[Architecture] Migrate homework to MVP

app/src/main/java/pl/szczodrzynski/edziennik/ui/modules/homework/HomeworkAdapter.java

@@ -1,132 +0,0 @@
-package pl.szczodrzynski.edziennik.ui.modules.homework;
-
-import android.content.Context;
-import android.graphics.PorterDuff;
-import android.graphics.PorterDuffColorFilter;
-import android.os.AsyncTask;
-import androidx.annotation.NonNull;
-import androidx.cardview.widget.CardView;
-import androidx.recyclerview.widget.RecyclerView;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.Button;
-import android.widget.TextView;
-
-import java.util.List;
-
-import pl.szczodrzynski.edziennik.App;
-import pl.szczodrzynski.edziennik.R;
-import pl.szczodrzynski.edziennik.data.db.modules.events.EventFull;
-import pl.szczodrzynski.edziennik.ui.dialogs.event.EventManualDialog;
-import pl.szczodrzynski.edziennik.ui.modules.home.HomeFragment;
-import pl.szczodrzynski.edziennik.utils.models.Date;
-
-import static pl.szczodrzynski.edziennik.utils.Utils.bs;
-
-public class HomeworkAdapter extends RecyclerView.Adapter<HomeworkAdapter.ViewHolder> {
-    private Context context;
-    private List<EventFull> homeworkList;
-
-    //getting the context and product list with constructor
-    public HomeworkAdapter(Context mCtx, List<EventFull> homeworkList) {
-        this.context = mCtx;
-        this.homeworkList = homeworkList;
-    }
-
-    @NonNull
-    @Override
-    public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
-        //inflating and returning our view holder
-        LayoutInflater inflater = LayoutInflater.from(context);
-        View view = inflater.inflate(R.layout.row_homework_item, parent, false);
-        return new ViewHolder(view);
-    }
-
-    public static String dayDiffString(Context context, int dayDiff) {
-        if (dayDiff > 0) {
-            if (dayDiff == 1) {
-                return context.getString(R.string.tomorrow);
-            }
-            else if (dayDiff == 2) {
-                return context.getString(R.string.the_day_after);
-            }
-            return HomeFragment.plural(context, R.plurals.time_till_days, Math.abs(dayDiff));
-        }
-        else if (dayDiff < 0) {
-            if (dayDiff == -1) {
-                return context.getString(R.string.yesterday);
-            }
-            else if (dayDiff == -2) {
-                return context.getString(R.string.the_day_before);
-            }
-            return context.getString(R.string.ago_format, HomeFragment.plural(context, R.plurals.time_till_days, Math.abs(dayDiff)));
-        }
-        return context.getString(R.string.today);
-    }
-
-    @Override
-    public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
-        App app = (App) context.getApplicationContext();
-
-        EventFull homework = homeworkList.get(position);
-
-        int diffDays = Date.diffDays(homework.eventDate, Date.getToday());
-
-        holder.homeworkItemHomeworkDate.setText(app.getString(R.string.date_relative_format, homework.eventDate.getFormattedString(), dayDiffString(context, diffDays)));
-        holder.homeworkItemTopic.setText(homework.topic);
-        holder.homeworkItemSubjectTeacher.setText(context.getString(R.string.homework_subject_teacher_format, bs(homework.subjectLongName), bs(homework.teacherFullName)));
-        holder.homeworkItemTeamDate.setText(context.getString(R.string.homework_team_date_format, bs(homework.teamName), Date.fromMillis(homework.addedDate).getFormattedStringShort()));
-
-        if (!homework.seen) {
-            holder.homeworkItemTopic.setBackground(context.getResources().getDrawable(R.drawable.bg_rounded_8dp));
-            holder.homeworkItemTopic.getBackground().setColorFilter(new PorterDuffColorFilter(0x692196f3, PorterDuff.Mode.MULTIPLY));
-            homework.seen = true;
-            AsyncTask.execute(() -> {
-                app.db.metadataDao().setSeen(App.profileId, homework, true);
-            });
-        }
-        else {
-            holder.homeworkItemTopic.setBackground(null);
-        }
-
-        holder.homeworkItemEdit.setVisibility((homework.addedManually ? View.VISIBLE : View.GONE));
-        holder.homeworkItemEdit.setOnClickListener(v -> {
-            new EventManualDialog(context).show(app, homework, null, null, EventManualDialog.DIALOG_HOMEWORK);
-        });
-
-        if (homework.sharedBy == null) {
-            holder.homeworkItemSharedBy.setVisibility(View.GONE);
-        }
-        else if (homework.sharedByName != null) {
-            holder.homeworkItemSharedBy.setText(app.getString(R.string.event_shared_by_format, (homework.sharedBy.equals("self") ? app.getString(R.string.event_shared_by_self) : homework.sharedByName)));
-        }
-    }
-
-    @Override
-    public int getItemCount() {
-        return homeworkList.size();
-    }
-
-    class ViewHolder extends RecyclerView.ViewHolder {
-
-        CardView homeworkItemCard;
-        TextView homeworkItemTopic;
-        TextView homeworkItemHomeworkDate;
-        TextView homeworkItemSharedBy;
-        TextView homeworkItemSubjectTeacher;
-        TextView homeworkItemTeamDate;
-        Button homeworkItemEdit;
-
-        ViewHolder(View itemView) {
-            super(itemView);
-            homeworkItemCard = itemView.findViewById(R.id.homeworkItemCard);
-            homeworkItemTopic = itemView.findViewById(R.id.homeworkItemTopic);
-            homeworkItemHomeworkDate = itemView.findViewById(R.id.homeworkItemHomeworkDate);
-            homeworkItemSharedBy = itemView.findViewById(R.id.homeworkItemSharedBy);
-            homeworkItemSubjectTeacher = itemView.findViewById(R.id.homeworkItemSubjectTeacher);
-            homeworkItemTeamDate = itemView.findViewById(R.id.homeworkItemTeamDate);
-            homeworkItemEdit = itemView.findViewById(R.id.homeworkItemEdit);
-        }
-    }
-}

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

@@ -1,84 +1,76 @@
 package pl.szczodrzynski.edziennik.ui.modules.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 androidx.viewpager.widget.ViewPager
 import com.mikepenz.iconics.typeface.library.community.material.CommunityMaterial
 import pl.szczodrzynski.edziennik.App
 import pl.szczodrzynski.edziennik.MainActivity
 import pl.szczodrzynski.edziennik.R
 import pl.szczodrzynski.edziennik.databinding.FragmentHomeworkBinding
-import pl.szczodrzynski.edziennik.data.db.modules.metadata.Metadata
+import pl.szczodrzynski.edziennik.ui.base.BaseFragment
 import pl.szczodrzynski.edziennik.ui.dialogs.event.EventManualDialog
+import pl.szczodrzynski.edziennik.ui.modules.homework.list.HomeworkListFragment
 import pl.szczodrzynski.edziennik.ui.modules.messages.MessagesFragment
 import pl.szczodrzynski.edziennik.utils.Themes
 import pl.szczodrzynski.navlib.bottomsheet.items.BottomSheetPrimaryItem
 import pl.szczodrzynski.navlib.bottomsheet.items.BottomSheetSeparatorItem
 
-class HomeworkFragment : Fragment() {
+class HomeworkFragment : BaseFragment<HomeworkPresenter>(), HomeworkView {
     companion object {
         var pageSelection = 0
     }
 
-    private lateinit var app: App
+    override lateinit var app: App
+
     private lateinit var activity: MainActivity
     private lateinit var b: FragmentHomeworkBinding
 
+    override val presenter: HomeworkPresenter = HomeworkPresenter()
+
+    override val markAsReadSuccessString: String
+        get() = getString(R.string.main_menu_mark_as_read_success)
+
+    override fun onActivityCreated(savedInstanceState: Bundle?) {
+        super.onActivityCreated(savedInstanceState)
+        presenter.onAttachView(this)
+    }
+
     override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
-        activity = (getActivity() as MainActivity?) ?: return null
-        if (context == null)
-            return null
+        activity = (getActivity() as MainActivity)
         app = activity.application as App
+
         context!!.theme.applyStyle(Themes.appTheme, true)
         if (app.profile == null)
             return inflater.inflate(R.layout.fragment_loading, container, false)
-        // activity, context and profile is valid
         b = FragmentHomeworkBinding.inflate(inflater)
-        b.refreshLayout.setParent(activity.swipeRefreshLayout)
         return b.root
     }
 
-    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+    override fun initView() {
         // TODO check if app, activity, b can be null
         if (app.profile == null || !isAdded)
             return
 
+        b.refreshLayout.setParent(activity.swipeRefreshLayout)
+
         activity.bottomSheet.prependItems(
                 BottomSheetPrimaryItem(true)
-                .withTitle(R.string.menu_add_event)
-                .withDescription(R.string.menu_add_event_desc)
-                .withIcon(CommunityMaterial.Icon.cmd_calendar_plus)
-                .withOnClickListener(View.OnClickListener {
-                    activity.bottomSheet.close()
-                    EventManualDialog(activity).show(app, null, null, null, EventManualDialog.DIALOG_HOMEWORK)
-                }),
-        BottomSheetSeparatorItem(true),
-        BottomSheetPrimaryItem(true)
-                .withTitle(R.string.menu_mark_as_read)
-                .withIcon(CommunityMaterial.Icon.cmd_eye_check)
-                .withOnClickListener(View.OnClickListener {
-                    activity.bottomSheet.close()
-                    AsyncTask.execute { app.db.metadataDao().setAllSeen(App.profileId, Metadata.TYPE_HOMEWORK, true) }
-                    Toast.makeText(activity, R.string.main_menu_mark_as_read_success, Toast.LENGTH_SHORT).show()
-                }))
+                        .withTitle(R.string.menu_add_event)
+                        .withDescription(R.string.menu_add_event_desc)
+                        .withIcon(CommunityMaterial.Icon.cmd_calendar_plus)
+                        .withOnClickListener(View.OnClickListener { presenter.onAddEventClick() }),
+                BottomSheetSeparatorItem(true),
+                BottomSheetPrimaryItem(true)
+                        .withTitle(R.string.menu_mark_as_read)
+                        .withIcon(CommunityMaterial.Icon.cmd_eye_check)
+                        .withOnClickListener(View.OnClickListener { presenter.onMarkAsReadClick() }))
 
         b.viewPager.adapter = MessagesFragment.Adapter(childFragmentManager).also { adapter ->
-            adapter.addFragment(HomeworkListFragment().also { fragment ->
-                fragment.arguments = Bundle().also {  args ->
-                    args.putInt("homeworkDate", HomeworkDate.CURRENT)
-                }
-            }, getString(R.string.homework_tab_current))
-
-            adapter.addFragment(HomeworkListFragment().also { fragment ->
-                fragment.arguments = Bundle().also {  args ->
-                    args.putInt("homeworkDate", HomeworkDate.PAST)
-                }
-            }, getString(R.string.homework_tab_past))
+            adapter.addFragment(HomeworkListFragment.newInstance(HomeworkDate.CURRENT), getString(R.string.homework_tab_current))
+            adapter.addFragment(HomeworkListFragment.newInstance(HomeworkDate.PAST), getString(R.string.homework_tab_past))
         }
 
         b.viewPager.currentItem = pageSelection
@@ -86,9 +78,7 @@ class HomeworkFragment : Fragment() {
         b.viewPager.addOnPageChangeListener(object : ViewPager.OnPageChangeListener {
             override fun onPageScrollStateChanged(state: Int) {}
             override fun onPageScrolled(position: Int, positionOffset: Float, positionOffsetPixels: Int) {}
-            override fun onPageSelected(position: Int) {
-                pageSelection = position
-            }
+            override fun onPageSelected(position: Int) = presenter.onPageSelected(position)
         })
 
         b.tabLayout.setupWithViewPager(b.viewPager)
@@ -96,11 +86,21 @@ class HomeworkFragment : Fragment() {
         activity.navView.bottomBar.fabEnable = true
         activity.navView.bottomBar.fabExtendedText = getString(R.string.add)
         activity.navView.bottomBar.fabIcon = CommunityMaterial.Icon2.cmd_plus
-        activity.navView.setFabOnClickListener(View.OnClickListener {
-            EventManualDialog(activity).show(app, null, null, null, EventManualDialog.DIALOG_HOMEWORK)
-        })
+        activity.navView.setFabOnClickListener(View.OnClickListener { presenter.onHomeworkAddFabClick() })
 
         activity.gainAttention()
         activity.gainAttentionFAB()
     }
+
+    override fun setPageSelection(position: Int) {
+        pageSelection = position
+    }
+
+    override fun closeBottomSheet() {
+        activity.bottomSheet.close()
+    }
+
+    override fun showAddHomeworkDialog() {
+        EventManualDialog(activity).show(app, null, null, null, EventManualDialog.DIALOG_HOMEWORK)
+    }
 }

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

@@ -1,77 +0,0 @@
-package pl.szczodrzynski.edziennik.ui.modules.homework
-
-import android.os.Bundle
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
-import androidx.fragment.app.Fragment
-import androidx.lifecycle.Observer
-import androidx.recyclerview.widget.LinearLayoutManager
-import pl.szczodrzynski.edziennik.App
-import pl.szczodrzynski.edziennik.MainActivity
-import pl.szczodrzynski.edziennik.R
-import pl.szczodrzynski.edziennik.databinding.HomeworkListBinding
-import pl.szczodrzynski.edziennik.data.db.modules.events.Event
-import pl.szczodrzynski.edziennik.getInt
-import pl.szczodrzynski.edziennik.utils.models.Date
-import pl.szczodrzynski.edziennik.utils.Themes
-
-class HomeworkListFragment : Fragment() {
-
-    private lateinit var app: App
-    private lateinit var activity: MainActivity
-    private lateinit var b: HomeworkListBinding
-
-    private var homeworkDate = HomeworkDate.CURRENT
-
-    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
-        context!!.theme.applyStyle(Themes.appTheme, true)
-        if (app.profile == null)
-            return inflater.inflate(R.layout.fragment_loading, container, false)
-        // activity, context and profile is valid
-        b = HomeworkListBinding.inflate(inflater)
-        return b.root
-    }
-
-    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
-        // TODO check if app, activity, b can be null
-        if (app.profile == null || !isAdded)
-            return
-
-        if (arguments != null) {
-            homeworkDate = arguments.getInt("homeworkDate", HomeworkDate.CURRENT)
-        }
-
-        val layoutManager = LinearLayoutManager(context)
-        layoutManager.reverseLayout = true
-        layoutManager.stackFromEnd = true
-
-        b.homeworkView.setHasFixedSize(true)
-        b.homeworkView.layoutManager = layoutManager
-
-        val filter = when(homeworkDate) {
-            HomeworkDate.CURRENT -> "eventDate > '" + Date.getToday().stringY_m_d + "'"
-            else -> "eventDate <= '" + Date.getToday().stringY_m_d + "'"
-        }
-
-        app.db.eventDao()
-                .getAllByType(App.profileId, Event.TYPE_HOMEWORK, filter)
-                .observe(this, Observer { homeworkList ->
-                    if (app.profile == null || !isAdded) return@Observer
-
-                    if (homeworkList != null && homeworkList.size > 0) {
-                        val adapter = HomeworkAdapter(context, homeworkList)
-                        b.homeworkView.adapter = adapter
-                        b.homeworkView.visibility = View.VISIBLE
-                        b.homeworkNoData.visibility = View.GONE
-                    } else {
-                        b.homeworkView.visibility = View.GONE
-                        b.homeworkNoData.visibility = View.VISIBLE
-                    }
-                })
-    }
-}

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

@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) Kacper Ziubryniewicz 2019-11-4
+ */
+
+package pl.szczodrzynski.edziennik.ui.modules.homework
+
+import android.os.AsyncTask
+import pl.szczodrzynski.edziennik.App
+import pl.szczodrzynski.edziennik.data.db.modules.metadata.Metadata
+import pl.szczodrzynski.edziennik.ui.base.BasePresenter
+
+class HomeworkPresenter : BasePresenter<HomeworkView>() {
+
+    override fun onAttachView(view: HomeworkView) {
+        super.onAttachView(view)
+        view.initView()
+    }
+
+    fun onPageSelected(position: Int) {
+        view?.setPageSelection(position)
+    }
+
+    fun onAddEventClick() {
+        view?.apply {
+            closeBottomSheet()
+            showAddHomeworkDialog()
+        }
+    }
+
+    fun onMarkAsReadClick() {
+        view?.apply {
+            closeBottomSheet()
+            AsyncTask.execute {
+                app.db.metadataDao().setAllSeen(App.profileId, Metadata.TYPE_HOMEWORK, true)
+            }
+            showMessage(markAsReadSuccessString)
+        }
+    }
+
+    fun onHomeworkAddFabClick() {
+        view?.showAddHomeworkDialog()
+    }
+}

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

@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) Kacper Ziubryniewicz 2019-11-4
+ */
+
+package pl.szczodrzynski.edziennik.ui.modules.homework
+
+import pl.szczodrzynski.edziennik.App
+import pl.szczodrzynski.edziennik.ui.base.BaseView
+
+interface HomeworkView : BaseView {
+
+    var app: App
+
+    val markAsReadSuccessString: String
+
+    fun initView()
+
+    fun closeBottomSheet()
+
+    fun showAddHomeworkDialog()
+
+    fun setPageSelection(position: Int)
+}

app/src/main/java/pl/szczodrzynski/edziennik/ui/modules/homework/list/HomeworkListAdapter.kt

@@ -0,0 +1,108 @@
+/*
+ * Copyright (c) Kacper Ziubryniewicz 2019-11-4
+ */
+
+package pl.szczodrzynski.edziennik.ui.modules.homework.list
+
+import android.content.res.Resources
+import android.graphics.PorterDuff
+import android.graphics.PorterDuffColorFilter
+import android.graphics.drawable.Drawable
+import android.os.AsyncTask
+import android.view.LayoutInflater
+import android.view.View.GONE
+import android.view.View.VISIBLE
+import android.view.ViewGroup
+import androidx.core.content.ContextCompat
+import androidx.databinding.DataBindingUtil
+import androidx.recyclerview.widget.RecyclerView
+import pl.szczodrzynski.edziennik.App
+import pl.szczodrzynski.edziennik.R
+import pl.szczodrzynski.edziennik.data.db.modules.events.EventFull
+import pl.szczodrzynski.edziennik.databinding.RowHomeworkItemBinding
+import pl.szczodrzynski.edziennik.utils.Utils.bs
+import pl.szczodrzynski.edziennik.utils.models.Date
+import kotlin.math.abs
+
+class HomeworkListAdapter : RecyclerView.Adapter<HomeworkListAdapter.ViewHolder>() {
+
+    val homeworkList: MutableList<EventFull> = mutableListOf()
+    lateinit var onItemEditClick: (homework: EventFull) -> Unit
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
+        val inflater = LayoutInflater.from(parent.context)
+        val b: RowHomeworkItemBinding = DataBindingUtil.inflate(inflater, R.layout.row_homework_item, parent, false)
+        return ViewHolder(b)
+    }
+
+    override fun onBindViewHolder(holder: ViewHolder, position: Int) {
+        val homework = homeworkList[position]
+
+        holder.apply {
+            val diffDaysString = dateDiffString(Date.diffDays(homework.eventDate, Date.getToday()))
+
+            b.homeworkItemHomeworkDate.text = getString(R.string.date_relative_format, homework.eventDate.formattedString, diffDaysString)
+            b.homeworkItemTopic.text = homework.topic
+            b.homeworkItemSubjectTeacher.text = getString(R.string.homework_subject_teacher_format, bs(homework.subjectLongName), bs(homework.teacherFullName))
+            b.homeworkItemTeamDate.text = getString(R.string.homework_team_date_format, bs(homework.teamName), Date.fromMillis(homework.addedDate).formattedStringShort)
+
+            when {
+                !homework.seen -> {
+                    b.homeworkItemTopic.apply {
+                        background = getDrawable(R.drawable.bg_rounded_8dp)
+                        background.colorFilter = PorterDuffColorFilter(0x692196f3, PorterDuff.Mode.MULTIPLY)
+                    }
+
+                    homework.seen = true
+                    AsyncTask.execute {
+                        app.db.metadataDao().setSeen(App.profileId, homework, true)
+                    }
+                }
+                else -> b.homeworkItemTopic.background = null
+            }
+
+            b.homeworkItemEdit.apply {
+                visibility = if (homework.addedManually) VISIBLE else GONE
+                setOnClickListener { onItemEditClick(homework) }
+            }
+
+            b.homeworkItemSharedBy.apply {
+                when {
+                    homework.sharedBy == null -> visibility = GONE
+                    homework.sharedByName != null -> text = getString(R.string.event_shared_by_format,
+                            when (homework.sharedBy == "self") {
+                                true -> getString(R.string.event_shared_by_self)
+                                else -> homework.sharedByName
+                            })
+                }
+            }
+        }
+    }
+
+    override fun getItemCount() = homeworkList.size
+
+    class ViewHolder(val b: RowHomeworkItemBinding) : RecyclerView.ViewHolder(b.root) {
+        fun getString(resId: Int): String = itemView.context.getString(resId)
+        fun getString(resId: Int, vararg formatArgs: Any): String = itemView.context.getString(resId, *formatArgs)
+        fun getDrawable(resId: Int): Drawable? = ContextCompat.getDrawable(itemView.context, resId)
+
+        val app: App get() = itemView.context.applicationContext as App
+        val resources: Resources get() = itemView.context.resources
+
+        fun dateDiffString(diff: Int): String {
+            return when {
+                diff > 0 -> when (diff) {
+                    1 -> getString(R.string.tomorrow)
+                    2 -> getString(R.string.the_day_after)
+                    else -> resources.getQuantityString(R.plurals.time_till_days, abs(diff), abs(diff))
+                }
+                diff < 0 -> when (diff) {
+                    -1 -> getString(R.string.yesterday)
+                    -2 -> getString(R.string.the_day_before)
+                    else -> getString(R.string.ago_format, resources.getQuantityString(R.plurals.time_till_days, abs(diff), abs(diff)))
+                }
+                else -> getString(R.string.today)
+            }
+        }
+    }
+}

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

@@ -0,0 +1,104 @@
+/*
+ * Copyright (c) Kacper Ziubryniewicz 2019-11-4
+ */
+
+package pl.szczodrzynski.edziennik.ui.modules.homework.list
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.View.GONE
+import android.view.View.VISIBLE
+import android.view.ViewGroup
+import androidx.lifecycle.Lifecycle
+import androidx.recyclerview.widget.LinearLayoutManager
+import pl.szczodrzynski.edziennik.App
+import pl.szczodrzynski.edziennik.MainActivity
+import pl.szczodrzynski.edziennik.R
+import pl.szczodrzynski.edziennik.data.db.modules.events.EventFull
+import pl.szczodrzynski.edziennik.databinding.HomeworkListBinding
+import pl.szczodrzynski.edziennik.ui.base.BaseFragment
+import pl.szczodrzynski.edziennik.ui.dialogs.event.EventManualDialog
+import pl.szczodrzynski.edziennik.utils.Themes
+
+class HomeworkListFragment : BaseFragment<HomeworkListPresenter>(), HomeworkListView {
+
+    override lateinit var app: App
+
+    private lateinit var activity: MainActivity
+    private lateinit var b: HomeworkListBinding
+
+    private lateinit var homeworkAdapter: HomeworkListAdapter
+
+    override val presenter: HomeworkListPresenter = HomeworkListPresenter()
+
+    override val viewLifecycle: Lifecycle
+        get() = lifecycle
+
+    companion object {
+        private const val ARGUMENT_KEY = "homeworkDate"
+
+        fun newInstance(homeworkDate: Int) = HomeworkListFragment().apply {
+            arguments = Bundle().apply { putInt(ARGUMENT_KEY, homeworkDate) }
+        }
+    }
+
+    override fun onActivityCreated(savedInstanceState: Bundle?) {
+        super.onActivityCreated(savedInstanceState)
+        presenter.onAttachView(this, arguments?.getInt(ARGUMENT_KEY))
+    }
+
+    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
+        context!!.theme.applyStyle(Themes.appTheme, true)
+        if (app.profile == null)
+            return inflater.inflate(R.layout.fragment_loading, container, false)
+        // activity, context and profile is valid
+        b = HomeworkListBinding.inflate(inflater)
+        return b.root
+    }
+
+    override fun initView() {
+        // TODO check if app, activity, b can be null
+        if (app.profile == null || !isAdded)
+            return
+
+        val layoutManager = LinearLayoutManager(context)
+        layoutManager.reverseLayout = true
+        layoutManager.stackFromEnd = true
+
+        homeworkAdapter = HomeworkListAdapter()
+        homeworkAdapter.onItemEditClick = presenter::onItemEditClick
+
+        b.homeworkView.apply {
+            setHasFixedSize(true)
+            this.layoutManager = layoutManager
+            adapter = homeworkAdapter
+        }
+    }
+
+    override fun updateData(data: List<EventFull>) {
+        homeworkAdapter.apply {
+            homeworkList.apply {
+                clear()
+                addAll(data)
+            }
+            notifyDataSetChanged()
+        }
+    }
+
+    override fun showContent(show: Boolean) {
+        b.homeworkView.visibility = if (show) VISIBLE else GONE
+    }
+
+    override fun showNoData(show: Boolean) {
+        b.homeworkNoData.visibility = if (show) VISIBLE else GONE
+    }
+
+    override fun showEditHomeworkDialog(homework: EventFull) {
+        EventManualDialog(context).show(app, homework, null, null, EventManualDialog.DIALOG_HOMEWORK)
+    }
+}

app/src/main/java/pl/szczodrzynski/edziennik/ui/modules/homework/list/HomeworkListPresenter.kt

@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) Kacper Ziubryniewicz 2019-11-4
+ */
+
+package pl.szczodrzynski.edziennik.ui.modules.homework.list
+
+import pl.szczodrzynski.edziennik.App
+import pl.szczodrzynski.edziennik.data.db.modules.events.Event
+import pl.szczodrzynski.edziennik.data.db.modules.events.EventFull
+import pl.szczodrzynski.edziennik.ui.base.BasePresenter
+import pl.szczodrzynski.edziennik.ui.modules.homework.HomeworkDate
+import pl.szczodrzynski.edziennik.utils.models.Date
+
+class HomeworkListPresenter : BasePresenter<HomeworkListView>() {
+
+    fun onAttachView(view: HomeworkListView, homeworkDate: Int?) {
+        super.onAttachView(view)
+        view.initView()
+        loadData(homeworkDate ?: HomeworkDate.CURRENT)
+    }
+
+    private fun loadData(homeworkDate: Int) {
+        val today = Date.getToday().stringY_m_d
+
+        val filter = when (homeworkDate) {
+            HomeworkDate.CURRENT -> "eventDate > '$today'"
+            else -> "eventDate <= '$today'"
+        }
+
+        view?.run {
+            app.db.eventDao()
+                    .getAllByType(App.profileId, Event.TYPE_HOMEWORK, filter)
+                    .observe({ viewLifecycle }, { homeworkList ->
+                        if (app.profile == null) return@observe
+
+                        if (homeworkList != null && homeworkList.size > 0) {
+                            updateData(homeworkList)
+                            showContent(true)
+                            showNoData(false)
+                        } else {
+                            showContent(false)
+                            showNoData(true)
+                        }
+                    })
+        }
+    }
+
+    fun onItemEditClick(homework: EventFull) {
+        view?.showEditHomeworkDialog(homework)
+    }
+}

app/src/main/java/pl/szczodrzynski/edziennik/ui/modules/homework/list/HomeworkListView.kt

@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) Kacper Ziubryniewicz 2019-11-4
+ */
+
+package pl.szczodrzynski.edziennik.ui.modules.homework.list
+
+import androidx.lifecycle.Lifecycle
+import pl.szczodrzynski.edziennik.App
+import pl.szczodrzynski.edziennik.data.db.modules.events.EventFull
+import pl.szczodrzynski.edziennik.ui.base.BaseView
+
+interface HomeworkListView : BaseView {
+
+    var app: App
+
+    val viewLifecycle: Lifecycle
+
+    fun initView()
+
+    fun updateData(data: List<EventFull>)
+
+    fun showContent(show: Boolean)
+
+    fun showNoData(show: Boolean)
+
+    fun showEditHomeworkDialog(homework: EventFull)
+}

app/src/main/res/layout/row_homework_item.xml

@@ -1,113 +1,116 @@
 <?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<layout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:orientation="vertical">
+    xmlns:tools="http://schemas.android.com/tools">
 
-    <com.google.android.material.card.MaterialCardView
-        android:id="@+id/homeworkItemCard"
+    <LinearLayout
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:layout_margin="8dp"
-        app:cardElevation="4dp"
-        app:cardCornerRadius="5dp"
-        android:background="?selectableItemBackground"
-        android:paddingLeft="10dp"
-        android:paddingTop="5dp"
-        android:paddingRight="10dp"
-        android:paddingBottom="3dp">
+        android:orientation="vertical">
 
-        <LinearLayout
+        <com.google.android.material.card.MaterialCardView
+            android:id="@+id/homeworkItemCard"
             android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:orientation="vertical"
-            android:padding="8dp">
+            android:layout_height="wrap_content"
+            android:layout_margin="8dp"
+            android:background="?selectableItemBackground"
+            android:paddingLeft="10dp"
+            android:paddingTop="5dp"
+            android:paddingRight="10dp"
+            android:paddingBottom="3dp"
+            app:cardCornerRadius="5dp"
+            app:cardElevation="4dp">
 
             <LinearLayout
                 android:layout_width="match_parent"
                 android:layout_height="match_parent"
-                android:orientation="horizontal">
+                android:orientation="vertical"
+                android:padding="8dp">
 
-                <TextView
-                    android:id="@+id/homeworkItemHomeworkDate"
-                    android:layout_width="wrap_content"
-                    android:layout_height="wrap_content"
-                    android:layout_marginRight="16dp"
-                    android:textAppearance="@style/TextAppearance.AppCompat.Small"
-                    android:textSize="16sp"
-                    tools:text="homeworkDate"
-                    android:layout_marginEnd="16dp" />
+                <LinearLayout
+                    android:layout_width="match_parent"
+                    android:layout_height="match_parent"
+                    android:orientation="horizontal">
 
-                <com.mikepenz.iconics.view.IconicsTextView
-                    android:id="@+id/homeworkItemSharedBy"
+                    <TextView
+                        android:id="@+id/homeworkItemHomeworkDate"
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:layout_marginEnd="16dp"
+                        android:layout_marginRight="16dp"
+                        android:textAppearance="@style/TextAppearance.AppCompat.Small"
+                        android:textSize="16sp"
+                        tools:text="homeworkDate" />
+
+                    <com.mikepenz.iconics.view.IconicsTextView
+                        android:id="@+id/homeworkItemSharedBy"
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content"
+                        android:layout_marginStart="8dp"
+                        android:layout_marginEnd="8dp"
+                        android:ellipsize="end"
+                        android:gravity="end"
+                        android:maxLines="1"
+                        app:layout_constraintEnd_toEndOf="parent"
+                        app:layout_constraintStart_toEndOf="@+id/constraintLayout"
+                        app:layout_constraintTop_toBottomOf="@+id/eventListItemTopic"
+                        tools:text="{cmd-share-variant} przez" />
+                </LinearLayout>
+
+                <LinearLayout
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
-                    android:layout_marginStart="8dp"
-                    android:layout_marginEnd="8dp"
-                    android:ellipsize="end"
-                    android:gravity="end"
-                    android:maxLines="1"
-                    app:layout_constraintEnd_toEndOf="parent"
-                    app:layout_constraintStart_toEndOf="@+id/constraintLayout"
-                    app:layout_constraintTop_toBottomOf="@+id/eventListItemTopic"
-                    tools:text="{cmd-share-variant} przez" />
-            </LinearLayout>
+                    android:orientation="horizontal">
 
-            <LinearLayout
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:orientation="horizontal">
+                    <TextView
+                        android:id="@+id/homeworkItemTopic"
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content"
+                        android:layout_weight="1"
+                        android:autoLink="all"
+                        android:paddingBottom="4dp"
+                        android:textIsSelectable="true"
+                        android:textSize="18sp"
+                        tools:text="topic???" />
 
-                <TextView
-                    android:id="@+id/homeworkItemTopic"
+                    <com.google.android.material.button.MaterialButton
+                        android:id="@+id/homeworkItemEdit"
+                        style="@style/Widget.MaterialComponents.Button.OutlinedButton"
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:layout_weight="0"
+                        android:minHeight="0dp"
+                        android:text="@string/homework_edit"
+                        android:visibility="visible" /><!--android:minWidth="0dp"
+                        android:minHeight="0dp"-->
+                </LinearLayout>
+
+                <LinearLayout
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
-                    android:layout_weight="1"
-                    android:paddingBottom="4dp"
-                    android:textSize="18sp"
-                    android:textIsSelectable="true"
-                    android:autoLink="all"
-                    tools:text="topic???" />
+                    android:orientation="horizontal">
 
-                <com.google.android.material.button.MaterialButton
-                    android:id="@+id/homeworkItemEdit"
-                    style="@style/Widget.MaterialComponents.Button.OutlinedButton"
-                    android:layout_width="wrap_content"
-                    android:layout_height="wrap_content"
-                    android:layout_weight="0"
-                    android:minHeight="0dp"
-                    android:text="@string/homework_edit"
-                    android:visibility="visible" /><!--android:minWidth="0dp"
-                    android:minHeight="0dp"-->
+                    <TextView
+                        android:id="@+id/homeworkItemSubjectTeacher"
+                        android:layout_width="0dp"
+                        android:layout_height="wrap_content"
+                        android:layout_marginRight="8dp"
+                        android:layout_weight="1"
+                        android:ellipsize="end"
+                        android:singleLine="true"
+                        android:textAppearance="@style/TextAppearance.AppCompat.Small"
+                        tools:text="subjectName, teacherName" />
+
+                    <TextView
+                        android:id="@+id/homeworkItemTeamDate"
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:textAppearance="@style/TextAppearance.AppCompat.Small"
+                        tools:text="teamName addedDate" />
+                </LinearLayout>
             </LinearLayout>
 
-            <LinearLayout
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:orientation="horizontal">
+        </com.google.android.material.card.MaterialCardView>
 
-                <TextView
-                    android:id="@+id/homeworkItemSubjectTeacher"
-                    android:layout_width="0dp"
-                    android:layout_height="wrap_content"
-                    android:layout_marginRight="8dp"
-                    android:layout_weight="1"
-                    android:ellipsize="end"
-                    android:singleLine="true"
-                    android:textAppearance="@style/TextAppearance.AppCompat.Small"
-                    tools:text="subjectName, teacherName" />
-
-                <TextView
-                    android:id="@+id/homeworkItemTeamDate"
-                    android:layout_width="wrap_content"
-                    android:layout_height="wrap_content"
-                    android:textAppearance="@style/TextAppearance.AppCompat.Small"
-                    tools:text="teamName addedDate" />
-            </LinearLayout>
-        </LinearLayout>
-
-    </com.google.android.material.card.MaterialCardView>
-
-</LinearLayout>
+    </LinearLayout>
+</layout>