Android: AudioRecord 通过蓝牙设备录制声音

am = (AudioManager) getSystemService(Context.AUDIO_SERVICE); registerReceiver(new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { int state = intent.getIntExtra(AudioManager.EXTRA_SCO_AUDIO_STATE, -1); Log.d(TAG, "Audio SCO state: " + state); if (AudioManager.SCO_AUDIO_STATE_CONNECTED == state) { /* * Now the connection has been established to the bluetooth device. * Record audio or whatever (on another thread).With AudioRecord you can record with an object created like this: * new AudioRecord(MediaRecorder.AudioSource.MIC, 8000, AudioFormat.CHANNEL_CONFIGURATION_MONO, * AudioFormat.ENCODING_PCM_16BIT, audioBufferSize); * * After finishing, don't forget to unregister this receiver and * to stop the bluetooth connection with am.stopBluetoothSco(); */ unregisterReceiver(this); } } }, new IntentFilter(AudioManager.ACTION_SCO_AUDIO_STATE_CHANGED)); Log.d(TAG, "starting bluetooth"); am.startBluetoothSco();

set the permissions: <uses-permission android:name="android.permission.RECORD_AUDIO"/> 

<uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS"/> 

<uses-permission android:name="android.permission.BROADCAST_STICKY"/>