android how to scroll BottomNavigationView with Fragment Tablayout ViewPager in side Fragment RecyclerView Scroll toolbar

Question

android BottomNavigationView with ViewPager implement Fragment and fragment inside tablayout attached with ViewPager Fragment RecyclerView Scroll Toolbar scroll

if RecyclerView Scroll toolbar scroll Please help me

As like this image

Answer 1

You can add TabLayout with PagerView by following step:

Step 1: Add layout into you main xml like

<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/main_content"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <android.support.design.widget.TabLayout
        android:id="@+id/tabLayout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="?attr/colorPrimary"
        android:minHeight="?attr/actionBarSize"
        android:tabStripEnabled="true"
        app:tabBackground="@drawable/tab_color_selector"// make a xml selector
        app:tabPaddingEnd="0dp"
        app:tabIndicatorColor="#ff727272"
        app:tabPaddingStart="0dp"
        app:tabSelectedTextColor="#ffffff"></android.support.design.widget.TabLayout>

    <android.support.v4.view.ViewPager
        android:id="@+id/container"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1"
        app:layout_behavior="@string/appbar_scrolling_view_behavior" />

</LinearLayout>
</RelativeLayout>

Step 2: Find these into your Activity and set FragmentPagerAdapter into PagerView and set other properties like this

TabLayout tabLayout = (TabLayout) findViewById(R.id.tabLayout);
tabLayout.addTab(tabLayout.newTab().setText("Artcles"));
tabLayout.addTab(tabLayout.newTab().setText("Dicussion"));
tabLayout.addTab(tabLayout.newTab().setText("News"));



ViewPager mViewPager = (ViewPager) findViewById(R.id.container);

ArrayList<Fragment> fragments = new ArrayList<>();
        fragments.add(new ArtclesFragment());// create an ArtclesFragment 
        fragments.add(new DicussionFragment());// Create a DicussionFragment 
        fragments.add(new NewsFragment());   //Create a NewsFragment
 mViewPager.setAdapter(new FragPagerAdaptor(getSupportFragmentManager(), fragments););



  mViewPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
        @Override
        public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {

        }

        @Override
        public void onPageSelected(int position) {
            tabLayout.getTabAt(position).select();
        }

        @Override
        public void onPageScrollStateChanged(int state) {

        }
    });
    tabLayout.addOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
        @Override
        public void onTabSelected(TabLayout.Tab tab) {
            mViewPager.setCurrentItem(tab.getPosition());
        }

        @Override
        public void onTabUnselected(TabLayout.Tab tab) {

        }

        @Override
        public void onTabReselected(TabLayout.Tab tab) {

        }
    });

FragPagerAdaptor look like:

public class FragPagerAdaptor extends FragmentPagerAdapter {
private ArrayList<Fragment> fragments;

public FragPagerAdaptor(FragmentManager fm, ArrayList<Fragment> fragments) {
    super(fm);
    this.fragments = fragments;
}

@Override
public Fragment getItem(int position) {
    return fragments.get(position);
}

@Override
public int getCount() {
    return fragments == null ? 0 : fragments.size();
}
}

Note: You have to create separate fragemet for each tab.

Hope it help you understand basic implementation of Tab and PagerView TabLayout.