Improved AddFeedActivity layout, added gpodder.net toplist fragment

6 files changed, 265 insertions, 23 deletions

diff --git a/src/de/danoeh/antennapod/activity/AddFeedActivity.java b/src/de/danoeh/antennapod/activity/AddFeedActivity.java
index 4085fc8d2..ad1adfa6b 100644
--- a/src/de/danoeh/antennapod/activity/AddFeedActivity.java
+++ b/src/de/danoeh/antennapod/activity/AddFeedActivity.java
@@ -5,6 +5,7 @@ import java.util.Date;
 import android.support.v7.app.ActionBarActivity;
 import android.view.Menu;
 import android.view.MenuItem;
+import de.danoeh.antennapod.activity.gpoddernet.GpodnetMainActivity;
 import org.apache.commons.lang3.StringUtils;
 
 import android.app.AlertDialog;
@@ -37,6 +38,7 @@ public class AddFeedActivity extends ActionBarActivity {
 
 	private EditText etxtFeedurl;
 	private Button butBrowseMiroGuide;
+    private Button butBrowserGpoddernet;
 	private Button butOpmlImport;
 	private Button butConfirm;
 	private Button butCancel;
@@ -63,6 +65,7 @@ public class AddFeedActivity extends ActionBarActivity {
 		}
 
 		butBrowseMiroGuide = (Button) findViewById(R.id.butBrowseMiroguide);
+        butBrowserGpoddernet = (Button) findViewById(R.id.butBrowseGpoddernet);
 		butOpmlImport = (Button) findViewById(R.id.butOpmlImport);
 		butConfirm = (Button) findViewById(R.id.butConfirm);
 		butCancel = (Button) findViewById(R.id.butCancel);
@@ -75,6 +78,13 @@ public class AddFeedActivity extends ActionBarActivity {
 						MiroGuideMainActivity.class));
 			}
 		});
+        butBrowserGpoddernet.setOnClickListener(new OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                startActivity(new Intent(AddFeedActivity.this,
+                        GpodnetMainActivity.class));
+            }
+        });
 
 		butOpmlImport.setOnClickListener(new OnClickListener() {
 
diff --git a/src/de/danoeh/antennapod/activity/gpoddernet/GpodnetMainActivity.java b/src/de/danoeh/antennapod/activity/gpoddernet/GpodnetMainActivity.java
new file mode 100644
index 000000000..316ea2e88
--- /dev/null
+++ b/src/de/danoeh/antennapod/activity/gpoddernet/GpodnetMainActivity.java
@@ -0,0 +1,25 @@
+package de.danoeh.antennapod.activity.gpoddernet;
+
+import android.os.Bundle;
+import android.support.v4.app.FragmentTransaction;
+import android.support.v7.app.ActionBarActivity;
+import de.danoeh.antennapod.R;
+import de.danoeh.antennapod.fragment.gpodnet.PodcastTopListFragment;
+
+/**
+ * Created by daniel on 22.08.13.
+ */
+public class GpodnetMainActivity extends ActionBarActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        setContentView(R.layout.gpodnet_main);
+        FragmentTransaction transaction = getSupportFragmentManager()
+                .beginTransaction();
+        PodcastTopListFragment topListFragment = new PodcastTopListFragment();
+        transaction.replace(R.id.toplist_fragment, topListFragment);
+        transaction.commit();
+    }
+}
diff --git a/src/de/danoeh/antennapod/adapter/gpodnet/PodcastListAdapter.java b/src/de/danoeh/antennapod/adapter/gpodnet/PodcastListAdapter.java
new file mode 100644
index 000000000..795b17917
--- /dev/null
+++ b/src/de/danoeh/antennapod/adapter/gpodnet/PodcastListAdapter.java
@@ -0,0 +1,63 @@
+package de.danoeh.antennapod.adapter.gpodnet;
+
+import android.content.Context;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ArrayAdapter;
+import android.widget.ImageView;
+import android.widget.TextView;
+import de.danoeh.antennapod.R;
+import de.danoeh.antennapod.asynctask.ImageDiskCache;
+import de.danoeh.antennapod.gpoddernet.model.GpodnetPodcast;
+
+import java.util.List;
+
+/**
+ * Adapter for displaying a list of GPodnetPodcast-Objects.
+ */
+public class PodcastListAdapter extends ArrayAdapter<GpodnetPodcast> {
+    private final ImageDiskCache diskCache;
+    private final int thumbnailLength;
+
+    public PodcastListAdapter(Context context, int resource, List<GpodnetPodcast> objects) {
+        super(context, resource, objects);
+        diskCache = ImageDiskCache.getDefaultInstance();
+        thumbnailLength = (int) context.getResources().getDimension(R.dimen.thumbnail_length);
+    }
+
+    @Override
+    public View getView(int position, View convertView, ViewGroup parent) {
+        Holder holder;
+
+        GpodnetPodcast podcast = getItem(position);
+
+        // Inflate Layout
+        if (convertView == null) {
+            holder = new Holder();
+            LayoutInflater inflater = (LayoutInflater) getContext()
+                    .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
+
+            convertView = inflater.inflate(R.layout.gpodnet_podcast_listitem, null);
+            holder.title = (TextView) convertView.findViewById(R.id.txtvTitle);
+            holder.description = (TextView) convertView.findViewById(R.id.txtvDescription);
+            holder.image = (ImageView) convertView.findViewById(R.id.imgvCover);
+
+            convertView.setTag(holder);
+        } else {
+            holder = (Holder) convertView.getTag();
+        }
+
+        holder.title.setText(podcast.getTitle());
+        holder.description.setText(podcast.getDescription());
+        diskCache.loadThumbnailBitmap(podcast.getLogoUrl(), holder.image, thumbnailLength);
+
+        return convertView;
+    }
+
+    static class Holder {
+        TextView title;
+        TextView description;
+        ImageView image;
+    }
+}
diff --git a/src/de/danoeh/antennapod/asynctask/ImageDiskCache.java b/src/de/danoeh/antennapod/asynctask/ImageDiskCache.java
index 938f5d968..e0675982f 100644
--- a/src/de/danoeh/antennapod/asynctask/ImageDiskCache.java
+++ b/src/de/danoeh/antennapod/asynctask/ImageDiskCache.java
@@ -5,6 +5,7 @@ import android.util.Pair;
 import android.widget.ImageView;
 import de.danoeh.antennapod.AppConfig;
 import de.danoeh.antennapod.PodcastApp;
+import de.danoeh.antennapod.R;
 import org.apache.commons.io.IOUtils;
 
 import java.io.*;
@@ -59,7 +60,6 @@ public class ImageDiskCache {
     /**
      * Filename - cache object mapping
      */
-    private static final int KEY_IMAGE_DISK_CACHE = 2;
     private static final String CACHE_FILE_NAME = "cachefile";
     private ExecutorService executor;
     private ConcurrentHashMap<String, DiskCacheObject> diskCache;
@@ -79,7 +79,8 @@ public class ImageDiskCache {
     }
 
     private synchronized void initCacheFolder() {
-        if (diskCache != null) {
+        if (diskCache == null) {
+            if (AppConfig.DEBUG) Log.d(TAG, "Initializing cache folder");
             File cacheFile = new File(cacheFolder, CACHE_FILE_NAME);
             if (cacheFile.exists()) {
                 try {
@@ -178,21 +179,21 @@ public class ImageDiskCache {
      * be loaded from the disk. Otherwise, the image will be downloaded first.
      * The image will be stored in the thumbnail cache.
      */
-    public synchronized void loadThumbnailBitmap(final String url, final ImageView target) {
+    public void loadThumbnailBitmap(final String url, final ImageView target, final int length) {
         final ImageLoader il = ImageLoader.getInstance();
         if (diskCache != null) {
             DiskCacheObject dco = getFromCacheIfAvailable(url);
             if (dco != null) {
-                il.loadThumbnailBitmap(dco.loadImage(), target);
+                il.loadThumbnailBitmap(dco.loadImage(), target, length);
                 return;
             }
         }
-        target.setTag(KEY_IMAGE_DISK_CACHE, url);
+        target.setTag(R.id.image_disk_cache_key, url);
         executor.submit(new ImageDownloader(url) {
             @Override
             protected void onImageLoaded(DiskCacheObject diskCacheObject) {
-                if (target.getTag(KEY_IMAGE_DISK_CACHE) == url) {
-                    il.loadThumbnailBitmap(diskCacheObject.loadImage(), target);
+                if (target.getTag(R.id.image_disk_cache_key) == url) {
+                    il.loadThumbnailBitmap(diskCacheObject.loadImage(), target, length);
                 }
             }
         });
@@ -204,21 +205,21 @@ public class ImageDiskCache {
      * be loaded from the disk. Otherwise, the image will be downloaded first.
      * The image will be stored in the cover cache.
      */
-    public synchronized void loadCoverBitmap(final String url, final ImageView target) {
+    public void loadCoverBitmap(final String url, final ImageView target, final int length) {
         final ImageLoader il = ImageLoader.getInstance();
         if (diskCache != null) {
             DiskCacheObject dco = getFromCacheIfAvailable(url);
             if (dco != null) {
-                il.loadThumbnailBitmap(dco.loadImage(), target);
+                il.loadThumbnailBitmap(dco.loadImage(), target, length);
                 return;
             }
         }
-        target.setTag(KEY_IMAGE_DISK_CACHE, url);
+        target.setTag(R.id.image_disk_cache_key, url);
         executor.submit(new ImageDownloader(url) {
             @Override
             protected void onImageLoaded(DiskCacheObject diskCacheObject) {
-                if (target.getTag(KEY_IMAGE_DISK_CACHE) == url) {
-                    il.loadCoverBitmap(diskCacheObject.loadImage(), target);
+                if (target.getTag(R.id.image_disk_cache_key) == url) {
+                    il.loadCoverBitmap(diskCacheObject.loadImage(), target, length);
                 }
             }
         });
@@ -234,6 +235,20 @@ public class ImageDiskCache {
         if (cacheSize > maxCacheSize) {
             cleanup();
         }
+        saveCacheInfoFile();
+    }
+
+    private synchronized void saveCacheInfoFile() {
+        OutputStream out = null;
+        try {
+            out = new BufferedOutputStream(new FileOutputStream(new File(cacheFolder, CACHE_FILE_NAME)));
+            ObjectOutputStream objOut = new ObjectOutputStream(out);
+            objOut.writeObject(diskCache);
+        } catch (IOException e) {
+            e.printStackTrace();
+        } finally {
+            IOUtils.closeQuietly(out);
+        }
     }
 
     private synchronized DiskCacheObject getFromCacheIfAvailable(String key) {
@@ -275,6 +290,7 @@ public class ImageDiskCache {
 
                 final DiskCacheObject dco = new DiskCacheObject(newFile.getAbsolutePath(), size);
                 addToDiskCache(downloadUrl, dco);
+                if (AppConfig.DEBUG) Log.d(TAG, "Image was downloaded");
                 onImageLoaded(dco);
             } catch (MalformedURLException e) {
                 e.printStackTrace();
@@ -287,7 +303,7 @@ public class ImageDiskCache {
         }
     }
 
-    private static class DiskCacheObject {
+    private static class DiskCacheObject implements Serializable{
         private final String fileUrl;
 
         /**
@@ -311,7 +327,6 @@ public class ImageDiskCache {
 
         public ImageLoader.ImageWorkerTaskResource loadImage() {
             return new ImageLoader.ImageWorkerTaskResource() {
-                FileInputStream in = null;
 
                 @Override
                 public InputStream openImageInputStream() {
@@ -325,15 +340,8 @@ public class ImageDiskCache {
 
                 @Override
                 public InputStream reopenImageInputStream(InputStream input) {
-                    if (in != null) {
-                        try {
-                            in.close();
-                            return openImageInputStream();
-                        } catch (IOException e) {
-                            e.printStackTrace();
-                        }
-                    }
-                    return null;
+                    IOUtils.closeQuietly(input);
+                    return openImageInputStream();
                 }
 
                 @Override
diff --git a/src/de/danoeh/antennapod/fragment/gpodnet/PodcastListFragment.java b/src/de/danoeh/antennapod/fragment/gpodnet/PodcastListFragment.java
new file mode 100644
index 000000000..ba74d9d03
--- /dev/null
+++ b/src/de/danoeh/antennapod/fragment/gpodnet/PodcastListFragment.java
@@ -0,0 +1,109 @@
+package de.danoeh.antennapod.fragment.gpodnet;
+
+import android.content.Context;
+import android.os.AsyncTask;
+import android.os.Bundle;
+import android.support.v4.app.Fragment;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.AdapterView;
+import android.widget.GridView;
+import android.widget.ProgressBar;
+import android.widget.TextView;
+import de.danoeh.antennapod.R;
+import de.danoeh.antennapod.adapter.gpodnet.PodcastListAdapter;
+import de.danoeh.antennapod.gpoddernet.GpodnetService;
+import de.danoeh.antennapod.gpoddernet.GpodnetServiceException;
+import de.danoeh.antennapod.gpoddernet.model.GpodnetPodcast;
+
+import java.util.List;
+
+/**
+ * Displays a list of GPodnetPodcast-Objects in a GridView
+ */
+public abstract class PodcastListFragment extends Fragment {
+    private static final String TAG = "PodcastListFragment";
+
+    private GridView gridView;
+    private ProgressBar progressBar;
+    private TextView txtvError;
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+        setRetainInstance(true);
+        View root = inflater.inflate(R.layout.gpodnet_podcast_list, container, false);
+
+        gridView = (GridView) root.findViewById(R.id.gridView);
+        progressBar = (ProgressBar) root.findViewById(R.id.progressBar);
+        txtvError = (TextView) root.findViewById(R.id.txtvError);
+
+        gridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
+            @Override
+            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
+                onPodcastSelected((GpodnetPodcast) gridView.getAdapter().getItem(position));
+            }
+        });
+
+        loadData();
+        return root;
+    }
+
+    protected abstract void onPodcastSelected(GpodnetPodcast selection);
+
+    protected abstract List<GpodnetPodcast> loadPodcastData(GpodnetService service) throws GpodnetServiceException;
+
+    private void loadData() {
+        AsyncTask<Void, Void, List<GpodnetPodcast>> loaderTask = new AsyncTask<Void, Void, List<GpodnetPodcast>>() {
+            volatile Exception exception = null;
+
+            @Override
+            protected List<GpodnetPodcast> doInBackground(Void... params) {
+                GpodnetService service = null;
+                try {
+                    service = new GpodnetService();
+                    return loadPodcastData(service);
+                } catch (GpodnetServiceException e) {
+                    exception = e;
+                    e.printStackTrace();
+                    return null;
+                } finally {
+                    if (service != null) {
+                        service.shutdown();
+                    }
+                }
+            }
+
+            @Override
+            protected void onPostExecute(List<GpodnetPodcast> gpodnetPodcasts) {
+                super.onPostExecute(gpodnetPodcasts);
+                final Context context = getActivity();
+                if (context != null && gpodnetPodcasts != null) {
+                    PodcastListAdapter listAdapter = new PodcastListAdapter(context, 0, gpodnetPodcasts);
+                    gridView.setAdapter(listAdapter);
+                    listAdapter.notifyDataSetChanged();
+
+                    progressBar.setVisibility(View.GONE);
+                    gridView.setVisibility(View.VISIBLE);
+                } else if (context != null) {
+                    gridView.setVisibility(View.GONE);
+                    progressBar.setVisibility(View.GONE);
+                    txtvError.setText(getString(R.string.error_msg_prefix) + exception.getMessage());
+                }
+            }
+
+            @Override
+            protected void onPreExecute() {
+                super.onPreExecute();
+               // gridView.setVisibility(View.GONE);
+                progressBar.setVisibility(View.VISIBLE);
+            }
+        };
+
+        if (android.os.Build.VERSION.SDK_INT > android.os.Build.VERSION_CODES.GINGERBREAD_MR1) {
+            loaderTask.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
+        } else {
+            loaderTask.execute();
+        }
+    }
+}
diff --git a/src/de/danoeh/antennapod/fragment/gpodnet/PodcastTopListFragment.java b/src/de/danoeh/antennapod/fragment/gpodnet/PodcastTopListFragment.java
new file mode 100644
index 000000000..4e7e42aa3
--- /dev/null
+++ b/src/de/danoeh/antennapod/fragment/gpodnet/PodcastTopListFragment.java
@@ -0,0 +1,27 @@
+package de.danoeh.antennapod.fragment.gpodnet;
+
+import android.util.Log;
+import de.danoeh.antennapod.AppConfig;
+import de.danoeh.antennapod.gpoddernet.GpodnetService;
+import de.danoeh.antennapod.gpoddernet.GpodnetServiceException;
+import de.danoeh.antennapod.gpoddernet.model.GpodnetPodcast;
+
+import java.util.List;
+
+/**
+ *
+ */
+public class PodcastTopListFragment extends PodcastListFragment {
+    private static final String TAG = "PodcastTopListFragment";
+    private static final int PODCAST_COUNT = 50;
+
+    @Override
+    protected void onPodcastSelected(GpodnetPodcast selection) {
+        if (AppConfig.DEBUG) Log.d(TAG, "Selected: " + selection.getTitle());
+    }
+
+    @Override
+    protected List<GpodnetPodcast> loadPodcastData(GpodnetService service) throws GpodnetServiceException {
+        return service.getPodcastToplist(PODCAST_COUNT);
+    }
+}