How to keep fragment view state?

Question

I have doubt in fragment system.

I have two fragments like A and B

If i move A to B,

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Answer 1

You have to store recyclerview scroll position, FAB button visibility in a variable and set those values after onViewCreated is called.

OR

You can store it in Bundle of onSaveInstanceState and retain its state

@Override
public void onSaveInstanceState(Bundle outState) {
    super.onSaveInstanceState(outState);
}