how come viewmodel is not cleared when screen orientation change?

Question

So as we know these methods will be called when orientation change in Activity.

onPause() -> onSaveInstanceState() -> onStop() -> onDestroy() -> onCreate() -> onStart() -> onRestoreInstanceState() -> onResume()

So we can see the onDestroy() method is called.

If the ViewModel() is lifecycle aware then how come the viewmodel is not cleared and preserving the data?

See https://developer.android.com/topic/libraries/architecture/viewmodel#lifecycle — Michael, Sep 06 '22 at 17:27

score 2 · Answer 1 · answered Sep 06 '22 at 17:32

2

Being lifecycle-aware doesn't mean that ViewModel has the same lifecycle with Activities/Fragments. onClear() method is called when an Activity finishes (and a Fragment is detached).

There's a nice graph comparing Activitie's and ViewModel's lifecycle in this documentation

answered Sep 06 '22 at 17:32

Yusif Mammadov

21
2

Thanks :) It seems my question is duplicate I really appreciate your answer! – Balaji Sep 06 '22 at 17:51

how come viewmodel is not cleared when screen orientation change?

1 Answers1