onResume and onPause use case

[bangarharshit]

Is there any use case for onResume and onPause. I can see them being used with activity's lifecycle event but why are they used in navigate.

[fabiendevos]

onResume and onPause are called during navigation for consistency and balance reasons.
For example, if you have a timer constantly updating on your screen, you want to stop this timer both in the case where the App / Activity (it's the same with a Single Activity architecture) is paused (onPause) and when you navigate to a different Screen. Therefore onResume and onPause are also called on navigation.

[bangarharshit]

Thanks