靜音

Question

還有就是通過ExoPlayer 2.播放音頻，從互聯網來電時聲音靜音0怎樣使，和代碼，當通話結束，回到原來的？

public class Player extends AppCompatActivity { 

    private String stream; 
    private boolean isPlay; 

    private ImageButton btnPLayPause; 

    BandwidthMeter bandwidthMeter; 
    TrackSelector trackSelector; 
    SimpleExoPlayer player; 
    private SimpleExoPlayerView simpleExoPlayerView; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_player); 

     btnPLayPause = (ImageButton) findViewById(R.id.btnPLayPause); 

     stream = "http://site.ru/radio.mp3"; 

     bandwidthMeter = new DefaultBandwidthMeter(); 
     TrackSelection.Factory streamSelectionFactory = new AdaptiveVideoTrackSelection.Factory(bandwidthMeter); 
     trackSelector = new DefaultTrackSelector(streamSelectionFactory); 

     player = ExoPlayerFactory.newSimpleInstance(this, trackSelector, new DefaultLoadControl()); 
     simpleExoPlayerView = new SimpleExoPlayerView(this); 
     simpleExoPlayerView = (SimpleExoPlayerView) findViewById(R.id.player_view); 
     simpleExoPlayerView.setUseController(true); 
     simpleExoPlayerView.requestFocus(); 
     simpleExoPlayerView.setPlayer(player); 
     Uri streamUri = Uri.parse(stream); 
     DefaultBandwidthMeter bandwidthMeter = new DefaultBandwidthMeter(); 
     DataSource.Factory dataSourceFactory = new DefaultDataSourceFactory(this, Util.getUserAgent(this, "yourApplicationName"), bandwidthMeter); 
     ExtractorsFactory extractorsFactory = new DefaultExtractorsFactory(); 

     MediaSource mediaSource = new ExtractorMediaSource(streamUri, dataSourceFactory, extractorsFactory, null, null); 
      player.prepare(mediaSource); 

     player.setPlayWhenReady(true); 
     isPlay = true; 

     if (player.getPlayWhenReady() == true) { 
      btnPLayPause.setImageResource(R.drawable.icon_stop); 
     } 

    } 

    @Override 
    protected void onDestroy() { 
     NotificationManager notifManager= (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE); 
     notifManager.cancelAll(); 
     super.onDestroy(); 
     player.release(); 
    } 

    public void onPlayPause(View view) { 
     if (isPlay == true) { 
      if (player.getPlayWhenReady() == true) { 
       player.setPlayWhenReady(false); 
       isPlay = false; 
       btnPLayPause.setImageResource(R.drawable.icon_play); 
      } 
     } else if (isPlay == false) { 
      if (player.getPlayWhenReady() == false) { 
       player.setPlayWhenReady(true); 
       isPlay = true; 
       btnPLayPause.setImageResource(R.drawable.icon_stop); 
      } 
     } 
    } 

} 

人們希望舉一個例子，或者一個類似的例子

Answer 1

您需要實現PhoneStateListener，類似的東西的鏈接：

class TeleListener extends PhoneStateListener { 
    public void onCallStateChanged(int state, String incomingNumber) { 
     super.onCallStateChanged(state, incomingNumber); 
     switch (state) { 
      case TelephonyManager.CALL_STATE_IDLE: 
       // CALL_STATE_IDLE; 
       setVolumeOn(); 
       break; 
      case TelephonyManager.CALL_STATE_OFFHOOK: 
       // CALL_STATE_OFFHOOK; call ends      
       break; 
      case TelephonyManager.CALL_STATE_RINGING: 
       // CALL_STATE_RINGING 
       silent(); 
       break; 
      default: 
       break; 
     } 
    } 
} 

沉默（）和setVolumeOn（）是你的，基本上你要保持當前的音量靜音（）和沉默的聲音，然後setVolumeOn（）

恢復呢？這你如何註冊（開始聽）：

private TeleListener teleListener; 
private TelephonyManager telephonyMgr; 
public void start() { 
    teleListener = new TeleListener(); 
    telephonyMgr.listen(teleListener, PhoneStateListener.LISTEN_CALL_STATE); 
} 

和註銷（停止監聽）：

public void stop() { 
    telephonyMgr.listen(teleListener, PhoneStateListener.LISTEN_NONE); 
}