Android Open Source - AndroidPlayer Main Activity

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License

The source code is released under:

Copyright 2012 Michael Marner (michael@20papercups.net) all rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following...

Java Source Code

// Copyright 2012 Michael Marner (michael@20papercups.net) all rights reserved.
////from w w w.  ja  v  a2  s  . c  om
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
//
//    1. Redistributions of source code must retain the above copyright notice, this list of
//       conditions and the following disclaimer.
//
//    2. Redistributions in binary form must reproduce the above copyright notice, this list
//       of conditions and the following disclaimer in the documentation and/or other materials
//       provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY <COPYRIGHT HOLDER> ''AS IS'' AND ANY EXPRESS OR IMPLIED
// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
// FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> OR
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// The views and conclusions contained in the software and documentation are those of the
// authors and should not be interpreted as representing official policies, either expressed
// or implied, of the authors.


package com.threedradio.player;

import android.media.AudioManager;
import android.os.Bundle;
import android.os.IBinder;
import android.app.Activity;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.ServiceConnection;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.widget.ImageButton;

/**
 * The main activity for the Three D application, shows the user interface, etc.
 * 
 * @author Michael Marner (michael@20papercups.net)
 *
 */
public class MainActivity extends Activity {

  /**
   * Our service that is responsible for actually playing the music.
   */
  ThreeDService service;
  
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        

    }
    
    @Override
    public void onStart() {
        /*
         * Because this activity could have been stopped and recreated, while
         * the service playing the music continues to do it's thing, we will
         * attempt to reconnect to the service when this activity is created,
         * creating the service if it does not exist.
         */
    Intent i = new Intent(this, ThreeDService.class);
    i.setAction(ThreeDService.ACTION_PLAY);
    bindService(i, mConnection, Context.BIND_AUTO_CREATE);
    setVolumeControlStream(AudioManager.STREAM_MUSIC);
    }

    
    /**
     * Eventually, we'll have an options menu. For now, this doesn't do anything!
     */
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.activity_main, menu);
        return true;
    }
    
    
    /**
     * The service connection handles reconnecting and disconnecting 
     * from the playback service.
     */
    private ServiceConnection mConnection = new ServiceConnection() {
    
      /**
       * If we disconnect from the service, we simply invalidate our
       * service handle.
       */
    public void onServiceDisconnected(ComponentName name) {
      service = null;
    }
    
    /**
     * On connecting to the service, we check the playback state, and set
     * the icon on the play/pause button accordingly.
     */
    public void onServiceConnected(ComponentName name, IBinder s) {
      service = ((ThreeDService.LocalBinder)s).getService();
      if (service.isPlaying()) {
        ((ImageButton) findViewById(R.id.playpause)).setImageResource(android.R.drawable.ic_media_pause);
      }
      Log.d("ThreeD", "Connected!");
    }
  };
    
  
  /**
   * Handler for the Play/pause button.
   * Toggles the music stream and sets the icon on the button accordingly.
   * 
   * @param v The button that triggered this event. Should certainly by the play/pause button!
   */
  public void playButtonClick(View v) {
    Log.v("ThreeD", "PlayButtonClicked");
    
    if (service.isPlaying()) {
      service.stop();
      ((ImageButton) v).setImageResource(android.R.drawable.ic_media_play);
    }
    else {
      Intent i = new Intent(MainActivity.this, ThreeDService.class);
      i.setAction(ThreeDService.ACTION_PLAY);
      startService(i);
      ((ImageButton) v).setImageResource(android.R.drawable.ic_media_pause);
    }
  }
}

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