Clase de actividad de Android en servicio

Tengo mi actividad abajo que juega el ShoutCastURL que fluye usando un cierto Classess del ayudante

Código:

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import java.net.MalformedURLException; import com.androidworkz.androidshoutcastlib.AndroidShoutcastLib; import com.androidworkz.androidshoutcastlib.InvalidStreamURLException; import com.androidworkz.androidshoutcastlib.Metadata; import com.androidworkz.androidshoutcastlib.MetadataListener; import android.media.AudioManager; import android.media.MediaPlayer; import android.media.MediaPlayer.OnBufferingUpdateListener; import android.media.MediaPlayer.OnCompletionListener; import android.media.MediaPlayer.OnErrorListener; import android.media.MediaPlayer.OnPreparedListener; import android.os.Bundle; import android.os.Handler; import android.os.PowerManager; import android.app.Activity; import android.util.Log; import android.view.Menu; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.TextView; public class Player extends Activity implements OnCompletionListener, OnPreparedListener, OnErrorListener, OnBufferingUpdateListener, MusicFocusable { private Boolean playState = false; private String station = "http://38.101.195.5:9156"; public static final float DUCK_VOLUME = 0.1f; private String artistName = null; private String trackName = null; private TextView artist; private TextView track; private TextView status; private Button play; enum AudioFocus { NoFocusNoDuck, // we don't have audio focus, and can't duck NoFocusCanDuck, // we don't have focus, but can play at a low volume // ("ducking") Focused // we have full audio focus } private AudioFocus mAudioFocus = AudioFocus.NoFocusNoDuck; private MediaPlayer mPlayer = null; private AndroidShoutcastLib shoutcast; private AudioManager mAudioManager; AudioFocusHelper mAudioFocusHelper = null; Handler handler = new Handler(); @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_player); mAudioManager = (AudioManager) getSystemService(AUDIO_SERVICE); // create the Audio Focus Helper, if the Audio Focus feature is // available (SDK 8 or above) if (android.os.Build.VERSION.SDK_INT >= 8) { mAudioFocusHelper = new AudioFocusHelper(getApplicationContext(), this); } else { mAudioFocus = AudioFocus.Focused; // no focus feature, so we always "have" audio focus } status = (TextView) findViewById(R.id.status); artist = (TextView) findViewById(R.id.artist); artist.setSelected(true); track = (TextView) findViewById(R.id.track); track.setSelected(true); play = (Button) findViewById(R.id.play); play.setOnClickListener(new OnClickListener() { @Override public void onClick(View btn) { if (!playState) { play.setText("Pause"); handler.postDelayed(handlePlayRequest, 300); } else { play.setText("Play"); status.setText("Press Play"); handler.postDelayed(handlePlayRequest, 300); } } }); shoutcast = new AndroidShoutcastLib(); try { shoutcast.setShoutcastUrl(station); } catch (InvalidStreamURLException e) { // TODO Auto-generated catch block e.printStackTrace(); } shoutcast.setOnMetadataChangedListener(new MetadataListener(){ @Override public void OnMetadataChanged(Metadata item) { artistName = item.artist; trackName = item.track; updateMeta(); } }); setVolumeControlStream(AudioManager.STREAM_MUSIC); } public void onDestroy() { super.onDestroy(); shoutcast = null; handler.removeCallbacks(handlePlayRequest); } public void updateMeta() { handler.post(new Runnable() { @Override public void run() { // This gets executed on the UI thread so it can safely modify Views artist.setText(artistName); track.setText(trackName); } }); } private final Runnable handlePlayRequest = new Runnable() { public void run() { if (playState) { Log.d("Player", "Stop Called"); giveUpAudioFocus(); mPlayer.stop(); mPlayer.reset(); mPlayer.release(); shoutcast.stopStream(); mPlayer = null; playState = false; } else { Log.d("Player", "Play Called"); createMediaPlayer(); getAudioFocus(); try { mPlayer.setDataSource(shoutcast.startStream()); } catch (IllegalArgumentException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (SecurityException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IllegalStateException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (MalformedURLException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (InvalidStreamURLException e) { // TODO Auto-generated catch block e.printStackTrace(); } mPlayer.prepareAsync(); } } }; private void createMediaPlayer() { mPlayer = new MediaPlayer(); // Make sure the media player will acquire a wake-lock while // playing. If we don't do // that, the CPU might go to sleep while the song is playing, // causing playback to stop. // // Remember that to use this, we have to declare the // android.permission.WAKE_LOCK // permission in AndroidManifest.xml. mPlayer.setWakeMode(getApplicationContext(), PowerManager.PARTIAL_WAKE_LOCK); // we want the media player to notify us when it's ready preparing, // and when it's done // playing: mPlayer.setOnPreparedListener(this); mPlayer.setOnCompletionListener(this); mPlayer.setOnErrorListener(this); } private void startPlayer() { mPlayer.setVolume(1.0f, 1.0f); if (!mPlayer.isPlaying()) { Log.d("Player", "Starting Playback"); mPlayer.start(); playState = true; status.setText("Streaming"); } } private void getAudioFocus() { if (mAudioFocus != AudioFocus.Focused && mAudioFocusHelper != null && mAudioFocusHelper.requestFocus()) mAudioFocus = AudioFocus.Focused; } private void giveUpAudioFocus() { if (mAudioFocus == AudioFocus.Focused && mAudioFocusHelper != null && mAudioFocusHelper.abandonFocus()) mAudioFocus = AudioFocus.NoFocusNoDuck; } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.activity_player, menu); return true; } @Override public void onBufferingUpdate(MediaPlayer arg0, int arg1) { // TODO Auto-generated method stub } @Override public boolean onError(MediaPlayer mp, int what, int extra) { playState = false; handler.post(handlePlayRequest); return false; } @Override public void onPrepared(MediaPlayer arg0) { startPlayer(); } @Override public void onCompletion(MediaPlayer arg0) { // TODO Auto-generated method stub } @Override public void onGainedAudioFocus() { // TODO Auto-generated method stub } @Override public void onLostAudioFocus(boolean canDuck) { // TODO Auto-generated method stub } } 

El código de arriba está funcionando perfecto cuando jugué el Stream en ForeGround,

Pero mi requisito es reproducir la secuencia en el fondo también (mi código debe reproducir la secuencia, si el usuario está interactuando con las otras aplicaciones también)

Para eso, he creado una clase de servicio para la actividad anterior

Aquí está el código:

Actividad:

 import android.os.Bundle; import android.app.Activity; import android.content.Intent; import android.util.Log; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.TextView; public class Player extends Activity implements OnClickListener { private Boolean playState = false; public static final float DUCK_VOLUME = 0.1f; private String artistName = null; private String trackName = null; private TextView artist; private TextView track; private TextView status; private Button play; Intent playbackServiceIntent; protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_player); // create the Audio Focus Helper, if the Audio Focus feature is // available (SDK 8 or above) status = (TextView) findViewById(R.id.status); artist = (TextView) findViewById(R.id.artist); artist.setSelected(true); track = (TextView) findViewById(R.id.track); track.setSelected(true); play = (Button) findViewById(R.id.play); play.setOnClickListener(this); playbackServiceIntent = new Intent(this, BackGroundService.class); } @Override public void onClick(View v) { if (v == play) { startService(playbackServiceIntent); Log.d("hi>>>>>", "gjgj"); finish(); } } } 

Clase de servicio:

 import com.androidworkz.androidshoutcastlib.AndroidShoutcastLib; import com.androidworkz.androidshoutcastlib.InvalidStreamURLException; import android.app.Service; import android.content.Intent; import android.media.AudioManager; import android.media.MediaPlayer; import android.media.MediaPlayer.OnBufferingUpdateListener; import android.media.MediaPlayer.OnCompletionListener; import android.media.MediaPlayer.OnErrorListener; import android.media.MediaPlayer.OnPreparedListener; import android.os.AsyncTask; import android.os.Handler; import android.os.IBinder; import android.os.PowerManager; import android.util.Log; public class BackGroundService extends Service implements OnCompletionListener, OnPreparedListener, OnErrorListener, OnBufferingUpdateListener, MusicFocusable { private Boolean playState = false; private String station = "http://38.101.195.5:9156"; public static final float DUCK_VOLUME = 0.1f; Runnable handlePlayRequest; enum AudioFocus { NoFocusNoDuck, // we don't have audio focus, and can't duck NoFocusCanDuck, // we don't have focus, but can play at a low volume // ("ducking") Focused // we have full audio focus } private AudioFocus mAudioFocus = AudioFocus.NoFocusNoDuck; private MediaPlayer mPlayer = null; private AndroidShoutcastLib shoutcast; private AudioManager mAudioManager; AudioFocusHelper mAudioFocusHelper = null; Handler handler = new Handler(); @Override public IBinder onBind(Intent arg0) { // TODO Auto-generated method stub return null; } @Override public int onStartCommand(Intent intent, int flags, int startId) { Log.d("onStartCommand>>>", "onStartCommand"); mAudioManager = (AudioManager) getSystemService(AUDIO_SERVICE); // create the Audio Focus Helper, if the Audio Focus feature is // available (SDK 8 or above) if (android.os.Build.VERSION.SDK_INT >= 8) { mAudioFocusHelper = new AudioFocusHelper(getApplicationContext(), this); } else { mAudioFocus = AudioFocus.Focused; // no focus feature, so we always // "have" audio focus } shoutcast = new AndroidShoutcastLib(); try { Log.d("Station>>>", station); shoutcast.setShoutcastUrl(station); } catch (InvalidStreamURLException e) { // TODO Auto-generated catch block e.printStackTrace(); } new BackgroundSound().execute(); return START_STICKY; } public void onDestroy() { Log.d("onDestroy>>>", "onDestroy"); if (mPlayer.isPlaying()) { mPlayer.stop(); } mPlayer.release(); } @Override public void onGainedAudioFocus() { // TODO Auto-generated method stub } @Override public void onLostAudioFocus(boolean canDuck) { // TODO Auto-generated method stub } @Override public void onBufferingUpdate(MediaPlayer arg0, int arg1) { // TODO Auto-generated method stub } @Override public boolean onError(MediaPlayer arg0, int arg1, int arg2) { // TODO Auto-generated method stub return false; } @Override public void onPrepared(MediaPlayer arg0) { // TODO Auto-generated method stub mPlayer.start(); } private void giveUpAudioFocus() { if (mAudioFocus == AudioFocus.Focused && mAudioFocusHelper != null && mAudioFocusHelper.abandonFocus()) mAudioFocus = AudioFocus.NoFocusNoDuck; } @Override public void onCompletion(MediaPlayer arg0) { // TODO Auto-generated method stub stopSelf(); } private void getAudioFocus() { if (mAudioFocus != AudioFocus.Focused && mAudioFocusHelper != null && mAudioFocusHelper.requestFocus()) mAudioFocus = AudioFocus.Focused; } private void createMediaPlayer() { mPlayer = new MediaPlayer(); // Make sure the media player will acquire a wake-lock while // playing. If we don't do // that, the CPU might go to sleep while the song is playing, // causing playback to stop. // // Remember that to use this, we have to declare the // android.permission.WAKE_LOCK // permission in AndroidManifest.xml. mPlayer.setWakeMode(getApplicationContext(), PowerManager.PARTIAL_WAKE_LOCK); // we want the media player to notify us when it's ready preparing, // and when it's done // playing: mPlayer.setOnPreparedListener(this); mPlayer.setOnCompletionListener(this); mPlayer.setOnErrorListener(this); } private class BackgroundSound extends AsyncTask<Void, Void, Void> { @Override protected Void doInBackground(Void... params) { Log.d("doInBackground>>>", "doInBackground"); Log.d("run>>>", "run"); if (playState) { Log.d("Player", "Stop Called"); giveUpAudioFocus(); mPlayer.stop(); mPlayer.reset(); mPlayer.release(); shoutcast.stopStream(); mPlayer = null; playState = false; } else { Log.d("Player", "Play Called"); createMediaPlayer(); getAudioFocus(); try { mPlayer.setDataSource(shoutcast.startStream()); } catch (IllegalArgumentException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (SecurityException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IllegalStateException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (MalformedURLException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (InvalidStreamURLException e) { // TODO Auto-generated catch block e.printStackTrace(); } mPlayer.prepareAsync(); } return null; } } } 

Cuando ejecuto por encima de la clase de servicio, puedo reproducir la secuencia, pero mi diseño desaparece cuando el control llega a la clase de servicio

Una cosa, quiero saber que, mi conversión de la actividad al servicio es correcto o no?

¿Podría alguien sugerirme un código correcto?