android蓝牙通信 java.io.IOException: Service disco...

时间 2019-12-11

标签 android 蓝牙通信 java.io.ioexception java ioexception service disco 栏目 Android 繁體版

原文原文链接

研究android蓝牙链接时，在网上找了个例子，做为客户端在调用connect函数时失败。经查资料
java

将android

socket = device.createRfcommSocketToServiceRecord(UUID.fromString("a60f35f0-b93a-11de-8a39-08002009c666"));

改成socket

Method m;
 try {
 m = device.getClass().getMethod("createRfcommSocket", new Class[] {int.class});
 try {
 socket = (BluetoothSocket) m.invoke(device, 1);
 _bluetooth.cancelDiscovery();
 try {
 socket.connect();
 } catch (IOException e) {
 // TODO Auto-generated catch block
 e.printStackTrace();
 }
 } catch (IllegalArgumentException e) {
 // TODO Auto-generated catch block
 e.printStackTrace();
 } catch (IllegalAccessException e) {
 // TODO Auto-generated catch block
 e.printStackTrace();
 } catch (InvocationTargetException e) {
 // TODO Auto-generated catch block
 e.printStackTrace();
 }
 } catch (SecurityException e) {
 // TODO Auto-generated catch block
 e.printStackTrace();
 } catch (NoSuchMethodException e) {
 // TODO Auto-generated catch block
 e.printStackTrace();
 }

就能够链接。函数

缘由还没查出来。作个标记。
测试

有人说用00001101-0000-1000-8000-00805F9B34FB这个UUID就能够。code

但我测试使用这个UUID一样会出现：get

10-26 08:04:20.196: ERROR/ClientSocketActivity(2147): java.io.IOException: Service discovery failed
it