From 24e0db1cdef2d6bb84f489bc26be66d83449aadd Mon Sep 17 00:00:00 2001 From: Ercan Erden Date: Tue, 24 Feb 2015 04:21:11 -0500 Subject: Add ability to search iTunes for podcasts --- .../antennapod/adapter/itunes/ItunesAdapter.java | 187 ++++++++++++++++++++ .../antennapod/fragment/AddFeedFragment.java | 10 +- .../antennapod/fragment/ItunesSearchFragment.java | 193 +++++++++++++++++++++ 3 files changed, 389 insertions(+), 1 deletion(-) create mode 100644 app/src/main/java/de/danoeh/antennapod/adapter/itunes/ItunesAdapter.java create mode 100644 app/src/main/java/de/danoeh/antennapod/fragment/ItunesSearchFragment.java (limited to 'app/src/main/java/de/danoeh/antennapod') diff --git a/app/src/main/java/de/danoeh/antennapod/adapter/itunes/ItunesAdapter.java b/app/src/main/java/de/danoeh/antennapod/adapter/itunes/ItunesAdapter.java new file mode 100644 index 000000000..4fc2838b7 --- /dev/null +++ b/app/src/main/java/de/danoeh/antennapod/adapter/itunes/ItunesAdapter.java @@ -0,0 +1,187 @@ +package de.danoeh.antennapod.adapter.itunes; + +import android.content.Context; +import android.graphics.Bitmap; +import android.graphics.BitmapFactory; +import android.os.AsyncTask; +import android.view.View; +import android.view.ViewGroup; +import android.widget.ArrayAdapter; +import android.widget.ImageView; +import android.widget.TextView; + +import org.apache.http.HttpResponse; +import org.apache.http.client.HttpClient; +import org.apache.http.client.methods.HttpGet; +import org.apache.http.impl.client.DefaultHttpClient; +import org.json.JSONException; +import org.json.JSONObject; + +import java.io.IOException; +import java.util.List; + +import de.danoeh.antennapod.R; +import de.danoeh.antennapod.activity.MainActivity; + +public class ItunesAdapter extends ArrayAdapter { + /** + * Related Context + */ + private final Context context; + + /** + * List holding the podcasts found in the search + */ + private final List data; + + /** + * Constructor. + * + * @param context Related context + * @param objects Search result + */ + public ItunesAdapter(Context context, List objects) { + super(context, 0, objects); + this.data = objects; + this.context = context; + } + + /** + * Updates the given ImageView with the image in the given Podcast's imageUrl + */ + class FetchImageTask extends AsyncTask{ + /** + * Current podcast + */ + private final Podcast podcast; + + /** + * ImageView to be updated + */ + private final ImageView imageView; + + /** + * Constructor + * + * @param podcast Podcast that has the image + * @param imageView UI image to be updated + */ + FetchImageTask(Podcast podcast, ImageView imageView){ + this.podcast = podcast; + this.imageView = imageView; + } + + //Get the image from the url + @Override + protected Bitmap doInBackground(Void... params) { + HttpClient client = new DefaultHttpClient(); + HttpGet get = new HttpGet(podcast.imageUrl); + try { + HttpResponse response = client.execute(get); + return BitmapFactory.decodeStream(response.getEntity().getContent()); + } catch (IOException e) { + e.printStackTrace(); + } + return null; + } + + //Set the background image for the podcast + @Override + protected void onPostExecute(Bitmap img) { + super.onPostExecute(img); + if(img!=null) { + imageView.setImageBitmap(img); + } + } + } + + @Override + public View getView(int position, View convertView, ViewGroup parent) { + //Current podcast + Podcast podcast = data.get(position); + + //ViewHolder + PodcastViewHolder viewHolder; + + //Resulting view + View view; + + //Handle view holder stuff + if(convertView == null) { + view = ((MainActivity) context).getLayoutInflater() + .inflate(R.layout.itunes_podcast_listitem, parent, false); + viewHolder = new PodcastViewHolder(view); + view.setTag(viewHolder); + } else { + view = convertView; + viewHolder = (PodcastViewHolder) view.getTag(); + } + + //Set the title + viewHolder.titleView.setText(podcast.title); + + //Update the empty imageView with the image from the feed + new FetchImageTask(podcast,viewHolder.coverView).execute(); + + //Feed the grid view + return view; + } + + /** + * View holder object for the GridView + */ + class PodcastViewHolder { + + /** + * ImageView holding the Podcast image + */ + public final ImageView coverView; + + /** + * TextView holding the Podcast title + */ + public final TextView titleView; + + + /** + * Constructor + * @param view GridView cell + */ + PodcastViewHolder(View view){ + coverView = (ImageView) view.findViewById(R.id.imgvCover); + titleView = (TextView) view.findViewById(R.id.txtvTitle); + } + } + + /** + * Represents an individual podcast on the iTunes Store. + */ + public static class Podcast { //TODO: Move this out eventually. Possibly to core.itunes.model + + /** + * The name of the podcast + */ + public final String title; + + /** + * URL of the podcast image + */ + public final String imageUrl; + /** + * URL of the podcast feed + */ + public final String feedUrl; + + /** + * Constructor. + * + * @param json object holding the podcast information + * @throws JSONException + */ + public Podcast(JSONObject json) throws JSONException { + title = json.getString("collectionName"); + imageUrl = json.getString("artworkUrl100"); + feedUrl = json.getString("feedUrl"); + } + } +} diff --git a/app/src/main/java/de/danoeh/antennapod/fragment/AddFeedFragment.java b/app/src/main/java/de/danoeh/antennapod/fragment/AddFeedFragment.java index f5ae5a777..e4ae1683b 100644 --- a/app/src/main/java/de/danoeh/antennapod/fragment/AddFeedFragment.java +++ b/app/src/main/java/de/danoeh/antennapod/fragment/AddFeedFragment.java @@ -8,6 +8,7 @@ import android.view.View; import android.view.ViewGroup; import android.widget.Button; import android.widget.EditText; + import de.danoeh.antennapod.R; import de.danoeh.antennapod.activity.DefaultOnlineFeedViewActivity; import de.danoeh.antennapod.activity.MainActivity; @@ -41,10 +42,18 @@ public class AddFeedFragment extends Fragment { Button butBrowserGpoddernet = (Button) root.findViewById(R.id.butBrowseGpoddernet); Button butOpmlImport = (Button) root.findViewById(R.id.butOpmlImport); Button butConfirm = (Button) root.findViewById(R.id.butConfirm); + Button butSearchITunes = (Button) root.findViewById(R.id.butSearchItunes); final MainActivity activity = (MainActivity) getActivity(); activity.getMainActivtyActionBar().setTitle(R.string.add_feed_label); + butSearchITunes.setOnClickListener(new View.OnClickListener() { + @Override + public void onClick(View v) { + activity.loadChildFragment(new ItunesSearchFragment()); + } + }); + butBrowserGpoddernet.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { @@ -53,7 +62,6 @@ public class AddFeedFragment extends Fragment { }); butOpmlImport.setOnClickListener(new View.OnClickListener() { - @Override public void onClick(View v) { startActivity(new Intent(getActivity(), diff --git a/app/src/main/java/de/danoeh/antennapod/fragment/ItunesSearchFragment.java b/app/src/main/java/de/danoeh/antennapod/fragment/ItunesSearchFragment.java new file mode 100644 index 000000000..c14b0cc6e --- /dev/null +++ b/app/src/main/java/de/danoeh/antennapod/fragment/ItunesSearchFragment.java @@ -0,0 +1,193 @@ +package de.danoeh.antennapod.fragment; + +import android.content.Intent; +import android.os.AsyncTask; +import android.os.Bundle; +import android.support.v4.app.Fragment; +import android.support.v7.widget.SearchView; +import android.view.LayoutInflater; +import android.view.View; +import android.view.ViewGroup; +import android.widget.AdapterView; +import android.widget.GridView; + +import org.apache.http.HttpResponse; +import org.apache.http.client.HttpClient; +import org.apache.http.client.methods.HttpGet; +import org.apache.http.impl.client.DefaultHttpClient; +import org.apache.http.util.EntityUtils; +import org.json.JSONArray; +import org.json.JSONException; +import org.json.JSONObject; + +import java.io.IOException; +import java.util.ArrayList; +import java.util.List; + +import de.danoeh.antennapod.R; +import de.danoeh.antennapod.activity.DefaultOnlineFeedViewActivity; +import de.danoeh.antennapod.activity.OnlineFeedViewActivity; +import de.danoeh.antennapod.adapter.itunes.ItunesAdapter; + +import static de.danoeh.antennapod.adapter.itunes.ItunesAdapter.*; + +//Searches iTunes store for given string and displays results in a list +public class ItunesSearchFragment extends Fragment { + final String TAG = "ItunesSearchFragment"; + /** + * Search input field + */ + private SearchView searchView; + + /** + * Adapter responsible with the search results + */ + private ItunesAdapter adapter; + + /** + * List of podcasts retreived from the search + */ + private List searchResults; + + /** + * Replace adapter data with provided search results from SearchTask. + * @param result List of Podcast objects containing search results + */ + void updateData(List result) { + this.searchResults = result; + adapter.clear(); + + //ArrayAdapter.addAll() requires minsdk > 10 + for(Podcast p: result) { + adapter.add(p); + } + + adapter.notifyDataSetInvalidated(); + } + + /** + * Constructor + */ + public ItunesSearchFragment() { + // Required empty public constructor + } + + @Override + public void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + adapter = new ItunesAdapter(getActivity(), new ArrayList()); + + } + + @Override + public View onCreateView(LayoutInflater inflater, ViewGroup container, + Bundle savedInstanceState) { + // Inflate the layout for this fragment + View view = inflater.inflate(R.layout.fragment_itunes_search, container, false); + GridView gridView = (GridView) view.findViewById(R.id.gridView); + gridView.setAdapter(adapter); + + //Show information about the podcast when the list item is clicked + gridView.setOnItemClickListener(new AdapterView.OnItemClickListener() { + @Override + public void onItemClick(AdapterView parent, View view, int position, long id) { + Intent intent = new Intent(getActivity(), + DefaultOnlineFeedViewActivity.class); + + //Tell the OnlineFeedViewActivity where to go + String url = searchResults.get(position).feedUrl; + intent.putExtra(OnlineFeedViewActivity.ARG_FEEDURL, url); + + intent.putExtra(DefaultOnlineFeedViewActivity.ARG_TITLE, "iTunes"); + startActivity(intent); + } + }); + + //Configure search input view to be expanded by default with a visible submit button + searchView = (SearchView) view.findViewById(R.id.itunes_search_view); + searchView.setIconifiedByDefault(false); + searchView.setIconified(false); + searchView.setSubmitButtonEnabled(true); + searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() { + @Override + public boolean onQueryTextSubmit(String s) { + //This prevents onQueryTextSubmit() from being called twice when keyboard is used + //to submit the query. + searchView.clearFocus(); + new SearchTask(s).execute(); + return false; + } + + @Override + public boolean onQueryTextChange(String s) { + return false; + } + }); + + return view; + } + + /** + * Search the iTunes store for podcasts using the given query + */ + class SearchTask extends AsyncTask { + /** + * Incomplete iTunes API search URL + */ + final String apiUrl = "https://itunes.apple.com/search?media=podcast&term=%s"; + + /** + * Search terms + */ + final String query; + + /** + * Search result + */ + final List taskData = new ArrayList<>(); + + /** + * Constructor + * + * @param query Search string + */ + public SearchTask(String query){ + this.query = query; + } + + //Get the podcast data + @Override + protected Void doInBackground(Void... params) { + + //Spaces in the query need to be replaced with '+' character. + String formattedUrl = String.format(apiUrl, query).replace(' ', '+'); + + HttpClient client = new DefaultHttpClient(); + HttpGet get = new HttpGet(formattedUrl); + + try { + HttpResponse response = client.execute(get); + String resultString = EntityUtils.toString(response.getEntity()); + JSONObject result = new JSONObject(resultString); + JSONArray j = result.getJSONArray("results"); + + for (int i = 0; i < j.length(); i++){ + JSONObject podcastJson = j.getJSONObject(i); + Podcast podcast = new Podcast(podcastJson); + taskData.add(podcast); + } + + } catch (IOException | JSONException e) { + e.printStackTrace(); + } + return null; + } + + //Save the data and update the list + @Override + protected void onPostExecute(Void aVoid) { + super.onPostExecute(aVoid); + updateData(taskData); + } + } +} -- cgit v1.2.3