在android中连接蓝牙耳机后，如何在内置麦克风和耳机麦克风之间切换音频输入？

1 回答

• 0

  您可以使用以下代码切换蓝牙耳机麦克风 .

  AudioManager audiomanager= (AudioManager)mContext.getSystemService(Context
              .AUDIO_SERVICE);
  IntentFilter intentFilter = new IntentFilter(AudioManager.ACTION_SCO_AUDIO_STATE_UPDATED);
      mContext.registerReceiver(mBluetoothScoReceiver, intentFilter);
  audiomanager.startBluetoothSco();
  

  并听取广播接收器 .

  private BroadcastReceiver mBluetoothScoReceiver = new BroadcastReceiver() {
      @Override
      public void onReceive(Context context, Intent intent) {
          int state = intent.getIntExtra(AudioManager.EXTRA_SCO_AUDIO_STATE, -1);
  
          if (state == AudioManager.SCO_AUDIO_STATE_CONNECTED) {
              // Start recording audio
              log("audio connected");
              startRecording();
          } else if(state == AudioManager.SCO_AUDIO_STATE_DISCONNECTED){
              log("audio disconnected");
          }
      }
  };
  

  并且要切换（断开蓝牙耳机麦克风），您可以使用此代码 .

  mAudioManager.stopBluetoothSco();
  

  回复于 2024-05-02T13:39:09+08:00