Add some flags to reduce memory usage on svelte devices. (96d70418) · Commits · e / os / android_frameworks_base

packages/SystemUI/res/values/config.xml

+2 −0

Original line number	Diff line number	Diff line
		@@ -182,6 +182,8 @@
		<bool name="recents_has_transposed_search_bar">true</bool>
		<!-- Transposes the nav bar in landscape (only used for purposes of layout). -->
		<bool name="recents_has_transposed_nav_bar">true</bool>
		<!-- Svelte specific logic, see RecentsConfiguration.SVELTE_* constants. -->
		<integer name="recents_svelte_level">0</integer>

		<!-- Whether to enable KeyguardService or not -->
		<bool name="config_enableKeyguardService">true</bool>

packages/SystemUI/src/com/android/systemui/recents/RecentsConfiguration.java

+14 −0

Original line number	Diff line number	Diff line
		@@ -38,6 +38,18 @@ public class RecentsConfiguration {
		static RecentsConfiguration sInstance;
		static int sPrevConfigurationHashCode;

		/** Levels of svelte in increasing severity/austerity. */
		// No svelting.
		public static final int SVELTE_NONE = 0;
		// Limit thumbnail cache to number of visible thumbnails when Recents was loaded, disable
		// caching thumbnails as you scroll.
		public static final int SVELTE_LIMIT_CACHE = 1;
		// Disable the thumbnail cache, load thumbnails asynchronously when the activity loads and
		// evict all thumbnails when hidden.
		public static final int SVELTE_DISABLE_CACHE = 2;
		// Disable all thumbnail loading.
		public static final int SVELTE_DISABLE_LOADING = 3;

		/** Animations */
		public float animationPxMovementPerSecond;

		@@ -128,6 +140,7 @@ public class RecentsConfiguration {
		public boolean lockToAppEnabled;
		public boolean developerOptionsEnabled;
		public boolean debugModeEnabled;
		public int svelteLevel;

		/** Private constructor */
		private RecentsConfiguration(Context context) {
		@@ -277,6 +290,7 @@ public class RecentsConfiguration {
		useHardwareLayers = res.getBoolean(R.bool.config_recents_use_hardware_layers);
		altTabKeyDelay = res.getInteger(R.integer.recents_alt_tab_key_delay);
		fakeShadows = res.getBoolean(R.bool.config_recents_fake_shadows);
		svelteLevel = res.getInteger(R.integer.recents_svelte_level);
		}

		/** Updates the system insets */

packages/SystemUI/src/com/android/systemui/recents/model/RecentsTaskLoadPlan.java

+8 −3

Original line number	Diff line number	Diff line
		@@ -155,7 +155,8 @@ public class RecentsTaskLoadPlan {
		/**
		* Called to apply the actual loading based on the specified conditions.
		*/
		synchronized void executePlan(Options opts, RecentsTaskLoader loader) {
		synchronized void executePlan(Options opts, RecentsTaskLoader loader,
		TaskResourceLoadQueue loadQueue) {
		if (DEBUG) Log.d(TAG, "executePlan, # tasks: " + opts.numVisibleTasks +
		", # thumbnails: " + opts.numVisibleTaskThumbnails +
		", running task id: " + opts.runningTaskId);
		@@ -195,8 +196,12 @@ public class RecentsTaskLoadPlan {
		if (opts.loadThumbnails && (isRunningTask \|\| isVisibleThumbnail)) {
		if (task.thumbnail == null) {
		if (DEBUG) Log.d(TAG, "\tLoading thumbnail: " + taskKey);
		if (mConfig.svelteLevel <= RecentsConfiguration.SVELTE_LIMIT_CACHE) {
		task.thumbnail = loader.getAndUpdateThumbnail(taskKey, mSystemServicesProxy,
		true);
		} else if (mConfig.svelteLevel == RecentsConfiguration.SVELTE_DISABLE_CACHE) {
		loadQueue.addTask(task);
		}
		}
		}

packages/SystemUI/src/com/android/systemui/recents/model/RecentsTaskLoader.java

+29 −6

Original line number	Diff line number	Diff line
		@@ -94,6 +94,9 @@ class TaskResourceLoadQueue {

		/* Task resource loader */
		class TaskResourceLoader implements Runnable {
		static String TAG = "TaskResourceLoader";
		static boolean DEBUG = false;

		Context mContext;
		HandlerThread mLoadThread;
		Handler mLoadThreadHandler;
		@@ -165,6 +168,7 @@ class TaskResourceLoader implements Runnable {
		}
		}
		} else {
		RecentsConfiguration config = RecentsConfiguration.getInstance();
		SystemServicesProxy ssp = mSystemServicesProxy;
		// If we've stopped the loader, then fall thorugh to the above logic to wait on
		// the load thread
		@@ -185,6 +189,7 @@ class TaskResourceLoader implements Runnable {
		ActivityInfo info = ssp.getActivityInfo(t.key.baseIntent.getComponent(),
		t.key.userId);
		if (info != null) {
		if (DEBUG) Log.d(TAG, "Loading icon: " + t.key);
		cachedIcon = ssp.getActivityIcon(info, t.key.userId);
		}
		}
		@@ -199,12 +204,20 @@ class TaskResourceLoader implements Runnable {
		}
		// Load the thumbnail if it is stale or we haven't cached one yet
		if (cachedThumbnail == null) {
		if (config.svelteLevel < RecentsConfiguration.SVELTE_DISABLE_LOADING) {
		if (DEBUG) Log.d(TAG, "Loading thumbnail: " + t.key);
		cachedThumbnail = ssp.getTaskThumbnail(t.key.id);
		}
		if (cachedThumbnail == null) {
		cachedThumbnail = mDefaultThumbnail;
		}
		// When svelte, we trim the memory to just the visible thumbnails when
		// leaving, so don't thrash the cache as the user scrolls (just load them
		// from scratch each time)
		if (config.svelteLevel < RecentsConfiguration.SVELTE_LIMIT_CACHE) {
		mThumbnailCache.put(t.key, cachedThumbnail);
		}
		}
		if (!mCancelled) {
		// Notify that the task data has changed
		final Drawable newIcon = cachedIcon;
		@@ -267,6 +280,7 @@ public class RecentsTaskLoader {
		int mMaxThumbnailCacheSize;
		int mMaxIconCacheSize;
		int mNumVisibleTasksLoaded;
		int mNumVisibleThumbnailsLoaded;

		BitmapDrawable mDefaultApplicationIcon;
		Bitmap mDefaultThumbnail;
		@@ -392,7 +406,8 @@ public class RecentsTaskLoader {
		return thumbnail;
		}

		if (loadIfNotCached) {
		RecentsConfiguration config = RecentsConfiguration.getInstance();
		if (config.svelteLevel < RecentsConfiguration.SVELTE_DISABLE_LOADING && loadIfNotCached) {
		// Load the thumbnail from the system
		thumbnail = ssp.getTaskThumbnail(taskKey.id);
		if (thumbnail != null) {
		@@ -441,9 +456,10 @@ public class RecentsTaskLoader {
		if (opts == null) {
		throw new RuntimeException("Requires load options");
		}
		plan.executePlan(opts, this);
		plan.executePlan(opts, this, mLoadQueue);
		if (!opts.onlyLoadForCache) {
		mNumVisibleTasksLoaded = opts.numVisibleTasks;
		mNumVisibleThumbnailsLoaded = opts.numVisibleTaskThumbnails;

		// Start the loader
		mLoader.start(context);
		@@ -503,12 +519,19 @@ public class RecentsTaskLoader {
		* out of memory.
		*/
		public void onTrimMemory(int level) {
		RecentsConfiguration config = RecentsConfiguration.getInstance();
		switch (level) {
		case ComponentCallbacks2.TRIM_MEMORY_UI_HIDDEN:
		// Stop the loader immediately when the UI is no longer visible
		stopLoader();
		if (config.svelteLevel == RecentsConfiguration.SVELTE_NONE) {
		mThumbnailCache.trimToSize(Math.max(mNumVisibleTasksLoaded,
		mMaxThumbnailCacheSize / 2));
		} else if (config.svelteLevel == RecentsConfiguration.SVELTE_LIMIT_CACHE) {
		mThumbnailCache.trimToSize(mNumVisibleThumbnailsLoaded);
		} else if (config.svelteLevel >= RecentsConfiguration.SVELTE_DISABLE_CACHE) {
		mThumbnailCache.evictAll();
		}
		mApplicationIconCache.trimToSize(Math.max(mNumVisibleTasksLoaded,
		mMaxIconCacheSize / 2));
		break;