Question

我正在尝试创建具有READ和NOTIFY属性的多个特征的BLE服务（适用于Android）。到目前为止，我可以连接到GATT服务器并从每个特征读取数据。另外，我可以订阅其中之一的通知。但是，也具有NOTIFY属性的另一个特征是不让我进行订阅。我正在使用以下代码：

    public static UUID SERVICE          = UUID.fromString("00000010-0000-1000-8000-00805f9b34fb");
    public static UUID CHARACTERISTIC   = UUID.fromString("00000011-0000-1000-8000-00805f9b34fb");
    public static UUID CHARACTERISTIC_2 = UUID.fromString("00000012-0000-1000-8000-00805f9b34fb");

    public static UUID CLIENT_CONFIG  = UUID.fromString("00002902-0000-1000-8000-00805f9b34fb");
    public static UUID CLIENT_CONFIG2 = UUID.fromString("00002903-0000-1000-8000-00805f9b34fb");

        //Create a service
        BluetoothGattService service = new BluetoothGattService(SERVICE, BluetoothGattService.SERVICE_TYPE_PRIMARY);

        //CREATE THE FIRST CHARACTERISTIC
        BluetoothGattCharacteristic Characteristic1 = new BluetoothGattCharacteristic(CHARACTERISTIC1,
                BluetoothGattCharacteristic.PROPERTY_READ
                        | BluetoothGattCharacteristic.PROPERTY_NOTIFY
                        | BluetoothGattCharacteristic.PROPERTY_WRITE,

                        BluetoothGattCharacteristic.PERMISSION_READ_ENCRYPTED_MITM
                        | BluetoothGattCharacteristic.PERMISSION_WRITE_ENCRYPTED_MITM);

        //Create a descriptor
        BluetoothGattDescriptor rideDescriptor = new BluetoothGattDescriptor(CLIENT_CONFIG,
                BluetoothGattDescriptor.PERMISSION_READ_ENCRYPTED_MITM
                        | BluetoothGattDescriptor.PERMISSION_WRITE_ENCRYPTED_MITM);
        ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

        //CREATE THE SECOND CHARACTERISTIC
        BluetoothGattCharacteristic Characteristic2 = new BluetoothGattCharacteristic(CHARACTERISTIC,
                        BluetoothGattCharacteristic.PROPERTY_NOTIFY
                        | BluetoothGattCharacteristic.PROPERTY_READ,

                        BluetoothGattCharacteristic.PERMISSION_READ_ENCRYPTED_MITM
                        | BluetoothGattCharacteristic.PERMISSION_WRITE_ENCRYPTED_MITM);

        BluetoothGattDescriptor rideDescriptor2 = new BluetoothGattDescriptor(CLIENT_CONFIG2,
                BluetoothGattDescriptor.PERMISSION_READ_ENCRYPTED_MITM
                        | BluetoothGattDescriptor.PERMISSION_READ_ENCRYPTED_MITM);
        ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

        //Add the characteristic and the descriptor to the service
        Characteristic1.addDescriptor(rideDescriptor);
        Characteristic2.addDescriptor(rideDescriptor2);

        service.addCharacteristic(rideCharacteristic);
        service.addCharacteristic(rideCharacteristic2); ```

I think it has something to do with the UUIDs but I'm not sure. 
Any ideas?

Thanks in advance.

处理BLE Android中的多个通知特征

0 个答案: