Android Open Source - kure-music-player Activity Menu Music

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Back to project page kure-music-player.

License

The source code is released under:

GNU General Public License

Java Source Code

package com.kure.musicplayer.activities;
//  ww  w.  j a  v  a 2  s  . com
import java.util.ArrayList;

import android.app.ActionBar;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;

import com.kure.musicplayer.R;
import com.kure.musicplayer.kMP;

/**
 * Direct sub menu for the Main Menu, showing other
 * sub menus related to Music, such as "Artists", "Albums"
 * and "All Songs".
 *
 */
public class ActivityMenuMusic extends ActivityMaster
  implements OnItemClickListener {

  /**
   * All the possible items the user can select on this menu.
   *
   * Will be initialized with default values on `onCreate`.
   */
  public static ArrayList<String> items = new ArrayList<String>();

  /**
   * List that will be populated with all the items.
   *
   * Look for it inside the res/layout xml files.
   */
  ListView listView;

  /**
   * Called when the activity is created for the first time.
   */
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main_menu);

    // This enables the "Up" button on the top Action Bar
    // Note that it returns to the parent Activity, specified
    // on `AndroidManifest`
    ActionBar actionBar = getActionBar();
    if (actionBar != null)
      actionBar.setDisplayHomeAsUpEnabled(true);

    // Adding all possible items on the menu.
    items.add(getString(R.string.menu_music_playlists));
    items.add(getString(R.string.menu_music_artists));
    items.add(getString(R.string.menu_music_albums));
    items.add(getString(R.string.menu_music_genres));
    items.add(getString(R.string.menu_music_years));
    items.add(getString(R.string.menu_music_songs));

    // List to be populated with items
    listView = (ListView)findViewById(R.id.activity_main_menu_list);

    // Adapter that will convert from Strings to List Items
    final ArrayAdapter<String> adapter = new ArrayAdapter<String>
        (this, android.R.layout.simple_list_item_1, items);

    // Filling teh list with all the items
    listView.setAdapter(adapter);

    listView.setOnItemClickListener(this);
  }

  /**
   * Will react to the user selecting an item.
   */
  @Override
  public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

    // We can only handle the user choice from now on
    // if we've successfuly scanned the songs from the
    // device.
    if (! kMP.songs.isInitialized()) {
      Toast.makeText(this,
          getString(R.string.menu_music_proceed_error),
          Toast.LENGTH_LONG).show();
      return;
    }

    // Gets the string value of the current item and
    // compares to all possible items.
    String currentItem = listView.getItemAtPosition(position).toString();

    if (currentItem == getString(R.string.menu_music_playlists)) {
      startActivity(new Intent(this, ActivityMenuPlaylist.class));
    }
    else if (currentItem == getString(R.string.menu_music_artists)) {
      startActivity(new Intent(this, ActivityMenuArtist.class));
    }
    else if (currentItem == getString(R.string.menu_music_albums)) {
      startActivity(new Intent(this, ActivityMenuAlbum.class));
    }
    else if (currentItem == getString(R.string.menu_music_songs)) {
      kMP.musicList = kMP.songs.songs;
      startActivity(new Intent(this, ActivityListSongs.class));
    }
    else if (currentItem == getString(R.string.menu_music_genres)) {
      startActivity(new Intent(this, ActivityMenuGenre.class));
    }
    else if (currentItem == getString(R.string.menu_music_years)) {
      startActivity(new Intent(this, ActivityMenuYear.class));
    }
    else {

    }
  }

  /**
   * When destroying the Activity.
   */
  @Override
  protected void onDestroy() {
    super.onDestroy();

    // Need to clear all the items otherwise
    // they'll keep adding up.
    items.clear();
  }
}

Java Source Code List

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