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Android_Tabs_and_Fragments

Partial WhatsApp UI Clone Using Tabs Controller and Fragments

NOW THIS FragmentPagerAdapter IS DEPRECATED SO USE FragmentStateAdapter
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Code

FragmentAdapter.java

//--------------------Deprecated----------------------
public class FragmentAdapter extends FragmentPagerAdapter {

    int tabCount = 0;

    public FragmentAdapter(@NonNull FragmentManager fm, int behavior) {

        super(fm, behavior);
        tabCount = behavior;
    }

    @NonNull
    @Override
    public Fragment getItem(int position) {

        switch (position){
            case 0 : return new FragmentChat();
            case 1 : return new FragmentStatus();
            case 2 : return new FragmentCalls();

            default: return  new FragmentChat();
        }
    }

    @Override
    public int getCount() {
        return tabCount;
    }

    @Nullable
    @Override
    public CharSequence getPageTitle(int position) {
        String title = "";

        switch (position){
            case 0: title = "CHATS"; break;
            case 1: title = "STATUS"; break;
            case 2: title = "CALLS"; break;

            default: title = "Not Specified"; break;
        }
        return title;
    }
}

MainActivity.java

TabLayout tabLayout;
ViewPager viewPager;

viewPager = findViewById(R.id.viewPager);
viewPager.setAdapter(new FragmentAdapter(getSupportFragmentManager(), 3)); // Deprecated


tabLayout = findViewById(R.id.tabLayout);
tabLayout.setupWithViewPager(viewPager);