Merge "[Partial Screensharing] Calculate recents thumbnail size" into tm-qpr-dev am: c0c99d69fb

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/20066070

Change-Id: I10f664b3b825f093ed36bb17a30e496eb16c1199
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

packages/SystemUI/res/layout/media_projection_app_selector.xml

@@ -49,6 +49,8 @@
             android:layout_height="wrap_content"
             android:layout_width="wrap_content"
             android:textAppearance="?android:attr/textAppearanceLarge"
+            android:focusable="false"
+            android:clickable="false"
             android:gravity="center"
             android:paddingBottom="@*android:dimen/chooser_view_spacing"
             android:paddingLeft="24dp"

packages/SystemUI/res/layout/media_projection_recent_tasks.xml

@@ -23,8 +23,9 @@
     >
 
     <FrameLayout
+        android:id="@+id/media_projection_recent_tasks_container"
         android:layout_width="match_parent"
-        android:layout_height="256dp">
+        android:layout_height="wrap_content">
 
         <androidx.recyclerview.widget.RecyclerView
             android:id="@+id/media_projection_recent_tasks_recycler"

packages/SystemUI/res/layout/media_projection_task_item.xml

@@ -18,7 +18,9 @@
     android:layout_height="wrap_content"
     android:layout_gravity="center"
     android:gravity="center"
-    android:orientation="vertical">
+    android:orientation="vertical"
+    android:clickable="true"
+    >
 
     <ImageView
         android:id="@+id/task_icon"
@@ -27,12 +29,12 @@
         android:layout_margin="8dp"
         android:importantForAccessibility="no" />
 
-    <!-- TODO(b/240924926) use a custom view that will handle thumbnail cropping correctly -->
+    <!-- This view size will be calculated in runtime -->
-    <!-- TODO(b/240924926) dynamically change the view size based on the screen size -->
+    <com.android.systemui.mediaprojection.appselector.view.MediaProjectionTaskView
-    <ImageView
         android:id="@+id/task_thumbnail"
-        android:layout_width="100dp"
+        android:layout_width="wrap_content"
-        android:layout_height="216dp"
+        android:layout_height="wrap_content"
-        android:scaleType="centerCrop"
+        android:clickable="false"
+        android:focusable="false"
         />
 </LinearLayout>

packages/SystemUI/res/values/dimens.xml

@@ -1457,6 +1457,9 @@
     <dimen name="media_projection_app_selector_icon_size">32dp</dimen>
     <dimen name="media_projection_app_selector_recents_padding">16dp</dimen>
     <dimen name="media_projection_app_selector_loader_size">32dp</dimen>
+    <dimen name="media_projection_app_selector_task_rounded_corners">10dp</dimen>
+    <dimen name="media_projection_app_selector_task_icon_size">24dp</dimen>
+    <dimen name="media_projection_app_selector_task_icon_margin">8dp</dimen>
 
     <!-- Dream overlay related dimensions -->
     <dimen name="dream_overlay_status_bar_height">60dp</dimen>

packages/SystemUI/src/com/android/systemui/dagger/SystemUIModule.java

@@ -43,7 +43,7 @@ import com.android.systemui.flags.FlagsModule;
 import com.android.systemui.fragments.FragmentService;
 import com.android.systemui.keyguard.data.BouncerViewModule;
 import com.android.systemui.log.dagger.LogModule;
-import com.android.systemui.media.dagger.MediaProjectionModule;
+import com.android.systemui.mediaprojection.appselector.MediaProjectionModule;
 import com.android.systemui.model.SysUiState;
 import com.android.systemui.navigationbar.NavigationBarComponent;
 import com.android.systemui.people.PeopleModule;

packages/SystemUI/src/com/android/systemui/media/MediaProjectionAppSelectorActivity.kt

@@ -16,8 +16,8 @@
 package com.android.systemui.media
 
 import android.app.ActivityOptions
-import android.app.IActivityTaskManager
 import android.content.Intent
+import android.content.res.Configuration
 import android.media.projection.IMediaProjection
 import android.media.projection.MediaProjectionManager.EXTRA_MEDIA_PROJECTION
 import android.os.Binder
@@ -25,87 +25,73 @@ import android.os.Bundle
 import android.os.IBinder
 import android.os.ResultReceiver
 import android.os.UserHandle
-import android.view.LayoutInflater
-import android.view.View
 import android.view.ViewGroup
-import androidx.recyclerview.widget.LinearLayoutManager
-import androidx.recyclerview.widget.RecyclerView
 import com.android.internal.annotations.VisibleForTesting
 import com.android.internal.app.ChooserActivity
 import com.android.internal.app.ResolverListController
 import com.android.internal.app.chooser.NotSelectableTargetInfo
 import com.android.internal.app.chooser.TargetInfo
 import com.android.systemui.R
+import com.android.systemui.mediaprojection.appselector.MediaProjectionAppSelectorComponent
 import com.android.systemui.mediaprojection.appselector.MediaProjectionAppSelectorController
+import com.android.systemui.mediaprojection.appselector.MediaProjectionAppSelectorResultHandler
 import com.android.systemui.mediaprojection.appselector.MediaProjectionAppSelectorView
 import com.android.systemui.mediaprojection.appselector.data.RecentTask
-import com.android.systemui.mediaprojection.appselector.view.RecentTasksAdapter
+import com.android.systemui.mediaprojection.appselector.view.MediaProjectionRecentsViewController
-import com.android.systemui.mediaprojection.appselector.view.RecentTasksAdapter.RecentTaskClickListener
+import com.android.systemui.statusbar.policy.ConfigurationController
 import com.android.systemui.util.AsyncActivityLauncher
-import com.android.systemui.util.recycler.HorizontalSpacerItemDecoration
 import javax.inject.Inject
 
 class MediaProjectionAppSelectorActivity(
+    private val componentFactory: MediaProjectionAppSelectorComponent.Factory,
     private val activityLauncher: AsyncActivityLauncher,
-    private val activityTaskManager: IActivityTaskManager,
-    private val controller: MediaProjectionAppSelectorController,
-    private val recentTasksAdapterFactory: RecentTasksAdapter.Factory,
     /** This is used to override the dependency in a screenshot test */
     @VisibleForTesting
     private val listControllerFactory: ((userHandle: UserHandle) -> ResolverListController)?
-) : ChooserActivity(), MediaProjectionAppSelectorView, RecentTaskClickListener {
+) : ChooserActivity(), MediaProjectionAppSelectorView, MediaProjectionAppSelectorResultHandler {
 
     @Inject
     constructor(
+        componentFactory: MediaProjectionAppSelectorComponent.Factory,
         activityLauncher: AsyncActivityLauncher,
-        activityTaskManager: IActivityTaskManager,
+    ) : this(componentFactory, activityLauncher, null)
-        controller: MediaProjectionAppSelectorController,
-        recentTasksAdapterFactory: RecentTasksAdapter.Factory,
-    ) : this(activityLauncher, activityTaskManager, controller, recentTasksAdapterFactory, null)
 
-    private var recentsRoot: ViewGroup? = null
+    private lateinit var configurationController: ConfigurationController
-    private var recentsProgress: View? = null
+    private lateinit var controller: MediaProjectionAppSelectorController
-    private var recentsRecycler: RecyclerView? = null
+    private lateinit var recentsViewController: MediaProjectionRecentsViewController
 
-    override fun getLayoutResource() =
+    override fun getLayoutResource() = R.layout.media_projection_app_selector
-        R.layout.media_projection_app_selector
 
     public override fun onCreate(bundle: Bundle?) {
-        val queryIntent = Intent(Intent.ACTION_MAIN)
+        val component =
-            .addCategory(Intent.CATEGORY_LAUNCHER)
+            componentFactory.create(
+                activity = this,
+                view = this,
+                resultHandler = this
+            )
+
+        // Create a separate configuration controller for this activity as the configuration
+        // might be different from the global one
+        configurationController = component.configurationController
+        controller = component.controller
+        recentsViewController = component.recentsViewController
+
+        val queryIntent = Intent(Intent.ACTION_MAIN).apply { addCategory(Intent.CATEGORY_LAUNCHER) }
         intent.putExtra(Intent.EXTRA_INTENT, queryIntent)
 
         // TODO(b/240939253): update copies
         val title = getString(R.string.media_projection_dialog_service_title)
         intent.putExtra(Intent.EXTRA_TITLE, title)
         super.onCreate(bundle)
-        controller.init(this)
+        controller.init()
     }
 
-    private fun createRecentsView(parent: ViewGroup): ViewGroup {
+    override fun onConfigurationChanged(newConfig: Configuration) {
-        val recentsRoot = LayoutInflater.from(this)
+        super.onConfigurationChanged(newConfig)
-            .inflate(R.layout.media_projection_recent_tasks, parent,
+        configurationController.onConfigurationChanged(newConfig)
-                    /* attachToRoot= */ false) as ViewGroup
-
-        recentsProgress = recentsRoot.requireViewById(R.id.media_projection_recent_tasks_loader)
-        recentsRecycler = recentsRoot.requireViewById(R.id.media_projection_recent_tasks_recycler)
-        recentsRecycler?.layoutManager = LinearLayoutManager(
-            this, LinearLayoutManager.HORIZONTAL,
-            /* reverseLayout= */false
-        )
-
-        val itemDecoration = HorizontalSpacerItemDecoration(
-            resources.getDimensionPixelOffset(
-                R.dimen.media_projection_app_selector_recents_padding
-            )
-        )
-        recentsRecycler?.addItemDecoration(itemDecoration)
-
-        return recentsRoot
     }
 
-    override fun appliedThemeResId(): Int =
+    override fun appliedThemeResId(): Int = R.style.Theme_SystemUI_MediaProjectionAppSelector
-        R.style.Theme_SystemUI_MediaProjectionAppSelector
 
     override fun createListController(userHandle: UserHandle): ResolverListController =
         listControllerFactory?.invoke(userHandle) ?: super.createListController(userHandle)
@@ -127,9 +113,9 @@ class MediaProjectionAppSelectorActivity(
         // is typically very fast, so we don't show any loaders.
         // We wait for the activity to be launched to make sure that the window of the activity
         // is created and ready to be captured.
-        val activityStarted = activityLauncher
+        val activityStarted =
-            .startActivityAsUser(intent, userHandle, activityOptions.toBundle()) {
+            activityLauncher.startActivityAsUser(intent, userHandle, activityOptions.toBundle()) {
-                onTargetActivityLaunched(launchToken)
+                returnSelectedApp(launchToken)
             }
 
         // Rely on the ActivityManager to pop up a dialog regarding app suspension
@@ -163,50 +149,27 @@ class MediaProjectionAppSelectorActivity(
     }
 
     override fun bind(recentTasks: List<RecentTask>) {
-        val recents = recentsRoot ?: return
+        recentsViewController.bind(recentTasks)
-        val progress = recentsProgress ?: return
-        val recycler = recentsRecycler ?: return
-
-        if (recentTasks.isEmpty()) {
-            recents.visibility = View.GONE
-            return
     }
 
-        progress.visibility = View.GONE
+    override fun returnSelectedApp(launchCookie: IBinder) {
-        recycler.visibility = View.VISIBLE
-        recents.visibility = View.VISIBLE
-
-        recycler.adapter = recentTasksAdapterFactory.create(recentTasks, this)
-    }
-
-    override fun onRecentAppClicked(task: RecentTask, view: View) {
-        val launchCookie = Binder()
-        val activityOptions = ActivityOptions.makeScaleUpAnimation(view, /* startX= */ 0,
-                /* startY= */ 0, view.width, view.height)
-        activityOptions.launchCookie = launchCookie
-
-        activityTaskManager.startActivityFromRecents(task.taskId, activityOptions.toBundle())
-        onTargetActivityLaunched(launchCookie)
-    }
-
-    private fun onTargetActivityLaunched(launchToken: IBinder) {
         if (intent.hasExtra(EXTRA_CAPTURE_REGION_RESULT_RECEIVER)) {
             // The client requested to return the result in the result receiver instead of
             // activity result, let's send the media projection to the result receiver
-            val resultReceiver = intent
+            val resultReceiver =
-                .getParcelableExtra(EXTRA_CAPTURE_REGION_RESULT_RECEIVER,
+                intent.getParcelableExtra(
-                    ResultReceiver::class.java) as ResultReceiver
+                    EXTRA_CAPTURE_REGION_RESULT_RECEIVER,
-            val captureRegion = MediaProjectionCaptureTarget(launchToken)
+                    ResultReceiver::class.java
-            val data = Bundle().apply {
+                ) as ResultReceiver
-                putParcelable(KEY_CAPTURE_TARGET, captureRegion)
+            val captureRegion = MediaProjectionCaptureTarget(launchCookie)
-            }
+            val data = Bundle().apply { putParcelable(KEY_CAPTURE_TARGET, captureRegion) }
             resultReceiver.send(RESULT_OK, data)
         } else {
             // Return the media projection instance as activity result
             val mediaProjectionBinder = intent.getIBinderExtra(EXTRA_MEDIA_PROJECTION)
             val projection = IMediaProjection.Stub.asInterface(mediaProjectionBinder)
 
-            projection.launchCookie = launchToken
+            projection.launchCookie = launchCookie
 
             val intent = Intent()
             intent.putExtra(EXTRA_MEDIA_PROJECTION, projection.asBinder())
@@ -223,15 +186,13 @@ class MediaProjectionAppSelectorActivity(
     override fun shouldShowContentPreview() = false
 
     override fun createContentPreviewView(parent: ViewGroup): ViewGroup =
-            recentsRoot ?: createRecentsView(parent).also {
+        recentsViewController.createView(parent)
-                recentsRoot = it
-            }
 
     companion object {
         /**
-         * When EXTRA_CAPTURE_REGION_RESULT_RECEIVER is passed as intent extra
+         * When EXTRA_CAPTURE_REGION_RESULT_RECEIVER is passed as intent extra the activity will
-         * the activity will send the [CaptureRegion] to the result receiver
+         * send the [CaptureRegion] to the result receiver instead of returning media projection
-         * instead of returning media projection instance through activity result.
+         * instance through activity result.
          */
         const val EXTRA_CAPTURE_REGION_RESULT_RECEIVER = "capture_region_result_receiver"
         const val KEY_CAPTURE_TARGET = "capture_region"

packages/SystemUI/src/com/android/systemui/media/dagger/MediaProjectionModule.kt

@@ -1,89 +0,0 @@
-/*
- * Copyright (C) 2022 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.systemui.media.dagger
-
-import android.app.Activity
-import android.content.ComponentName
-import android.content.Context
-import com.android.systemui.dagger.qualifiers.Application
-import com.android.systemui.media.MediaProjectionAppSelectorActivity
-import com.android.systemui.mediaprojection.appselector.MediaProjectionAppSelectorController
-import com.android.systemui.mediaprojection.appselector.data.ActivityTaskManagerThumbnailLoader
-import com.android.systemui.mediaprojection.appselector.data.AppIconLoader
-import com.android.systemui.mediaprojection.appselector.data.IconLoaderLibAppIconLoader
-import com.android.systemui.mediaprojection.appselector.data.RecentTaskListProvider
-import com.android.systemui.mediaprojection.appselector.data.RecentTaskThumbnailLoader
-import com.android.systemui.mediaprojection.appselector.data.ShellRecentTaskListProvider
-import dagger.Binds
-import dagger.Module
-import dagger.Provides
-import dagger.multibindings.ClassKey
-import dagger.multibindings.IntoMap
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.SupervisorJob
-import javax.inject.Qualifier
-
-@Qualifier
-@Retention(AnnotationRetention.BINARY)
-annotation class MediaProjectionAppSelector
-
-@Module
-abstract class MediaProjectionModule {
-
-    @Binds
-    @IntoMap
-    @ClassKey(MediaProjectionAppSelectorActivity::class)
-    abstract fun provideMediaProjectionAppSelectorActivity(
-        activity: MediaProjectionAppSelectorActivity
-    ): Activity
-
-    @Binds
-    abstract fun bindRecentTaskThumbnailLoader(
-        impl: ActivityTaskManagerThumbnailLoader
-    ): RecentTaskThumbnailLoader
-
-    @Binds
-    abstract fun bindRecentTaskListProvider(
-        impl: ShellRecentTaskListProvider
-    ): RecentTaskListProvider
-
-    @Binds
-    abstract fun bindAppIconLoader(impl: IconLoaderLibAppIconLoader): AppIconLoader
-
-    companion object {
-        @Provides
-        fun provideController(
-            recentTaskListProvider: RecentTaskListProvider,
-            context: Context,
-            @MediaProjectionAppSelector scope: CoroutineScope
-        ): MediaProjectionAppSelectorController {
-            val appSelectorComponentName =
-                ComponentName(context, MediaProjectionAppSelectorActivity::class.java)
-
-            return MediaProjectionAppSelectorController(
-                recentTaskListProvider,
-                scope,
-                appSelectorComponentName
-            )
-        }
-
-        @MediaProjectionAppSelector
-        @Provides
-        fun provideCoroutineScope(@Application applicationScope: CoroutineScope): CoroutineScope =
-            CoroutineScope(applicationScope.coroutineContext + SupervisorJob())
-    }
-}

packages/SystemUI/src/com/android/systemui/mediaprojection/appselector/MediaProjectionAppSelectorComponent.kt

@@ -0,0 +1,123 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.systemui.mediaprojection.appselector
+
+import android.app.Activity
+import android.content.ComponentName
+import android.content.Context
+import com.android.systemui.dagger.qualifiers.Application
+import com.android.systemui.media.MediaProjectionAppSelectorActivity
+import com.android.systemui.mediaprojection.appselector.data.ActivityTaskManagerThumbnailLoader
+import com.android.systemui.mediaprojection.appselector.data.AppIconLoader
+import com.android.systemui.mediaprojection.appselector.data.IconLoaderLibAppIconLoader
+import com.android.systemui.mediaprojection.appselector.data.RecentTaskListProvider
+import com.android.systemui.mediaprojection.appselector.data.RecentTaskThumbnailLoader
+import com.android.systemui.mediaprojection.appselector.data.ShellRecentTaskListProvider
+import com.android.systemui.mediaprojection.appselector.view.MediaProjectionRecentsViewController
+import com.android.systemui.mediaprojection.appselector.view.TaskPreviewSizeProvider
+import com.android.systemui.statusbar.phone.ConfigurationControllerImpl
+import com.android.systemui.statusbar.policy.ConfigurationController
+import dagger.Binds
+import dagger.BindsInstance
+import dagger.Module
+import dagger.Provides
+import dagger.Subcomponent
+import dagger.multibindings.ClassKey
+import dagger.multibindings.IntoMap
+import javax.inject.Qualifier
+import javax.inject.Scope
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.SupervisorJob
+
+@Qualifier @Retention(AnnotationRetention.BINARY) annotation class MediaProjectionAppSelector
+
+@Retention(AnnotationRetention.RUNTIME) @Scope annotation class MediaProjectionAppSelectorScope
+
+@Module(subcomponents = [MediaProjectionAppSelectorComponent::class])
+interface MediaProjectionModule {
+    @Binds
+    @IntoMap
+    @ClassKey(MediaProjectionAppSelectorActivity::class)
+    fun provideMediaProjectionAppSelectorActivity(
+        activity: MediaProjectionAppSelectorActivity
+    ): Activity
+}
+
+/** Scoped values for [MediaProjectionAppSelectorComponent].
+ *  We create a scope for the activity so certain dependencies like [TaskPreviewSizeProvider]
+ *  could be reused. */
+@Module
+interface MediaProjectionAppSelectorModule {
+
+    @Binds
+    @MediaProjectionAppSelectorScope
+    fun bindRecentTaskThumbnailLoader(
+        impl: ActivityTaskManagerThumbnailLoader
+    ): RecentTaskThumbnailLoader
+
+    @Binds
+    @MediaProjectionAppSelectorScope
+    fun bindRecentTaskListProvider(impl: ShellRecentTaskListProvider): RecentTaskListProvider
+
+    @Binds
+    @MediaProjectionAppSelectorScope
+    fun bindAppIconLoader(impl: IconLoaderLibAppIconLoader): AppIconLoader
+
+    companion object {
+        @Provides
+        @MediaProjectionAppSelector
+        @MediaProjectionAppSelectorScope
+        fun provideAppSelectorComponentName(context: Context): ComponentName =
+                ComponentName(context, MediaProjectionAppSelectorActivity::class.java)
+
+        @Provides
+        @MediaProjectionAppSelector
+        @MediaProjectionAppSelectorScope
+        fun bindConfigurationController(
+            activity: MediaProjectionAppSelectorActivity
+        ): ConfigurationController = ConfigurationControllerImpl(activity)
+
+        @Provides
+        @MediaProjectionAppSelector
+        @MediaProjectionAppSelectorScope
+        fun provideCoroutineScope(@Application applicationScope: CoroutineScope): CoroutineScope =
+            CoroutineScope(applicationScope.coroutineContext + SupervisorJob())
+    }
+}
+
+@Subcomponent(modules = [MediaProjectionAppSelectorModule::class])
+@MediaProjectionAppSelectorScope
+interface MediaProjectionAppSelectorComponent {
+
+    /** Generates [MediaProjectionAppSelectorComponent]. */
+    @Subcomponent.Factory
+    interface Factory {
+        /**
+         * Create a factory to inject the activity into the graph
+         */
+        fun create(
+            @BindsInstance activity: MediaProjectionAppSelectorActivity,
+            @BindsInstance view: MediaProjectionAppSelectorView,
+            @BindsInstance resultHandler: MediaProjectionAppSelectorResultHandler,
+        ): MediaProjectionAppSelectorComponent
+    }
+
+    val controller: MediaProjectionAppSelectorController
+    val recentsViewController: MediaProjectionRecentsViewController
+
+    @MediaProjectionAppSelector val configurationController: ConfigurationController
+}

packages/SystemUI/src/com/android/systemui/mediaprojection/appselector/MediaProjectionAppSelectorController.kt

@@ -17,20 +17,22 @@
 package com.android.systemui.mediaprojection.appselector
 
 import android.content.ComponentName
-import com.android.systemui.media.dagger.MediaProjectionAppSelector
 import com.android.systemui.mediaprojection.appselector.data.RecentTask
 import com.android.systemui.mediaprojection.appselector.data.RecentTaskListProvider
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.cancel
 import kotlinx.coroutines.launch
+import javax.inject.Inject
 
-class MediaProjectionAppSelectorController(
+@MediaProjectionAppSelectorScope
+class MediaProjectionAppSelectorController @Inject constructor(
     private val recentTaskListProvider: RecentTaskListProvider,
+    private val view: MediaProjectionAppSelectorView,
     @MediaProjectionAppSelector private val scope: CoroutineScope,
-    private val appSelectorComponentName: ComponentName
+    @MediaProjectionAppSelector private val appSelectorComponentName: ComponentName
 ) {
 
-    fun init(view: MediaProjectionAppSelectorView) {
+    fun init() {
         scope.launch {
             val tasks = recentTaskListProvider.loadRecentTasks().sortTasks()
             view.bind(tasks)

packages/SystemUI/src/com/android/systemui/mediaprojection/appselector/MediaProjectionAppSelectorResultHandler.kt

@@ -0,0 +1,15 @@
+package com.android.systemui.mediaprojection.appselector
+
+import android.os.IBinder
+
+/**
+ * Interface that allows to continue the media projection flow and return the selected app
+ * result to the original caller.
+ */
+interface MediaProjectionAppSelectorResultHandler {
+    /**
+     * Return selected app to the original caller of the media projection app picker.
+     * @param launchCookie launch cookie of the launched activity of the target app
+     */
+    fun returnSelectedApp(launchCookie: IBinder)
+}

packages/SystemUI/src/com/android/systemui/mediaprojection/appselector/view/MediaProjectionRecentsViewController.kt

@@ -0,0 +1,155 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.systemui.mediaprojection.appselector.view
+
+import android.app.ActivityOptions
+import android.app.IActivityTaskManager
+import android.graphics.Rect
+import android.os.Binder
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.RecyclerView
+import com.android.systemui.R
+import com.android.systemui.mediaprojection.appselector.MediaProjectionAppSelectorResultHandler
+import com.android.systemui.mediaprojection.appselector.MediaProjectionAppSelectorScope
+import com.android.systemui.mediaprojection.appselector.data.RecentTask
+import com.android.systemui.mediaprojection.appselector.view.RecentTasksAdapter.RecentTaskClickListener
+import com.android.systemui.mediaprojection.appselector.view.TaskPreviewSizeProvider.TaskPreviewSizeListener
+import com.android.systemui.util.recycler.HorizontalSpacerItemDecoration
+import javax.inject.Inject
+
+/**
+ * Controller that handles view of the recent apps selector in the media projection activity.
+ * It is responsible for creating and updating recent apps view.
+ */
+@MediaProjectionAppSelectorScope
+class MediaProjectionRecentsViewController
+@Inject
+constructor(
+    private val recentTasksAdapterFactory: RecentTasksAdapter.Factory,
+    private val taskViewSizeProvider: TaskPreviewSizeProvider,
+    private val activityTaskManager: IActivityTaskManager,
+    private val resultHandler: MediaProjectionAppSelectorResultHandler,
+) : RecentTaskClickListener, TaskPreviewSizeListener {
+
+    private var views: Views? = null
+    private var lastBoundData: List<RecentTask>? = null
+
+    init {
+        taskViewSizeProvider.addCallback(this)
+    }
+
+    fun createView(parent: ViewGroup): ViewGroup =
+        views?.root ?: createRecentViews(parent).also {
+            views = it
+            lastBoundData?.let { recents -> bind(recents) }
+        }.root
+
+    fun bind(recentTasks: List<RecentTask>) {
+        views?.apply {
+            if (recentTasks.isEmpty()) {
+                root.visibility = View.GONE
+                return
+            }
+
+            progress.visibility = View.GONE
+            recycler.visibility = View.VISIBLE
+            root.visibility = View.VISIBLE
+
+            recycler.adapter =
+                recentTasksAdapterFactory.create(
+                    recentTasks,
+                    this@MediaProjectionRecentsViewController
+                )
+        }
+
+        lastBoundData = recentTasks
+    }
+
+    private fun createRecentViews(parent: ViewGroup): Views {
+        val recentsRoot =
+            LayoutInflater.from(parent.context)
+                .inflate(R.layout.media_projection_recent_tasks, parent, /* attachToRoot= */ false)
+                as ViewGroup
+
+        val container = recentsRoot.findViewById<View>(R.id.media_projection_recent_tasks_container)
+        container.setTaskHeightSize()
+
+        val progress = recentsRoot.requireViewById<View>(R.id.media_projection_recent_tasks_loader)
+        val recycler =
+            recentsRoot.requireViewById<RecyclerView>(R.id.media_projection_recent_tasks_recycler)
+        recycler.layoutManager =
+            LinearLayoutManager(
+                parent.context,
+                LinearLayoutManager.HORIZONTAL,
+                /* reverseLayout= */ false
+            )
+
+        val itemDecoration =
+            HorizontalSpacerItemDecoration(
+                parent.resources.getDimensionPixelOffset(
+                    R.dimen.media_projection_app_selector_recents_padding
+                )
+            )
+        recycler.addItemDecoration(itemDecoration)
+
+        return Views(recentsRoot, container, progress, recycler)
+    }
+
+    override fun onRecentAppClicked(task: RecentTask, view: View) {
+        val launchCookie = Binder()
+        val activityOptions =
+            ActivityOptions.makeScaleUpAnimation(
+                view,
+                /* startX= */ 0,
+                /* startY= */ 0,
+                view.width,
+                view.height
+            )
+        activityOptions.launchCookie = launchCookie
+
+        activityTaskManager.startActivityFromRecents(task.taskId, activityOptions.toBundle())
+        resultHandler.returnSelectedApp(launchCookie)
+    }
+
+    override fun onTaskSizeChanged(size: Rect) {
+        views?.recentsContainer?.setTaskHeightSize()
+    }
+
+    private fun View.setTaskHeightSize() {
+        val thumbnailHeight = taskViewSizeProvider.size.height()
+        val itemHeight =
+            thumbnailHeight +
+                context.resources.getDimensionPixelSize(
+                    R.dimen.media_projection_app_selector_task_icon_size
+                ) +
+                context.resources.getDimensionPixelSize(
+                    R.dimen.media_projection_app_selector_task_icon_margin
+                ) * 2
+
+        layoutParams = layoutParams.apply { height = itemHeight }
+    }
+
+    private class Views(
+        val root: ViewGroup,
+        val recentsContainer: View,
+        val progress: View,
+        val recycler: RecyclerView
+    )
+}

packages/SystemUI/src/com/android/systemui/mediaprojection/appselector/view/MediaProjectionTaskView.kt

@@ -0,0 +1,175 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.systemui.mediaprojection.appselector.view
+
+import android.content.Context
+import android.graphics.BitmapShader
+import android.graphics.Canvas
+import android.graphics.Color
+import android.graphics.Paint
+import android.graphics.Rect
+import android.graphics.Shader
+import android.util.AttributeSet
+import android.view.View
+import android.view.WindowManager
+import androidx.core.content.getSystemService
+import androidx.core.content.res.use
+import com.android.internal.R as AndroidR
+import com.android.systemui.R
+import com.android.systemui.mediaprojection.appselector.data.RecentTask
+import com.android.systemui.shared.recents.model.ThumbnailData
+import com.android.systemui.shared.recents.utilities.PreviewPositionHelper
+import com.android.systemui.shared.recents.utilities.Utilities.isTablet
+
+/**
+ * Custom view that shows a thumbnail preview of one recent task based on [ThumbnailData].
+ * It handles proper cropping and positioning of the thumbnail using [PreviewPositionHelper].
+ */
+class MediaProjectionTaskView
+@JvmOverloads
+constructor(context: Context, attrs: AttributeSet? = null, defStyleAttr: Int = 0) :
+    View(context, attrs, defStyleAttr) {
+
+    private val defaultBackgroundColor: Int
+
+    init {
+        val backgroundColorAttribute = intArrayOf(android.R.attr.colorBackgroundFloating)
+        defaultBackgroundColor =
+            context.obtainStyledAttributes(backgroundColorAttribute).use {
+                it.getColor(/* index= */ 0, /* defValue= */ Color.BLACK)
+            }
+    }
+
+    private val windowManager: WindowManager = context.getSystemService()!!
+    private val paint = Paint(Paint.ANTI_ALIAS_FLAG)
+    private val backgroundPaint =
+        Paint(Paint.ANTI_ALIAS_FLAG).apply { color = defaultBackgroundColor }
+    private val cornerRadius =
+        context.resources.getDimensionPixelSize(
+            R.dimen.media_projection_app_selector_task_rounded_corners
+        )
+    private val previewPositionHelper = PreviewPositionHelper()
+    private val previewRect = Rect()
+
+    private var task: RecentTask? = null
+    private var thumbnailData: ThumbnailData? = null
+
+    private var bitmapShader: BitmapShader? = null
+
+    fun bindTask(task: RecentTask?, thumbnailData: ThumbnailData?) {
+        this.task = task
+        this.thumbnailData = thumbnailData
+
+        // Strip alpha channel to make sure that the color is not semi-transparent
+        val color = (task?.colorBackground ?: Color.BLACK) or 0xFF000000.toInt()
+
+        paint.color = color
+        backgroundPaint.color = color
+
+        refresh()
+    }
+
+    override fun onSizeChanged(w: Int, h: Int, oldw: Int, oldh: Int) {
+        updateThumbnailMatrix()
+        invalidate()
+    }
+
+    override fun onDraw(canvas: Canvas) {
+        // Always draw the background since the snapshots might be translucent or partially empty
+        // (For example, tasks been reparented out of dismissing split root when drag-to-dismiss
+        // split screen).
+        canvas.drawRoundRect(
+            0f,
+            1f,
+            width.toFloat(),
+            (height - 1).toFloat(),
+            cornerRadius.toFloat(),
+            cornerRadius.toFloat(),
+            backgroundPaint
+        )
+
+        val drawBackgroundOnly = task == null || bitmapShader == null || thumbnailData == null
+        if (drawBackgroundOnly) {
+            return
+        }
+
+        // Draw the task thumbnail using bitmap shader in the paint
+        canvas.drawRoundRect(
+            0f,
+            0f,
+            width.toFloat(),
+            height.toFloat(),
+            cornerRadius.toFloat(),
+            cornerRadius.toFloat(),
+            paint
+        )
+    }
+
+    private fun refresh() {
+        val thumbnailBitmap = thumbnailData?.thumbnail
+
+        if (thumbnailBitmap != null) {
+            thumbnailBitmap.prepareToDraw()
+            bitmapShader =
+                BitmapShader(thumbnailBitmap, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP)
+            paint.shader = bitmapShader
+            updateThumbnailMatrix()
+        } else {
+            bitmapShader = null
+            paint.shader = null
+        }
+
+        invalidate()
+    }
+
+    private fun updateThumbnailMatrix() {
+        previewPositionHelper.isOrientationChanged = false
+
+        val bitmapShader = bitmapShader ?: return
+        val thumbnailData = thumbnailData ?: return
+        val display = context.display ?: return
+        val windowMetrics = windowManager.maximumWindowMetrics
+
+        previewRect.set(0, 0, thumbnailData.thumbnail.width, thumbnailData.thumbnail.height)
+
+        val currentRotation: Int = display.rotation
+        val displayWidthPx = windowMetrics.bounds.width()
+        val isRtl = layoutDirection == LAYOUT_DIRECTION_RTL
+        val isTablet = isTablet(context)
+        val taskbarSize =
+            if (isTablet) {
+                resources.getDimensionPixelSize(AndroidR.dimen.taskbar_frame_height)
+            } else {
+                0
+            }
+
+        previewPositionHelper.updateThumbnailMatrix(
+            previewRect,
+            thumbnailData,
+            measuredWidth,
+            measuredHeight,
+            displayWidthPx,
+            taskbarSize,
+            isTablet,
+            currentRotation,
+            isRtl
+        )
+
+        bitmapShader.setLocalMatrix(previewPositionHelper.matrix)
+        paint.shader = bitmapShader
+    }
+}

packages/SystemUI/src/com/android/systemui/mediaprojection/appselector/view/RecentTaskViewHolder.kt

@@ -16,15 +16,17 @@
 
 package com.android.systemui.mediaprojection.appselector.view
 
+import android.graphics.Rect
 import android.view.View
 import android.view.ViewGroup
 import android.widget.ImageView
 import androidx.recyclerview.widget.RecyclerView
 import com.android.systemui.R
-import com.android.systemui.media.dagger.MediaProjectionAppSelector
+import com.android.systemui.mediaprojection.appselector.MediaProjectionAppSelector
 import com.android.systemui.mediaprojection.appselector.data.AppIconLoader
 import com.android.systemui.mediaprojection.appselector.data.RecentTask
 import com.android.systemui.mediaprojection.appselector.data.RecentTaskThumbnailLoader
+import com.android.systemui.statusbar.policy.ConfigurationController.ConfigurationListener
 import dagger.assisted.Assisted
 import dagger.assisted.AssistedFactory
 import dagger.assisted.AssistedInject
@@ -32,19 +34,27 @@ import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.launch
 
-class RecentTaskViewHolder @AssistedInject constructor(
+class RecentTaskViewHolder
-    @Assisted root: ViewGroup,
+@AssistedInject
+constructor(
+    @Assisted private val root: ViewGroup,
     private val iconLoader: AppIconLoader,
     private val thumbnailLoader: RecentTaskThumbnailLoader,
+    private val taskViewSizeProvider: TaskPreviewSizeProvider,
     @MediaProjectionAppSelector private val scope: CoroutineScope
-) : RecyclerView.ViewHolder(root) {
+) : RecyclerView.ViewHolder(root), ConfigurationListener, TaskPreviewSizeProvider.TaskPreviewSizeListener {
 
+    val thumbnailView: MediaProjectionTaskView = root.requireViewById(R.id.task_thumbnail)
     private val iconView: ImageView = root.requireViewById(R.id.task_icon)
-    private val thumbnailView: ImageView = root.requireViewById(R.id.task_thumbnail)
 
     private var job: Job? = null
 
+    init {
+        updateThumbnailSize()
+    }
+
     fun bind(task: RecentTask, onClick: (View) -> Unit) {
+        taskViewSizeProvider.addCallback(this)
         job?.cancel()
 
         job =
@@ -57,20 +67,33 @@ class RecentTaskViewHolder @AssistedInject constructor(
                 }
                 launch {
                     val thumbnail = thumbnailLoader.loadThumbnail(task.taskId)
-                    thumbnailView.setImageBitmap(thumbnail?.thumbnail)
+                    thumbnailView.bindTask(task, thumbnail)
                 }
             }
 
-        thumbnailView.setOnClickListener(onClick)
+        root.setOnClickListener(onClick)
     }
 
     fun onRecycled() {
+        taskViewSizeProvider.removeCallback(this)
         iconView.setImageDrawable(null)
-        thumbnailView.setImageBitmap(null)
+        thumbnailView.bindTask(null, null)
         job?.cancel()
         job = null
     }
 
+    override fun onTaskSizeChanged(size: Rect) {
+        updateThumbnailSize()
+    }
+
+    private fun updateThumbnailSize() {
+        thumbnailView.layoutParams =
+                thumbnailView.layoutParams.apply {
+                    width = taskViewSizeProvider.size.width()
+                    height = taskViewSizeProvider.size.height()
+                }
+    }
+
     @AssistedFactory
     fun interface Factory {
         fun create(root: ViewGroup): RecentTaskViewHolder

packages/SystemUI/src/com/android/systemui/mediaprojection/appselector/view/RecentTasksAdapter.kt

@@ -26,7 +26,9 @@ import dagger.assisted.Assisted
 import dagger.assisted.AssistedFactory
 import dagger.assisted.AssistedInject
 
-class RecentTasksAdapter @AssistedInject constructor(
+class RecentTasksAdapter
+@AssistedInject
+constructor(
     @Assisted private val items: List<RecentTask>,
     @Assisted private val listener: RecentTaskClickListener,
     private val viewHolderFactory: RecentTaskViewHolder.Factory
@@ -35,7 +37,7 @@ class RecentTasksAdapter @AssistedInject constructor(
     override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): RecentTaskViewHolder {
         val taskItem =
                 LayoutInflater.from(parent.context)
-                .inflate(R.layout.media_projection_task_item, null) as ViewGroup
+                        .inflate(R.layout.media_projection_task_item, parent, false) as ViewGroup
 
         return viewHolderFactory.create(taskItem)
     }

packages/SystemUI/src/com/android/systemui/mediaprojection/appselector/view/TaskPreviewSizeProvider.kt

@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.systemui.mediaprojection.appselector.view
+
+import android.content.Context
+import android.content.res.Configuration
+import android.graphics.Rect
+import android.view.WindowManager
+import com.android.internal.R as AndroidR
+import com.android.systemui.mediaprojection.appselector.MediaProjectionAppSelectorScope
+import com.android.systemui.mediaprojection.appselector.view.TaskPreviewSizeProvider.TaskPreviewSizeListener
+import com.android.systemui.shared.recents.utilities.Utilities.isTablet
+import com.android.systemui.statusbar.policy.CallbackController
+import com.android.systemui.statusbar.policy.ConfigurationController
+import com.android.systemui.statusbar.policy.ConfigurationController.ConfigurationListener
+import javax.inject.Inject
+
+@MediaProjectionAppSelectorScope
+class TaskPreviewSizeProvider
+@Inject
+constructor(
+    private val context: Context,
+    private val windowManager: WindowManager,
+    configurationController: ConfigurationController
+) : CallbackController<TaskPreviewSizeListener>, ConfigurationListener {
+
+    /** Returns the size of the task preview on the screen in pixels */
+    val size: Rect = calculateSize()
+
+    private val listeners = arrayListOf<TaskPreviewSizeListener>()
+
+    init {
+        configurationController.addCallback(this)
+    }
+
+    override fun onConfigChanged(newConfig: Configuration) {
+        val newSize = calculateSize()
+        if (newSize != size) {
+            size.set(newSize)
+            listeners.forEach { it.onTaskSizeChanged(size) }
+        }
+    }
+
+    private fun calculateSize(): Rect {
+        val windowMetrics = windowManager.maximumWindowMetrics
+        val maximumWindowHeight = windowMetrics.bounds.height()
+        val width = windowMetrics.bounds.width()
+        var height = maximumWindowHeight
+
+        val isTablet = isTablet(context)
+        if (isTablet) {
+            val taskbarSize =
+                context.resources.getDimensionPixelSize(AndroidR.dimen.taskbar_frame_height)
+            height -= taskbarSize
+        }
+
+        val previewSize = Rect(0, 0, width, height)
+        val scale = (height / maximumWindowHeight.toFloat()) / SCREEN_HEIGHT_TO_TASK_HEIGHT_RATIO
+        previewSize.scale(scale)
+
+        return previewSize
+    }
+
+    override fun addCallback(listener: TaskPreviewSizeListener) {
+        listeners += listener
+    }
+
+    override fun removeCallback(listener: TaskPreviewSizeListener) {
+        listeners -= listener
+    }
+
+    interface TaskPreviewSizeListener {
+        fun onTaskSizeChanged(size: Rect)
+    }
+}
+
+/**
+ * How many times smaller the task preview should be on the screen comparing to the height of the
+ * screen
+ */
+private const val SCREEN_HEIGHT_TO_TASK_HEIGHT_RATIO = 4f

packages/SystemUI/tests/src/com/android/systemui/mediaprojection/appselector/MediaProjectionAppSelectorControllerTest.kt

@@ -25,6 +25,7 @@ class MediaProjectionAppSelectorControllerTest : SysuiTestCase() {
 
     private val controller = MediaProjectionAppSelectorController(
         taskListProvider,
+        view,
         scope,
         appSelectorComponentName
     )
@@ -33,7 +34,7 @@ class MediaProjectionAppSelectorControllerTest : SysuiTestCase() {
     fun initNoRecentTasks_bindsEmptyList() {
         taskListProvider.tasks = emptyList()
 
-        controller.init(view)
+        controller.init()
 
         verify(view).bind(emptyList())
     }
@@ -44,7 +45,7 @@ class MediaProjectionAppSelectorControllerTest : SysuiTestCase() {
             createRecentTask(taskId = 1)
         )
 
-        controller.init(view)
+        controller.init()
 
         verify(view).bind(
             listOf(
@@ -62,7 +63,7 @@ class MediaProjectionAppSelectorControllerTest : SysuiTestCase() {
         )
         taskListProvider.tasks = tasks
 
-        controller.init(view)
+        controller.init()
 
         verify(view).bind(
             listOf(
@@ -84,7 +85,7 @@ class MediaProjectionAppSelectorControllerTest : SysuiTestCase() {
         )
         taskListProvider.tasks = tasks
 
-        controller.init(view)
+        controller.init()
 
         verify(view).bind(
             listOf(

packages/SystemUI/tests/src/com/android/systemui/mediaprojection/appselector/view/TaskPreviewSizeProviderTest.kt

@@ -0,0 +1,134 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.systemui.mediaprojection.appselector.view
+
+import android.content.Context
+import android.content.res.Configuration
+import android.content.res.Resources
+import android.graphics.Rect
+import android.util.DisplayMetrics.DENSITY_DEFAULT
+import android.view.WindowManager
+import android.view.WindowMetrics
+import androidx.test.filters.SmallTest
+import com.android.internal.R
+import com.android.systemui.SysuiTestCase
+import com.android.systemui.mediaprojection.appselector.view.TaskPreviewSizeProvider.TaskPreviewSizeListener
+import com.android.systemui.statusbar.policy.FakeConfigurationController
+import com.android.systemui.util.mockito.eq
+import com.android.systemui.util.mockito.mock
+import com.android.systemui.util.mockito.whenever
+import com.google.common.truth.Truth.assertThat
+import kotlin.math.min
+import org.junit.Before
+import org.junit.Test
+
+@SmallTest
+class TaskPreviewSizeProviderTest : SysuiTestCase() {
+
+    private val mockContext: Context = mock()
+    private val resources: Resources = mock()
+    private val windowManager: WindowManager = mock()
+    private val sizeUpdates = arrayListOf<Rect>()
+    private val testConfigurationController = FakeConfigurationController()
+
+    @Before
+    fun setup() {
+        whenever(mockContext.getSystemService(eq(WindowManager::class.java)))
+            .thenReturn(windowManager)
+        whenever(mockContext.resources).thenReturn(resources)
+    }
+
+    @Test
+    fun size_phoneDisplay_thumbnailSizeIsSmallerAndProportionalToTheScreenSize() {
+        givenDisplay(width = 400, height = 600, isTablet = false)
+
+        val size = createSizeProvider().size
+
+        assertThat(size).isEqualTo(Rect(0, 0, 100, 150))
+    }
+
+    @Test
+    fun size_tabletDisplay_thumbnailSizeProportionalToTheScreenSizeExcludingTaskbar() {
+        givenDisplay(width = 400, height = 600, isTablet = true)
+        givenTaskbarSize(20)
+
+        val size = createSizeProvider().size
+
+        assertThat(size).isEqualTo(Rect(0, 0, 97, 140))
+    }
+
+    @Test
+    fun size_phoneDisplayAndRotate_emitsSizeUpdate() {
+        givenDisplay(width = 400, height = 600, isTablet = false)
+        createSizeProvider()
+
+        givenDisplay(width = 600, height = 400, isTablet = false)
+        testConfigurationController.onConfigurationChanged(Configuration())
+
+        assertThat(sizeUpdates).containsExactly(Rect(0, 0, 150, 100))
+    }
+
+    @Test
+    fun size_phoneDisplayAndRotateConfigurationChange_returnsUpdatedSize() {
+        givenDisplay(width = 400, height = 600, isTablet = false)
+        val sizeProvider = createSizeProvider()
+
+        givenDisplay(width = 600, height = 400, isTablet = false)
+        testConfigurationController.onConfigurationChanged(Configuration())
+
+        assertThat(sizeProvider.size).isEqualTo(Rect(0, 0, 150, 100))
+    }
+
+    private fun givenTaskbarSize(size: Int) {
+        whenever(resources.getDimensionPixelSize(eq(R.dimen.taskbar_frame_height))).thenReturn(size)
+    }
+
+    private fun givenDisplay(width: Int, height: Int, isTablet: Boolean = false) {
+        val bounds = Rect(0, 0, width, height)
+        val windowMetrics = WindowMetrics(bounds, null)
+        whenever(windowManager.maximumWindowMetrics).thenReturn(windowMetrics)
+        whenever(windowManager.currentWindowMetrics).thenReturn(windowMetrics)
+
+        val minDimension = min(width, height)
+
+        // Calculate DPI so the smallest width is either considered as tablet or as phone
+        val targetSmallestWidthDpi =
+            if (isTablet) SMALLEST_WIDTH_DPI_TABLET else SMALLEST_WIDTH_DPI_PHONE
+        val densityDpi = minDimension * DENSITY_DEFAULT / targetSmallestWidthDpi
+
+        val configuration = Configuration(context.resources.configuration)
+        configuration.densityDpi = densityDpi
+        whenever(resources.configuration).thenReturn(configuration)
+    }
+
+    private fun createSizeProvider(): TaskPreviewSizeProvider {
+        val listener =
+            object : TaskPreviewSizeListener {
+                override fun onTaskSizeChanged(size: Rect) {
+                    sizeUpdates.add(size)
+                }
+            }
+
+        return TaskPreviewSizeProvider(mockContext, windowManager, testConfigurationController)
+            .also { it.addCallback(listener) }
+    }
+
+    private companion object {
+        private const val SMALLEST_WIDTH_DPI_TABLET = 800
+        private const val SMALLEST_WIDTH_DPI_PHONE = 400
+    }
+}