viewpager2 setoffscreenpagelimit(3) 不工作

Question

Hi guys I want to make a slider with Viewpager2 that shows 3 element at the moment and I want it to look like this how I want to my slider look like but my slider is look like this how my slider look like and here is my java code

public class ExplorerFragment extends Fragment {
    ViewPager2 usersAvatarSlider;
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        View v = inflater.inflate(R.layout.explorer_fragment, container, false);
        Find(v);
        initUsersAvatarSlider();
     return v;
    }
    void Find(View v) {
        usersAvatarSlider = v.findViewById(R.id.UserViewPager2);
    }
    void initUsersAvatarSlider() {
        UserAvatarSliderAdapter userAvatarSliderAdapter = new UserAvatarSliderAdapter();
        usersAvatarSlider.setAdapter(userAvatarSliderAdapter);
        usersAvatarSlider.setOffscreenPageLimit(3);
    }
}

as u see I'm using usersAvatarSlider.setOffscreenPageLimit(3); but I don't know why it's not working

Answer 1

setOffscreenPageLimit() does not set the element count. As per the docs:

open fun setOffscreenPageLimit(limit: Int): Unit

Set the number of pages that should be retained to either side of the current page in the view hierarchy in an idle state. Pages beyond this limit will be recreated from the adapter when needed.

To set the element count, override getItemCount() in your adapter implementation UserAvatarSliderAdapter