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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 androidx.fragment.app.Fragment;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.GridView;
import android.widget.ProgressBar;
import android.widget.TextView;
import java.util.List;
import de.danoeh.antennapod.R;
import de.danoeh.antennapod.activity.MainActivity;
import de.danoeh.antennapod.activity.OnlineFeedViewActivity;
import de.danoeh.antennapod.adapter.gpodnet.PodcastListAdapter;
import de.danoeh.antennapod.core.preferences.GpodnetPreferences;
import de.danoeh.antennapod.core.service.download.AntennapodHttpClient;
import de.danoeh.antennapod.core.sync.gpoddernet.GpodnetService;
import de.danoeh.antennapod.core.sync.gpoddernet.GpodnetServiceException;
import de.danoeh.antennapod.core.sync.gpoddernet.model.GpodnetPodcast;
/**
* 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) {
View root = inflater.inflate(R.layout.gpodnet_podcast_list, container, false);
gridView = root.findViewById(R.id.gridView);
progressBar = root.findViewById(R.id.progressBar);
txtvError = root.findViewById(R.id.txtvError);
butRetry = root.findViewById(R.id.butRetry);
gridView.setOnItemClickListener((parent, view, position, id) ->
onPodcastSelected((GpodnetPodcast) gridView.getAdapter().getItem(position)));
butRetry.setOnClickListener(v -> loadData());
loadData();
return root;
}
private void onPodcastSelected(GpodnetPodcast selection) {
Log.d(TAG, "Selected podcast: " + selection.toString());
Intent intent = new Intent(getActivity(), OnlineFeedViewActivity.class);
intent.putExtra(OnlineFeedViewActivity.ARG_FEEDURL, selection.getUrl());
intent.putExtra(MainActivity.EXTRA_STARTED_FROM_SEARCH, true);
startActivity(intent);
}
protected abstract List<GpodnetPodcast> loadPodcastData(GpodnetService service) throws GpodnetServiceException;
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) {
try {
GpodnetService service = new GpodnetService(AntennapodHttpClient.getHttpClient(),
GpodnetPreferences.getHostname());
return loadPodcastData(service);
} catch (GpodnetServiceException e) {
exception = e;
e.printStackTrace();
return null;
}
}
@Override
protected void onPostExecute(List<GpodnetPodcast> gpodnetPodcasts) {
super.onPostExecute(gpodnetPodcasts);
final Context context = getActivity();
if (context != null && gpodnetPodcasts != null && gpodnetPodcasts.size() > 0) {
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 && gpodnetPodcasts != null) {
gridView.setVisibility(View.GONE);
progressBar.setVisibility(View.GONE);
txtvError.setText(getString(R.string.search_status_no_results));
txtvError.setVisibility(View.VISIBLE);
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);
}
};
loaderTask.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
}
}
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