Now I can read the data, thanks =)
I have one more question. I'm trying to set up Auto Notifications for all
available services.
So far, the callbacks (in onCharacteristicChanged) do not come.
In the class BluetoothGattDescriptor I have:
public static final byte[] ENABLE_NOTIFICATION_VALUE = {0x01, 0x00};
Is it a common constant, or it is different from device to the device? I
don't found a datasheet (constants describingon) on the Developer
<https://www.myvert.com/> page .
Also,here is my code to enable notifications.
1. public void startNotifying()
2. {
3.
4.
5. mBluetoothGattServices=mBluetoothGatt.getServices();
6. for (BluetoothGattService device:mBluetoothGattServices )
7. {
8.
9. mBluetoothGattCharacteristics = device.getCharacteristics
();
10.
11. for (BluetoothGattCharacteristic
caracteristic:mBluetoothGattCharacteristics
)
12. {
13. setNotificationForCharacteristic(caracteristic,true);
14. try {
15. Thread.sleep(300);
16. } catch (InterruptedException e) {
17. e.printStackTrace();
18. }
19. }
20. }
21.
22. }
23.
24. public void setNotificationForCharacteristic(
BluetoothGattCharacteristic ch, boolean enabled) {
25.
26.
27. mBluetoothGatt.setCharacteristicNotification(ch, enabled);
28.
29.
30. for (BluetoothGattDescriptor descriptor:ch.getDescriptors()){
31. descriptor.setValue(BluetoothGattDescriptor.
ENABLE_NOTIFICATION_VALUE);
32. mBluetoothGatt.writeDescriptor(descriptor);
33. }
34.
35. }
пятница, 14 октября 2016 г., 23:21:10 UTC+3 пользователь Александр
Сергеевич Джус написал:
>
> Hello, I want to use Bluetooth 4.0 to connect the Vert device. The problem
> is,that I have android 4.4, but your official example is based on android
> 6.0. I rebuilded this example to work on my device, it starts with
> problems (I can connect and get BleService(s)/BleCharacteristic(s), but
> haracteristic.getValue("...") always null ). So can you say what is wrong,
> and what should I do to get Vert's values ?
>
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