In my MainActivity there is a FrameLayout (id=fragment_container) that is replaced by the Activity in onCreate with FragmentA. FragmentA just contains a single Button and calls onClick in the MainActivity in order to replace the FrameLayout with FragmentB. FragmentB contains a RecyclerView and is shown correctly. I call fragmentManager.popBackStack() to bring back FragmentA. Now FragmentA is shown on top of FragmentB (which I still can interact with).
Why is FragmentB not removed after calling popBackStack?
MainActivity
public class MainActivity extends AppCompatActivity implements View.OnClickListener {
private FragmentManager fragmentManager;
#Override
public void onBackPressed() {
fragmentManager.popBackStack();
}
#Override
public void onClick(View view) {
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
fragmentTransaction.replace(R.id.fragment_container, new FragmentB());
fragmentTransaction.addToBackStack(null);
fragmentTransaction.commit();
}
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//...
fragmentManager = getSupportFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
FragmentA fragment = FragmentA.getInstance(this); //register OnClickListener
fragmentTransaction.replace(R.id.fragment_container, fragment);
fragmentTransaction.commit();
}
//...
}
FragmentA
public class FragmentA extends Fragment {
private View.OnClickListener onClickListener;
public FragmentA() {
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_a, container, false);
FloatingActionButton fab = (FloatingActionButton) view.findViewById(R.id.fab);
fab.setOnClickListener(onClickListener);
return view;
}
public static FragmentA getInstance(View.OnClickListener onClickListener) {
FragmentA fragmentA = new FragmentA();
fragmentA.setOnClickListener(onClickListener);
return fragmentA;
}
private void setOnClickListener(View.OnClickListener onClickListener) {
this.onClickListener = onClickListener;
}
}
FragmentB
public class FragmentB extends Fragment {
//...
#Nullable
#Override
public View onCreateView(LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.FragmentB, container, true);
//manipulating Views...
//...
return view;
}
}
The problem is in the FragmentB class. You should not pass the argument attachToRoot=true.
Try this instead:
public class FragmentB extends Fragment {
//...
#Nullable
#Override
public View onCreateView(LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
//don't pass true
View view = inflater.inflate(R.layout.FragmentB, container, false);
//manipulating Views...
//...
return view;
}
}
Use popBackStackImmediate instead,
#Override
public void onBackPressed() {
fragmentManager.popBackStackImmediate();
}
From the popBackStackImmediate docs,
Like popBackStack(), but performs the operation immediately inside of the call. This is like calling executePendingTransactions() afterwards.
Related
Target: Trying to pass data from FragmentA to Activity to FragmentB using an interface.
Issue: FragmentB is not being .replaced (created) in Fragment a when clicking on bottom. (Also tried .add) The only way to go around this is to start both fragments when the Activity is created.
Path: activity -> fragmentA -> onclick replace fragment and pass data with interface -> activty -> pass data from activity to Fragment B.
Tried:
.Replace and .Add, fragmentb in activty and in fragmentA
Main Activity:
public class MainActivity extends AppCompatActivity implements Communicator {
android.support.v4.app.FragmentTransaction ft;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
AFragment savedFragment = (AFragment)
getSupportFragmentManager().findFragmentById(R.id.fl_conainter);
if (savedFragment == null) {
addFragment();
}
}
private void addFragment() {
ft = getSupportFragmentManager().beginTransaction();
AFragment aFragment = new AFragment();
ft.add(R.id.fl_conainter,aFragment,"FragA");
ft.commit();
}
//****Issue is here ****
#Override
public void respond(String value) {
addSecondFragment();
FragmentManager manager=getSupportFragmentManager();
/* BFragment fragment = (BFragment)
manager.findFragmentById(R.id.fragmentB);*/
BFragment fragment = (BFragment) manager.findFragmentByTag("Fragb");
fragment.changeData(value);
}
private void addSecondFragment() {
BFragment bFragment = new BFragment();
ft = getSupportFragmentManager().beginTransaction();
ft.replace(R.id.fl_conainter,bFragment,"Fragb");
ft.commit();
}
}
Fragment A:
public class AFragment extends Fragment implements View.OnClickListener {
Communicator communicator;
Button button;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.fragment_a, container, false);
}
#Override
public void onActivityCreated (Bundle saveInstanceState) {
super.onActivityCreated(saveInstanceState);
button = getActivity().findViewById(R.id.update_btn);
button.setOnClickListener(this);
communicator = (Communicator) getActivity();
}
#Override
public void onClick(View view) {
// AddNextfrag();
communicator.respond("passing data");
}
private void AddNextfrag (){
android.support.v4.app.FragmentTransaction ft;
ft = getActivity().getSupportFragmentManager().beginTransaction();
BFragment bFragment = new BFragment();
ft.add(R.id.fl_conainter,bFragment, "Fragb");
ft.commit();
}
}
Fragment B:
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
public class BFragment extends Fragment {
TextView text;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.fragment_b, container, false);
}
#Override
public void onActivityCreated (Bundle saveInstanceState) {
super.onActivityCreated(saveInstanceState);
text = getActivity().findViewById(R.id.result_tv);
}
public void changeData(String value){
text.setText(value);
}
}
Interface:
public interface Communicator {
void respond(String value);
}
public class AFragment extends Fragment implements
View.OnClickListener {
Communicator communicator;
Button button;
Activity activity;
#Override
public void onAttach(Activity activity)
{
super.onAttach(activity);
this.activity = activity;
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.fragment_a, container, false);
}
#Override
public void onActivityCreated (Bundle saveInstanceState) {
super.onActivityCreated(saveInstanceState);
button = getActivity().findViewById(R.id.update_btn);
button.setOnClickListener(this);
communicator = (Communicator) activity ;
}
#Override
public void onClick(View view) {
// AddNextfrag();
communicator.respond("passing data");
}
private void AddNextfrag (){
android.support.v4.app.FragmentTransaction ft;
ft = getActivity().getSupportFragmentManager().beginTransaction();
BFragment bFragment = new BFragment();
ft.add(R.id.fl_conainter,bFragment, "Fragb");
ft.commit();
}
}
I am trying to replace the current active fragment inside ViewPager when item inside fragment's recycelerview is clicked. So far, I manage to pop up the Toast on the second fragment when the item on the first fragment is clicked, but the all the view of the second fragment is blank.
Here is my code:
MainActivity.class
public class MainActivity extends AppCompatActivity {
private ViewPager viewPager;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
toolbar = findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
viewPager = findViewById(R.id.view_pager);
FragmentAdapter adapter = new FragmentAdapter(getSupportFragmentManager());
viewPager.setAdapter(adapter);
viewPager.setOffscreenPageLimit(adapter.getCount() - 1);
}
// ..........
private static class FragmentAdapter extends FragmentStatePagerAdapter {
public FragmentAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int position) {
switch (position) {
case 0:
return AllGenreFragment.newInstance();
case 1:
return DashboardFragment.newInstance();
case 2:
return NotificationFragment.newInstance();
}
return null;
}
#Override
public int getCount() {
return 3;
}
}
// ..........
}
AllGenreFragment.class
public class AllGenreFragment extends Fragment {
RecyclerView genreRV;
private AllGenreAdapter allGenreAdapter;
private List<Genre> genreList;
public static AllGenreFragment newInstance() {
return new AllGenreFragment();
}
#Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
setHasOptionsMenu(true);
}
#Nullable
#Override
public View onCreateView(#NonNull LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.fragment_genre, container, false);
genreRV = v.findViewById(R.id.rv);
genreRV.setHasFixedSize(true);
GridLayoutManager layoutManager = new GridLayoutManager(getContext(), 2);
genreRV.setLayoutManager(layoutManager);
genreList = new ArrayList<>();
allGenreAdapter = new AllGenreAdapter(genreList, getContext());
genreRV.setAdapter(allGenreAdapter);
return v;
}
}
AllGenreAdapter.class
public class AllGenreAdapter extends RecyclerView.Adapter<AllGenreAdapter.ViewHolder> {
// .......
class ViewHolder extends android.support.v7.widget.RecyclerView.ViewHolder {
public ViewHolder(final View itemView) {
super(itemView);
itemView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Toast.makeText(context, "Genre: " + genre_title.getText().toString(), Toast.LENGTH_SHORT).show();
AppCompatActivity activity = (AppCompatActivity) itemView.getContext();
FragmentManager fragmentManager = activity.getSupportFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
Fragment allAnimeFragment = new AllAnimeFragment();
Bundle bundle = new Bundle();
bundle.putString("genreid", genre_id.getText().toString().trim());
allAnimeFragment.setArguments(bundle);
fragmentTransaction.replace(R.id.view_pager, allAnimeFragment);
fragmentTransaction.addToBackStack(null);
fragmentTransaction.commit();
}
});
}
}
// .......
}
AllAnimeFragment.class
public class AllAnimeFragment extends Fragment {
RecyclerView animeRV;
private AllAnimeAdapter allAnimeAdapter;
private List<Anime> animeList;
String genreid;
public static AllAnimeFragment newInstance() {
return new AllAnimeFragment();
}
#Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
setHasOptionsMenu(true);
}
#Nullable
#Override
public View onCreateView(#NonNull LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.fragment_anime, container, false);
Bundle arguments = getArguments();
genreid = arguments.getString("genreid");
Toast.makeText(getContext(), genreid, Toast.LENGTH_SHORT).show();
// .....
return v;
}
}
Your approach is not really good, try below way:
Create a container fragment, called ContainerFragment, example, you will be using this fragment for your ViewPager.
The ContainerFragment should contain a container view, and add AllGenreFragment in the first them it is invoked.
In AllGenreFragment, create a callback, when an item in the RecyclerView be clicked, then in ContainerFragment will replace (or add) current fragment (AllGenreFragment) to AllAnimeFragment
First, create ContainerFragment,
public class ContainerFragment extends Fragment implements AllGenreFragment.OnAllGenreFragmentListener {
#Nullable #Override public View onCreateView(LayoutInflater inflater, #Nullable ViewGroup container, Bundle savedInstanceState) {
return inflater.inflate(R.layout.fragment_container, container, false);
}
#Override public void onViewCreated(View view, #Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
initialLoad();
}
private void initialLoad() {
getChildFragmentManager()
.beginTransaction()
.add(R.id.container, AllGenreFragment.newInstance())
.commit();
}
#Override public void onItemClicked() {
getChildFragmentManager()
.beginTransaction()
.replace(R.id.container, AllAnimeFragment.newInstance())
.commit();
}
}
This Fragment should implement a callback from AllGenreFragment for handling fragment transaction.
also, the xml layout
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent" />
Next step, add above fragment into ViewPager, we using ContainerFragment instead of AllGenreFragment.
#Override
public Fragment getItem(int position) {
switch (position) {
case 0:
return ContainerFragment().newInstance();
case 1:
return DashboardFragment.newInstance();
case 2:
return NotificationFragment.newInstance();
}
return null;
}
Ok, so now come back to AllGenreFragment, we should create a CallBack that we implement in ContainerFragment
public interface AllGenreFragmentListener {
onItemClicked();
}
and then,
private AllGenreFragmentListener listener;
#Override public void onAttach(Context context) {
super.onAttach(context);
if (getParentFragment() instanceof AllGenreFragmentListener) {
listener = (AllGenreFragmentListener) getParentFragment();
}
}
so we have an instance of AllGenreFragmentListener, from now, whenever listener call onItemClicked, the method onItemClicked in ContainerFragment will be invoked.
Ok, let do it,
create below variable and method in your AllGenreAdapter:
private AllGenreFragmentListener listener;
public void setListener(AllGenreFragmentListener listener) {
this.listener = listener;
}
and update your ViewHodler
itemView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Toast.makeText(context, "Genre: " + genre_title.getText().toString(), Toast.LENGTH_SHORT).show();
if (listener != null)
listener.onItemClicked()
});
}
Don't forget call setListener method in your AllGenreFragment, so please add
#Override public void onViewCreated(#NonNull View view, #Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
if (allGenreAdapter != null) allGenreAdapter.setListener(listener);
}
That all,
I type this code by hand, not in my IDE so maybe it not compile, so please fix it if you face any compile error.
Note
If you want to keep the behavior of the BACK button, override onBackPressed in your MainActivity
#Override public void onBackPressed() {
Fragment f = getCurrentFragment();
if (f != null) {
if (f.getChildFragmentManager().getBackStackEntryCount() > 1) {
f.getChildFragmentManager().popBackStack();
} else {
super.onBackPressed();
}
} else {
super.onBackPressed();
}
}
public Fragment getCurrentFragment() {
return (Fragment) viewPager.getAdapter()
.instantiateItem(viewPager, viewPager.getCurrentItem());
}
Also, add fragment into backStack whenever we add them to the container view (in your ContainerFragment)
private void initialLoad() {
getChildFragmentManager()
.beginTransaction()
.add(R.id.container, AllGenreFragment.newInstance())
.addToBackStack(null)
.commit();
}
#Override public void onItemClicked() {
// change `replace` to `add` and add more `.addToBackStack(null)`
getChildFragmentManager()
.beginTransaction()
.add(R.id.container, AllAnimeFragment.newInstance())
.addToBackStack(null)
.commit();
}
you should add a context in the constructor of your adapter
public class AllGenreAdapter(Context context) extends RecyclerView.Adapter<AllGenreAdapter.ViewHolder> {
// .......
}
then pass your activity to your adapter, use it to replace your fragment
I have two fragment inside a LinearLayout.
When I click on a FAB button I would like to hide one but a
null object reference appears on FragmentTransaction hide method.
Why doesn't "f" have a view reference?
public class FragmentOne extends Fragment {
public FragmentOne() {
// Required empty public constructor
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View returnView = inflater.inflate(R.layout.fragment_one, container, false);
FloatingActionButton fabTemp = returnView.findViewById(R.id.fabTemp);
final Fragment f = getActivity().getSupportFragmentManager().getFragments().get(0).getChildFragmentManager().getFragments().get(1);
final FragmentTransaction transaction = getActivity().getSupportFragmentManager().beginTransaction();
fabTemp.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
transaction.setCustomAnimations(android.R.animator.fade_in,
android.R.animator.fade_out);
if (f.isHidden()) {
transaction.show(f);
} else {
transaction.hide(f);
}
transaction.commit();
}
});
return returnView;
}
I solved in another way despite not being as i wanted
final View frag = getView().findViewById(R.id.frgSettemp);
frag.setVisibility(View.GONE);
In onCreateView just inflate and return the view.
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View returnView = inflater.inflate(R.layout.fragment_one, container, false);
return returnView;
}
Try the other processing in onViewCreated #override method. like this
#Override
public void onViewCreated(View v, Bundle savedInstanceState) {
super.onViewCreated(v, savedInstanceState);
FloatingActionButton fabTemp = getView().findViewById(R.id.fabTemp);
final Fragment f = getActivity().getSupportFragmentManager().getFragments().get(0);
final FragmentTransaction transaction = getActivity().getSupportFragmentManager().beginTransaction();
fabTemp.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
transaction.setCustomAnimations(android.R.animator.fade_in,
android.R.animator.fade_out);
if (f.isHidden()) {
transaction.show(f);
} else {
transaction.hide(f);
}
transaction.commit();
}
});
}
Hope this will help.
You should call only
final Fragment f = getActivity().getSupportFragmentManager().getFragments().get(0);
or
final Fragment f = getActivity().getSupportFragmentManager().getFragments().get(1);
What you have done will return null for sure.
I have problem: A Fragment is not reattached to its hosting ViewPager after returning from another fragment by using popBackStack.
One Activity hosting a Fragment whose layout holds a ViewPager. The ViewPager is populated by a FragmentStateViewPagerAdapter. The Fragment hosted inside the pager can open sub page lists, containing a new set of pages. All works fine as long as the back button is not pressed. As soon as the user closes one of the sub Page the previous Page is recreated, but without the Page that was displayed previously (Empty page with whiteblank page). I have searching but still not resolve my problem.
Full Code of TestProject can be found on Github
MainActivity:
class MainActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
val ft = supportFragmentManager.beginTransaction()
ft.add(R.id.frameLayout, HomeFragment.newInstance())
ft.commit()
}
}
HomeFragment:
public class HomeFragment extends Fragment {
#Nullable
#Override
public View onCreateView(LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.fragment_home, container, false);
TabLayout tabLayout = v.findViewById(R.id.tabLayout);
ViewPager viewPager = v.findViewById(R.id.viewPager);
VPAdapter adapter = new VPAdapter(getFragmentManager());
viewPager.setAdapter(adapter);
tabLayout.setupWithViewPager(viewPager);
return v;
}
public static Fragment newInstance() {
return new HomeFragment();
}
}
VPAdapter:
public class VPAdapter extends FragmentStatePagerAdapter{
public VPAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int position) {
return TabFragment.newInstance(position);
}
#Override
public CharSequence getPageTitle(int position) {
return "TAB " + position;
}
#Override
public int getCount() {
return 2;
}
}
TabFragment:
public class TabFragment extends Fragment {
#Override
public void onCreate(#Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Log.e("TAB", "onCreate");
}
#Nullable
#Override
public View onCreateView(LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
Log.e("TAB", "onCreateView");
return inflater.inflate(R.layout.fragment_tab, container, false);
}
#Override
public void onViewCreated(View view, #Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
Bundle args = getArguments();
if (args != null) {
int tabIndex = args.getInt("tab_index", 0);
TextView tv = view.findViewById(R.id.textView);
tv.setText(String.format(Locale.getDefault(), "TAB FRAGMENT INDEX %d", tabIndex));
}
Button button = view.findViewById(R.id.button);
button.setText("Open Next Fragment");
button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
FragmentTransaction fragmentTransaction = getFragmentManager().beginTransaction();
fragmentTransaction.replace(R.id.frameLayout, LastFragment.newInstance());
fragmentTransaction.addToBackStack(null);
fragmentTransaction.commit();
}
});
}
#Override
public void onDestroy() {
super.onDestroy();
Log.e("TAB", "onDestroy");
}
public static Fragment newInstance(int index) {
Bundle args = new Bundle();
args.putInt("tab_index", index);
TabFragment tab = new TabFragment();
tab.setArguments(args);
return tab;
}
}
LastFragment:
public class LastFragment extends Fragment {
#Nullable
#Override
public View onCreateView(LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
return inflater.inflate(R.layout.fragment_last, container, false);
}
#Override
public void onViewCreated(View view, #Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
view.findViewById(R.id.button).setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
getFragmentManager().popBackStack();
}
});
}
public static Fragment newInstance() {
return new LastFragment();
}
}
You have to Use getChildFragmentManager() For Viewpager to adapt Popback Feature.
VPAdapter adapter = new VPAdapter(getChildFragmentManager());
You Can Refer this Documentation on ChildFragmentManager()
When I am trying to load a new fragment it loads previous fragment.
I have a fragment profile fragment and on it some onclicks are there. I want to open a new fragment on the click event but it is opening the previous fragment, somewhere backstack is missing or something else i could not find out.
relativeLayoutManagement.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
FragmentTransaction transaction;
if(getParentFragment() == null){
transaction = childFragmentManager.beginTransaction();
}else {
transaction = childFragmentManagerOfParent.beginTransaction();
transaction.replace(R.id.frameLayoutChildContainer, HotelManagementFragment.newInstance(),FragmentTags.HOTEL_MANAGEMENT);
transaction.addToBackStack(FragmentTags.HOTEL_MANAGEMENT);
transaction.commit();
}
}
});
}
This is my new fragment code.
public class HotelManagementFragment extends BaseFragment {
public HotelManagementFragment() {
}
public static HotelManagementFragment newInstance() {
HotelManagementFragment fragment = new HotelManagementFragment();
return fragment;
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
#Nullable
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_hotel_managment, container, false);
return view;
}
#Override
public void onViewCreated(View view, #Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
}
#Override
public void onDestroyView() {
super.onDestroyView();
}
}
If you are trying to load fragment on another fragment then Use that id which is in your main activity layout like this. //transaction.replace(R.id.main_activity_fragment_id,your_fragment);