set Variable at init and reduce it when WatchFace is running

Hello,
I would like to store a value after installatin the Watchface, FirstStart or initialize() or onStart() and then decrease it when onUpdate() on my Watchface.
This works works, but when I change to another widget (up/down on my Fenix5) and go back, the value goes to its startValue (=15).
How do I have to do this?
I tried with settings and with storage, without success!
Thanks

function initialize() {
        AppBase.initialize();
        Storage.setValue("myCounter", 15); 
    }

    function onUpdate(dc) {

        var myCounter= Storage.getValue("myCounter");
        System.println("myCounter:" + myCounter.toString()); 

        Storage.setValue("myCounter", myCounter-1);           
        System.println("myCounter:" + myCounter.toString()); 

???????...

Former Member over 8 years ago

initialize() gets called every time the watchface starts up, so changing to another widget and back will cause initialize to run again. If you are trying to set this value only during the first run following installation, then I might check if the value in Storage is null before setting it. If it is not null, then the application has run before on the device and the value has been set in storage.

Seli17 over 8 years ago

That worked, Thanks