android藍牙HID通訊,android藍牙通訊

最近公司需要開發一個項目需要連接藍牙設備，這個設備是一款手持移動端設備，類似外設藍牙鍵盤，移動設備發送數據到PC電腦；

Android 藍牙HID ——連接藍牙鼠標、鍵盤等輸入設備。

一、 HID簡介

HID設備（Hunman Interface Device Profile），即人機交互設備，常見的有鼠標，鍵盤，游戲手柄，等等。一般有線方式都是通過USB連線連接到機器設備，作為用戶輸入設備。在藍牙技術中，HID設備的接入就是無線的了。

 二、搜索附件藍牙

 

 　　聲明需要用到藍牙對象

    BluetoothHidDevice mBluetoothHidDevice;
    BluetoothAdapter mBluetoothAdapter;
    BluetoothDevice mConnectDevice;

 

 

        mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
        if (mBluetoothAdapter == null) {
            showToast("當前設備不支持藍牙");
            return;
        }

 

IntentFilter intentFilter = new IntentFilter();
intentFilter.addAction(BluetoothAdapter.ACTION_DISCOVERY_STARTED);
intentFilter.addAction(BluetoothAdapter.ACTION_DISCOVERY_FINISHED);
intentFilter.addAction(BluetoothDevice.ACTION_FOUND);
intentFilter.addAction(BluetoothDevice.ACTION_BOND_STATE_CHANGED);
registerReceiver(mReceiver, intentFilter); // Don't forget to unregister during onDestroy
// 搜索藍牙設備
mBluetoothAdapter.startDiscovery();

 

    @Override
    protected void onDestroy() {
        super.onDestroy();
        unregisterReceiver(mReceiver);
    }

 

    // Create a BroadcastReceiver for ACTION_FOUND
    private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
        public void onReceive(Context context, Intent intent) {
            String action = intent.getAction();
            // When discovery finds a device

            if(BluetoothAdapter.ACTION_DISCOVERY_STARTED.equals(action))
            {
                showLoadingDialog("正在搜索附近的藍牙設備");
            }
            else if( BluetoothAdapter.ACTION_DISCOVERY_FINISHED.equals(action)) {
                showToast("搜索結束");
                hideLoadingDialog();
            }
            else if (BluetoothDevice.ACTION_FOUND.equals(action)) {
                // Get the BluetoothDevice object from the Intent
                BluetoothDevice bluetoothDevice = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
                deviceBeansList.add(new DeviceBean(bluetoothDevice.getName(),bluetoothDevice.getAddress(),ISPAR0));
                notifyListChange();
            }
        }
    };

 

注意:藍牙搜索需要開啟獲取地理位置權限

 

三、獲取BluetoothHidDevice

BluetoothAdapter.getDefaultAdapter().getProfileProxy(this, mProfileServiceListener,BluetoothProfile.HID_DEVICE);

  public  BluetoothProfile.ServiceListener mProfileServiceListener = new BluetoothProfile.ServiceListener() {
        @Override
        public void onServiceDisconnected(int profile) { }
        @SuppressLint("NewApi") @Override
        public void onServiceConnected(int profile, BluetoothProfile proxy) {
            if(profile==BluetoothProfile.HID_DEVICE)
            {
                mBluetoothProfile=proxy;
                mBluetoothHidDevice = (BluetoothHidDevice) proxy;
                BluetoothHidDeviceAppSdpSettings sdp = new BluetoothHidDeviceAppSdpSettings(HidBluetooth.NAME, HidBluetooth.DESCRIPTION, HidBluetooth.PROVIDER, BluetoothHidDevice.SUBCLASS1_COMBO, HidConstant.Descriptor);
                mBluetoothHidDevice.registerApp(sdp, null, null, Executors.newCachedThreadPool(), mCallback);
            }
        }
    };

  @SuppressLint("NewApi")
    public  final BluetoothHidDevice.Callback mCallback = new BluetoothHidDevice.Callback() {
        @Override
        public void onAppStatusChanged(BluetoothDevice pluggedDevice, boolean registered) { }
        @Override
        public void onConnectionStateChanged(BluetoothDevice device, int state) {

            if(state == BluetoothProfile.STATE_DISCONNECTED){
//                HidUitls.IsConnected(false);
//                if(connectionStateChangeListener != null){
//                    connectionStateChangeListener.onDisConnected();
//                }
            }else if(state == BluetoothProfile.STATE_CONNECTED){
//                HidUitls.IsConnected(true);
//                if(connectionStateChangeListener != null){
//                    connectionStateChangeListener.onConnected();
//                }
            }else if(state == BluetoothProfile.STATE_CONNECTING){
//                if(connectionStateChangeListener != null){
//                    connectionStateChangeListener.onConnecting();
//                }
            }
        }
    };

 

四、匹配藍牙

   //匹配藍牙
    public  boolean Pai(String deviceAddress){
        if(BluetoothAdapter.checkBluetoothAddress(deviceAddress)){
            try {
                mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
                if(mConnectDevice == null){
                    mConnectDevice = mBluetoothAdapter.getRemoteDevice(deviceAddress);
                }
                if(mConnectDevice.getBondState() == BluetoothDevice.BOND_NONE){
                    mConnectDevice.createBond();
                    return false;
                }else if(mConnectDevice.getBondState() == BluetoothDevice.BOND_BONDED){
                    return true;
                }else if(mConnectDevice.getBondState() == BluetoothDevice.BOND_BONDING){
                    return false;
                }
            }catch (Exception ex){ ex.printStackTrace(); }
        }
        return false;
    }

 

五、鏈接藍牙

    if(mConnectDevice == null){
            mConnectDevice = mBluetoothAdapter.getRemoteDevice(HID_ADDR);
        }
        boolean ret = mBluetoothHidDevice.connect(mConnectDevice);

 

六、發送數據

 HidDevice.sendReport(BtDevice, report.ReportId, report.ReportData);

 藍牙鏈接成功調用sendReport發送數據到PC端，PC端光標在哪里數據在哪里顯示。

 最后配置權限；

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