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AntennaPod
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Code Issues Packages Projects Releases Wiki Activity

Imageloader tasks are now submitted to an executor service

This commit is contained in:
daniel oeh 2012-08-03 17:00:00 +02:00
parent a0cedbcbed
commit 93812142da
9 changed files with 94 additions and 58 deletions
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1
res/layout/miroguide_channellist_item.xml
View File

@ -6,6 +6,7 @@
<ImageView
android:id="@+id/imgvChannelimage"
android:src="@drawable/default_cover"
android:layout_width="55dip"
android:layout_height="55dip"
android:layout_alignParentLeft="true"

2
src/de/danoeh/antennapod/activity/MiroGuideMainActivity.java
View File

@ -103,6 +103,8 @@ public class MiroGuideMainActivity extends SherlockListActivity {
} catch (MiroGuideException e) {
e.printStackTrace();
exception = e;
} finally {
service.close();
}
return null;
}

5
src/de/danoeh/antennapod/adapter/MiroGuideChannelListAdapter.java
View File

@ -10,6 +10,7 @@ import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.TextView;
import de.danoeh.antennapod.R;
import de.danoeh.antennapod.asynctask.FeedImageLoader;
import de.danoeh.antennapod.miroguide.model.MiroChannel;
public class MiroGuideChannelListAdapter extends ArrayAdapter<MiroChannel> {
@ -41,9 +42,9 @@ public class MiroGuideChannelListAdapter extends ArrayAdapter<MiroChannel> {
holder = (Holder) convertView.getTag();
}
holder.cover.setVisibility(View.GONE);
holder.title.setText(channel.getName());
holder.cover.setTag(channel);
FeedImageLoader.getInstance().loadMiroGuideThumbnail(channel, holder.cover);
return convertView;
}

43
src/de/danoeh/antennapod/asynctask/BitmapDecodeWorkerTask.java
View File

@ -6,6 +6,7 @@ import android.annotation.SuppressLint;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.AsyncTask;
import android.os.Handler;
import android.util.Log;
import android.widget.ImageView;
import de.danoeh.antennapod.AppConfig;
@ -13,8 +14,7 @@ import de.danoeh.antennapod.PodcastApp;
import de.danoeh.antennapod.R;
import de.danoeh.antennapod.util.BitmapDecoder;
public abstract class BitmapDecodeWorkerTask extends
AsyncTask<Void, Void, Void> {
public abstract class BitmapDecodeWorkerTask extends Thread {
protected int PREFERRED_LENGTH;
@ -30,8 +30,12 @@ public abstract class BitmapDecodeWorkerTask extends
protected String fileUrl;
public BitmapDecodeWorkerTask(ImageView target, String fileUrl, int length) {
private Handler handler;
public BitmapDecodeWorkerTask(Handler handler, ImageView target,
String fileUrl, int length) {
super();
this.handler = handler;
this.target = target;
this.fileUrl = fileUrl;
this.baseLength = length;
@ -44,9 +48,7 @@ public abstract class BitmapDecodeWorkerTask extends
*/
abstract protected boolean tagsMatching(ImageView target);
@Override
protected void onPostExecute(Void result) {
super.onPostExecute(result);
protected void onPostExecute() {
// check if imageview is still supposed to display this image
if (tagsMatching(target)) {
target.setImageBitmap(bitmap);
@ -57,12 +59,7 @@ public abstract class BitmapDecodeWorkerTask extends
}
@Override
protected void onPreExecute() {
super.onPreExecute();
}
@Override
protected Void doInBackground(Void... params) {
public void run() {
File f = null;
if (fileUrl != null) {
f = new File(fileUrl);
@ -81,7 +78,18 @@ public abstract class BitmapDecodeWorkerTask extends
} else {
onInvalidFileUrl();
}
return null;
endBackgroundTask();
}
protected final void endBackgroundTask() {
handler.post(new Runnable() {
@Override
public void run() {
onPostExecute();
}
});
}
protected void onInvalidFileUrl() {
@ -98,13 +106,4 @@ public abstract class BitmapDecodeWorkerTask extends
loader.addBitmapToThumbnailCache(fileUrl, bitmap);
}
}
@SuppressLint("NewApi")
public void executeAsync() {
if (android.os.Build.VERSION.SDK_INT > android.os.Build.VERSION_CODES.GINGERBREAD_MR1) {
executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
} else {
execute();
}
}
}

64
src/de/danoeh/antennapod/asynctask/FeedImageLoader.java
View File

@ -1,6 +1,9 @@
package de.danoeh.antennapod.asynctask;
import java.io.IOException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.ThreadFactory;
import android.annotation.SuppressLint;
import android.app.ActivityManager;
@ -8,6 +11,7 @@ import android.content.Context;
import android.content.pm.PackageManager.NameNotFoundException;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Handler;
import android.support.v4.util.LruCache;
import android.util.Log;
import android.widget.ImageView;
@ -34,6 +38,9 @@ public class FeedImageLoader {
private static final int CACHE_SIZE = 20 * 1024 * 1024;
private static final int VALUE_SIZE = 500 * 1024;
private Handler handler;
private ExecutorService executor;
/**
* Stores references to loaded bitmaps. Bitmaps can be accessed by the id of
* the FeedImage the bitmap belongs to.
@ -50,6 +57,18 @@ public class FeedImageLoader {
private LruCache<String, Bitmap> thumbnailCache;
private FeedImageLoader() {
handler = new Handler();
executor = Executors.newFixedThreadPool(Runtime.getRuntime()
.availableProcessors(), new ThreadFactory() {
@Override
public Thread newThread(Runnable r) {
Thread t = new Thread(r);
t.setPriority(Thread.MIN_PRIORITY);
return t;
}
});
coverCache = new LruCache<String, Bitmap>(coverCacheSize) {
@SuppressLint("NewApi")
@ -110,8 +129,8 @@ public class FeedImageLoader {
} else {
target.setImageResource(R.drawable.default_cover);
FeedImageDecodeWorkerTask worker = new FeedImageDecodeWorkerTask(
target, image, LENGTH_BASE_COVER);
worker.executeAsync();
handler, target, image, LENGTH_BASE_COVER);
executor.submit(worker);
}
} else {
target.setImageResource(R.drawable.default_cover);
@ -126,8 +145,8 @@ public class FeedImageLoader {
} else {
target.setImageResource(R.drawable.default_cover);
FeedImageDecodeWorkerTask worker = new FeedImageDecodeWorkerTask(
target, image, LENGTH_BASE_THUMBNAIL);
worker.executeAsync();
handler, target, image, LENGTH_BASE_THUMBNAIL);
executor.submit(worker);
}
} else {
target.setImageResource(R.drawable.default_cover);
@ -136,20 +155,26 @@ public class FeedImageLoader {
public void loadMiroGuideThumbnail(MiroChannel channel, ImageView target) {
if (channel.getThumbnailUrl() != null) {
Bitmap bitmap = getBitmapFromThumbnailCache(channel.getThumbnailUrl());
if (bitmap != null) {
Bitmap bitmap = getBitmapFromThumbnailCache(channel
.getThumbnailUrl());
if (bitmap == null) {
boolean isInDiskCache = false;
try {
isInDiskCache = isInThumbnailDiskCache(channel.getThumbnailUrl());
isInDiskCache = isInThumbnailDiskCache(channel
.getThumbnailUrl());
} catch (IOException e) {
e.printStackTrace();
Log.e(TAG, "Error when trying to read disk cache");
}
if (isInDiskCache) {
new MiroGuideDiskCacheLoader(target, channel, LENGTH_BASE_THUMBNAIL).executeAsync();
executor.submit(new MiroGuideDiskCacheLoader(handler,
target, channel, LENGTH_BASE_THUMBNAIL));
} else {
new MiroGuideThumbnailDownloader(target, channel, LENGTH_BASE_THUMBNAIL).executeAsync();
executor.submit(new MiroGuideThumbnailDownloader(handler,
target, channel, LENGTH_BASE_THUMBNAIL));
}
} else {
target.setImageBitmap(bitmap);
}
} else {
target.setImageResource(R.drawable.default_cover);
@ -196,9 +221,9 @@ public class FeedImageLoader {
protected FeedImage image;
public FeedImageDecodeWorkerTask(ImageView target, FeedImage image,
int length) {
super(target, image.getFile_url(), length);
public FeedImageDecodeWorkerTask(Handler handler, ImageView target,
FeedImage image, int length) {
super(handler, target, image.getFile_url(), length);
this.image = image;
}
@ -227,14 +252,13 @@ public class FeedImageLoader {
private MiroChannel channel;
public MiroGuideDiskCacheLoader(ImageView target, MiroChannel channel,
int length) {
super(target, channel.getThumbnailUrl(), length);
public MiroGuideDiskCacheLoader(Handler handler, ImageView target,
MiroChannel channel, int length) {
super(handler, target, channel.getThumbnailUrl(), length);
this.channel = channel;
}
@Override
protected Void doInBackground(Void... params) {
public void run() {
try {
DiskLruCache cache = openThubmnailDiskCache();
Snapshot snapshot = cache.get(fileUrl);
@ -244,13 +268,13 @@ public class FeedImageLoader {
e.printStackTrace();
exception = e;
}
return null;
endBackgroundTask();
}
@Override
protected void onPostExecute(Void result) {
protected void onPostExecute() {
if (exception != null) {
super.onPostExecute(result);
super.onPostExecute();
} else {
Log.e(TAG, "Failed to load bitmap from disk cache");
}

19
src/de/danoeh/antennapod/asynctask/MiroGuideThumbnailDownloader.java
View File

@ -19,6 +19,7 @@ import de.danoeh.antennapod.miroguide.model.MiroChannel;
import de.danoeh.antennapod.util.BitmapDecoder;
import android.graphics.Bitmap;
import android.os.Handler;
import android.util.Log;
import android.widget.ImageView;
@ -30,30 +31,29 @@ public class MiroGuideThumbnailDownloader extends BitmapDecodeWorkerTask {
private MiroChannel miroChannel;
public MiroGuideThumbnailDownloader(ImageView target,
public MiroGuideThumbnailDownloader(Handler handler, ImageView target,
MiroChannel miroChannel, int length) {
super(target, miroChannel.getThumbnailUrl(), length);
super(handler, target, miroChannel.getThumbnailUrl(), length);
this.miroChannel = miroChannel;
}
@Override
protected void onPostExecute(Void result) {
protected void onPostExecute() {
if (exception != null) {
super.onPostExecute(result);
super.onPostExecute();
} else {
Log.e(TAG, "Failed to download thumbnail");
}
}
@Override
protected Void doInBackground(Void... params) {
public void run() {
// Download file to cache folder
URL url = null;
try {
url = new URL(fileUrl);
} catch (MalformedURLException e) {
e.printStackTrace();
return null;
endBackgroundTask();
}
File destination = new File(PodcastApp.getInstance().getCacheDir(),
Integer.toString(fileUrl.hashCode()));
@ -73,6 +73,7 @@ public class MiroGuideThumbnailDownloader extends BitmapDecodeWorkerTask {
output.write(inputBuffer, 0, count);
}
output.close();
connection.disconnect();
if (AppConfig.DEBUG) Log.d(TAG, "MiroGuide thumbnail downloaded");
// Get a smaller version of the bitmap and store it inside the
// LRU
@ -91,13 +92,13 @@ public class MiroGuideThumbnailDownloader extends BitmapDecodeWorkerTask {
}
} catch (IOException e) {
e.printStackTrace();
return null;
endBackgroundTask();
} finally {
if (destination.exists()) {
destination.delete();
}
}
return null;
endBackgroundTask();
}
@Override

2
src/de/danoeh/antennapod/fragment/MiroGuideChannellistFragment.java
View File

@ -227,6 +227,8 @@ public class MiroGuideChannellistFragment extends SherlockListFragment {
} catch (MiroGuideException e) {
exception = e;
e.printStackTrace();
} finally {
service.close();
}
return null;
}

8
src/de/danoeh/antennapod/miroguide/con/MiroGuideConnector.java
View File

@ -15,10 +15,11 @@ import org.json.JSONException;
import org.json.JSONObject;
import android.net.Uri;
import android.net.http.AndroidHttpClient;
/** Executes HTTP requests and returns the results. */
public class MiroGuideConnector {
private HttpClient httpClient;
private AndroidHttpClient httpClient;
private static final String HOST_URL = "https://www.miroguide.com/api/";
private static final String PATH_GET_CHANNELS = "get_channels";
@ -26,11 +27,11 @@ public class MiroGuideConnector {
private static final String PATH_GET_CHANNEL = "get_channel";
public MiroGuideConnector() {
httpClient = new DefaultHttpClient();
httpClient = AndroidHttpClient.newInstance(null);
}
public void shutdown() {
httpClient.getConnectionManager().shutdown();
httpClient.close();
}
private Uri.Builder getBaseURIBuilder(String path) {
@ -78,6 +79,7 @@ public class MiroGuideConnector {
BufferedReader reader = new BufferedReader(
new InputStreamReader(in));
result = reader.readLine();
in.close();
}
} else {
throw new MiroGuideException(response.getStatusLine()

4
src/de/danoeh/antennapod/miroguide/con/MiroGuideService.java
View File

@ -41,6 +41,10 @@ public class MiroGuideService {
connector = new MiroGuideConnector();
}
public void close() {
connector.shutdown();
}
public String[] getCategories() throws MiroGuideException {
JSONArray resultArray = connector.getArrayResponse(connector
.createListCategoriesURI());