如果在所有4个选项卡中加载相同的片段，如何在选项卡上重新加载片段

Question

我有4个选项卡，其中相同的片段正在加载不同的数据。但现在我的问题是，当我更改选项卡或转到另一个选项卡时重新加载/刷新片段/页面。我在viewpager中使用了SlidingTabLayout。

请帮我解决这个问题。任何帮助将不胜感激。

我的适配器类如下：

public class HomePageAdapter extends FragmentStatePagerAdapter {

    CharSequence Titles[]; // This will Store the Titles of the Tabs which are Going to be passed when ViewPagerAdapter is created
    int NumbOfTabs; // Store the number of tabs, this will also be passed when the ViewPagerAdapter is created
    Context context;

    private ArrayList<HomeFragment> tabs;
    String[] types = {"latest", "nearby", "popular", "loved"};
    HomeTab ht=null;
    private Map.Entry<HomeTab,HomePageAdapter> ref;
    FragmentManager fragmentManager;
    private ArrayList<Fragment> oPooledFragments;

    public HomePageAdapter(Context context, FragmentManager fm, CharSequence mTitles[], int NumbOfTabsumb,HomeTab ht) {
        super(fm);
        this.ht=ht;
        this.Titles = mTitles;
        this.context = context;
        this.NumbOfTabs = NumbOfTabsumb;
        this.fragmentManager = fm;
        ref = new MapEntry<>();
        ref.setValue(this);
        ref = new AbstractMap.SimpleEntry<>(ht, this);

        this.tabs = new ArrayList();
        for(int i=0;i<this.NumbOfTabs;i++)
        {
            this.tabs.add(new HomeFragment(this.types[i], ref));
        }
    }

    @Override
    public Fragment getItem(int position) {

        try {
            GlobalClass.closeKeyBoard(context);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return this.tabs.get(position);
    }

    @Override
    public int getCount() {
        return NumbOfTabs;
    }

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

我的片段也在这里给出：

public class HomeTab extends Fragment {

    HomePageAdapter adapter;
    ViewPager pager;
    private Toolbar toolBar;
    CharSequence Titles[] = {"LATEST", "NEARBY", "POPULAR", "LOVED"};
    int Numboftabs = 4;
    SlidingTabLayout tabs;
    Context context;
    int selectedTab;
    private RecyclerView mRecyclerView;
    private int pos;
    private HomeFragment hm = new HomeFragment();

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

        View rootView = inflater.inflate(R.layout.home_tab, container, false);
        context = container.getContext();

        adapter = new HomePageAdapter(getActivity(), getChildFragmentManager(), Titles, Numboftabs,this);

        pager = (ViewPager) rootView.findViewById(R.id.pager);
        pager.setAdapter(adapter);

        //Assigning the sliding layout tab View

        tabs = (SlidingTabLayout) rootView.findViewById(R.id.tabs);
        tabs.setDistributeEvenly(true); //This makes the tab width evenly in the given space.

        tabs.setViewPager(pager);
        toolBar = (Toolbar) (getActivity()).findViewById(R.id.tool_bar);

        tabs.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
            @Override
            public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
                try {
                    Fragment f = (HomeFragment)adapter.getItem(position);
                    if (f != null) {
                        View fragmentView = f.getView();
                        //mine one is RecyclerView
                        mRecyclerView = (RecyclerView) fragmentView.findViewById(R.id.my_recycler_view);
                        Log.v("recyclerView",mRecyclerView+"");
//                            if (mRecyclerView != null)
//                                mRecyclerView.smoothScrollToPosition(0);
                    }
                } catch (NullPointerException npe) {
                    Log.v("exception",npe+"");
                }
            }

            @Override
            public void onPageSelected(int position)
            {
                try {
                    if (getActivity() instanceof DrawerContainer) {
                        filterList = (HomeFragment) adapter.getItem(position);
                        GlobalClass.setUpdatePosts((HomeFragment) adapter.getItem(position));
                        if (GlobalClass.pusherClass != null) {
                            GlobalClass.pusherClass.setUpadteUiOfActivity((HomeFragment) adapter.getItem(position));
                        }

                        Fragment f = (HomeFragment) adapter.getItem(position);
                        if (f != null) {
                            View fragmentView = f.getView();
                            //mine one is RecyclerView
                            mRecyclerView = (RecyclerView) fragmentView.findViewById(R.id.my_recycler_view);
                            onResume();
//                            if (mRecyclerView != null)
//                                mRecyclerView.smoothScrollToPosition(0);
                        }

                    }
                     adapter.notifyDataSetChanged();
                }
                catch(NullPointerException npe){
                }
            }

        @Override
            public void onPageScrollStateChanged(int state) {

            }
        });

        if(getActivity() instanceof DrawerContainer && adapter != null && adapter.getCount() > 0)
        {
            filterList = (HomeFragment)adapter.getItem(0);
            GlobalClass.setUpdatePosts((HomeFragment)adapter.getItem(0));
            if (GlobalClass.pusherClass != null) {
                GlobalClass.pusherClass.setUpadteUiOfActivity((HomeFragment)adapter.getItem(0));
            }
        }

        (toolBar.findViewById(R.id.ic_icon)).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                mRecyclerView.smoothScrollToPosition(0);
            }
        });

        tabs.setCustomTabColorizer(new SlidingTabLayout.TabColorizer() {
            @Override
            public int getIndicatorColor(int position) {
                return getResources().getColor(android.R.color.white);
            }
        });

        return rootView;
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
        GlobalClass.fromScreen = "";
    }

    @Override
    public void setUserVisibleHint(boolean visible) {
        super.setUserVisibleHint(visible);
        if (visible && isResumed()) {
            onResume();
        }
    }

    @Override
    public void onResume() {
        super.onResume();
        if (!getUserVisibleHint()) {
            return;
        }
    }

}