Android 传统蓝牙（1）

1，  /** 打开蓝牙 */

private void open() {        mBluetoothAdapter.enable();    }

2，/** 开始扫描蓝牙设备 */

private void startScan() {        mBluetoothAdapter.startDiscovery();    }

3，      

@Override        public void onItemClick(AdapterView<?> parent, View view,                int position, long id) {            // 获取被点击的设备            BluetoothDevice device = (BluetoothDevice) parent.getItemAtPosition(position);            // 连接设备            startConnect(device);        }

}/** 连接到被点击的设备 */

private void startConnect(final BluetoothDevice device) {            new Thread(){                public void run() {//                  BluetoothSocket tmp = null;                    Method method;                    try {                        method = device.getClass().getMethod("createRfcommSocket", new Class[]{int.class});                        socket = (BluetoothSocket) method.invoke(device, 1);                        outputStream = socket.getOutputStream();                    } catch (Exception e) {//                      setState(CONNECT_FAILED);                        Log.e("TAG", e.toString());                    }//                  socket = tmp;                    try {                        socket.connect();//                      isConnect = true;                    } catch (Exception e) {//                      setState(CONNECT_FAILED);                        Log.e("TAG", e.toString());                    }                }

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protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// 初始化view
ListView listView = (ListView) findViewById(R.id.listView);
bluetoothDevices = new ArrayList();
adapter = new BluetoothDeviceListAdapter(bluetoothDevices);
listView.setAdapter(adapter);
listView.setOnItemClickListener(new OnBluetoothDeviceItemClickListener());

// 初始化蓝牙
mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();

// 关注新的蓝牙设备信息
IntentFilter filter = new IntentFilter(BluetoothDevice.ACTION_FOUND);
filter.addAction(BluetoothAdapter.ACTION_DISCOVERY_STARTED);
filter.addAction(BluetoothAdapter.ACTION_DISCOVERY_FINISHED);
mBluetoothReceiver = new BluetoothReceiver();
registerReceiver(mBluetoothReceiver, filter); // Don’t forget to unregister during onDestroy

}
private final class BluetoothReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
// When discovery finds a device
if (BluetoothDevice.ACTION_FOUND.equals(action)) {
// 发现新设备

            // Get the BluetoothDevice object from the Intent            BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);            // Add the name and address to an array adapter to show in a ListView            bluetoothDevices.add(device);            adapter.notifyDataSetChanged();        }else if (BluetoothAdapter.ACTION_DISCOVERY_STARTED.equals(action)) {            // 开始扫描设备            toast("开始扫描设备");            bluetoothDevices.clear();            adapter.notifyDataSetChanged();        }else if (BluetoothAdapter.ACTION_DISCOVERY_FINISHED.equals(action)) {            // 停止扫描设备            toast("停止扫描设备");        }    }}

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