Loading default wallpaper on the background thread (36a59431) · Commits · e / os / android_packages_apps_WallpaperPicker

WallpaperPicker/src/com/android/launcher3/WallpaperCropActivity.java

+53 −58

Original line number	Diff line number	Diff line
		@@ -21,6 +21,7 @@ import android.app.ActionBar;
		import android.app.Activity;
		import android.app.WallpaperManager;
		import android.content.Intent;
		import android.content.pm.ActivityInfo;
		import android.content.res.Configuration;
		import android.content.res.Resources;
		import android.graphics.Bitmap;
		@@ -57,20 +58,10 @@ import java.util.WeakHashMap;
		public class WallpaperCropActivity extends BaseActivity implements Handler.Callback {
		private static final String LOGTAG = "Launcher3.CropActivity";

		/**
		* The maximum bitmap size we allow to be returned through the intent.
		* Intents have a maximum of 1MB in total size. However, the Bitmap seems to
		* have some overhead to hit so that we go way below the limit here to make
		* sure the intent stays below 1MB.We should consider just returning a byte
		* array instead of a Bitmap instance to avoid overhead.
		*/
		public static final int MAX_BMAP_IN_INTENT = 750000;

		private static final int MSG_LOAD_IMAGE = 1;

		protected CropView mCropView;
		protected View mProgressView;
		protected Uri mUri;
		protected View mSetWallpaperButton;

		private HandlerThread mLoaderThread;
		@@ -91,7 +82,7 @@ public class WallpaperCropActivity extends BaseActivity implements Handler.Callb

		init();
		if (!enableRotation()) {
		setRequestedOrientation(Configuration.ORIENTATION_PORTRAIT);
		setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
		}
		}

		@@ -159,6 +150,22 @@ public class WallpaperCropActivity extends BaseActivity implements Handler.Callb
		public boolean handleMessage(Message msg) {
		if (msg.what == MSG_LOAD_IMAGE) {
		final LoadRequest req = (LoadRequest) msg.obj;
		final boolean loadSuccess;

		if (req.src == null) {
		Drawable defaultWallpaper = WallpaperManager.getInstance(this)
		.getBuiltInDrawable(mCropView.getWidth(), mCropView.getHeight(),
		false, 0.5f, 0.5f);

		if (defaultWallpaper == null) {
		loadSuccess = false;
		Log.w(LOGTAG, "Null default wallpaper encountered.");
		} else {
		loadSuccess = true;
		req.result = new DrawableTileSource(this,
		defaultWallpaper, DrawableTileSource.MAX_PREVIEW_SIZE);
		}
		} else {
		try {
		req.src.loadInBackground(new InBitmapProvider() {

		@@ -197,14 +204,17 @@ public class WallpaperCropActivity extends BaseActivity implements Handler.Callb
		}
		}

		req.result = new BitmapRegionTileSource(getContext(), req.src, mTempStorageForDecoding);
		req.result = new BitmapRegionTileSource(getContext(), req.src,
		mTempStorageForDecoding);
		loadSuccess = req.src.getLoadingState() == BitmapSource.State.LOADED;
		}

		runOnUiThread(new Runnable() {

		@Override
		public void run() {
		if (req == mCurrentLoadRequest) {
		onLoadRequestComplete(req,
		req.src.getLoadingState() == BitmapSource.State.LOADED);
		onLoadRequestComplete(req, loadSuccess);
		} else {
		addReusableBitmap(req.result);
		}
		@@ -268,21 +278,6 @@ public class WallpaperCropActivity extends BaseActivity implements Handler.Callb
		req.postExecute = postExecute;
		req.scaleProvider = scaleProvider;
		mCurrentLoadRequest = req;
		if (bitmapSource == null) {
		// Load the default wallpaper
		Drawable defaultWallpaper = WallpaperManager.getInstance(this)
		.getBuiltInDrawable(mCropView.getWidth(), mCropView.getHeight(),
		false, 0.5f, 0.5f);
		if (defaultWallpaper == null) {
		Log.w(LOGTAG, "Null default wallpaper encountered.");
		mCropView.setTileSource(null, null);
		return;
		}
		req.result = new DrawableTileSource(this,
		defaultWallpaper, DrawableTileSource.MAX_PREVIEW_SIZE);
		onLoadRequestComplete(req, true);
		return;
		}

		// Remove any pending requests
		mLoaderHandler.removeMessages(MSG_LOAD_IMAGE);