BigPicture lazy loading (51322d6b) · Commits · e / os / android_frameworks_base

packages/SystemUI/src/com/android/systemui/statusbar/notification/collection/inflation/NotificationRowBinderImpl.java

+21 −0

Original line number	Diff line number	Diff line
		@@ -31,6 +31,7 @@ import android.view.ViewGroup;
		import com.android.internal.util.NotificationMessagingUtil;
		import com.android.systemui.dagger.SysUISingleton;
		import com.android.systemui.flags.FeatureFlags;
		import com.android.systemui.flags.Flags;
		import com.android.systemui.statusbar.NotificationLockscreenUserManager;
		import com.android.systemui.statusbar.NotificationPresenter;
		import com.android.systemui.statusbar.NotificationRemoteInputManager;
		@@ -38,6 +39,7 @@ import com.android.systemui.statusbar.notification.InflationException;
		import com.android.systemui.statusbar.notification.NotificationClicker;
		import com.android.systemui.statusbar.notification.collection.NotificationEntry;
		import com.android.systemui.statusbar.notification.icon.IconManager;
		import com.android.systemui.statusbar.notification.row.BigPictureIconManager;
		import com.android.systemui.statusbar.notification.row.ExpandableNotificationRow;
		import com.android.systemui.statusbar.notification.row.ExpandableNotificationRowController;
		import com.android.systemui.statusbar.notification.row.NotifBindPipeline;
		@@ -151,6 +153,7 @@ public class NotificationRowBinderImpl implements NotificationRowBinder {
		component.getExpandableNotificationRowController();
		rowController.init(entry);
		entry.setRowController(rowController);
		maybeSetBigPictureIconManager(row, component);
		bindRow(entry, row);
		updateRow(entry, row);
		inflateContentViews(entry, params, row, callback);
		@@ -165,6 +168,7 @@ public class NotificationRowBinderImpl implements NotificationRowBinder {
		return;
		}
		mLogger.logReleasingViews(entry);
		cancelRunningJobs(entry.getRow());
		final RowContentBindParams params = mRowContentBindStage.getStageParams(entry);
		params.markContentViewsFreeable(FLAG_CONTENT_VIEW_CONTRACTED);
		params.markContentViewsFreeable(FLAG_CONTENT_VIEW_EXPANDED);
		@@ -172,6 +176,23 @@ public class NotificationRowBinderImpl implements NotificationRowBinder {
		mRowContentBindStage.requestRebind(entry, null);
		}

		private void maybeSetBigPictureIconManager(ExpandableNotificationRow row,
		ExpandableNotificationRowComponent component) {
		if (mFeatureFlags.isEnabled(Flags.BIGPICTURE_NOTIFICATION_LAZY_LOADING)) {
		row.setBigPictureIconManager(component.getBigPictureIconManager());
		}
		}

		private void cancelRunningJobs(ExpandableNotificationRow row) {
		if (row == null) {
		return;
		}
		BigPictureIconManager iconManager = row.getBigPictureIconManager();
		if (iconManager != null) {
		iconManager.cancelJobs();
		}
		}

		/**
		* Bind row to various controllers and managers. This is only called when the row is first
		* created.

packages/SystemUI/src/com/android/systemui/statusbar/notification/row/BigPictureIconManager.kt

0 → 100644

+298 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2023 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.statusbar.notification.row

		import android.annotation.WorkerThread
		import android.app.ActivityManager
		import android.content.Context
		import android.graphics.drawable.Drawable
		import android.graphics.drawable.Icon
		import android.util.Dumpable
		import android.util.Log
		import android.util.Size
		import com.android.internal.R
		import com.android.internal.widget.NotificationDrawableConsumer
		import com.android.internal.widget.NotificationIconManager
		import com.android.systemui.dagger.qualifiers.Application
		import com.android.systemui.dagger.qualifiers.Background
		import com.android.systemui.dagger.qualifiers.Main
		import com.android.systemui.graphics.ImageLoader
		import com.android.systemui.statusbar.notification.row.BigPictureIconManager.DrawableState.Empty
		import com.android.systemui.statusbar.notification.row.BigPictureIconManager.DrawableState.FullImage
		import com.android.systemui.statusbar.notification.row.BigPictureIconManager.DrawableState.PlaceHolder
		import java.io.PrintWriter
		import javax.inject.Inject
		import kotlin.math.min
		import kotlinx.coroutines.CoroutineDispatcher
		import kotlinx.coroutines.CoroutineScope
		import kotlinx.coroutines.Job
		import kotlinx.coroutines.delay
		import kotlinx.coroutines.launch
		import kotlinx.coroutines.withContext

		private const val TAG = "BigPicImageLoader"
		private const val DEBUG = false
		private const val FREE_IMAGE_DELAY_MS = 3000L

		/**
		* A helper class for [com.android.internal.widget.BigPictureNotificationImageView] to lazy-load
		* images from SysUI. It replaces the placeholder image with the fully loaded one, and vica versa.
		*
		* TODO(b/283082473) move the logs to a [com.android.systemui.log.LogBuffer]
		*/
		@SuppressWarnings("DumpableNotRegistered")
		class BigPictureIconManager
		@Inject
		constructor(
		private val context: Context,
		private val imageLoader: ImageLoader,
		@Application private val scope: CoroutineScope,
		@Main private val mainDispatcher: CoroutineDispatcher,
		@Background private val bgDispatcher: CoroutineDispatcher
		) : NotificationIconManager, Dumpable {

		private var lastLoadingJob: Job? = null
		private var drawableConsumer: NotificationDrawableConsumer? = null
		private var displayedState: DrawableState = Empty(null)
		private var viewShown = false

		private var maxWidth = getMaxWidth()
		private var maxHeight = getMaxHeight()

		/**
		* Called when the displayed state changes of the view.
		*
		* @param shown true if the view is shown, and the image needs to be displayed.
		*/
		fun onViewShown(shown: Boolean) {
		log("onViewShown:$shown")

		if (this.viewShown != shown) {
		this.viewShown = shown

		val state = displayedState

		this.lastLoadingJob?.cancel()
		this.lastLoadingJob =
		when {
		state is Empty && shown -> state.icon?.let(::startLoadingJob)
		state is PlaceHolder && shown -> startLoadingJob(state.icon)
		state is FullImage && !shown ->
		startFreeImageJob(state.icon, state.drawableSize)
		else -> null
		}
		}
		}

		/**
		* Update the maximum width and height allowed for bitmaps, ex. after a configuration change.
		*/
		fun updateMaxImageSizes() {
		log("updateMaxImageSizes")
		maxWidth = getMaxWidth()
		maxHeight = getMaxHeight()
		}

		/** Cancels all currently running jobs. */
		fun cancelJobs() {
		lastLoadingJob?.cancel()
		}

		@WorkerThread
		override fun updateIcon(drawableConsumer: NotificationDrawableConsumer, icon: Icon?): Runnable {
		if (this.drawableConsumer != null && this.drawableConsumer != drawableConsumer) {
		Log.wtf(TAG, "A consumer is already set for this iconManager.")
		return Runnable {}
		}

		if (displayedState.iconSameAs(icon)) {
		// We're already handling this icon, nothing to do here.
		log("skipping updateIcon for consumer:$drawableConsumer with icon:$icon")
		return Runnable {}
		}

		this.drawableConsumer = drawableConsumer
		this.displayedState = Empty(icon)
		this.lastLoadingJob?.cancel()

		val drawable = loadImageOrPlaceHolderSync(icon)

		log("icon updated")

		return Runnable { drawableConsumer.setImageDrawable(drawable) }
		}

		override fun dump(pw: PrintWriter, args: Array<out String>?) {
		pw.println("BigPictureIconManager ${getDebugString()}")
		}

		@WorkerThread
		private fun loadImageOrPlaceHolderSync(icon: Icon?): Drawable? {
		icon ?: return null

		if (viewShown) {
		return loadImageSync(icon)
		}

		return loadPlaceHolderSync(icon) ?: loadImageSync(icon)
		}

		@WorkerThread
		private fun loadImageSync(icon: Icon): Drawable? {
		return imageLoader.loadDrawableSync(icon, context, maxWidth, maxHeight)?.also { drawable ->
		checkPlaceHolderSizeForDrawable(this.displayedState, drawable)
		this.displayedState = FullImage(icon, drawable.intrinsicSize)
		}
		}

		private fun checkPlaceHolderSizeForDrawable(
		displayedState: DrawableState,
		newDrawable: Drawable
		) {
		if (displayedState is PlaceHolder) {
		val (oldWidth, oldHeight) = displayedState.drawableSize
		val (newWidth, newHeight) = newDrawable.intrinsicSize

		if (oldWidth != newWidth \|\| oldHeight != newHeight) {
		Log.e(
		TAG,
		"Mismatch in dimensions, when replacing PlaceHolder " +
		"$oldWidth X $oldHeight with Drawable $newWidth X $newHeight."
		)
		}
		}
		}

		@WorkerThread
		private fun loadPlaceHolderSync(icon: Icon): Drawable? {
		return imageLoader
		.loadSizeSync(icon, context)
		?.resizeToMax(maxWidth, maxHeight) // match the dimensions of the fully loaded drawable
		?.let { size -> createPlaceHolder(size) }
		?.also { drawable -> this.displayedState = PlaceHolder(icon, drawable.intrinsicSize) }
		}

		private fun startLoadingJob(icon: Icon): Job =
		scope.launch {
		val drawable = withContext(bgDispatcher) { loadImageSync(icon) }
		withContext(mainDispatcher) { drawableConsumer?.setImageDrawable(drawable) }
		log("image loaded")
		}

		private fun startFreeImageJob(icon: Icon, drawableSize: Size): Job =
		scope.launch {
		delay(FREE_IMAGE_DELAY_MS)
		val drawable = createPlaceHolder(drawableSize)
		displayedState = PlaceHolder(icon, drawable.intrinsicSize)
		withContext(mainDispatcher) { drawableConsumer?.setImageDrawable(drawable) }
		log("placeholder loaded")
		}

		private fun createPlaceHolder(size: Size): Drawable {
		return PlaceHolderDrawable(width = size.width, height = size.height)
		}

		private fun isLowRam(): Boolean {
		return ActivityManager.isLowRamDeviceStatic()
		}

		private fun getMaxWidth() =
		context.resources.getDimensionPixelSize(
		if (isLowRam()) {
		R.dimen.notification_big_picture_max_width_low_ram
		} else {
		R.dimen.notification_big_picture_max_width
		}
		)

		private fun getMaxHeight() =
		context.resources.getDimensionPixelSize(
		if (isLowRam()) {
		R.dimen.notification_big_picture_max_height_low_ram
		} else {
		R.dimen.notification_big_picture_max_height
		}
		)

		private fun log(msg: String) {
		if (DEBUG) {
		Log.d(TAG, "$msg state=${getDebugString()}")
		}
		}

		private fun getDebugString() =
		"{ state:$displayedState, hasConsumer:${drawableConsumer != null}, viewShown:$viewShown}"

		private sealed class DrawableState(open val icon: Icon?) {
		data class Empty(override val icon: Icon?) : DrawableState(icon)
		data class PlaceHolder(override val icon: Icon, val drawableSize: Size) :
		DrawableState(icon)
		data class FullImage(override val icon: Icon, val drawableSize: Size) : DrawableState(icon)

		fun iconSameAs(other: Icon?): Boolean {
		val displayedIcon = icon
		return when {
		displayedIcon == null && other == null -> true
		displayedIcon != null && other != null -> displayedIcon.sameAs(other)
		else -> false
		}
		}
		}
		}

		/**
		* @return an image size that conforms to the maxWidth / maxHeight parameters. It can be the same
		* instance, if the provided size was already small enough.
		*/
		private fun Size.resizeToMax(maxWidth: Int, maxHeight: Int): Size {
		if (width <= maxWidth && height <= maxHeight) {
		return this
		}

		// Calculate the scale factor for both dimensions
		val wScale =
		if (maxWidth <= 0) {
		1.0f
		} else {
		maxWidth.toFloat() / width.toFloat()
		}

		val hScale =
		if (maxHeight <= 0) {
		1.0f
		} else {
		maxHeight.toFloat() / height.toFloat()
		}

		// Scale down to the smaller scale factor
		val scale = min(wScale, hScale)
		if (scale < 1.0f) {
		val targetWidth = (width * scale).toInt()
		val targetHeight = (height * scale).toInt()

		return Size(targetWidth, targetHeight)
		}

		return this
		}

		private val Drawable.intrinsicSize
		get() = Size(/width=/ intrinsicWidth, /height=/ intrinsicHeight)

		private operator fun Size.component1() = width

		private operator fun Size.component2() = height

packages/SystemUI/src/com/android/systemui/statusbar/notification/row/BigPictureLayoutInflaterFactory.kt

0 → 100644

+52 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2023 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.statusbar.notification.row

		import android.content.Context
		import android.util.AttributeSet
		import android.view.View
		import com.android.internal.widget.BigPictureNotificationImageView
		import com.android.systemui.statusbar.notification.row.NotificationRowContentBinder.FLAG_CONTENT_VIEW_EXPANDED
		import com.android.systemui.statusbar.notification.row.NotificationRowContentBinder.InflationFlag
		import javax.inject.Inject

		class BigPictureLayoutInflaterFactory @Inject constructor() : NotifRemoteViewsFactory {

		override fun instantiate(
		row: ExpandableNotificationRow,
		@InflationFlag layoutType: Int,
		parent: View?,
		name: String,
		context: Context,
		attrs: AttributeSet
		): View? {
		// Currently the [BigPictureIconManager] only handles one view per notification.
		// Exclude other layout types for now, to make sure that we set the same iconManager
		// on only one [BigPictureNotificationImageView].
		if (layoutType != FLAG_CONTENT_VIEW_EXPANDED) {
		return null
		}

		return when (name) {
		BigPictureNotificationImageView::class.java.name ->
		BigPictureNotificationImageView(context, attrs).also { view ->
		view.setIconManager(row.bigPictureIconManager)
		}
		else -> null
		}
		}
		}

packages/SystemUI/src/com/android/systemui/statusbar/notification/row/ExpandableNotificationRow.java

+17 −0

Original line number	Diff line number	Diff line
		@@ -376,6 +376,7 @@ public class ExpandableNotificationRow extends ActivatableNotificationView
		private float mTranslationWhenRemoved;
		private boolean mWasChildInGroupWhenRemoved;
		private NotificationInlineImageResolver mImageResolver;
		private BigPictureIconManager mBigPictureIconManager;
		@Nullable
		private OnExpansionChangedListener mExpansionChangedListener;
		@Nullable
		@@ -1355,6 +1356,9 @@ public class ExpandableNotificationRow extends ActivatableNotificationView
		if (mImageResolver != null) {
		mImageResolver.updateMaxImageSizes();
		}
		if (mBigPictureIconManager != null) {
		mBigPictureIconManager.updateMaxImageSizes();
		}
		}

		public void onUiModeChanged() {
		@@ -1794,6 +1798,16 @@ public class ExpandableNotificationRow extends ActivatableNotificationView
		return mImageResolver;
		}

		public BigPictureIconManager getBigPictureIconManager() {
		return mBigPictureIconManager;
		}

		public void setBigPictureIconManager(
		BigPictureIconManager bigPictureIconManager) {
		mBigPictureIconManager = bigPictureIconManager;
		}


		/**
		* Resets this view so it can be re-used for an updated notification.
		*/
		@@ -3687,6 +3701,9 @@ public class ExpandableNotificationRow extends ActivatableNotificationView
		pw.println("no viewState!!!");
		}
		pw.println(getRoundableState().debugString());
		if (mBigPictureIconManager != null) {
		mBigPictureIconManager.dump(pw, args);
		}
		dumpBackgroundView(pw, args);

		int transientViewCount = mChildrenContainer == null

packages/SystemUI/src/com/android/systemui/statusbar/notification/row/NotificationRowModule.java

+5 −1

Original line number	Diff line number	Diff line
		@@ -60,12 +60,16 @@ public abstract class NotificationRowModule {
		@Named(NOTIF_REMOTEVIEWS_FACTORIES)
		static Set<NotifRemoteViewsFactory> provideNotifRemoteViewsFactories(
		FeatureFlags featureFlags,
		PrecomputedTextViewFactory precomputedTextViewFactory
		PrecomputedTextViewFactory precomputedTextViewFactory,
		BigPictureLayoutInflaterFactory bigPictureLayoutInflaterFactory
		) {
		final Set<NotifRemoteViewsFactory> replacementFactories = new HashSet<>();
		if (featureFlags.isEnabled(Flags.PRECOMPUTED_TEXT)) {
		replacementFactories.add(precomputedTextViewFactory);
		}
		if (featureFlags.isEnabled(Flags.BIGPICTURE_NOTIFICATION_LAZY_LOADING)) {
		replacementFactories.add(bigPictureLayoutInflaterFactory);
		}
		return replacementFactories;
		}
		}