.edziennik.R
 import pl.szczodrzynski.edziennik.data.api.edziennik.EdziennikTask
 import pl.szczodrzynski.edziennik.data.api.events.MessageGetEvent
-import pl.szczodrzynski.edziennik.data.enums.LoginType
 import pl.szczodrzynski.edziennik.data.db.full.MessageFull
-import pl.szczodrzynski.edziennik.databinding.MessageFragmentBinding
-import pl.szczodrzynski.edziennik.ext.*
+import pl.szczodrzynski.edziennik.data.enums.LoginType
 import pl.szczodrzynski.edziennik.data.enums.NavTarget
+import pl.szczodrzynski.edziennik.databinding.MessageFragmentBinding
+import pl.szczodrzynski.edziennik.ext.Bundle
+import pl.szczodrzynski.edziennik.ext.attachToastHint
+import pl.szczodrzynski.edziennik.ext.get
+import pl.szczodrzynski.edziennik.ext.isNotNullNorEmpty
+import pl.szczodrzynski.edziennik.ext.onClick
+import pl.szczodrzynski.edziennik.ui.base.fragment.BaseFragment
 import pl.szczodrzynski.edziennik.ui.dialogs.settings.MessagesConfigDialog
 import pl.szczodrzynski.edziennik.ui.messages.MessagesUtils
 import pl.szczodrzynski.edziennik.ui.messages.list.MessagesFragment
@@ -37,48 +39,27 @@ import pl.szczodrzynski.edziennik.utils.html.BetterHtml
 import pl.szczodrzynski.edziennik.utils.models.Date
 import pl.szczodrzynski.edziennik.utils.models.Time
 import pl.szczodrzynski.navlib.bottomsheet.items.BottomSheetPrimaryItem
-import pl.szczodrzynski.navlib.colorAttr
-import kotlin.coroutines.CoroutineContext
 import kotlin.math.min
 
-class MessageFragment : Fragment(), CoroutineScope {
-    companion object {
-        private const val TAG = "MessageFragment"
-    }
+class MessageFragment : BaseFragment<MessageFragmentBinding, MainActivity>(
+    inflater = MessageFragmentBinding::inflate,
+) {
 
-    private lateinit var app: App
-    private lateinit var activity: MainActivity
-    private lateinit var b: MessageFragmentBinding
-
-    private val job: Job = Job()
-    override val coroutineContext: CoroutineContext
-        get() = job + Dispatchers.Main
+    override fun getBottomSheetItems() = listOf(
+        BottomSheetPrimaryItem(true)
+            .withTitle(R.string.menu_messages_config)
+            .withIcon(CommunityMaterial.Icon.cmd_cog_outline)
+            .withOnClickListener {
+                activity.bottomSheet.close()
+                MessagesConfigDialog(activity, false, null, null).show()
+            }
+    )
 
     private val manager
         get() = app.messageManager
     private lateinit var message: MessageFull
 
-    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
-        activity = (getActivity() as MainActivity?) ?: return null
-        context ?: return null
-        app = activity.application as App
-        b = MessageFragmentBinding.inflate(inflater)
-        return b.root
-    }
-
-    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
-        if (!isAdded) return
-
-        activity.bottomSheet.prependItem(
-            BottomSheetPrimaryItem(true)
-                .withTitle(R.string.menu_messages_config)
-                .withIcon(CommunityMaterial.Icon.cmd_cog_outline)
-                .withOnClickListener {
-                    activity.bottomSheet.close()
-                    MessagesConfigDialog(activity, false, null, null).show()
-                }
-        )
-
+    override suspend fun onViewReady(savedInstanceState: Bundle?) {
         b.closeButton.onClick { activity.navigateUp() }
 
         // click to expand subject and sender
@@ -88,7 +69,6 @@ class MessageFragment : Fragment(), CoroutineScope {
         b.senderContainer.onClick {
             b.sender.maxLines = if (b.sender.maxLines == 30) 2 else 30
         }
-        // TODO bring back iconics to reply/forward buttons - add modern icons to SzkolnyFont
 
         b.messageStar.onClick {
             launch {
@@ -129,14 +109,12 @@ class MessageFragment : Fragment(), CoroutineScope {
             EdziennikTask.messageGet(App.profileId, message).enqueue(activity)
         }
 
-        launch {
-            message = manager.getMessage(App.profileId, arguments) ?: run {
-                activity.navigateUp()
-                return@launch
-            }
-            b.subject.text = message.subject
-            checkMessage()
+        message = manager.getMessage(App.profileId, arguments) ?: run {
+            activity.navigateUp()
+            return
         }
+        b.subject.text = message.subject
+        checkMessage()
     }
 
     @Subscribe(threadMode = ThreadMode.MAIN, sticky = true)
@@ -253,17 +231,4 @@ class MessageFragment : Fragment(), CoroutineScope {
             }, owner = message)
         }
     }
-
-    override fun onStart() {
-        EventBus.getDefault().register(this)
-        super.onStart()
-    }
-    override fun onStop() {
-        super.onStop()
-        EventBus.getDefault().unregister(this)
-    }
-    override fun onDestroy() {
-        super.onDestroy()
-        job.cancel()
-    }
 }

app/src/main/java/pl/szczodrzynski/edziennik/ui/notes/NoteDetailsDialog.kt

@@ -13,7 +13,7 @@ import pl.szczodrzynski.edziennik.data.db.entity.Note
 import pl.szczodrzynski.edziennik.data.db.entity.Noteable
 import pl.szczodrzynski.edziennik.databinding.NoteDetailsDialogBinding
 import pl.szczodrzynski.edziennik.ext.*
-import pl.szczodrzynski.edziennik.ui.dialogs.base.BindingDialog
+import pl.szczodrzynski.edziennik.ui.base.dialog.BindingDialog
 import pl.szczodrzynski.edziennik.utils.models.Date
 
 class NoteDetailsDialog(

app/src/main/java/pl/szczodrzynski/edziennik/ui/notes/NoteEditorDialog.kt

@@ -21,7 +21,7 @@ import pl.szczodrzynski.edziennik.data.db.entity.Profile
 import pl.szczodrzynski.edziennik.databinding.NoteEditorDialogBinding
 import pl.szczodrzynski.edziennik.ext.isNotNullNorBlank
 import pl.szczodrzynski.edziennik.ext.resolveString
-import pl.szczodrzynski.edziennik.ui.dialogs.base.BindingDialog
+import pl.szczodrzynski.edziennik.ui.base.dialog.BindingDialog
 import pl.szczodrzynski.edziennik.ui.dialogs.settings.RegistrationConfigDialog
 import pl.szczodrzynski.edziennik.utils.TextInputDropDown
 import pl.szczodrzynski.edziennik.core.manager.TextStylingManager.HtmlMode

app/src/main/java/pl/szczodrzynski/edziennik/ui/notes/NoteListDialog.kt

@@ -11,7 +11,7 @@ import androidx.recyclerview.widget.LinearLayoutManager
 import pl.szczodrzynski.edziennik.R
 import pl.szczodrzynski.edziennik.data.db.entity.Noteable
 import pl.szczodrzynski.edziennik.databinding.NoteListDialogBinding
-import pl.szczodrzynski.edziennik.ui.dialogs.base.BindingDialog
+import pl.szczodrzynski.edziennik.ui.base.dialog.BindingDialog
 import pl.szczodrzynski.edziennik.utils.SimpleDividerItemDecoration
 
 class NoteListDialog(

app/src/main/java/pl/szczodrzynski/edziennik/ui/notes/NotesFragment.kt

@@ -5,99 +5,32 @@
 package pl.szczodrzynski.edziennik.ui.notes
 
 import android.os.Bundle
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
 import androidx.core.view.isVisible
-import androidx.fragment.app.Fragment
 import androidx.recyclerview.widget.LinearLayoutManager
 import com.mikepenz.iconics.typeface.library.community.material.CommunityMaterial
-import kotlinx.coroutines.*
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
 import pl.szczodrzynski.edziennik.App
 import pl.szczodrzynski.edziennik.MainActivity
 import pl.szczodrzynski.edziennik.R
 import pl.szczodrzynski.edziennik.data.db.entity.Note
 import pl.szczodrzynski.edziennik.data.db.entity.Noteable
 import pl.szczodrzynski.edziennik.databinding.NotesFragmentBinding
+import pl.szczodrzynski.edziennik.ui.base.fragment.BaseFragment
 import pl.szczodrzynski.edziennik.utils.SimpleDividerItemDecoration
-import kotlin.coroutines.CoroutineContext
 
-class NotesFragment : Fragment(), CoroutineScope {
-    companion object {
-        private const val TAG = "NotesFragment"
-    }
+class NotesFragment : BaseFragment<NotesFragmentBinding, MainActivity>(
+    inflater = NotesFragmentBinding::inflate,
+) {
 
-    private lateinit var app: App
-    private lateinit var activity: MainActivity
-    private lateinit var b: NotesFragmentBinding
-
-    private val job: Job = Job()
-    override val coroutineContext: CoroutineContext
-        get() = job + Dispatchers.Main
+    override fun getFab() =
+        R.string.notes_action_add to CommunityMaterial.Icon3.cmd_text_box_plus_outline
 
     private val manager
         get() = app.noteManager
 
-    override fun onCreateView(
-        inflater: LayoutInflater,
-        container: ViewGroup?,
-        savedInstanceState: Bundle?,
-    ): View? {
-        activity = getActivity() as? MainActivity ?: return null
-        context ?: return null
-        app = activity.application as App
-        b = NotesFragmentBinding.inflate(inflater)
-        return b.root
-    }
-
-    private fun onNoteClick(note: Note) = launch {
-        val owner = withContext(Dispatchers.IO) {
-            manager.getOwner(note)
-        } as? Noteable
-
-        NoteDetailsDialog(
-            activity = activity,
-            owner = owner,
-            note = note,
-        ).show()
-    }
-
-    private fun onNoteEditClick(note: Note) = launch {
-        val owner = withContext(Dispatchers.IO) {
-            manager.getOwner(note)
-        } as? Noteable
-
-        NoteEditorDialog(
-            activity = activity,
-            owner = owner,
-            editingNote = note,
-            profileId = App.profileId,
-        ).show()
-    }
-
-    private fun onNoteAddClick(view: View?) {
-        NoteEditorDialog(
-            activity = activity,
-            owner = null,
-            editingNote = null,
-            profileId = App.profileId,
-        ).show()
-    }
-
-    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
-        if (!isAdded) return
-
-        activity.navView.apply {
-            bottomBar.apply {
-                fabEnable = true
-                fabExtendedText = getString(R.string.notes_action_add)
-                fabIcon = CommunityMaterial.Icon3.cmd_text_box_plus_outline
-            }
-
-            setFabOnClickListener(this@NotesFragment::onNoteAddClick)
-        }
-        activity.gainAttentionFAB()
-
+    override suspend fun onViewReady(savedInstanceState: Bundle?) {
         val adapter = NoteListAdapter(
             activity = activity,
             onNoteClick = this::onNoteClick,
@@ -153,4 +86,38 @@ class NotesFragment : Fragment(), CoroutineScope {
             adapter.getSearchField()?.applyTo(adapter)
         }
     }
+
+    private fun onNoteClick(note: Note) = launch {
+        val owner = withContext(Dispatchers.IO) {
+            manager.getOwner(note)
+        } as? Noteable
+
+        NoteDetailsDialog(
+            activity = activity,
+            owner = owner,
+            note = note,
+        ).show()
+    }
+
+    private fun onNoteEditClick(note: Note) = launch {
+        val owner = withContext(Dispatchers.IO) {
+            manager.getOwner(note)
+        } as? Noteable
+
+        NoteEditorDialog(
+            activity = activity,
+            owner = owner,
+            editingNote = note,
+            profileId = App.profileId,
+        ).show()
+    }
+
+    override suspend fun onFabClick() {
+        NoteEditorDialog(
+            activity = activity,
+            owner = null,
+            editingNote = null,
+            profileId = App.profileId,
+        ).show()
+    }
 }

app/src/main/java/pl/szczodrzynski/edziennik/ui/notifications/NotificationsListFragment.kt

@@ -6,64 +6,45 @@ package pl.szczodrzynski.edziennik.ui.notifications
 
 import android.app.Activity
 import android.content.Intent
-import android.os.AsyncTask
 import android.os.Bundle
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
 import android.widget.Toast
 import androidx.core.view.isVisible
-import androidx.fragment.app.Fragment
 import androidx.lifecycle.Observer
 import androidx.recyclerview.widget.LinearLayoutManager
 import com.mikepenz.iconics.typeface.library.community.material.CommunityMaterial
-import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.Job
-import pl.szczodrzynski.edziennik.*
+import kotlinx.coroutines.launch
+import pl.szczodrzynski.edziennik.MainActivity
+import pl.szczodrzynski.edziennik.R
 import pl.szczodrzynski.edziennik.databinding.NotificationsListFragmentBinding
 import pl.szczodrzynski.edziennik.ext.isNotNullNorEmpty
-import pl.szczodrzynski.edziennik.ext.startCoroutineTimer
+import pl.szczodrzynski.edziennik.ui.base.fragment.BaseFragment
 import pl.szczodrzynski.edziennik.utils.SimpleDividerItemDecoration
-import pl.szczodrzynski.edziennik.utils.Utils
 import pl.szczodrzynski.navlib.bottomsheet.items.BottomSheetPrimaryItem
 import timber.log.Timber
-import kotlin.coroutines.CoroutineContext
 
-class NotificationsListFragment : Fragment(), CoroutineScope {
-    companion object {
-        private const val TAG = "NotificationsListFragment"
-    }
+class NotificationsListFragment : BaseFragment<NotificationsListFragmentBinding, MainActivity>(
+    inflater = NotificationsListFragmentBinding::inflate,
+) {
 
-    private lateinit var app: App
-    private lateinit var activity: MainActivity
-    private lateinit var b: NotificationsListFragmentBinding
-
-    private val job: Job = Job()
-    override val coroutineContext: CoroutineContext
-        get() = job + Dispatchers.Main
-
-    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
-        activity = (getActivity() as MainActivity?) ?: return null
-        context ?: return null
-        app = activity.application as App
-        b = NotificationsListFragmentBinding.inflate(inflater)
-        return b.root
-    }
-
-    override fun onViewCreated(view: View, savedInstanceState: Bundle?) { startCoroutineTimer(100L) {
-        if (!isAdded) return@startCoroutineTimer
-
-        activity.bottomSheet.prependItems(
-                BottomSheetPrimaryItem(true)
-                        .withTitle(R.string.menu_remove_notifications)
-                        .withIcon(CommunityMaterial.Icon.cmd_delete_sweep_outline)
-                        .withOnClickListener(View.OnClickListener {
-                            activity.bottomSheet.close()
-                            AsyncTask.execute { app.db.notificationDao().clearAll() }
-                            Toast.makeText(activity, R.string.menu_remove_notifications_success, Toast.LENGTH_SHORT).show()
-                        }))
+    override fun getBottomSheetItems() = listOf(
+        BottomSheetPrimaryItem(true)
+            .withTitle(R.string.menu_remove_notifications)
+            .withIcon(CommunityMaterial.Icon.cmd_delete_sweep_outline)
+            .withOnClickListener {
+                activity.bottomSheet.close()
+                launch(Dispatchers.IO) {
+                    app.db.notificationDao().clearAll()
+                }
+                Toast.makeText(
+                    activity,
+                    R.string.menu_remove_notifications_success,
+                    Toast.LENGTH_SHORT
+                ).show()
+            }
+    )
 
+    override suspend fun onViewReady(savedInstanceState: Bundle?) {
         val adapter = NotificationsAdapter(activity) { notification ->
             val intent = Intent("android.intent.action.MAIN")
             notification.fillIntent(intent)
@@ -100,5 +81,5 @@ class NotificationsListFragment : Fragment(), CoroutineScope {
                 b.noData.isVisible = false
             }
         })
-    }}
+    }
 }

app/src/main/java/pl/szczodrzynski/edziennik/ui/settings/ProfileManagerFragment.kt

@@ -1,39 +1,14 @@
 package pl.szczodrzynski.edziennik.ui.settings
 
 import android.os.Bundle
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
-import androidx.fragment.app.Fragment
-import pl.szczodrzynski.edziennik.App
 import pl.szczodrzynski.edziennik.MainActivity
 import pl.szczodrzynski.edziennik.databinding.FragmentProfileManagerBinding
-import pl.szczodrzynski.edziennik.utils.Themes
-
-class ProfileManagerFragment : Fragment() {
-
-    private lateinit var app: App
-    private lateinit var activity: MainActivity
-    private lateinit var b: FragmentProfileManagerBinding
-/*
-    private val navController: NavController by lazy { Navigation.findNavController(b.root) }
-*/
-
-    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
-        activity = (getActivity() as MainActivity?) ?: return null
-        if (context == null)
-            return null
-        app = activity.application as App
-        // activity, context and profile is valid
-        b = FragmentProfileManagerBinding.inflate(inflater)
-        b.refreshLayout.setParent(activity.swipeRefreshLayout)
-        return b.root
-    }
-
-    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
-        if (app.profile == null || !isAdded)
-            return
+import pl.szczodrzynski.edziennik.ui.base.fragment.BaseFragment
 
+class ProfileManagerFragment : BaseFragment<FragmentProfileManagerBinding, MainActivity>(
+    inflater = FragmentProfileManagerBinding::inflate,
+) {
 
+    override suspend fun onViewReady(savedInstanceState: Bundle?) {
     }
 }