Checking all things only possibility 5 seems to remain. SO that is my Q. How do I save the state of a property in a class, when the app where that class is part from, is closed? The case here is actually a countdown:
The app can be used NN times.
Where NN is the number of remaining possibilities...
every time the app is shut down and started again NN is 1 down until 0 is reached. Any clue?