Add lucky number widget (#292)

.circleci/config.yml

@@ -7,11 +7,11 @@ references:
 
   container_config: &container_config
     docker:
-      - image: circleci/android:api-28-alpha
+      - image: circleci/android:api-28
     working_directory: *workspace_root
     environment:
       environment:
-        JVM_OPTS: -Xmx3200m
+        _JAVA_OPTS: -Xmx2048m
 
   attach_workspace: &attach_workspace
     attach_workspace:

app/src/main/AndroidManifest.xml

@@ -50,7 +50,16 @@
             android:name=".ui.modules.timetablewidget.TimetableWidgetConfigureActivity"
             android:noHistory="true"
             android:excludeFromRecents="true"
-            android:theme="@style/WulkanowyTheme.TimetableWidgetAccount">
+            android:theme="@style/WulkanowyTheme.WidgetAccountSwitcher">
+            <intent-filter>
+                <action android:name="android.appwidget.action.APPWIDGET_CONFIGURE" />
+            </intent-filter>
+        </activity>
+        <activity
+            android:name=".ui.modules.luckynumberwidget.LuckyNumberWidgetConfigureActivity"
+            android:noHistory="true"
+            android:excludeFromRecents="true"
+            android:theme="@style/WulkanowyTheme.WidgetAccountSwitcher">
             <intent-filter>
                 <action android:name="android.appwidget.action.APPWIDGET_CONFIGURE" />
             </intent-filter>
@@ -72,6 +81,17 @@
                 android:resource="@xml/provider_widget_timetable" />
         </receiver>
 
+        <receiver
+            android:name=".ui.modules.luckynumberwidget.LuckyNumberWidgetProvider"
+            android:label="@string/lucky_number_title">
+            <intent-filter>
+                <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
+            </intent-filter>
+            <meta-data
+                android:name="android.appwidget.provider"
+                android:resource="@xml/provider_widget_lucky_number" />
+        </receiver>
+
         <provider
             android:name="androidx.work.impl.WorkManagerInitializer"
             android:authorities="${applicationId}.workmanager-init"

app/src/main/java/io/github/wulkanowy/di/BuilderModule.kt

@@ -5,10 +5,12 @@ import dagger.android.ContributesAndroidInjector
 import io.github.wulkanowy.di.scopes.PerActivity
 import io.github.wulkanowy.ui.modules.login.LoginActivity
 import io.github.wulkanowy.ui.modules.login.LoginModule
+import io.github.wulkanowy.ui.modules.luckynumberwidget.LuckyNumberWidgetConfigureActivity
 import io.github.wulkanowy.ui.modules.main.MainActivity
 import io.github.wulkanowy.ui.modules.main.MainModule
 import io.github.wulkanowy.ui.modules.message.send.SendMessageActivity
 import io.github.wulkanowy.ui.modules.splash.SplashActivity
+import io.github.wulkanowy.ui.modules.luckynumberwidget.LuckyNumberWidgetProvider
 import io.github.wulkanowy.ui.modules.timetablewidget.TimetableWidgetConfigureActivity
 import io.github.wulkanowy.ui.modules.timetablewidget.TimetableWidgetProvider
 
@@ -35,4 +37,10 @@ internal abstract class BuilderModule {
 
     @ContributesAndroidInjector
     abstract fun bindTimetableWidgetProvider(): TimetableWidgetProvider
+
+    @ContributesAndroidInjector
+    abstract fun bindLuckyNumberWidgetAccountActivity(): LuckyNumberWidgetConfigureActivity
+
+    @ContributesAndroidInjector
+    abstract fun bindLuckyNumberWidgetProvider(): LuckyNumberWidgetProvider
 }

app/src/main/java/io/github/wulkanowy/ui/modules/luckynumberwidget/LuckyNumberWidgetConfigureActivity.kt

@@ -0,0 +1,77 @@
+package io.github.wulkanowy.ui.modules.luckynumberwidget
+
+import android.appwidget.AppWidgetManager.ACTION_APPWIDGET_UPDATE
+import android.appwidget.AppWidgetManager.EXTRA_APPWIDGET_ID
+import android.appwidget.AppWidgetManager.EXTRA_APPWIDGET_IDS
+import android.content.Intent
+import android.os.Bundle
+import android.widget.Toast
+import eu.davidea.flexibleadapter.FlexibleAdapter
+import eu.davidea.flexibleadapter.common.SmoothScrollLinearLayoutManager
+import eu.davidea.flexibleadapter.items.AbstractFlexibleItem
+import io.github.wulkanowy.R
+import io.github.wulkanowy.ui.base.BaseActivity
+import io.github.wulkanowy.ui.modules.login.LoginActivity
+import io.github.wulkanowy.utils.setOnItemClickListener
+import kotlinx.android.synthetic.main.activity_widget_configure.*
+import javax.inject.Inject
+
+class LuckyNumberWidgetConfigureActivity : BaseActivity(), LuckyNumberWidgetConfigureView {
+
+    @Inject
+    lateinit var configureAdapter: FlexibleAdapter<AbstractFlexibleItem<*>>
+
+    @Inject
+    lateinit var presenter: LuckyNumberWidgetConfigurePresenter
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setResult(RESULT_CANCELED)
+        setContentView(R.layout.activity_widget_configure)
+
+        intent.extras.let {
+            presenter.onAttachView(this, it?.getInt(EXTRA_APPWIDGET_ID))
+        }
+    }
+
+    override fun initView() {
+        widgetConfigureRecycler.apply {
+            adapter = configureAdapter
+            layoutManager = SmoothScrollLinearLayoutManager(context)
+        }
+        configureAdapter.setOnItemClickListener { presenter.onItemSelect(it) }
+    }
+
+    override fun updateData(data: List<LuckyNumberWidgetConfigureItem>) {
+        configureAdapter.updateDataSet(data)
+    }
+
+    override fun updateLuckyNumberWidget(widgetId: Int) {
+        sendBroadcast(Intent(this, LuckyNumberWidgetProvider::class.java)
+            .apply {
+                action = ACTION_APPWIDGET_UPDATE
+                putExtra(EXTRA_APPWIDGET_IDS, intArrayOf(widgetId))
+            })
+    }
+
+    override fun setSuccessResult(widgetId: Int) {
+        setResult(RESULT_OK, Intent().apply { putExtra(EXTRA_APPWIDGET_ID, widgetId) })
+    }
+
+    override fun showError(text: String, error: Throwable) {
+        Toast.makeText(this, text, Toast.LENGTH_LONG).show()
+    }
+
+    override fun finishView() {
+        finish()
+    }
+
+    override fun openLoginView() {
+        startActivity(LoginActivity.getStartIntent(this))
+    }
+
+    override fun onDestroy() {
+        super.onDestroy()
+        presenter.onDetachView()
+    }
+}

app/src/main/java/io/github/wulkanowy/ui/modules/luckynumberwidget/LuckyNumberWidgetConfigureItem.kt

@@ -0,0 +1,54 @@
+package io.github.wulkanowy.ui.modules.luckynumberwidget
+
+import android.annotation.SuppressLint
+import android.view.View
+import eu.davidea.flexibleadapter.FlexibleAdapter
+import eu.davidea.flexibleadapter.items.AbstractFlexibleItem
+import eu.davidea.flexibleadapter.items.IFlexible
+import eu.davidea.viewholders.FlexibleViewHolder
+import io.github.wulkanowy.R
+import io.github.wulkanowy.data.db.entities.Student
+import io.github.wulkanowy.ui.modules.timetablewidget.TimetableWidgetConfigureItem
+import kotlinx.android.extensions.LayoutContainer
+import kotlinx.android.synthetic.main.item_account.*
+
+class LuckyNumberWidgetConfigureItem(var student: Student, val isCurrent: Boolean) :
+    AbstractFlexibleItem<LuckyNumberWidgetConfigureItem.ViewHolder>() {
+
+    override fun getLayoutRes() = R.layout.item_account
+
+    override fun createViewHolder(view: View, adapter: FlexibleAdapter<IFlexible<*>>): ViewHolder {
+        return ViewHolder(view, adapter)
+    }
+
+    @SuppressLint("SetTextI18n")
+    override fun bindViewHolder(adapter: FlexibleAdapter<IFlexible<*>>, holder: ViewHolder, position: Int, payloads: MutableList<Any>) {
+        holder.apply {
+            accountItemName.text = "${student.studentName} ${student.className}"
+            accountItemSchool.text = student.schoolName
+            accountItemImage.setBackgroundResource(if (isCurrent) R.drawable.ic_account_circular_border else 0)
+        }
+    }
+
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+        if (javaClass != other?.javaClass) return false
+
+        other as TimetableWidgetConfigureItem
+
+        if (student != other.student) return false
+
+        return true
+    }
+
+    override fun hashCode(): Int {
+        var result = student.hashCode()
+        result = 31 * result + student.id.toInt()
+        return result
+    }
+
+    class ViewHolder(view: View, adapter: FlexibleAdapter<*>) : FlexibleViewHolder(view, adapter), LayoutContainer {
+        override val containerView: View
+            get() = contentView
+    }
+}

app/src/main/java/io/github/wulkanowy/ui/modules/luckynumberwidget/LuckyNumberWidgetConfigurePresenter.kt

@@ -0,0 +1,62 @@
+package io.github.wulkanowy.ui.modules.luckynumberwidget
+
+import eu.davidea.flexibleadapter.items.AbstractFlexibleItem
+import io.github.wulkanowy.data.db.SharedPrefHelper
+import io.github.wulkanowy.data.db.entities.Student
+import io.github.wulkanowy.data.repositories.student.StudentRepository
+import io.github.wulkanowy.ui.base.BasePresenter
+import io.github.wulkanowy.ui.base.ErrorHandler
+import io.github.wulkanowy.ui.modules.luckynumberwidget.LuckyNumberWidgetProvider.Companion.createWidgetKey
+import io.github.wulkanowy.utils.SchedulersProvider
+import javax.inject.Inject
+
+class LuckyNumberWidgetConfigurePresenter @Inject constructor(
+    private val errorHandler: ErrorHandler,
+    private val schedulers: SchedulersProvider,
+    private val studentRepository: StudentRepository,
+    private val sharedPref: SharedPrefHelper
+) : BasePresenter<LuckyNumberWidgetConfigureView>(errorHandler) {
+
+    private var appWidgetId: Int? = null
+
+    fun onAttachView(view: LuckyNumberWidgetConfigureView, appWidgetId: Int?) {
+        super.onAttachView(view)
+        this.appWidgetId = appWidgetId
+        view.initView()
+        loadData()
+    }
+
+    fun onItemSelect(item: AbstractFlexibleItem<*>) {
+        if (item is LuckyNumberWidgetConfigureItem) {
+            registerStudent(item.student)
+        }
+    }
+
+    private fun loadData() {
+        disposable.add(studentRepository.getSavedStudents(false)
+            .map { it to appWidgetId?.let { id -> sharedPref.getLong(createWidgetKey(id), 0) } }
+            .map { (students, currentStudentId) ->
+                students.map { student -> LuckyNumberWidgetConfigureItem(student, student.id == currentStudentId) }
+            }
+            .subscribeOn(schedulers.backgroundThread)
+            .observeOn(schedulers.mainThread)
+            .subscribe({
+                when {
+                    it.isEmpty() -> view?.openLoginView()
+                    it.size == 1 -> registerStudent(it.single().student)
+                    else -> view?.updateData(it)
+                }
+            }, { errorHandler.dispatch(it) }))
+    }
+
+    private fun registerStudent(student: Student) {
+        appWidgetId?.also {
+            sharedPref.putLong(createWidgetKey(it), student.id)
+            view?.apply {
+                updateLuckyNumberWidget(it)
+                setSuccessResult(it)
+            }
+        }
+        view?.finishView()
+    }
+}

app/src/main/java/io/github/wulkanowy/ui/modules/luckynumberwidget/LuckyNumberWidgetConfigureView.kt

@@ -0,0 +1,19 @@
+package io.github.wulkanowy.ui.modules.luckynumberwidget
+
+import io.github.wulkanowy.ui.base.BaseView
+import io.github.wulkanowy.ui.modules.timetablewidget.TimetableWidgetConfigureItem
+
+interface LuckyNumberWidgetConfigureView : BaseView {
+
+    fun initView()
+
+    fun updateData(data: List<LuckyNumberWidgetConfigureItem>)
+
+    fun updateLuckyNumberWidget(widgetId: Int)
+
+    fun setSuccessResult(widgetId: Int)
+
+    fun finishView()
+
+    fun openLoginView()
+}

app/src/main/java/io/github/wulkanowy/ui/modules/luckynumberwidget/LuckyNumberWidgetProvider.kt

@@ -0,0 +1,180 @@
+package io.github.wulkanowy.ui.modules.luckynumberwidget
+
+import android.annotation.TargetApi
+import android.app.PendingIntent
+import android.appwidget.AppWidgetManager
+import android.appwidget.AppWidgetManager.ACTION_APPWIDGET_DELETED
+import android.appwidget.AppWidgetManager.ACTION_APPWIDGET_OPTIONS_CHANGED
+import android.appwidget.AppWidgetManager.ACTION_APPWIDGET_UPDATE
+import android.appwidget.AppWidgetManager.EXTRA_APPWIDGET_ID
+import android.appwidget.AppWidgetManager.EXTRA_APPWIDGET_IDS
+import android.appwidget.AppWidgetManager.EXTRA_APPWIDGET_OPTIONS
+import android.appwidget.AppWidgetManager.OPTION_APPWIDGET_MAX_HEIGHT
+import android.appwidget.AppWidgetManager.OPTION_APPWIDGET_MAX_WIDTH
+import android.content.BroadcastReceiver
+import android.content.Context
+import android.content.Intent
+import android.os.Build
+import android.view.View.GONE
+import android.view.View.VISIBLE
+import android.widget.RemoteViews
+import dagger.android.AndroidInjection
+import io.github.wulkanowy.R
+import io.github.wulkanowy.data.db.SharedPrefHelper
+import io.github.wulkanowy.data.db.entities.LuckyNumber
+import io.github.wulkanowy.data.repositories.luckynumber.LuckyNumberRepository
+import io.github.wulkanowy.data.repositories.semester.SemesterRepository
+import io.github.wulkanowy.data.repositories.student.StudentRepository
+import io.github.wulkanowy.ui.modules.main.MainActivity
+import io.github.wulkanowy.ui.modules.main.MainActivity.Companion.EXTRA_START_MENU_INDEX
+import io.github.wulkanowy.utils.SchedulersProvider
+import io.reactivex.Maybe
+import timber.log.Timber
+import javax.inject.Inject
+
+class LuckyNumberWidgetProvider : BroadcastReceiver() {
+
+    @Inject
+    lateinit var studentRepository: StudentRepository
+
+    @Inject
+    lateinit var semesterRepository: SemesterRepository
+
+    @Inject
+    lateinit var luckyNumberRepository: LuckyNumberRepository
+
+    @Inject
+    lateinit var schedulers: SchedulersProvider
+
+    @Inject
+    lateinit var appWidgetManager: AppWidgetManager
+
+    @Inject
+    lateinit var sharedPref: SharedPrefHelper
+
+    companion object {
+        fun createWidgetKey(appWidgetId: Int) = "lucky_number_widget_$appWidgetId"
+    }
+
+    @TargetApi(Build.VERSION_CODES.JELLY_BEAN)
+    override fun onReceive(context: Context, intent: Intent) {
+        AndroidInjection.inject(this, context)
+        when (intent.action) {
+            ACTION_APPWIDGET_UPDATE -> onUpdate(context, intent)
+            ACTION_APPWIDGET_DELETED -> onDelete(intent)
+            ACTION_APPWIDGET_OPTIONS_CHANGED -> onOptionsChange(context, intent)
+        }
+    }
+
+    private fun onUpdate(context: Context, intent: Intent) {
+        intent.getIntArrayExtra(EXTRA_APPWIDGET_IDS).forEach { appWidgetId ->
+            RemoteViews(context.packageName, R.layout.widget_luckynumber).apply {
+                setTextViewText(R.id.luckyNumberWidgetNumber,
+                    getLuckyNumber(sharedPref.getLong(createWidgetKey(appWidgetId), 0), appWidgetId)?.luckyNumber?.toString() ?: "#"
+                )
+                setOnClickPendingIntent(R.id.luckyNumberWidgetContainer,
+                    PendingIntent.getActivity(context, 2, MainActivity.getStartIntent(context).apply {
+                        putExtra(EXTRA_START_MENU_INDEX, 4)
+                    }, PendingIntent.FLAG_UPDATE_CURRENT))
+            }.also {
+                setStyles(it, intent)
+                appWidgetManager.updateAppWidget(appWidgetId, it)
+            }
+        }
+    }
+
+    private fun onDelete(intent: Intent) {
+        intent.getIntExtra(EXTRA_APPWIDGET_ID, 0).let {
+            if (it != 0) sharedPref.delete(createWidgetKey(it))
+        }
+    }
+
+    private fun getLuckyNumber(studentId: Long, appWidgetId: Int): LuckyNumber? {
+        return try {
+            studentRepository.isStudentSaved()
+                .filter { true }
+                .flatMap { studentRepository.getSavedStudents().toMaybe() }
+                .flatMap { students ->
+                    students.singleOrNull { student -> student.id == studentId }
+                        .let { student ->
+                            if (student != null) {
+                                Maybe.just(student)
+                            } else {
+                                studentRepository.getCurrentStudent(false)
+                                    .toMaybe()
+                                    .doOnSuccess { sharedPref.putLong(createWidgetKey(appWidgetId), it.id) }
+                            }
+                        }
+                }
+                .flatMap { semesterRepository.getCurrentSemester(it).toMaybe() }
+                .flatMap { luckyNumberRepository.getLuckyNumber(it) }
+                .subscribeOn(schedulers.backgroundThread)
+                .blockingGet()
+        } catch (e: Exception) {
+            Timber.e(e, "An error has occurred in lucky number provider")
+            null
+        }
+    }
+
+    private fun onOptionsChange(context: Context, intent: Intent) {
+        intent.extras?.let { extras ->
+            RemoteViews(context.packageName, R.layout.widget_luckynumber).apply {
+                setStyles(this, intent)
+                appWidgetManager.updateAppWidget(extras.getInt(EXTRA_APPWIDGET_ID), this)
+            }
+        }
+    }
+
+    @TargetApi(Build.VERSION_CODES.JELLY_BEAN)
+    private fun setStyles(views: RemoteViews, intent: Intent) {
+        val options = intent.extras?.getBundle(EXTRA_APPWIDGET_OPTIONS)
+
+        val maxWidth = options?.getInt(OPTION_APPWIDGET_MAX_WIDTH) ?: 150
+        val maxHeight = options?.getInt(OPTION_APPWIDGET_MAX_HEIGHT) ?: 40
+
+        Timber.d("New luckynumber widget measurement: %dx%d", maxWidth, maxHeight)
+
+        when {
+            // 1x1
+            maxWidth < 150 && maxHeight < 110 -> {
+                Timber.d("Luckynumber widget size: 1x1")
+                views.run {
+                    setViewVisibility(R.id.luckyNumberWidgetImageTop, GONE)
+                    setViewVisibility(R.id.luckyNumberWidgetImageLeft, GONE)
+                    setViewVisibility(R.id.luckyNumberWidgetTitle, GONE)
+                    setViewVisibility(R.id.luckyNumberWidgetNumber, VISIBLE)
+                }
+            }
+            // 1x2
+            maxWidth < 150 && maxHeight > 110 -> {
+                Timber.d("Luckynumber widget size: 1x2")
+                views.run {
+                    setViewVisibility(R.id.luckyNumberWidgetImageTop, VISIBLE)
+                    setViewVisibility(R.id.luckyNumberWidgetImageLeft, GONE)
+                    setViewVisibility(R.id.luckyNumberWidgetTitle, GONE)
+                    setViewVisibility(R.id.luckyNumberWidgetNumber, VISIBLE)
+                }
+            }
+            // 2x1
+            maxWidth >= 150 && maxHeight <= 110 -> {
+                Timber.d("Luckynumber widget size: 2x1")
+                views.run {
+                    setViewVisibility(R.id.luckyNumberWidgetImageTop, GONE)
+                    setViewVisibility(R.id.luckyNumberWidgetImageLeft, VISIBLE)
+                    setViewVisibility(R.id.luckyNumberWidgetTitle, GONE)
+                    setViewVisibility(R.id.luckyNumberWidgetNumber, VISIBLE)
+                }
+            }
+            // 2x2 and bigger
+            else -> {
+                Timber.d("Luckynumber widget size: 2x2 and bigger")
+                views.run {
+                    setViewVisibility(R.id.luckyNumberWidgetImageTop, GONE)
+                    setViewVisibility(R.id.luckyNumberWidgetImageLeft, GONE)
+                    setViewVisibility(R.id.luckyNumberWidgetTitle, VISIBLE)
+                    setViewVisibility(R.id.luckyNumberWidgetNumber, VISIBLE)
+                }
+            }
+        }
+    }
+}

app/src/main/java/io/github/wulkanowy/ui/modules/timetablewidget/TimetableWidgetConfigureActivity.kt

@@ -15,7 +15,7 @@ import io.github.wulkanowy.ui.base.BaseActivity
 import io.github.wulkanowy.ui.modules.login.LoginActivity
 import io.github.wulkanowy.ui.modules.timetablewidget.TimetableWidgetProvider.Companion.EXTRA_FROM_PROVIDER
 import io.github.wulkanowy.utils.setOnItemClickListener
-import kotlinx.android.synthetic.main.activity_timetable_widget_configure.*
+import kotlinx.android.synthetic.main.activity_widget_configure.*
 import javax.inject.Inject
 
 class TimetableWidgetConfigureActivity : BaseActivity(), TimetableWidgetConfigureView {
@@ -29,7 +29,7 @@ class TimetableWidgetConfigureActivity : BaseActivity(), TimetableWidgetConfigur
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setResult(RESULT_CANCELED)
-        setContentView(R.layout.activity_timetable_widget_configure)
+        setContentView(R.layout.activity_widget_configure)
 
         intent.extras.let {
             presenter.onAttachView(this, it?.getInt(EXTRA_APPWIDGET_ID), it?.getBoolean(EXTRA_FROM_PROVIDER))
@@ -37,7 +37,7 @@ class TimetableWidgetConfigureActivity : BaseActivity(), TimetableWidgetConfigur
     }
 
     override fun initView() {
-        timetableWidgetConfigureRecycler.apply {
+        widgetConfigureRecycler.apply {
             adapter = configureAdapter
             layoutManager = SmoothScrollLinearLayoutManager(context)
         }

app/src/main/res/drawable/background_rounded_corner.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+    <solid android:color="#ffffffff" />
+    <corners android:radius="5dp" />
+</shape>

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

@@ -6,7 +6,7 @@
     android:layout_height="wrap_content">
 
     <androidx.appcompat.widget.AppCompatTextView
-        android:id="@+id/timetableWidgetConfigureTitle"
+        android:id="@+id/widgetConfigureTitle"
         android:layout_width="match_parent"
         android:layout_height="64dp"
         android:paddingStart="24dp"
@@ -20,10 +20,10 @@
         app:firstBaselineToTopHeight="40dp" />
 
     <androidx.recyclerview.widget.RecyclerView
-        android:id="@+id/timetableWidgetConfigureRecycler"
+        android:id="@+id/widgetConfigureRecycler"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:layout_below="@id/timetableWidgetConfigureTitle"
+        android:layout_below="@id/widgetConfigureTitle"
         android:layout_marginBottom="16dp"
         android:overScrollMode="never"
         tools:itemCount="3"

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

@@ -0,0 +1,63 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/luckyNumberWidgetContainer"
+    android:layout_width="fill_parent"
+    android:layout_height="fill_parent"
+    android:background="@drawable/background_rounded_corner"
+    android:gravity="center"
+    android:padding="10dp"
+    tools:context=".ui.modules.luckynumberwidget.LuckyNumberWidgetProvider">
+
+    <ImageView
+        android:id="@+id/luckyNumberWidgetImageTop"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_above="@id/luckyNumberWidgetNumber"
+        android:layout_centerHorizontal="true"
+        android:layout_marginBottom="20dp"
+        android:contentDescription="@string/lucky_number_title"
+        android:gravity="center"
+        android:src="@drawable/ic_widget_clover_24dp"
+        android:visibility="gone"
+        tools:visibility="visible" />
+
+    <TextView
+        android:id="@+id/luckyNumberWidgetTitle"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="0dp"
+        android:gravity="center"
+        android:labelFor="@id/luckyNumberWidgetImageTop"
+        android:text="@string/lucky_number_title"
+        android:textAlignment="center"
+        android:textColor="#8c8c8c"
+        android:textSize="22sp"
+        android:visibility="gone"
+        tools:visibility="visible" />
+
+    <ImageView
+        android:id="@+id/luckyNumberWidgetImageLeft"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_alignTop="@id/luckyNumberWidgetNumber"
+        android:contentDescription="@string/lucky_number_title"
+        android:src="@drawable/ic_widget_clover_24dp"
+        android:visibility="gone"
+        tools:visibility="visible" />
+
+    <TextView
+        android:id="@+id/luckyNumberWidgetNumber"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_below="@id/luckyNumberWidgetTitle"
+        android:layout_toEndOf="@id/luckyNumberWidgetImageLeft"
+        android:layout_toRightOf="@id/luckyNumberWidgetImageLeft"
+        android:gravity="center"
+        android:text="#"
+        android:textAlignment="center"
+        android:textColor="#404040"
+        android:textSize="34sp"
+        tools:ignore="HardcodedText"
+        tools:text="13" />
+</RelativeLayout>

app/src/main/res/values/api_endpoints.xml

@@ -14,6 +14,6 @@
         <item>https://edu.gdansk.pl</item>
         <item>https://umt.tarnow.pl</item>
         <item>https://resman.pl</item>
-        <item>https://fakelog.cf</item>
+        <item>http://fakelog.cf</item>
     </string-array>
 </resources>

app/src/main/res/values/styles.xml

@@ -41,7 +41,7 @@
         <item name="colorControlNormal">@android:color/white</item>
     </style>
 
-    <style name="WulkanowyTheme.TimetableWidgetAccount" parent="Theme.AppCompat.Light.Dialog">
+    <style name="WulkanowyTheme.WidgetAccountSwitcher" parent="Theme.AppCompat.Light.Dialog">
         <item name="windowActionBar">false</item>
         <item name="windowNoTitle">true</item>
         <item name="android:textColorPrimary">@android:color/primary_text_light</item>

app/src/main/res/xml/provider_widget_lucky_number.xml

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<appwidget-provider xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:configure="io.github.wulkanowy.ui.modules.luckynumberwidget.LuckyNumberWidgetConfigureActivity"
+    android:initialLayout="@layout/widget_luckynumber"
+    android:minWidth="110dp"
+    android:minHeight="40dp"
+    android:minResizeWidth="40dp"
+    android:minResizeHeight="40dp"
+    android:previewImage="@drawable/img_luckynumber_widget_preview"
+    android:resizeMode="horizontal|vertical"
+    android:updatePeriodMillis="3600000"
+    android:widgetCategory="home_screen"
+    tools:targetApi="jelly_bean_mr1" />

app/src/main/res/xml/provider_widget_timetable.xml

@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <appwidget-provider xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
     android:configure="io.github.wulkanowy.ui.modules.timetablewidget.TimetableWidgetConfigureActivity"
     android:initialLayout="@layout/widget_timetable"
     android:minWidth="250dp"
@@ -9,4 +10,5 @@
     android:previewImage="@drawable/img_timetable_widget_preview"
     android:resizeMode="horizontal|vertical"
     android:updatePeriodMillis="3600000"
-    android:widgetCategory="home_screen" />
+    android:widgetCategory="home_screen"
+    tools:targetApi="jelly_bean_mr1" />