图片中的示例：

>清空PagerView

>具有新内容的PagerView(SlidingTabLayout不更新)

>新的视图实例(SlidingTabLayout已更新);

这是我的代码：

public class CharSortFragment extends Fragment {

private final String TAG = "CharSortFragment";

private ViewPager viewPager;

private TabsPagerAdapter tabsAdapter;

private SlidingTabLayout slidingTabLayout;

private FragmentActivity activity;

public CharSortFragment() {}

@Override

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

Log.d(TAG,"OnCreate view...");

final View view = inflater.inflate(R.layout.char_sort_fragment,container,false);

activity = getActivity();

Log.d(TAG,"Init add button...");

FloatingActionButton addButton = (FloatingActionButton) view.findViewById(R.id.add_button);

addButton.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

Log.d(TAG,"Add button was clicked...");

startActivityForResult(new Intent(getActivity(),EditActivity.class),1);

}

});

viewPager = (ViewPager) view.findViewById(R.id.pager);

tabsAdapter = new TabsPagerAdapter(activity.getSupportFragmentManager());

viewPager.setAdapter(tabsAdapter);

Log.d(TAG,"Connecting PagerSlidingTabStrip...");

slidingTabLayout = (SlidingTabLayout) view.findViewById(R.id.tabs);

slidingTabLayout.setViewPager(viewPager);

Log.d(TAG,"OnCreate finished!");

return view;

}

@Override

public void onActivityResult(int requestCode,int resultCode,Intent data) {

Log.d(TAG,"On activity result: " + resultCode);

if(resultCode == 1) {

Log.d(TAG,"Notify data changes...");

tabsAdapter.updateCharSet();

tabsAdapter.notifyDataSetChanged();

slidingTabLayout.invalidate();

CardListFragment cardListFragment = tabsAdapter.currentFragment;

/* Обновляем TabsAdapter всегда,ибо я ленивая жопа

if(tabsAdapter.currentFragment == null) {

tabsAdapter.updateCharSet();

tabsAdapter.notifyDataSetChanged();

cardListFragment = tabsAdapter.currentFragment;

}

*/

RecyclerViewAdapter recyclerViewAdapter = cardListFragment.getAdapter();

recyclerViewAdapter.updateDataSet();

recyclerViewAdapter.notifyDataSetChanged();

Log.d(TAG,"Views was notified!");

}

}

public class TabsPagerAdapter extends FragmentPagerAdapter {

private final String TAG = "TabsPagerAdapter";

private final HashSet data = TongueTwistersStorageManager.getInstance().getData();

private final ArrayList characters = new ArrayList<>();

private CardListFragment currentFragment;

public TabsPagerAdapter(FragmentManager fm) {

super(fm);

Log.i(TAG,"Creating TabsPagerAdapter...");

updateCharSet();

}

@Override

public Fragment getItem(int position) {

char charAtCurrentPos = characters.get(position);

return CardListFragment.newInstance(charAtCurrentPos);

}

protected void updateCharSet() {

this.characters.clear();

this.characters.addAll(generateCharList());

}

private ArrayList generateCharList() {

Log.i(TAG,"Generating char list...");

Log.i(TAG,"Total tongue twisters: " + data.size());

HashSet hashCharacters = new HashSet<>();

for (TongueTwister tongueTwister : data) {

for(char character : tongueTwister.getCharacters()) {

if(!hashCharacters.contains(character)) {

Log.i(TAG,"Char: " + character);

hashCharacters.add(character);

}

}

}

Log.i(TAG,"Sorting...");

ArrayList characters = new ArrayList<>(hashCharacters);

Collections.sort(characters);

Log.i(TAG,"Char list was generated!");

return characters;

}

@Override

public int getCount() {

return characters.size();

}

@Override

public CharSequence getPageTitle(int position) {

return String.valueOf(characters.get(position));

}

@Override

public void setPrimaryItem(ViewGroup container,int position,Object object) {

currentFragment = (CardListFragment) object;

}

}

}

我该如何刷新SlidingTabLayout？ (slidingTabLayout.invalidate()对我不起作用)