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package de.danoeh.antennapod.fragment;
import android.content.Context;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import androidx.annotation.NonNull;
import androidx.appcompat.widget.Toolbar;
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 de.danoeh.antennapod.R;
import de.danoeh.antennapod.activity.MainActivity;
public class EpisodesFragment extends PagedToolbarFragment {
public static final String TAG = "EpisodesFragment";
private static final String PREF_LAST_TAB_POSITION = "tab_position";
private static final String KEY_UP_ARROW = "up_arrow";
private static final int POS_NEW_EPISODES = 0;
private static final int POS_ALL_EPISODES = 1;
private static final int POS_FAV_EPISODES = 2;
private static final int TOTAL_COUNT = 3;
private TabLayout tabLayout;
private boolean displayUpArrow;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setRetainInstance(true);
}
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);
Toolbar toolbar = rootView.findViewById(R.id.toolbar);
toolbar.setTitle(R.string.episodes_label);
toolbar.inflateMenu(R.menu.episodes);
displayUpArrow = getParentFragmentManager().getBackStackEntryCount() != 0;
if (savedInstanceState != null) {
displayUpArrow = savedInstanceState.getBoolean(KEY_UP_ARROW);
}
((MainActivity) getActivity()).setupToolbarToggle(toolbar, displayUpArrow);
ViewPager2 viewPager = rootView.findViewById(R.id.viewpager);
viewPager.setAdapter(new EpisodesPagerAdapter(this));
viewPager.setOffscreenPageLimit(2);
super.setupPagedToolbar(toolbar, viewPager);
// Give the TabLayout the ViewPager
tabLayout = rootView.findViewById(R.id.sliding_tabs);
new TabLayoutMediator(tabLayout, viewPager, (tab, position) -> {
switch (position) {
case POS_NEW_EPISODES:
tab.setText(R.string.new_episodes_label);
break;
case POS_ALL_EPISODES:
tab.setText(R.string.all_episodes_short_label);
break;
case POS_FAV_EPISODES:
tab.setText(R.string.favorite_episodes_label);
break;
default:
break;
}
}).attach();
// restore our last position
SharedPreferences prefs = getActivity().getSharedPreferences(TAG, Context.MODE_PRIVATE);
int lastPosition = prefs.getInt(PREF_LAST_TAB_POSITION, 0);
viewPager.setCurrentItem(lastPosition, false);
return rootView;
}
@Override
public void onPause() {
super.onPause();
// save our tab selection
SharedPreferences prefs = getActivity().getSharedPreferences(TAG, Context.MODE_PRIVATE);
SharedPreferences.Editor editor = prefs.edit();
editor.putInt(PREF_LAST_TAB_POSITION, tabLayout.getSelectedTabPosition());
editor.apply();
}
@Override
public void onSaveInstanceState(@NonNull Bundle outState) {
outState.putBoolean(KEY_UP_ARROW, displayUpArrow);
super.onSaveInstanceState(outState);
}
static class EpisodesPagerAdapter extends FragmentStateAdapter {
EpisodesPagerAdapter(@NonNull Fragment fragment) {
super(fragment);
}
@NonNull
@Override
public Fragment createFragment(int position) {
switch (position) {
case POS_NEW_EPISODES:
return new NewEpisodesFragment();
case POS_ALL_EPISODES:
return new AllEpisodesFragment();
default:
case POS_FAV_EPISODES:
return new FavoriteEpisodesFragment();
}
}
@Override
public int getItemCount() {
return TOTAL_COUNT;
}
}
}
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