OutOfMemory Error seems to be fixed

src/de/podfetcher/PodcastApp.java

@@ -1,8 +1,9 @@
 package de.podfetcher;
 
-import de.podfetcher.activity.PodfetcherActivity;
-import de.podfetcher.feed.FeedManager;
 import android.app.Application;
+import android.util.Log;
+import de.podfetcher.asynctask.FeedImageLoader;
+import de.podfetcher.feed.FeedManager;
 
 public class PodcastApp extends Application {
     private static final String TAG = "PodcastApp";
@@ -24,6 +25,13 @@ public class PodcastApp extends Application {
 		manager.loadDBData(getApplicationContext());
 	}
 
+	@Override
+	public void onLowMemory() {
+		super.onLowMemory();
+		Log.w(TAG, "Received onLowOnMemory warning. Cleaning image cache...");
+		FeedImageLoader.getInstance().wipeImageCache();
+	}
+	
 	
 	
 

src/de/podfetcher/activity/FeedInfoActivity.java

@@ -58,6 +58,8 @@ public class FeedInfoActivity extends SherlockActivity {
 
 	}
 
+	
+	
 	@Override
 	public boolean onCreateOptionsMenu(Menu menu) {
 		return true;

src/de/podfetcher/activity/PodfetcherActivity.java

@@ -9,6 +9,7 @@ import android.os.Bundle;
 import android.support.v4.app.Fragment;
 import android.support.v4.app.FragmentManager;
 import android.support.v4.app.FragmentPagerAdapter;
+import android.support.v4.app.FragmentStatePagerAdapter;
 import android.support.v4.app.FragmentTransaction;
 import android.support.v4.view.ViewPager;
 import android.util.Log;
@@ -135,7 +136,7 @@ public class PodfetcherActivity extends SherlockFragmentActivity {
 		return true;
 	}
 
-	public static class MainPagerAdapter extends FragmentPagerAdapter {
+	public static class MainPagerAdapter extends FragmentStatePagerAdapter {
 		private static final int NUM_ITEMS = 3;
 
 		private static final int POS_FEEDLIST = 0;

src/de/podfetcher/adapter/FeedlistAdapter.java

@@ -62,6 +62,11 @@ public class FeedlistAdapter extends ArrayAdapter<Feed> {
 			convertView.setTag(holder);
 		} else {
 			holder = (Holder) convertView.getTag();
+			// Recycle images which are no longer in the cache
+			if (!FeedImageLoader.getInstance().isInCache(feed.getImage())) {
+				Log.d(TAG, "Deleting reference to uncached bitmap");
+				holder.image.setImageBitmap(null);
+			}
 		}
 
 		if (position == selectedItemIndex) {

src/de/podfetcher/asynctask/FeedImageLoader.java

@@ -1,8 +1,11 @@
 package de.podfetcher.asynctask;
 
+import de.podfetcher.PodcastApp;
 import de.podfetcher.R;
 import de.podfetcher.feed.FeedImage;
 import android.annotation.SuppressLint;
+import android.app.ActivityManager;
+import android.content.Context;
 import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
 import android.os.AsyncTask;
@@ -12,17 +15,24 @@ import android.widget.ImageView;
 
 /** Caches and loads FeedImage bitmaps in the background */
 public class FeedImageLoader {
+	private static final String TAG = "FeedImageLoader";
 	private static FeedImageLoader singleton;
 
 	/**
 	 * Stores references to loaded bitmaps. Bitmaps can be accessed by the id of
 	 * the FeedImage the bitmap belongs to.
 	 */
+
+	final int memClass = ((ActivityManager) PodcastApp.getInstance()
+			.getSystemService(Context.ACTIVITY_SERVICE)).getMemoryClass();
+
+	// Use 1/8th of the available memory for this memory cache.
+	final int cacheSize = 1024 * 1024 * memClass / 8;
 	private LruCache<Long, Bitmap> imageCache;
-	private static final int CACHE_SIZE = 4 * 1024 * 1024;
 
 	private FeedImageLoader() {
-		imageCache = new LruCache<Long, Bitmap>(CACHE_SIZE) {
+		Log.d(TAG, "Creating cache with size " + cacheSize);
+		imageCache = new LruCache<Long, Bitmap>(cacheSize) {
 
 			@SuppressLint("NewApi")
 			@Override
@@ -63,6 +73,14 @@ public class FeedImageLoader {
 		imageCache.put(id, bitmap);
 	}
 
+	public void wipeImageCache() {
+		imageCache.evictAll();
+	}
+	
+	public boolean isInCache(FeedImage image) {
+		return imageCache.get(image.getId()) != null;
+	}
+
 	public Bitmap getBitmapFromCache(long id) {
 		return imageCache.get(id);
 	}

src/de/podfetcher/feed/FeedManager.java

@@ -179,10 +179,10 @@ public class FeedManager {
 	public long addDownloadStatus(Context context, DownloadStatus status) {
 		PodDBAdapter adapter = new PodDBAdapter(context);
 		downloadLog.add(status);
+		adapter.open();
 		if (downloadLog.size() > DOWNLOAD_LOG_SIZE) {
 			adapter.removeDownloadStatus(downloadLog.remove(0));
 		}
-		adapter.open();
 		long result = adapter.setDownloadStatus(status);
 		adapter.close();
 		return result;

src/de/podfetcher/fragment/FeedlistFragment.java

@@ -52,6 +52,8 @@ public class FeedlistFragment extends SherlockListFragment implements
 		pActivity = null;
 	}
 
+	
+
 	@Override
 	public void onCreate(Bundle savedInstanceState) {
 		super.onCreate(savedInstanceState);
@@ -175,4 +177,5 @@ public class FeedlistFragment extends SherlockListFragment implements
 		selectedFeed = null;
 		fla.setSelectedItemIndex(FeedlistAdapter.SELECTION_NONE);
 	}
+		
 }

src/de/podfetcher/service/DownloadService.java

@@ -297,16 +297,17 @@ public class DownloadService extends Service {
 			try {
 				feed = handler.parseFeed(feed);
 				Log.d(TAG, feed.getTitle() + " parsed");
-				// Download Feed Image if provided
-				if (feed.getImage() != null) {
+				
+				feed.setDownloadId(0);
+				// Save information of feed in DB
+				savedFeed = manager.updateFeed(service, feed);
+				// Download Feed Image if provided and not downloaded
+				if (savedFeed.getImage().isDownloaded() == false) {
 					Log.d(TAG, "Feed has image; Downloading....");
 					imageId = requester.downloadImage(service, feed.getImage());
 					hasImage = true;
 				}
 
-				feed.setDownloadId(0);
-				// Save information of feed in DB
-				savedFeed = manager.updateFeed(service, feed);
 			} catch (SAXException e) {
 				successful = false;
 				e.printStackTrace();