蓝牙最简单的例子，最难得的简单
| /** 服务器端和客户端工程中都必须有这两个权限申请 <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" /> <uses-permission android:name="android.permission.BLUETOOTH" /> 关于UUID。。。UUID客户端和服务端一定要一致。UUID不能和其他的一样。一定要自己去申请一个 请从http://www.uuidgenerator.com上获取你自己的UUID 这行代码之前一定要确保蓝牙是打开状态的 打开蓝牙的代码（可以用BluetoothAdapter的方法enable()。关闭为disable()）或 Intent enableIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE); startActivityForResult(enableIntent, REQUEST_ENABLE_BT);//会打开一个对话框询问是否打开蓝牙 或startActivity(enableIntent) 可被搜索的代码 Intent discoverableIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_DISCOVERABLE); discoverableIntent.putExtra(BluetoothAdapter.EXTRA_DISCOVERABLE_DURATION, 300); startActivity(discoverableIntent); 或startActivityForResult(discoverableIntent) */ 1.服务器端： UUID uuid = uuid.fromString(”27648B4D-D854-5674-FA60E4F535E44AF7″); BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter(); BluetoothServerSocket serverSocket = adapter.listenUsingRfcommWithServiceRecord(”MyBluetoothApp”, uuid); BluetoothSocket socket = serverSocket.accept(); 2.客户端 UUID uuid = uuid.fromString(“27648B4D-D854-5674-FA60E4F535E44AF7″); BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter(); BluetoothDevice device = adapter.getRemoteDevice(“00:11:22:33:44:55″);//服务器的蓝牙地址 BluetoothSocket socket = device.createRfcommSocketToServiceRecord(uuid); adapter.connect(); 3.双方连接上后，就开始读写了 InputStream in = socket.getInputStream(); OutputStream out = socket.getOutputStream(); 好了，这是最简单的。防止出现异常等等。。。情况自己扩展 |
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