From da17447a3076c770133425f7f374ce3e7867e87c Mon Sep 17 00:00:00 2001 From: Scott Jackson Date: Tue, 18 Feb 2014 06:15:23 -0800 Subject: #167 ImageLoader converted to using SilentBackgroundTask --- .../dsub/activity/SubsonicActivity.java | 1 - src/github/daneren2005/dsub/util/ImageLoader.java | 90 ++++++---------------- 2 files changed, 23 insertions(+), 68 deletions(-) (limited to 'src/github/daneren2005') diff --git a/src/github/daneren2005/dsub/activity/SubsonicActivity.java b/src/github/daneren2005/dsub/activity/SubsonicActivity.java index 95bed957..c1534639 100644 --- a/src/github/daneren2005/dsub/activity/SubsonicActivity.java +++ b/src/github/daneren2005/dsub/activity/SubsonicActivity.java @@ -143,7 +143,6 @@ public class SubsonicActivity extends ActionBarActivity implements OnItemSelecte protected void onDestroy() { super.onDestroy(); destroyed = true; - getImageLoader().clear(); } @Override diff --git a/src/github/daneren2005/dsub/util/ImageLoader.java b/src/github/daneren2005/dsub/util/ImageLoader.java index 82c4c5d0..10b6434e 100644 --- a/src/github/daneren2005/dsub/util/ImageLoader.java +++ b/src/github/daneren2005/dsub/util/ImageLoader.java @@ -48,16 +48,12 @@ import java.util.concurrent.LinkedBlockingQueue; * * @author Sindre Mehus */ -@TargetApi(14) -public class ImageLoader implements Runnable { +public class ImageLoader { private static final String TAG = ImageLoader.class.getSimpleName(); - private static final int CONCURRENCY = 5; - private Handler mHandler = new Handler(); private Context context; private LruCache cache; private Bitmap nowPlaying; - private final BlockingQueue queue; private final int imageSizeDefault; private final int imageSizeLarge; private Drawable largeUnknownImage; @@ -66,11 +62,9 @@ public class ImageLoader implements Runnable { this.context = context; final int maxMemory = (int) (Runtime.getRuntime().maxMemory() / 1024); final int cacheSize = maxMemory / 4; - Log.d(TAG, "Max: " + cacheSize); cache = new LruCache(cacheSize) { @Override protected int sizeOf(String key, Bitmap bitmap) { - Log.d(TAG, "size: " + (bitmap.getRowBytes() * bitmap.getHeight() / 1024)); return bitmap.getRowBytes() * bitmap.getHeight() / 1024; } @@ -86,16 +80,10 @@ public class ImageLoader implements Runnable { } }; - queue = new LinkedBlockingQueue(500); - // Determine the density-dependent image sizes. imageSizeDefault = context.getResources().getDrawable(R.drawable.unknown_album).getIntrinsicHeight(); DisplayMetrics metrics = context.getResources().getDisplayMetrics(); - imageSizeLarge = (int) Math.round(Math.min(metrics.widthPixels, metrics.heightPixels)); - - for (int i = 0; i < CONCURRENCY; i++) { - new Thread(this, "ImageLoader").start(); - } + imageSizeLarge = Math.round(Math.min(metrics.widthPixels, metrics.heightPixels)); createLargeUnknownImage(context); } @@ -130,7 +118,7 @@ public class ImageLoader implements Runnable { if (!large) { setUnknownImage(view, large); } - queue.offer(new Task(view.getContext(), entry, size, imageSizeLarge, large, new ViewTaskHandler(view, crossfade))); + new ViewImageTask(view.getContext(), entry, size, imageSizeLarge, large, view, crossfade).execute(); } public void loadImage(Context context, RemoteControlClient remoteControl, MusicDirectory.Entry entry) { @@ -151,7 +139,7 @@ public class ImageLoader implements Runnable { } setUnknownImage(remoteControl); - queue.offer(new Task(context, entry, imageSizeLarge, imageSizeLarge, false, new RemoteControlClientTaskHandler(remoteControl))); + new RemoteControlClientImageTask(context, entry, imageSizeLarge, imageSizeLarge, false, remoteControl).execute(); } private String getKey(String coverArtId, int size) { @@ -233,49 +221,25 @@ public class ImageLoader implements Runnable { setImage(remoteControl, largeUnknownImage); } - public void clear() { - queue.clear(); - } - - @Override - public void run() { - while (true) { - try { - Task task = queue.take(); - task.execute(); - } catch (Throwable x) { - Log.e(TAG, "Unexpected exception in ImageLoader.", x); - } - } - } - - private class Task { + private abstract class ImageTask extends SilentBackgroundTask { private final Context mContext; private final MusicDirectory.Entry mEntry; private final int mSize; private final int mSaveSize; private final boolean mIsNowPlaying; - private ImageLoaderTaskHandler mTaskHandler; + protected Drawable mDrawable; - public Task(Context context, MusicDirectory.Entry entry, int size, int saveSize, boolean isNowPlaying, ImageLoaderTaskHandler taskHandler) { + public ImageTask(Context context, MusicDirectory.Entry entry, int size, int saveSize, boolean isNowPlaying) { + super(context); mContext = context; mEntry = entry; mSize = size; mSaveSize = saveSize; mIsNowPlaying = isNowPlaying; - mTaskHandler = taskHandler; } - public void execute() { - try { - loadImage(); - } catch(OutOfMemoryError e) { - Log.w(TAG, "Ran out of memory trying to load image, try cleanup and retry"); - cache.evictAll(); - System.gc(); - } - } - public void loadImage() { + @Override + protected Void doInBackground() throws Throwable { try { MusicService musicService = MusicServiceFactory.getMusicService(mContext); Bitmap bitmap = musicService.getCoverArt(mContext, mEntry, mSize, null); @@ -287,51 +251,43 @@ public class ImageLoader implements Runnable { nowPlaying = bitmap; } - final Drawable drawable = Util.createDrawableFromBitmap(mContext, bitmap); - mTaskHandler.setDrawable(drawable); - mHandler.post(mTaskHandler); + mDrawable = Util.createDrawableFromBitmap(mContext, bitmap); } catch (Throwable x) { Log.e(TAG, "Failed to download album art.", x); } - } - } - - private abstract class ImageLoaderTaskHandler implements Runnable { - - protected Drawable mDrawable; - public void setDrawable(Drawable drawable) { - mDrawable = drawable; + return null; } - } - private class ViewTaskHandler extends ImageLoaderTaskHandler { - + private class ViewImageTask extends ImageTask { protected boolean mCrossfade; private View mView; - public ViewTaskHandler(View view, boolean crossfade) { - mCrossfade = crossfade; + public ViewImageTask(Context context, MusicDirectory.Entry entry, int size, int saveSize, boolean isNowPlaying, View view, boolean crossfade) { + super(context, entry, size, saveSize, isNowPlaying); + mView = view; + mCrossfade = crossfade; } @Override - public void run() { + protected void done(Void result) { setImage(mView, mDrawable, mCrossfade); } } - private class RemoteControlClientTaskHandler extends ImageLoaderTaskHandler { - + private class RemoteControlClientImageTask extends ImageTask { private RemoteControlClient mRemoteControl; - public RemoteControlClientTaskHandler(RemoteControlClient remoteControl) { + public RemoteControlClientImageTask(Context context, MusicDirectory.Entry entry, int size, int saveSize, boolean isNowPlaying, RemoteControlClient remoteControl) { + super(context, entry, size, saveSize, isNowPlaying); + mRemoteControl = remoteControl; } @Override - public void run() { + protected void done(Void result) { setImage(mRemoteControl, mDrawable); } } -- cgit v1.2.3