AppRTCBluetoothManager.java 文件源码

/** Stops and closes all components related to Bluetooth audio. */
public void stop() {
  ThreadUtils.checkIsOnMainThread();
  Log.d(TAG, "stop: BT state=" + bluetoothState);
  if (bluetoothAdapter == null) {
    return;
  }
  // Stop BT SCO connection with remote device if needed.
  stopScoAudio();
  // Close down remaining BT resources.
  if (bluetoothState == State.UNINITIALIZED) {
    return;
  }
  unregisterReceiver(bluetoothHeadsetReceiver);
  cancelTimer();
  if (bluetoothHeadset != null) {
    bluetoothAdapter.closeProfileProxy(BluetoothProfile.HEADSET, bluetoothHeadset);
    bluetoothHeadset = null;
  }
  bluetoothAdapter = null;
  bluetoothDevice = null;
  bluetoothState = State.UNINITIALIZED;
  Log.d(TAG, "stop done: BT state=" + bluetoothState);
}