Android Open Source - lastfm-android-music-discovery Search Results Activity

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Back to project page lastfm-android-music-discovery.

License

The source code is released under:

Apache License

Java Source Code

package com.mikeladze.musicdiscovery.search.activity;
/*from   w w w.j a va 2  s . c  o  m*/
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import android.app.SearchManager;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.ExpandableListView;
import android.widget.ExpandableListView.OnChildClickListener;

import com.loopj.android.http.JsonHttpResponseHandler;
import com.mikeladze.musicdiscovery.R;
import com.mikeladze.musicdiscovery.album.activity.AlbumActivity;
import com.mikeladze.musicdiscovery.artist.activity.ArtistActivity;
import com.mikeladze.musicdiscovery.base.activity.BaseFragmentActivity;
import com.mikeladze.musicdiscovery.http.LastFMResult;
import com.mikeladze.musicdiscovery.http.RestClient;
import com.mikeladze.musicdiscovery.search.adapter.SearchResultsAdapter;

import fm.last.album.Album;
import fm.last.artist.Artist;

/**
 * This activity displays search results
 * 
 * @author Tim Mikeladze
 */
public class SearchResultsActivity extends BaseFragmentActivity implements OnChildClickListener {
  
  private static final String ACTION_BAR_TITLE = "Search Results";
  private static final int NUMBER_OF_SEARCH_RESULTS = 10;
  private SearchResultsAdapter listAdapter;
  private ExpandableListView listView;
  
  private ArrayList<String> headers;
  private HashMap<String, List<LastFMResult>> items;
  private String query;
  
  @Override
  /**
   * Creates the activity
   */
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_search);
    
    actionBar.setTitle(ACTION_BAR_TITLE);
    
    if (savedInstanceState != null) {
      query = savedInstanceState.getString("query");
    }
    
    handleIntent(getIntent());
    
    listView = (ExpandableListView) findViewById(R.id.view_search_results);
    listView.setOnChildClickListener(this);
  }
  
  @Override
  /**
   * Stores the received search query for device orientation changed purposes
   */
  protected void onSaveInstanceState(Bundle savedInstanceState) {
    super.onSaveInstanceState(savedInstanceState);
    savedInstanceState.putString("query", query);
  }
  
  /**
   * Loads and displays the search results for artists and albums.
   */
  private void loadSearchResults() {
    headers = new ArrayList<String>();
    items = new HashMap<String, List<LastFMResult>>();
    
    RestClient.get(Artist.<String> search(query, 0, NUMBER_OF_SEARCH_RESULTS), new JsonHttpResponseHandler() {
      
      @Override
      public void onStart() {
        super.onStart();
        setProgressBarIndeterminateVisibility(true);
      }
      
      @Override
      public void onSuccess(JSONObject response) {
        
        setProgressBarIndeterminateVisibility(false);
        try {
          JSONArray artists = response.getJSONObject("results")
                        .getJSONObject("artistmatches")
                        .getJSONArray("artist");
          ArrayList<LastFMResult> artistResults = new ArrayList<LastFMResult>();
          for (int i = 0; i < artists.length(); i++) {
            String image = artists.getJSONObject(i)
                        .getJSONArray("image")
                        .getJSONObject(3)
                        .getString("#text");
            String title = artists.getJSONObject(i)
                        .getString("name");
            String mbid = artists.getJSONObject(i)
                        .getString("mbid");
            artistResults.add(new LastFMResult(image, title, mbid));
          }
          
          headers.add("Artists");
          items.put(headers.get(0), artistResults);
          
          RestClient.get(Album.<String> search(query, 0, 10), new JsonHttpResponseHandler() {
            
            @Override
            public void onSuccess(JSONObject response) {
              try {
                JSONArray albums = response.getJSONObject("results")
                              .getJSONObject("albummatches")
                              .getJSONArray("album");
                ArrayList<LastFMResult> albumResults = new ArrayList<LastFMResult>();
                for (int i = 0; i < albums.length(); i++) {
                  String image = albums.getJSONObject(i)
                              .getJSONArray("image")
                              .getJSONObject(3)
                              .getString("#text");
                  String title = albums.getJSONObject(i)
                              .getString("name") + " - " + albums.getJSONObject(i)
                                                .getString("artist");
                  String mbid = albums.getJSONObject(i)
                            .getString("mbid");
                  
                  String artist = albums.getJSONObject(i)
                              .getString("artist");
                  
                  albumResults.add(new LastFMResult(image, title, artist, mbid));
                }
                
                headers.add("Albums");
                items.put(headers.get(1), albumResults);
                
                listAdapter = new SearchResultsAdapter(SearchResultsActivity.this, headers, items);
                listView.setAdapter(listAdapter);
                
                listView.expandGroup(0);
                
              } catch (JSONException e) {
                e.printStackTrace();
              }
            }
          });
          
        } catch (JSONException e) {
          e.printStackTrace();
        }
      }
    });
    
  }
  
  @Override
  /**
   * Receives an intent 
   */
  protected void onNewIntent(Intent intent) {
    setIntent(intent);
    handleIntent(intent);
  }
  
  /**
   * Handles receiving the search intent and intiaites a search
   * 
   * @param intent the intent
   */
  private void handleIntent(Intent intent) {
    if (Intent.ACTION_SEARCH.equals(intent.getAction())) {
      query = intent.getStringExtra(SearchManager.QUERY);
      loadSearchResults();
    }
    
  }
  
  @Override
  /**
   * Handles click events to children in the search results list, starting appropriate activity based on item.
   */
  public boolean onChildClick(ExpandableListView parent, View v, int groupPosition, int childPosition, long id) {
    Bundle b = new Bundle();
    Class<?> c = null;
    switch (groupPosition) {
      case 0:
        c = ArtistActivity.class;
        break;
      case 1:
        c = AlbumActivity.class;
        b.putString("artist", items.get(headers.get(groupPosition))
                      .get(childPosition)
                      .getArtist());
        break;
      default:
        break;
    }
    
    Intent intent = new Intent(this, c);
    b.putString("name", items.get(headers.get(groupPosition))
                  .get(childPosition)
                  .getTitle()
                  .split("-")[0].trim());
    b.putString("mbid", items.get(headers.get(groupPosition))
                  .get(childPosition)
                  .getMBID());
    intent.putExtras(b);
    startActivity(intent);
    return false;
  }
}

Java Source Code List

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