Is it possible not to reload the Android fragment?

I made a layout using Bottom Navigation View

I made it with three fragments.

The problem is that each item has a list view.

Move each item and come back, not where you were viewing the list view

to the top of the list view

I want to keep the position I saw even if I move each item, is it possible?

The sauce is as follows

Thank you^{^}

^{^}

private BottomNavigationView.OnNavigationItemSelectedListener mOnNavigationItemSelectedListener
            = = new BottomNavigationView.OnNavigationItemSelectedListener() {


        @Override
        public boolean onNavigationItemSelected(@NonNull MenuItem item)
        {

            Fragment selectedFragment = null;

            switch (item.getItemId()) {
                case R.id.navigation_home:
                    selectedFragment = MainFragment.newInstance();
                    break;
                case R.id.navigation_dashboard:
                    selectedFragment = SencondFragment.newInstance();
                    break;

                case R.id.navigation_notifications:
                    selectedFragment = ThirdFragment.newInstance();
                    break;
            }

            if(selectedFragment != null)
            {
                FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
                transaction.replace(R.id.frame_layout, selectedFragment);
                transaction.commit();
            }
            return true;

        }
    };

android

2022-09-21 17:29

1 Answers

Because replace() acts as remove() -> add(), the scroll position is initialized by regenerating the Fragment instance. Therefore, it is necessary to use hide(), show(), or save the value and reload it.

2022-09-21 17:29

If you have any answers or tips

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