content: package de.danoeh.antennapod.ui.preferences.screen.about;
  
  import android.os.Bundle;
  import android.view.LayoutInflater;
  import android.view.View;
  import android.view.ViewGroup;
  import androidx.annotation.NonNull;
  import androidx.annotation.Nullable;
  import androidx.appcompat.app.AppCompatActivity;
  import androidx.fragment.app.Fragment;
  import androidx.viewpager2.adapter.FragmentStateAdapter;
  import androidx.viewpager2.widget.ViewPager2;
  import com.google.android.material.tabs.TabLayout;
  import com.google.android.material.tabs.TabLayoutMediator;
  import com.google.android.material.transition.MaterialSharedAxis;
  import de.danoeh.antennapod.ui.preferences.R;
  
  /**
   * Displays the 'about->Contributors' pager screen.
   */
  public class ContributorsPagerFragment extends Fragment {
      private static final int POS_DEVELOPERS = 0;
      private static final int POS_TRANSLATORS = 1;
      private static final int POS_SPECIAL_THANKS = 2;
      private static final int TOTAL_COUNT = 3;
  
      @Override
      public void onCreate(@Nullable Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          setEnterTransition(new MaterialSharedAxis(MaterialSharedAxis.X, true));
          setReturnTransition(new MaterialSharedAxis(MaterialSharedAxis.X, false));
      }
  
      @Override
      public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container,
                               Bundle savedInstanceState) {
          super.onCreateView(inflater, container, savedInstanceState);
  
          View rootView = inflater.inflate(R.layout.pager_fragment, container, false);
          ViewPager2 viewPager = rootView.findViewById(R.id.viewpager);
          viewPager.setAdapter(new StatisticsPagerAdapter(this));
          // Give the TabLayout the ViewPager
          TabLayout tabLayout = rootView.findViewById(R.id.sliding_tabs);
          new TabLayoutMediator(tabLayout, viewPager, (tab, position) -> {
              switch (position) {
                  case POS_DEVELOPERS:
                      tab.setText(R.string.developers);
                      break;
                  case POS_TRANSLATORS:
                      tab.setText(R.string.translators);
                      break;
                  case POS_SPECIAL_THANKS:
                      tab.setText(R.string.special_thanks);
                      break;
                  default:
                      break;
              }
          }).attach();
  
          rootView.findViewById(R.id.toolbar).setVisibility(View.GONE);
  
          return rootView;
      }
  
      @Override
      public void onStart() {
          super.onStart();
          ((AppCompatActivity) getActivity()).getSupportActionBar().setTitle(R.string.contributors);
      }
  
      public static class StatisticsPagerAdapter extends FragmentStateAdapter {
  
          StatisticsPagerAdapter(@NonNull Fragment fragment) {
              super(fragment);
          }
  
          @NonNull
          @Override
          public Fragment createFragment(int position) {
              switch (position) {
                  case POS_TRANSLATORS:
                      return new TranslatorsFragment();
                  case POS_SPECIAL_THANKS:
                      return new SpecialThanksFragment();
                  default:
                  case POS_DEVELOPERS:
                      return new DevelopersFragment();
              }
          }
  
          @Override
          public int getItemCount() {
              return TOTAL_COUNT;
          }
      }
  }
  