UWP RadialController (Surface Dial) loses rotation

Question

I use the Microsoft Surface Dial in my UWP application
[Target version "Win 11 (10.0; Build 22000)", Min version "Win10, version 2004"]
to rotate an object and confirm his position by click.

For this purposes, I use the RotationChanged and ButtonClicked events.
Now it happens that while the dial is in use (rotating), no more RotationChanged events occure in the app. This happens several times a day and is not reproducible. The ButtonClicked event still works!

As a workaround, the battery of the dial must be removed and replaced.
After that, the dial works immediately without any problems.

Details:

• The DIAL menu is not needed, so it is suppressed.
• I use the MVVM pattern and need the DIAL control on selected ViewModels.
• I am currently providing the RadialController via DepencyInjection (singleton) in the ViewModels (Application wide lifecycle).
• As a test, I have initialized the RadialController separately for each ViewModel (ViewModel wide lifecycle).
• At least, on ControlAcquired event I reinitialize the RadialController like in the ctor. I didn't always do that, but hoping it would improve the situation. But it didn't.

I tried all the examples and read all the documentation, unfortunately without success.

Does anyone know this behavior?
How can this happen and how can I prevent it?
What is the prevered lifecycle management for RadialController?

If you have further questions, I am happy to provide excerpts from my code.

Best regards
Torsten

Answer 1

Hallo Torsten,

Wenn ein Problem sporadisch auftritt (ein paar Mal am Tag, wie Du andeutest), klingt es nach einer Computer-Anomalie (Bug). In diesem Fall kannst Du den Bug auf die folgenden empfohlenen Arten melden:

1. Sendest Du Feedback an Microsoft mit der Feedback Hub-App;
2. Erstellst Du eine Supportanfrage;
3. Sendest Du ein Problem auf GitHub;

Die wahrscheinlich beste Option zur schnellen Lösung eines komplexen Problems wie Deines ist die zweite Option. Dieser Artikel enthält weitere Einzelheiten:

What is the latest site/place to report UWP Bugs?

Gruß,

Ivan Dragov