App re-enter after exit on Fenix 5

The first place I'd look in the input delegate and make sure you are returning a true/false as needed.

I missed returning true in the onKey() in the class testDelegate that extends WatchUi.BehaviorDelegate  but however unfortunately nothing changed

If you add a callback for onBack(), and return false, what happens if you hit the back button to exit?

Also, before you do session.save() or session.discard(), you've stopped the recording, correct?

yes I stop the recording with session.stop() before both session.save() or session.discard() or session.start() (in case of resume).

I don't understand exactly what you mean for the callback in the onBack()... Do you mean something like the code below ?

class testDelegate extends WatchUi.BehaviorDelegate {

           function onBack(){ return false; }

}

If this code above is correct nothing happens when ESC key is pressed (I tested that on the simulator because at the moment I've no access to the Fenix 5). One more detail; the application works properly on the simulator, it has this strange behavior only in the real watch.

Thank you

Yes, but in the delegate where you also bring up your menu, so the same place.

edocit said:

I missed returning true in the onKey() in the class testDelegate that extends WatchUi.BehaviorDelegate  but however unfortunately nothing changed

What if instead of pushing your menu, you just stop and discard the session, then call exit()?

I didn't push a menu but I implemented that as a Layout in XML then I started a timer that every X milliseconds triggers a WatchUi.requestUpdate() then I have an integer that from the view in the onUpdate(dc) calls the onLayout(dc)  and uses that integer to dispatch one of the layouts described in the XML.

So I have no delegate for the menu but everything is handled by the press of physichal keys in the WatchUi.BehaviourDelegate that changes the integer (FSM state) and then allows, on the update called on timer period expired, to change the GUI. This is the only Delegate I have in my app.

So in your WatchUi.BehaviuorDelegate have 

functiononBack() {

  session.stop();

  session.discard(); 

return false:

}

using that function simulator raise

"a class method was invoked on a Session that is no longer valid"