Android:如何检测哪个蓝牙设备当前正在获取音频流？

private BluetoothProfile.ServiceListener mServiceListener = new BluetoothProfile.ServiceListener() {
    @Override
    public void onServiceConnected(int profile, BluetoothProfile proxy) {
        if (profile == BluetoothProfile.A2DP) {
            BluetoothA2dp a2dp = (BluetoothA2dp) proxy;
            List<BluetoothDevice> devices = a2dp.getConnectedDevices();
            for (BluetoothDevice device : devices) {
                if (a2dp.isA2dpPlaying(device)) {
                    // 当前设备正在获取音频流
                    String deviceName = device.getName();
                    String deviceAddress = device.getAddress();
                    // 进行相应的处理
                }
            }
        }
    }

    @Override
    public void onServiceDisconnected(int profile) {
        if (profile == BluetoothProfile.A2DP) {
            // 断开连接时的处理
        }
    }
};

// 注册监听器
BluetoothAdapter bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
bluetoothAdapter.getProfileProxy(context, mServiceListener, BluetoothProfile.A2DP);