android - ändern - Wie man den Fehler onClientConnectionState()-status=22 clientIf=7 in BLE löst



seo title ryte (0)

Ich habe eine Android-Anwendung, die Bluetooth Low Energy (BLE) mit meinem Handy verbindet. Die Anwendung funktionierte gut in den fast Telefon wie Galaxy S5 (Android 5.0.1), Galaxy S6 (Android 6.0). Es hat jedoch ein kritisches Problem in Galaxy Note 3 (Android 5.0.1).

Wenn ich die Funktion connect() aufrufen und dann die Funktion readCharacteristic() , wird der Fehler zurückgegeben:

onClientConnectionState () - status = 22 clientIf = 7

Der Fehler tritt auf, nachdem ich die connect ca. 2 Sekunden aufgerufen habe. Ich suche eine Lösung, wie zum Beispiel eine Verzögerung vor Aufruf von readCharacteristic() , aber es kann nicht lösen.

Kannst du mein Problem lösen?

Allen danken.

Das ist mein Code:

 private final BluetoothGattCallback mGattCallback = new BluetoothGattCallback() {
   @Override
   public void onConnectionStateChange(BluetoothGatt gatt, int status, int newState) {

     if (newState == BluetoothProfile.STATE_CONNECTED) {               
        mBluetoothGatt.discoverServices();      
     } else if (newState == BluetoothProfile.STATE_DISCONNECTED) {}
     }

     @Override
     public void onServicesDiscovered(BluetoothGatt gatt, int status) {
       if (status == BluetoothGatt.GATT_SUCCESS) {
          try {
            Thread.sleep(500);
            readCharacteristic();
          } catch (InterruptedException e) {
            e.printStackTrace();
          }

       } else {
           Log.w(TAG, "onServicesDiscovered received: " + status);
       }
     }

     @Override
     public void onCharacteristicRead(BluetoothGatt gatt,
                                         BluetoothGattCharacteristic characteristic,
                                         int status) {           
     }

     @Override
     public void onCharacteristicChanged(BluetoothGatt gatt,
                                            BluetoothGattCharacteristic characteristic) {            
     }
 };

 public void readCharacteristic() {
   /*check if the service is available on the device*/
   BluetoothGattService mCustomService = mBluetoothGatt.getService(UUID.fromString("00001c00-d102-11e1-9b23-00025b00123"));
   /*get the read characteristic from the service*/
   BluetoothGattCharacteristic mReadCharacteristic = mCustomService.getCharacteristic(UUID.fromString("00001233-d102-11e1-9b23-00025b00a5a5"));
   mBluetoothGatt.setCharacteristicNotification(mReadCharacteristic, true);
   BluetoothGattDescriptor descriptor = mReadCharacteristic.getDescriptor(
                UUID.fromString(SampleGattAttributes.CLIENT_CHARACTERISTIC_CONFIG));
   descriptor.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
   mBluetoothGatt.writeDescriptor(descriptor);
 }

Dies ist meine Full-Service-Funktionsdatei zum Verbinden von BLE

public class ConnectionService extends Service{
    private BluetoothLeService mBluetoothLeService;
    public String mDeviceAddress="0A:1B:6C:22:11:3D";
    private ServiceMonitor serviceMonitor = ServiceMonitor.getInstance();
    private final ServiceConnection mServiceConnection = new ServiceConnection() {

        @Override
        public void onServiceConnected(ComponentName componentName, IBinder service) {           
            mBluetoothLeService = ((BluetoothLeService.LocalBinder) service).getService();
            if (!mBluetoothLeService.initialize()) {
                Log.e(TAG, "Unable to initialize Bluetooth");
            }
            mBluetoothLeService.connect(mDeviceAddress);
        }
        @Override
        public void onServiceDisconnected(ComponentName componentName) {
            mBluetoothLeService = null;
        }
    };

    @Override
    public void onCreate() {
        super.onCreate();        
    }

    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }
    @Override
    public void onDestroy() {
        if(mGattUpdateReceiver!=null) {
            unregisterReceiver(mGattUpdateReceiver);
        }
        if(mServiceConnection!=null) {
            unbindService(mServiceConnection);
        }
    }


    @Override
    public int onStartCommand(Intent intent, int flags, int startId)
    {      
        //If some device is connecting to phone, let disconnect 
        if(mConnected==true) {
            mBluetoothLeService.disconnect();           
        } 
        //If bluetooth is enable    
        if (BleUtils.getBluetoothAdapter(getApplicationContext()).enable()) {
            Intent gattServiceIntent = new Intent(this, BluetoothLeService.class);
            bindService(gattServiceIntent, mServiceConnection, BIND_AUTO_CREATE);
            registerReceiver(mGattUpdateReceiver, makeGattUpdateIntentFilter());
            //Try to reconnect if the connect is not successful
            if (mBluetoothLeService != null) {
                new CountDownTimer(3000,1000) {
                    public void onTick(long millisUntilFinished) {}
                    public void onFinish() {
                        final boolean result = mBluetoothLeService.connect(mDeviceAddress);
                        Log.d(TAG, "Connect request result=" + result);
                    }
                }.start();
            }            
        }
        return START_STICKY;
}




android-5.0-lollipop