Merge "Improve launcher loading times." into sc-v2-dev am: e48d931740 am: 12e1e166fa (88a5b9a0) · Commits · e / os / android_frameworks_libs_systemui

iconloaderlib/src/com/android/launcher3/icons/cache/BaseIconCache.java

+51 −24

Original line number	Diff line number	Diff line
		@@ -38,6 +38,7 @@ import android.os.Handler;
		import android.os.LocaleList;
		import android.os.Looper;
		import android.os.Process;
		import android.os.Trace;
		import android.os.UserHandle;
		import android.text.TextUtils;
		import android.util.Log;
		@@ -306,6 +307,20 @@ public abstract class BaseIconCache {
		@NonNull ComponentName componentName, @NonNull UserHandle user,
		@NonNull Supplier<T> infoProvider, @NonNull CachingLogic<T> cachingLogic,
		boolean usePackageIcon, boolean useLowResIcon) {
		return cacheLocked(
		componentName,
		user,
		infoProvider,
		cachingLogic,
		null,
		usePackageIcon,
		useLowResIcon);
		}

		protected <T> CacheEntry cacheLocked(
		@NonNull ComponentName componentName, @NonNull UserHandle user,
		@NonNull Supplier<T> infoProvider, @NonNull CachingLogic<T> cachingLogic,
		@Nullable Cursor cursor, boolean usePackageIcon, boolean useLowResIcon) {
		assertWorkerThread();
		ComponentKey cacheKey = new ComponentKey(componentName, user);
		CacheEntry entry = mCache.get(cacheKey);
		@@ -318,8 +333,10 @@ public abstract class BaseIconCache {
		// Check the DB first.
		T object = null;
		boolean providerFetchedOnce = false;

		if (!getEntryFromDB(cacheKey, entry, useLowResIcon)) {
		boolean cacheEntryUpdated = cursor == null
		? getEntryFromDB(cacheKey, entry, useLowResIcon)
		: updateTitleAndIcon(cacheKey, entry, cursor, useLowResIcon);
		if (!cacheEntryUpdated) {
		object = infoProvider.get();
		providerFetchedOnce = true;

		@@ -459,6 +476,7 @@ public abstract class BaseIconCache {

		protected boolean getEntryFromDB(ComponentKey cacheKey, CacheEntry entry, boolean lowRes) {
		Cursor c = null;
		Trace.beginSection("loadIconIndividually");
		try {
		c = mIconDb.query(
		lowRes ? IconDB.COLUMNS_LOW_RES : IconDB.COLUMNS_HIGH_RES,
		@@ -467,6 +485,21 @@ public abstract class BaseIconCache {
		cacheKey.componentName.flattenToString(),
		Long.toString(getSerialNumberForUser(cacheKey.user))});
		if (c.moveToNext()) {
		return updateTitleAndIcon(cacheKey, entry, c, lowRes);
		}
		} catch (SQLiteException e) {
		Log.d(TAG, "Error reading icon cache", e);
		} finally {
		if (c != null) {
		c.close();
		}
		Trace.endSection();
		}
		return false;
		}

		private boolean updateTitleAndIcon(
		ComponentKey cacheKey, CacheEntry entry, Cursor c, boolean lowRes) {
		// Set the alpha to be 255, so that we never have a wrong color
		entry.bitmap = BitmapInfo.of(LOW_RES_ICON, setColorAlphaBound(c.getInt(0), 255));
		entry.title = c.getString(1);
		@@ -488,15 +521,6 @@ public abstract class BaseIconCache {
		}
		return entry.bitmap != null;
		}
		} catch (SQLiteException e) {
		Log.d(TAG, "Error reading icon cache", e);
		} finally {
		if (c != null) {
		c.close();
		}
		}
		return false;
		}

		/**
		* Returns a cursor for an arbitrary query to the cache db
		@@ -525,9 +549,12 @@ public abstract class BaseIconCache {
		public static final String COLUMN_KEYWORDS = "keywords";

		public static final String[] COLUMNS_HIGH_RES = new String[] {
		IconDB.COLUMN_ICON_COLOR, IconDB.COLUMN_LABEL, IconDB.COLUMN_ICON };
		IconDB.COLUMN_ICON_COLOR,
		IconDB.COLUMN_LABEL,
		IconDB.COLUMN_ICON,
		COLUMN_COMPONENT};
		public static final String[] COLUMNS_LOW_RES = new String[] {
		IconDB.COLUMN_ICON_COLOR, IconDB.COLUMN_LABEL };
		IconDB.COLUMN_ICON_COLOR, IconDB.COLUMN_LABEL, COLUMN_COMPONENT};

		public IconDB(Context context, String dbFileName, int iconPixelSize) {
		super(context, dbFileName, (RELEASE_VERSION << 16) + iconPixelSize, TABLE_NAME);