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package de.danoeh.antennapod.fragment.gpodnet;
import android.content.Context;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.*;
import de.danoeh.antennapod.BuildConfig;
import de.danoeh.antennapod.R;
import de.danoeh.antennapod.activity.DefaultOnlineFeedViewActivity;
import de.danoeh.antennapod.activity.OnlineFeedViewActivity;
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;
private Button butRetry;
@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);
butRetry = (Button) root.findViewById(R.id.butRetry);
gridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
onPodcastSelected((GpodnetPodcast) gridView.getAdapter().getItem(position));
}
});
butRetry.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
loadData();
}
});
loadData();
return root;
}
protected void onPodcastSelected(GpodnetPodcast selection) {
if (BuildConfig.DEBUG) Log.d(TAG, "Selected podcast: " + selection.toString());
Intent intent = new Intent(getActivity(), DefaultOnlineFeedViewActivity.class);
intent.putExtra(OnlineFeedViewActivity.ARG_FEEDURL, selection.getUrl());
intent.putExtra(DefaultOnlineFeedViewActivity.ARG_TITLE, getString(R.string.gpodnet_main_label));
startActivity(intent);
}
protected abstract List<GpodnetPodcast> loadPodcastData(GpodnetService service) throws GpodnetServiceException;
protected final 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);
txtvError.setVisibility(View.GONE);
butRetry.setVisibility(View.GONE);
} else if (context != null) {
gridView.setVisibility(View.GONE);
progressBar.setVisibility(View.GONE);
txtvError.setText(getString(R.string.error_msg_prefix) + exception.getMessage());
txtvError.setVisibility(View.VISIBLE);
butRetry.setVisibility(View.VISIBLE);
}
}
@Override
protected void onPreExecute() {
super.onPreExecute();
gridView.setVisibility(View.GONE);
progressBar.setVisibility(View.VISIBLE);
txtvError.setVisibility(View.GONE);
butRetry.setVisibility(View.GONE);
}
};
if (android.os.Build.VERSION.SDK_INT > android.os.Build.VERSION_CODES.GINGERBREAD_MR1) {
loaderTask.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
} else {
loaderTask.execute();
}
}
}
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