1、添加权限<uses-permission android:name="android.permission.BLUETOOTH_ADMIN" /> <uses-permission android:name="android.permission.BLUETOOTH" /> 2、得到蓝牙适配器BluetoothAdapter mBtAdapter = BluetoothAdapter.getDefaultAdapter(); 3、搜索设备 mBtAdapter.startDiscovery(); 4、在广播中得到蓝牙设备BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE); 5、获取蓝牙的名称和地址device.getName() + "\n" + device.getAddress() 连接设备 ：BluetoothDevice device = mBluetoothAdapter.getRemoteDevice(address); 开子线程连接设备BluetoothSocket tmp = device.createRfcommSocketToServiceRecord( MY_UUID_SECURE); 连接成功后InputStream tmpIn = socket.getInputStream(); OutputStream tmpOut =socket.getOutputStream(); 就可以进行通信了 6、关闭蓝牙mBtAdapter.disable() demo下载：http://download.csdn.net/detail/u013866845/9834581
private final BroadcastReceiver mReceiver = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { String action = intent.getAction(); // When discovery finds a device if (BluetoothDevice.ACTION_FOUND.equals(action)) { // Get the BluetoothDevice object from the Intent BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE); // If it's already paired, skip it, because it's been listed already if (device.getBondState() != BluetoothDevice.BOND_BONDED) { mNewDevicesArrayAdapter.add(device.getName() + "\n" + device.getAddress()); } // When discovery is finished, change the Activity title } else if (BluetoothAdapter.ACTION_DISCOVERY_FINISHED.equals(action)) { setProgressBarIndeterminateVisibility(false); setTitle(R.string.select_device); if (mNewDevicesArrayAdapter.getCount() == 0) { String noDevices = getResources().getText(R.string.none_found).toString(); mNewDevicesArrayAdapter.add(noDevices); } } } };
