Question 126819 in Android Studio Question posted in
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Android Studio – Migrating from ViewPager

I’m trying to convert my app to use ViewPager 2, however I’m stuck on converting to FragmentStateAdapter from FragmentStatePagerAdapter. I have

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2

Answers


  1. 0

    Either use this as your activity is a FragmentActivity or if you want to fill up part of the screen get a reference to the fragment.

    Other constructor options are

    FragmentStateAdapter(fragment: Fragment)
FragmentStateAdapter(fragmentActivity: FragmentActivity)

    viewpager -> viewpager2 migration documentation

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  2. 0

    In order to make it work you can fix using

            viewPager.setAdapter(new FragmentStateAdapter(this.getSupportFragmentManager(),getLifecycle()) {
        
        @NonNull
        @Override
        public Fragment createFragment(int position) {
            return null;
        }

        @Override
        public int getItemCount() {
            return 0;
        }
       });

    I had the same migration issue sometime ago and found that creating a custom fragment state adapter way quite flexible and much more readable.

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