Imageloader tasks are now submitted to an executor service
This commit is contained in:
parent
a0cedbcbed
commit
93812142da
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@ -6,6 +6,7 @@
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<ImageView
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android:id="@+id/imgvChannelimage"
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android:src="@drawable/default_cover"
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android:layout_width="55dip"
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android:layout_height="55dip"
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android:layout_alignParentLeft="true"
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@ -103,6 +103,8 @@ public class MiroGuideMainActivity extends SherlockListActivity {
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} catch (MiroGuideException e) {
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e.printStackTrace();
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exception = e;
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} finally {
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service.close();
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}
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return null;
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}
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@ -10,6 +10,7 @@ import android.widget.ArrayAdapter;
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import android.widget.ImageView;
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import android.widget.TextView;
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import de.danoeh.antennapod.R;
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import de.danoeh.antennapod.asynctask.FeedImageLoader;
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import de.danoeh.antennapod.miroguide.model.MiroChannel;
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public class MiroGuideChannelListAdapter extends ArrayAdapter<MiroChannel> {
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@ -41,9 +42,9 @@ public class MiroGuideChannelListAdapter extends ArrayAdapter<MiroChannel> {
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holder = (Holder) convertView.getTag();
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}
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holder.cover.setVisibility(View.GONE);
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holder.title.setText(channel.getName());
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holder.cover.setTag(channel);
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FeedImageLoader.getInstance().loadMiroGuideThumbnail(channel, holder.cover);
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return convertView;
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}
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@ -6,6 +6,7 @@ import android.annotation.SuppressLint;
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import android.graphics.Bitmap;
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import android.graphics.BitmapFactory;
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import android.os.AsyncTask;
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import android.os.Handler;
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import android.util.Log;
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import android.widget.ImageView;
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import de.danoeh.antennapod.AppConfig;
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@ -13,8 +14,7 @@ import de.danoeh.antennapod.PodcastApp;
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import de.danoeh.antennapod.R;
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import de.danoeh.antennapod.util.BitmapDecoder;
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public abstract class BitmapDecodeWorkerTask extends
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AsyncTask<Void, Void, Void> {
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public abstract class BitmapDecodeWorkerTask extends Thread {
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protected int PREFERRED_LENGTH;
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@ -30,8 +30,12 @@ public abstract class BitmapDecodeWorkerTask extends
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protected String fileUrl;
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public BitmapDecodeWorkerTask(ImageView target, String fileUrl, int length) {
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private Handler handler;
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public BitmapDecodeWorkerTask(Handler handler, ImageView target,
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String fileUrl, int length) {
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super();
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this.handler = handler;
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this.target = target;
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this.fileUrl = fileUrl;
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this.baseLength = length;
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@ -44,9 +48,7 @@ public abstract class BitmapDecodeWorkerTask extends
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*/
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abstract protected boolean tagsMatching(ImageView target);
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@Override
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protected void onPostExecute(Void result) {
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super.onPostExecute(result);
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protected void onPostExecute() {
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// check if imageview is still supposed to display this image
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if (tagsMatching(target)) {
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target.setImageBitmap(bitmap);
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@ -57,12 +59,7 @@ public abstract class BitmapDecodeWorkerTask extends
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}
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@Override
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protected void onPreExecute() {
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super.onPreExecute();
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}
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@Override
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protected Void doInBackground(Void... params) {
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public void run() {
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File f = null;
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if (fileUrl != null) {
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f = new File(fileUrl);
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@ -81,7 +78,18 @@ public abstract class BitmapDecodeWorkerTask extends
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} else {
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onInvalidFileUrl();
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}
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return null;
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endBackgroundTask();
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}
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protected final void endBackgroundTask() {
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handler.post(new Runnable() {
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@Override
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public void run() {
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onPostExecute();
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}
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});
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}
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protected void onInvalidFileUrl() {
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@ -98,13 +106,4 @@ public abstract class BitmapDecodeWorkerTask extends
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loader.addBitmapToThumbnailCache(fileUrl, bitmap);
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}
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}
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@SuppressLint("NewApi")
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public void executeAsync() {
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if (android.os.Build.VERSION.SDK_INT > android.os.Build.VERSION_CODES.GINGERBREAD_MR1) {
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executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
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} else {
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execute();
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}
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}
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}
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@ -1,6 +1,9 @@
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package de.danoeh.antennapod.asynctask;
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import java.io.IOException;
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import java.util.concurrent.ExecutorService;
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import java.util.concurrent.Executors;
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import java.util.concurrent.ThreadFactory;
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import android.annotation.SuppressLint;
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import android.app.ActivityManager;
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@ -8,6 +11,7 @@ import android.content.Context;
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import android.content.pm.PackageManager.NameNotFoundException;
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import android.graphics.Bitmap;
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import android.graphics.BitmapFactory;
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import android.os.Handler;
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import android.support.v4.util.LruCache;
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import android.util.Log;
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import android.widget.ImageView;
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@ -34,6 +38,9 @@ public class FeedImageLoader {
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private static final int CACHE_SIZE = 20 * 1024 * 1024;
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private static final int VALUE_SIZE = 500 * 1024;
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private Handler handler;
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private ExecutorService executor;
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/**
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* Stores references to loaded bitmaps. Bitmaps can be accessed by the id of
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* the FeedImage the bitmap belongs to.
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@ -50,6 +57,18 @@ public class FeedImageLoader {
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private LruCache<String, Bitmap> thumbnailCache;
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private FeedImageLoader() {
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handler = new Handler();
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executor = Executors.newFixedThreadPool(Runtime.getRuntime()
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.availableProcessors(), new ThreadFactory() {
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@Override
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public Thread newThread(Runnable r) {
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Thread t = new Thread(r);
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t.setPriority(Thread.MIN_PRIORITY);
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return t;
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}
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});
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coverCache = new LruCache<String, Bitmap>(coverCacheSize) {
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@SuppressLint("NewApi")
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@ -110,8 +129,8 @@ public class FeedImageLoader {
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} else {
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target.setImageResource(R.drawable.default_cover);
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FeedImageDecodeWorkerTask worker = new FeedImageDecodeWorkerTask(
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target, image, LENGTH_BASE_COVER);
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worker.executeAsync();
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handler, target, image, LENGTH_BASE_COVER);
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executor.submit(worker);
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}
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} else {
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target.setImageResource(R.drawable.default_cover);
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@ -126,30 +145,36 @@ public class FeedImageLoader {
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} else {
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target.setImageResource(R.drawable.default_cover);
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FeedImageDecodeWorkerTask worker = new FeedImageDecodeWorkerTask(
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target, image, LENGTH_BASE_THUMBNAIL);
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worker.executeAsync();
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handler, target, image, LENGTH_BASE_THUMBNAIL);
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executor.submit(worker);
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}
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} else {
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target.setImageResource(R.drawable.default_cover);
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}
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}
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public void loadMiroGuideThumbnail(MiroChannel channel, ImageView target) {
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if (channel.getThumbnailUrl() != null) {
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Bitmap bitmap = getBitmapFromThumbnailCache(channel.getThumbnailUrl());
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if (bitmap != null) {
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Bitmap bitmap = getBitmapFromThumbnailCache(channel
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.getThumbnailUrl());
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if (bitmap == null) {
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boolean isInDiskCache = false;
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try {
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isInDiskCache = isInThumbnailDiskCache(channel.getThumbnailUrl());
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isInDiskCache = isInThumbnailDiskCache(channel
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.getThumbnailUrl());
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} catch (IOException e) {
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e.printStackTrace();
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Log.e(TAG, "Error when trying to read disk cache");
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}
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if (isInDiskCache) {
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new MiroGuideDiskCacheLoader(target, channel, LENGTH_BASE_THUMBNAIL).executeAsync();
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executor.submit(new MiroGuideDiskCacheLoader(handler,
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target, channel, LENGTH_BASE_THUMBNAIL));
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} else {
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new MiroGuideThumbnailDownloader(target, channel, LENGTH_BASE_THUMBNAIL).executeAsync();
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executor.submit(new MiroGuideThumbnailDownloader(handler,
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target, channel, LENGTH_BASE_THUMBNAIL));
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}
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} else {
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target.setImageBitmap(bitmap);
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}
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} else {
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target.setImageResource(R.drawable.default_cover);
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@ -184,7 +209,7 @@ public class FeedImageLoader {
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public void addBitmapToCoverCache(String key, Bitmap bitmap) {
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coverCache.put(key, bitmap);
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}
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public boolean isInThumbnailDiskCache(String key) throws IOException {
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DiskLruCache cache = openThubmnailDiskCache();
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return cache.get(key) != null;
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@ -196,9 +221,9 @@ public class FeedImageLoader {
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protected FeedImage image;
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public FeedImageDecodeWorkerTask(ImageView target, FeedImage image,
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int length) {
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super(target, image.getFile_url(), length);
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public FeedImageDecodeWorkerTask(Handler handler, ImageView target,
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FeedImage image, int length) {
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super(handler, target, image.getFile_url(), length);
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this.image = image;
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}
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@ -227,14 +252,13 @@ public class FeedImageLoader {
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private MiroChannel channel;
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public MiroGuideDiskCacheLoader(ImageView target, MiroChannel channel,
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int length) {
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super(target, channel.getThumbnailUrl(), length);
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public MiroGuideDiskCacheLoader(Handler handler, ImageView target,
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MiroChannel channel, int length) {
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super(handler, target, channel.getThumbnailUrl(), length);
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this.channel = channel;
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}
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@Override
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protected Void doInBackground(Void... params) {
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public void run() {
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try {
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DiskLruCache cache = openThubmnailDiskCache();
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Snapshot snapshot = cache.get(fileUrl);
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e.printStackTrace();
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exception = e;
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}
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return null;
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endBackgroundTask();
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}
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@Override
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protected void onPostExecute(Void result) {
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protected void onPostExecute() {
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if (exception != null) {
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super.onPostExecute(result);
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super.onPostExecute();
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} else {
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Log.e(TAG, "Failed to load bitmap from disk cache");
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}
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@ -19,6 +19,7 @@ import de.danoeh.antennapod.miroguide.model.MiroChannel;
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import de.danoeh.antennapod.util.BitmapDecoder;
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import android.graphics.Bitmap;
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import android.os.Handler;
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import android.util.Log;
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import android.widget.ImageView;
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@ -30,30 +31,29 @@ public class MiroGuideThumbnailDownloader extends BitmapDecodeWorkerTask {
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private MiroChannel miroChannel;
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public MiroGuideThumbnailDownloader(ImageView target,
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public MiroGuideThumbnailDownloader(Handler handler, ImageView target,
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MiroChannel miroChannel, int length) {
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super(target, miroChannel.getThumbnailUrl(), length);
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super(handler, target, miroChannel.getThumbnailUrl(), length);
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this.miroChannel = miroChannel;
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}
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@Override
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protected void onPostExecute(Void result) {
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protected void onPostExecute() {
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if (exception != null) {
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super.onPostExecute(result);
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super.onPostExecute();
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} else {
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Log.e(TAG, "Failed to download thumbnail");
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}
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}
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@Override
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protected Void doInBackground(Void... params) {
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public void run() {
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// Download file to cache folder
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URL url = null;
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try {
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url = new URL(fileUrl);
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} catch (MalformedURLException e) {
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e.printStackTrace();
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return null;
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endBackgroundTask();
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}
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File destination = new File(PodcastApp.getInstance().getCacheDir(),
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Integer.toString(fileUrl.hashCode()));
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output.write(inputBuffer, 0, count);
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}
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output.close();
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connection.disconnect();
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if (AppConfig.DEBUG) Log.d(TAG, "MiroGuide thumbnail downloaded");
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// Get a smaller version of the bitmap and store it inside the
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// LRU
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@ -91,13 +92,13 @@ public class MiroGuideThumbnailDownloader extends BitmapDecodeWorkerTask {
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}
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} catch (IOException e) {
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e.printStackTrace();
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return null;
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endBackgroundTask();
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} finally {
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if (destination.exists()) {
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destination.delete();
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}
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}
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return null;
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endBackgroundTask();
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}
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@Override
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@ -227,6 +227,8 @@ public class MiroGuideChannellistFragment extends SherlockListFragment {
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} catch (MiroGuideException e) {
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exception = e;
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e.printStackTrace();
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} finally {
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service.close();
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}
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return null;
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}
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@ -15,10 +15,11 @@ import org.json.JSONException;
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import org.json.JSONObject;
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import android.net.Uri;
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import android.net.http.AndroidHttpClient;
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/** Executes HTTP requests and returns the results. */
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public class MiroGuideConnector {
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private HttpClient httpClient;
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private AndroidHttpClient httpClient;
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private static final String HOST_URL = "https://www.miroguide.com/api/";
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private static final String PATH_GET_CHANNELS = "get_channels";
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private static final String PATH_GET_CHANNEL = "get_channel";
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public MiroGuideConnector() {
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httpClient = new DefaultHttpClient();
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httpClient = AndroidHttpClient.newInstance(null);
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}
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public void shutdown() {
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httpClient.getConnectionManager().shutdown();
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httpClient.close();
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}
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private Uri.Builder getBaseURIBuilder(String path) {
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@ -78,6 +79,7 @@ public class MiroGuideConnector {
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BufferedReader reader = new BufferedReader(
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new InputStreamReader(in));
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result = reader.readLine();
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in.close();
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}
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} else {
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throw new MiroGuideException(response.getStatusLine()
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@ -40,6 +40,10 @@ public class MiroGuideService {
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public MiroGuideService() {
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connector = new MiroGuideConnector();
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}
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public void close() {
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connector.shutdown();
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}
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public String[] getCategories() throws MiroGuideException {
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JSONArray resultArray = connector.getArrayResponse(connector
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