cannot use `BottomNavigationView` and `ViewPager` and `TabLayout` simultaneously

Question

I did so much researches in the internet and the conclusion was that we cannot use BottomNavigationView and ViewPager and TabLayout simultaneously. but there are a lot of app such as Instagram that merged them. my question is that how can they do that? do they use a special trick or not?

Answer 1

you can create bottomNavigationView in activity and attach fragment in it with this code when click a on item of it:

        FragmentManager fragmentManager = getSupportFragmentManager();
        FragmentTransaction transaction = fragmentManager.beginTransaction()
                .replace(frameId, fragment, "fragTransaction");
        transaction.commit();

and then create a fragment wiht a tabLayout and viewPager to control child fragment in it and you most using to control fragment in viewPagerAdapter

    FragmentManager fragmentManager = getChildFragmentManager();
    FragmentTransaction transaction = fragmentManager.beginTransaction()
            .replace(frameId, fragment, "fragTransaction");
    transaction.commit();