不明白为什么我的 TabLayout 没有显示在我的 Fragment 下一些帮助。这是我的代码：
public class ViewPagerFragment extends Fragment {
public static final String KEY_NEW_INDEX = "key_new_index";
private ViewPager mViewPager;
private TabLayout mTabLayout;
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
final View view = inflater.inflate(R.layout.fragment_view_pager, container, false);
final SportFragment sportFragment = new SportFragment();
Bundle bundle = new Bundle();
sportFragment.setArguments(bundle);
final BuzzFragment buzzFragment = new BuzzFragment();
bundle = new Bundle();
buzzFragment.setArguments(bundle);
mViewPager = (ViewPager) view.findViewById(R.id.viewPager);
mTabLayout = (TabLayout) view.findViewById(R.id.tabLayout);
mViewPager.setAdapter(new FragmentPagerAdapter(getChildFragmentManager()) {
@Override
public …