How to quit android application programmatically

Question

I Found some codes for quit an Android application programatically. By calling any one of the following code in onDestroy() will it quit application entirely?

Answer 1

If you're using Kotlin, the proper way to exit the app and alternative to System.exit() is a built-in method

exitProcess(0)

See the documentation.

Number 0 as a parameter means the exit is intended and no error occurred.