TabLayoutでViewPagerがフラグメント内で動作しないAndroid

Question

こんにちは私はフラグメント内にTabLayoutとViewPagerを持っています。しかし、私は子供の断片に来るためにタブ間をスライドすることはできません（アクティビティでは正常に動作しますが、フラグメントでは動作しません）。ここで

がフラグメント内部Tablayoutための私のコードです：

@Override 
    public View onCreateView(LayoutInflater inflater, ViewGroup container, 
          Bundle savedInstanceState) { 

     View inflateView = inflater.inflate(R.layout.fragment_assign_beacon_to_event, container, false); 

     //Viewpager and TabLayout 
     viewPager = (ViewPager)inflateView.findViewById(R.id.viewPager); 
     viewPager.setAdapter(new CustomAdapter(getFragmentManager(), getContext())); 

     tabLayout = (TabLayout)inflateView.findViewById(R.id.tabLayout); 


     // Inflate the layout for this fragment 
     return inflateView; 
    } 

@Override 
    public void onActivityCreated(Bundle savedInstanceState) { 
     super.onActivityCreated(savedInstanceState); 

    tabLayout.post(new Runnable() { 
       @Override 
       public void run() { 
        tabLayout.setupWithViewPager(viewPager); 

      } 
     }); 

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

      @Override 
      public void onTabUnselected(TabLayout.Tab tab) { 
       viewPager.setCurrentItem(tab.getPosition()); 
      } 

      @Override 
      public void onTabReselected(TabLayout.Tab tab) { 
       viewPager.setCurrentItem(tab.getPosition()); 
      } 
     }); 

Any here is my Custom Adapter class 

private class CustomAdapter extends FragmentPagerAdapter { 

     private String fragments[] = {"Assign Event", "Manage Event"}; 

     public CustomAdapter(FragmentManager supportFragmentManager, Context applicationContext) { 
      super(supportFragmentManager); 
     } 

     @Override 
     public Fragment getItem(int position) { 
      switch (position) { 
       case 0: 
//     return new AssignEventToBeacon(); 
        return new Test1(); 
       case 1: 
        return new ManageEventAssigned(); 
       default: 
        return null; 
      } 
     } 

     @Override 
     public int getCount() { 
      return fragments.length; 
     } 

     @Override 
     public CharSequence getPageTitle(int position) { 
      return fragments[position]; 
     } 

    } 

私は私がこの回線に問題があります疑う：

viewPager.setAdapter(new CustomAdapter(getFragmentManager(), getContext())); 

Anyhelpは感謝

Answer 1

は、私が行っている、非常に感謝しています同様のプロジェクトです。フラグメントのコードは次のとおりです。

@Override 
    public View onCreateView(LayoutInflater inflater, ViewGroup container, 
          Bundle savedInstanceState) { 
     // Inflate the layout for this fragment 
     View view = inflater.inflate(R.layout.outer_fragment, container, false); 
     setHasOptionsMenu(true); 

     ViewPager viewPager = (ViewPager) view.findViewById(R.id.viewpager); 
     if (viewPager != null) { 
      setupViewPager(viewPager); 
     } 

     Log.v("Layout","Tabs"); 
     TabLayout tabLayout = (TabLayout) view.findViewById(R.id.tabs); 
     tabLayout.setSelectedTabIndicatorColor(Color.parseColor("#FFFFFF")); 
     tabLayout.setTabTextColors(Color.parseColor("#707070"), Color.parseColor("#FFFFFF")); 
     assert viewPager != null; 
     tabLayout.setupWithViewPager(viewPager); 

     return view; 
    } 

private void setupViewPager(ViewPager viewPager) { 
     Adapter adapter = new Adapter(getChildFragmentManager()); 
     adapter.addFragment(new Tab1Fragment(), "PHOTOS"); 
     adapter.addFragment(new Tab2Fragment(), "HI-FIVES"); 
     viewPager.setAdapter(adapter); 
    } 


static class Adapter extends FragmentPagerAdapter { 
     private final List<Fragment> mFragments = new ArrayList<>(); 
     private final List<String> mFragmentTitles = new ArrayList<>(); 

     public Adapter(FragmentManager fm) { 
      super(fm); 
     } 

     public void addFragment(Fragment fragment, String title) { 
      mFragments.add(fragment); 
      mFragmentTitles.add(title); 
     } 

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

     @Override 
     public int getCount() { 
      return mFragments.size(); 
     } 

     @Override 
     public CharSequence getPageTitle(int position) { 
      return mFragmentTitles.get(position); 
     } 
    }