Device.java 文件源码

@RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
@Override
public void onMtuChanged(BluetoothGatt gatt, int mtu, int status) {
    BluetoothGattCallback target;
    synchronized (lock) {
        target = currentCallback;
    }
    target.onMtuChanged(gatt, mtu, status);
}