通过反射调用Android的L2CAP接口

目前的Android蓝牙接口里，通过BluetoothDevice，我们只能调用到RFCOMM和SCO。

更底层的L2CAP接口并没有显式的提供出来。

 

其实通过java的反射机制，我们也是是可以调用到L2CAP接口的。

import java.io.IOException;import java.lang.reflect.Constructor;import java.lang.reflect.InvocationTargetException;import android.bluetooth.BluetoothSocket;public class BluetoothSocketFactory{public static final int TYPE_RFCOMM = 1;public static final int TYPE_SCO = 2;public static final int TYPE_L2CAP = 3;// address must use upper casepublic static final BluetoothSocket createBluetoothSocket(int type, int fd,boolean auth, boolean encrypt, String address, int port)throws IOException{BluetoothSocket socket = null;try{Constructor<BluetoothSocket> cs = BluetoothSocket.class.getDeclaredConstructor(int.class, int.class,boolean.class, boolean.class, String.class,int.class);if (!cs.isAccessible()){cs.setAccessible(true);}socket = cs.newInstance(type, fd, auth, encrypt, address, port);}catch (SecurityException e){}catch (NoSuchMethodException e){}catch (IllegalArgumentException e){}catch (InstantiationException e){}catch (IllegalAccessException e){}catch (InvocationTargetException e){}return socket;}public static void main(String args[]){BluetoothSocket socket = null;try{socket = BluetoothSocketFactory.createBluetoothSocket(BluetoothSocketFactory.TYPE_L2CAP, -1, false, false,"00:0B:24:35:4E:86", 22135);socket.connect();}catch (IOException e){}finally{if (null != socket){try{socket.close();}catch (IOException e){}}}}}