I am developing a note app, and I want to save my note when I closed the app (when removing the app from recent apps). I tried dispose() method but it did not work. I tried : @override void didChang...

I have the app of more than 20 screens , I want to perform a task if user is inactive/idle for a certain time. I am trying to get the app's lifecycle at root of app. But i am not getting print stateme...