Fix bottom bar in CoordinatorLayout

Question

I have a CoordinatorLayout which contains AppBarLayout and a FrameLayout which contains fragments.

One of this fragment contai

Answer 1

To fix Bottom bar, firstly you have to use a Activity where tabs present. In that activity use different fragments. Add your tabLayout in this activity_main_tab.xml

activity_main_tab.xml

For fragment view use

fragment_tab.xml

here use app:layout_scrollFlags="scroll|enterAlways" in toolbar to make it scrollable

FragmentTabs.java

 public class FragmentTabs extends BaseFragment{

        private View rootView;
        private ViewPager viewPager;
        private TabLayout tabLayout;
        private Toolbar toolbar;
        private ViewPagerAdapter viewPagerAdapter;

        @Override
        public View onCreateView(LayoutInflater inflater, ViewGroup viewGroupContainer, Bundle savedInstanceState) {
            rootViewSearch = inflater.inflate(R.layout.fragment_tab, viewGroupContainer, false);
            initializeLayout();
            setUpActionBar();
            setUpFragmentObjects();

            return rootView;
        }


        private void initializeLayout() {
            toolbar = (Toolbar) rootView.findViewById(R.id.toolbar);
            viewPager = (ViewPager) rootView.findViewById(R.id.viewpager);
            tabLayout = (TabLayout) rootView.findViewById(R.id.tablayout);
        }


        private void setUpActionBar() {
            getApplicationContext().setSupportActionBar(toolbarSearch);
            ActionBar actionBar = getApplicationContext().getSupportActionBar();
            if(actionBar != null){
                actionBar.setTitle(Constants.BLANK);
            }
        }


        private void setUpFragmentObjects() {
            viewPagerAdapter = new ViewPagerAdapter(getApplicationContext(), getChildFragmentManager());
            viewPager.setAdapter(searchViewPagerAdapter);
            tabLayout.setupWithViewPager(viewPager);
        }
    }

ViewPagerAdapter.java

public class ViewPagerAdapter extends FragmentPagerAdapter {

    public ViewPagerAdapter(Activity activity, FragmentManager fragmentManager) {
        super(fragmentManager);
    }


    @Override
    public Fragment getItem(int position) {
        Bundle bundle;
        switch (position) {
            case 0: // For Tab 1
               // use fragment for tab 1
                return fragment1;
            case 1: // For Tab 2
                // use fragment for tab 2
                return fragment2;
            case 2: // For Tab 3
                // use fragment for tab 3
                return fragment3;
            default:
                return null;
        }
    }

    @Override
    public int getCount() {
        return 3; // no. of Tabs
    }

    @Override
    public CharSequence getPageTitle(int position) {
        switch (position) {
            case 0: // Title For Tab1
                return "Tab1";
            case 1: // Title For Tab2
                return "Tab2";
            case 2: // Title For Tab3
                return "Tab3";
            default:
                return null;
        }
    }
}