How to disable destroying of fragments in the new ViewPager2?

Question

In the FragmentPagerAdapter I can override destroyItem method and just remove line super.destroyItem(container, position, object);

    @Override
    public void destroyItem(@NonNull ViewGroup container, int position, @NonNull Object object) {
        //don't destory items after switching
        //super.destroyItem(container, position, object);
    }

Then fragments will no longer be deleted. But in the new FragmentStateAdapter I have not found the same method.

I don't think they intended for Fragments to not be detached. Although you could have also set the off page limit just like that on previous ViewPager too. — EpicPandaForce, Feb 01 '20 at 17:44

score 2 · Answer 1 · edited Feb 01 '20 at 21:55

2

I found the solution. Just need add the one line to the your viewPager object:

mViewPager.setOffscreenPageLimit(numberFragmentsYouWantToKeep);

This will allow you to store the desired number of fragments in memory.

edited Feb 01 '20 at 21:55

E_net4

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answered Feb 01 '20 at 12:38

Dyno Cris

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How to disable destroying of fragments in the new ViewPager2?

1 Answers1