Problem with Viewpager in CoordinatorLayout

There is such a CoordinatorLayout :

 <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" xmlns:app="http://schemas.android.com/apk/res-auto"> <android.support.design.widget.CoordinatorLayout android:id="@+id/main_content" android:layout_width="match_parent" android:layout_height="match_parent"> <android.support.design.widget.AppBarLayout android:id="@+id/appbar" android:layout_width="match_parent" android:layout_height="wrap_content"> <android.support.v7.widget.Toolbar android:id="@+id/toolbar" android:layout_width="match_parent" android:layout_height="wrap_content" android:background="@color/colorPrimaryDark" app:layout_scrollFlags="scroll|enterAlways"> </android.support.v7.widget.Toolbar> <android.support.design.widget.TabLayout android:id="@+id/result_tabs" android:layout_width="match_parent" android:layout_height="wrap_content" android:background="@color/colorPrimaryDark" android:scrollbars="horizontal"/> </android.support.design.widget.AppBarLayout> <android.support.v4.view.ViewPager android:id="@+id/viewpager" android:layout_width="match_parent" android:layout_height="wrap_content" app:layout_behavior="@string/appbar_scrolling_view_behavior"> </android.support.v4.view.ViewPager> </android.support.design.widget.CoordinatorLayout> </RelativeLayout> 

Fragment (removed only OnClickListener buttons that are in TabLayout):

 public class FragmentFirst extends android.support.v4.app.Fragment { private SharedPreferences prefs; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setRetainInstance(true); } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View view = inflater.inflate(R.layout.fragment_a, container, false); //Viewpager для каждой вкладки ViewPager viewPager = (ViewPager) view.findViewById(R.id.viewpager); setupViewPager(viewPager); // Назначение вкладок в TabLayout TabLayout tabs = (TabLayout) view.findViewById(R.id.result_tabs); tabs.setupWithViewPager(viewPager); tabs.getTabAt(0).setIcon(R.drawable.ic_action_name); ImageButton button = (ImageButton) view.findViewById(R.id.imageButton2); return view; } // Добавление фрагментов в TabLayout private void setupViewPager(ViewPager viewPager) { prefs = getActivity().getSharedPreferences("genres", MODE_PRIVATE); Resources resources = getResources(); Adapter adapter = new Adapter(getChildFragmentManager()); adapter.addFragment(new Fragment(), ""); adapter.addFragment(new FragmentA(), resources.getString(R.string.tabA)); adapter.addFragment(new FragmentB(), resources.getString(R.string.tabB)); adapter.addFragment(new FragmentC(), resources.getString(R.string.tabC)); viewPager.setAdapter(adapter); viewPager.setOffscreenPageLimit(9); viewPager.setCurrentItem(0); } static class Adapter extends FragmentPagerAdapter { private final List<android.support.v4.app.Fragment> mFragmentList = new ArrayList<>(); private final List<String> mFragmentTitleList = new ArrayList<>(); public Adapter(android.support.v4.app.FragmentManager manager) { super(manager); } @Override public android.support.v4.app.Fragment getItem(int position) { return mFragmentList.get(position); } @Override public int getCount() { return mFragmentList.size(); } public void addFragment(android.support.v4.app.Fragment fragment, String title) { mFragmentList.add(fragment); mFragmentTitleList.add(title); } @Override public CharSequence getPageTitle(int position) { return mFragmentTitleList.get(position); } } 

The problem is that the viewpager initially does not respond. To "activate" the viewpager, you need to click on it once, or snap up the CoordinatorLayout .

How to prevent it?