Exit app is not working some time

[netsolutions1 (Muhammed Rafeeq)]

In Some times, Exit from app is not Working when click on back navigation. Blocks are provided below.

[Taifun]

always switch screens correctly

How to switch screens correctly

I see many issues done by users because they switched screens not correct. This below is now just one of many other solutions: [blocks] If you dont open/close screens correct your app will get possible runtime errors. Possible errors: (example) Unable to add window -- token android.os.BinderProxy@45d459c0 is not valid; is your activity running? Iam sure you don’t want that. Then please do it in the future and switch screens correct. General Tips and Tricks for App Inventor/Makeroid …

Taifun

[netsolutions1 (Muhammed Rafeeq)]

There is no issue when closing a screen. Only problem when close application function

[Taifun]

read this for better understanding why switching screens also affects closing the app
App Inventor Tutorials and Examples: Manager Screen | Pura Vida Apps
protip: therefore switch screens correctly to be able to close the app
Taifun

[netsolutions1 (Muhammed Rafeeq)]

How set it if we opens screen with a value?