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How to handle configuration change for fragment with view model

I want to make my fragment wont re-load the data when configuration change with view model.
So, i try to make an App about gitHub User.
My Main Activity contain Search view to search user and show the result with recyclerview.
My Detail Activity is showing the detail of user when one of user in the list clicked, and in my detail activity i use Tab Layout and view pager to show user's followers and following.
My ViewModel for activity works well and can keep my data when orientation change.
But when i do the same to my fragment, my fragment keep re-loading new data when orientation change.
Here my fragment
i use View Model to request data
public class FollowingFragment extends Fragment {
public static final String KEY_FOLLOWING = "key_following";
private RecyclerView recyclerView;
private FollowingViewModel followingViewModel;
private FollowingAdapter followingAdapter;
ShimmerFrameLayout shimmerFrameLayout;
LinearLayoutManager layoutManager = new LinearLayoutManager(getContext(), LinearLayoutManager.VERTICAL, false);
ArrayList<FollowingResponse> followingResponse = new ArrayList<>();
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
return inflater.inflate(R.layout.fragment_following, container, false);
}
#Override
public void onViewCreated(#NonNull View view, #Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
recyclerView = view.findViewById(R.id.rv_following);
shimmerFrameLayout = view.findViewById(R.id.shimmer_frame_layout2);
followingViewModel = ViewModelProviders.of(this).get(FollowingViewModel.class);
followingAdapter = new FollowingAdapter();
followingAdapter.setOnItemClickCallback(new FollowingAdapter.OnItemClickCallback() {
#Override
public void onItemClicked(FollowingResponse followingResponse) {
showSelectedItem(followingResponse);
}
});
//this is what i've tried and worked, but my fragment result with double or triple the data.
if (savedInstanceState == null){
}
else {
followingResponse = savedInstanceState.getParcelableArrayList(KEY_FOLLOWING);
}
showRecyclerView();
getData();
}
private void getData() {
followingViewModel.setDataFollowing(DetailUserActivity.clickedUser);
followingViewModel.getDataFollowing().observe(getViewLifecycleOwner(), new Observer<ArrayList<FollowingResponse>>() {
#Override
public void onChanged(ArrayList<FollowingResponse> followingResponses) {
shimmerFrameLayout.setVisibility(View.GONE);
shimmerFrameLayout.stopShimmer();
followingAdapter.setData(followingResponse);
followingResponse.addAll(followingResponses);
recyclerView.setAdapter(followingAdapter);
followingAdapter.notifyDataSetChanged();
}
});
}
private void showRecyclerView() {
recyclerView.setHasFixedSize(true);
recyclerView.setLayoutManager(layoutManager);
}
#Override
public void onResume() {
super.onResume();
followingViewModel.setDataFollowing(DetailUserActivity.clickedUser);
}
private void showSelectedItem(FollowingResponse item) {
Intent intent = new Intent(getContext(), DetailUserActivity.class);
intent.putExtra("EXTRA_DATA", item.getLogin());
startActivity(intent);
}
#Override
public void onAttach(#NonNull Context context) {
super.onAttach(context);
}
#Override
public void onSaveInstanceState(#NonNull Bundle outState) {
outState.putParcelableArrayList(KEY_FOLLOWING, followingResponse);
super.onSaveInstanceState(outState);
}
}
Detail Activity
public class DetailUserActivity extends AppCompatActivity {
private TextView tvName, tvNickname, tvLocation, tvCompany, tvEmail, tvWebsite;
private TextView tvCountFollowers, tvCountRepository, tvCountFollowing;
private ImageView imgProfile;
ProgressBar progressBar;
public static String clickedUser;
UserViewModel userViewModel;
private ViewPager viewPager;
TabLayout tabLayout;
private final String EXTRA_DATA = "EXTRA_DATA";
private static final String EXTRA_FOLLOW = "extra_follow";
// Fragment followingFragment;
// FragmentTransaction transaction;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.detail_user_activity);
// i've tried this, but when the orientation change, my detail activity force close and throw me to my main activity.
// if (savedInstanceState != null){
// followingFragment = getSupportFragmentManager().getFragment(savedInstanceState, KEY_FOLLOWING);
// } else {
// followingFragment = new FollowingFragment();
//
// getSupportFragmentManager().beginTransaction().replace(R.id.tv_view_pager, followingFragment).commit();
// }
tvName = findViewById(R.id.tv_item_name);
tvNickname = findViewById(R.id.tv_item_nickname);
tvLocation = findViewById(R.id.tv_item_location);
tvCompany = findViewById(R.id.tv_item_company);
tvEmail = findViewById(R.id.tv_item_email);
tvWebsite = findViewById(R.id.tv_item_website);
imgProfile = findViewById(R.id.img_item_photo);
tvCountFollowers = findViewById(R.id.tv_count_follower);
tvCountRepository = findViewById(R.id.tv_count_repo);
tvCountFollowing = findViewById(R.id.tv_count_following);
progressBar = findViewById(R.id.progressbar2);
setForUserData();
setForTabLayout();
}
private void setForUserData(){
Intent detailIntent = getIntent();
clickedUser = detailIntent.getStringExtra("EXTRA_DATA");
userViewModel = new ViewModelProvider(this, new ViewModelProvider.NewInstanceFactory()).get(UserViewModel.class);
userViewModel.setUserUVM(clickedUser);
userViewModel.getUserUVM().observe(this, new Observer<UserResponse>() {
#Override
public void onChanged(UserResponse userResponse) {
progressBar.setVisibility(View.GONE);
Glide.with(getApplicationContext())
.load(userResponse.getAvatarUrl())
.into(imgProfile);
tvName.setText(userResponse.getLogin());
tvLocation.setText(userResponse.getLocation());
tvNickname.setText(userResponse.getName());
tvCompany.setText(userResponse.getCompany());
tvEmail.setText(userResponse.getEmail());
tvWebsite.setText(userResponse.getBlog());
tvCountRepository.setText(String.valueOf(userResponse.getPublicRepos()));
tvCountFollowers.setText(String.valueOf(userResponse.getFollowers()));
tvCountFollowing.setText(String.valueOf(userResponse.getFollowing()));
}
});
}
private void setForTabLayout(){
tabLayout = findViewById(R.id.tv_tab_layout);
viewPager = findViewById(R.id.tv_view_pager);
viewPager.setAdapter(new ViewPagerAdapter(getSupportFragmentManager(), tabLayout.getTabCount()));
viewPager.addOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(tabLayout));
tabLayout.setTabMode(TabLayout.MODE_FIXED);
tabLayout.setOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
#Override
public void onTabSelected(TabLayout.Tab tab) {
viewPager.setCurrentItem(tab.getPosition());
}
#Override
public void onTabUnselected(TabLayout.Tab tab) {
}
#Override
public void onTabReselected(TabLayout.Tab tab) {
}
});
}
public class ViewPagerAdapter extends FragmentStatePagerAdapter {
int totalTab;
#SuppressWarnings("deprecation")
ViewPagerAdapter(FragmentManager fragmentManager, int totalTabs) {
super(fragmentManager);
this.totalTab = totalTabs;
}
#SuppressWarnings("ConstantConditions")
#NonNull
#Override
public Fragment getItem(int position) {
switch (position){
case 0:
return new FollowersFragment();
case 1:
return new FollowingFragment();
default:
return null;
}
}
#Override
public int getCount() {
return totalTab;
}
}
// #Override
// protected void onSaveInstanceState(#NonNull Bundle outState) {
// getSupportFragmentManager().putFragment(outState, KEY_FOLLOWING, followingFragment );
// super.onSaveInstanceState(outState);
// }
}
im trying to solve my FollowingFragment first, then ill do the same on my FollowerFragment.
im really new in programming, and have no one to ask.. can someone help me to solve my problem with keep data in fragment when orientation change?

followingViewModel = ViewModelProviders.of(this).get(FollowingViewModel.class);
In Fragment insted of writing this code in onViewCreated() write it inside OnCreate()
onViewCreated() will get called everytime the orientation changes so it will create new instance of view model everytime the orientation changes making viewmodel to reload the data

If you need to load data only once for the FollowingViewModel a good place to do it should be inside the constructor of the view model in this way you won't need to worry about the orientation change of the fragment.

Parse Recyclerview Data between fragments

I have a recyclerview in a fragment which displays a list of movies. i want to when user clicks item, it opens a new fragment which will be detailed page of that item.
I have tried bundles and intent putExtra but does not work, keeps coming up with null pointer error.
i have tried with Hardcoded strings as a test and works fine but trying to get item POJO data does not.
Anyone have an idea how to parse data between fragments from recyclerview onclick function?
1st Fragment which displays recyclerview data:
public class HomeFragment extends Fragment {
private static final String TAG = HomeFragment.class.getSimpleName();
private RecyclerView mRecyclerView;
private RecyclerView.LayoutManager mLayoutManager;
private MovieAdapter mAdapter;
private List<Movie> movieList;
private TextView title;
private final static String API_KEY = "670d03a721dd007862c0181bfd097e5d";
public HomeFragment() {
// Required empty public constructor
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
initData();
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_home, container, false);
// Inflate the layout for this fragment
mRecyclerView = (RecyclerView) rootView.findViewById(R.id.movies_recycler_view);
mLayoutManager = new LinearLayoutManager(getActivity());
mRecyclerView.setLayoutManager(mLayoutManager);
mRecyclerView.setAdapter(mAdapter);
mRecyclerView.addOnItemTouchListener(new RecyclerItemClickListener(getContext(), new RecyclerItemClickListener.OnItemClickListener() {
#Override
public void onItemClick(View view, int position) {
FragmentTransaction fragTrans = getFragmentManager().beginTransaction();
MovieDetail movieDetail = new MovieDetail();
//Bundle Send Data
Bundle bundle = new Bundle();
bundle.putString("title", movieList.get(position).getTitle());
movieDetail.setArguments(bundle);
fragTrans.replace(R.id.container_body, movieDetail);
fragTrans.isAddToBackStackAllowed();
fragTrans.addToBackStack(null);
fragTrans.commit();
}
}));
return rootView;
}
private void initData() {
ApiInterface api = ApiClient.getClient().create(ApiInterface.class);
Call<MovieResponse> call = api.getMostPopularMovies(API_KEY);
call.enqueue(new Callback<MovieResponse>() {
#Override
public void onResponse(Call<MovieResponse> call, Response<MovieResponse> response) {
int statusCode = response.code();
List<Movie> movies = response.body().getResults();
mRecyclerView.setAdapter(new MovieAdapter(movies, R.layout.list_item_movie, getContext()));
}
#Override
public void onFailure(Call<MovieResponse> call, Throwable t) {
Log.d(TAG, t.toString());
}
});
}
#Override
public void onAttach(Context context) {
super.onAttach(context);
}
#Override
public void onDetach() {
super.onDetach();
}
}
Detail Fragment:
public class MovieDetail extends Fragment {
private TextView titleTv;
public MovieDetail() {
// 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 view = inflater.inflate(R.layout.fragment_movie_detail, container, false);
titleTv = (TextView) view.findViewById(R.id.detailTitleTV);
Bundle bundle = getArguments();
titleTv.setText(String.valueOf(bundle.getString("title")));
return view;
}
#Override
public void onAttach(Context context) {
super.onAttach(context);
}
#Override
public void onDetach() {
super.onDetach();
}
/**
* .
*/
}
i have looked at other questions similar but they deal with hardcoded Strings not POJO data for item click. Any help appreciated

You should create a class which extends parcelable and then pass the object in the bundle, then access each field with get methods.

Passing data between fragments with value not reference

I'm trying to pass MyData(Parcelable object including ArrayList) from AFragment to BFragment.
Certainly,it works.However,the problem is that when I pass data(MyData) from AFragment to BFragment, the reference of arraylist(mList) is the same. This causes when I change value of mList in BFragment, Value of mList in AFragment changes as well.
I have no idea to resolve the problem.
I've looked at various articles about Parcelable,and finally I found out that Parcelable recreate instance only when two objects is in different task.
How can I pass data with a new instance?
I wrote codes like below.
MyData:
public class MyData implements Parcelable {
public List<String> mList = new ArrayList<>(0);
#Override
public int describeContents() {
return 0;
}
#Override
public void writeToParcel(Parcel out, int flags) {
out.writeStringList(mList);
}
public static final Parcelable.Creator<MyData> CREATOR = new Parcelable.Creator<MyData>() {
public MyData createFromParcel(Parcel in) {
return new MyData(in);
}
public MyData[] newArray(int size) {
return new MyData[size];
}
};
private MyData(Parcel in) {
in.writeStringList(mList);
}
public MyData() {
}
}
MainActivity:
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
SampleFragment sampleFragment = new SampleFragment();
replaceFragment(sampleFragment);
}
public void replaceFragment(Fragment fragment) {
FragmentManager manager = getSupportFragmentManager();
if (manager.findFragmentByTag(fragment.getClass().getCanonicalName()) != null) {
return;
}
FragmentTransaction transaction = manager.beginTransaction();
transaction.replace(R.id.container_layout, fragment, fragment.getClass().getCanonicalName());
transaction.addToBackStack(null);
transaction.commit();
}
}
AFragment:
public class SampleFragment extends Fragment implements View.OnClickListener {
MainActivity mActivity;
#Override
public void onAttach(Context context) {
super.onAttach(context);
mActivity = (MainActivity) context;
}
#Override
public void onCreate(#Nullable final Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
#Nullable
#Override
public View onCreateView(final LayoutInflater inflater, #Nullable final ViewGroup container, #Nullable final Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.sample1, container, false);
view.findViewById(R.id.button).setOnClickListener(this);
return view;
}
#Override
public void onClick(View v) {
int id = v.getId();
if (id == R.id.button) {
List<String> list = new ArrayList<>(0);
list.add("sample1");
list.add("sample2");
list.add("sample3");
HogeData data = new HogeData();
data.mList = list;
SampleFragment2 sampleFragment2 = new SampleFragment2();
Bundle bundle = new Bundle();
bundle.putParcelable(sampleFragment2.getClass().getCanonicalName(), data);
sampleFragment2.setArguments(bundle);
mActivity.replaceFragment(sampleFragment2);
}
}
}
BFragment:
public class SampleFragment2 extends Fragment {
MainActivity mActivity;
HogeData mData;
#Override
public void onAttach(Context context) {
super.onAttach(context);
mActivity = (MainActivity) context;
}
#Override
public void onCreate(#Nullable final Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Bundle bundle = getArguments();
mData = bundle.getParcelable(getClass().getCanonicalName());
}
#Nullable
#Override
public View onCreateView(final LayoutInflater inflater, #Nullable final ViewGroup container, #Nullable final Bundle savedInstanceState) {
return inflater.inflate(R.layout.sample2, container, false);
}

ChildFragmentManager java.lang.IllegalStateException: Activity has been destroyed

I have tried to add a fragment inside another fragment inside viewpager using getChildFragmentManager(). I got following error,
java.lang.IllegalStateException: Activity has been destroyed
at android.support.v4.app.FragmentManagerImpl.enqueueAction(FragmentManager.java:1549)
at android.support.v4.app.BackStackRecord.commitInternal(BackStackRecord.java:654)
at android.support.v4.app.BackStackRecord.commitAllowingStateLoss(BackStackRecord.java:625)
at com.lakeba.gameon.userprofile.UserProfileContainerFragment.replaceFragment(UserProfileContainerFragment.java:72)
And I tried this workaround but still getting same error.
UserProfileContainerFragment.java
public class UserProfileContainerFragment extends CustomFragment {
private View rootView;
private Fragment fragment1;
public UserProfileContainerFragment() {
// Required empty public constructor
}
#Override
public void onCreate(#Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setRetainInstance(true);
}
public static UserProfileContainerFragment newInstance() {
UserProfileContainerFragment fragment = new UserProfileContainerFragment();
return fragment;
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
rootView = inflater.inflate(R.layout.fragment_user_profile_container, container, false);
if(savedInstanceState == null) {
UserProfileFragment userProfileFragment = UserProfileFragment.newInstance();
getChildFragmentManager().beginTransaction()
.replace(R.id.user_profile_container, userProfileFragment)
.commitAllowingStateLoss();
}
return rootView;
}
/*#Override
public void onSaveInstanceState(Bundle outState) {
//super.onSaveInstanceState(outState);
}*/
public void replaceFragment(Fragment fragment, boolean addToBackStack){
fragment1 = fragment;
if(addToBackStack){
/*getChildFragmentManager().beginTransaction()
.replace(R.id.user_profile_container, fragment)
.addToBackStack(null)
.commit();*/
getChildFragmentManager().beginTransaction()
.replace(R.id.user_profile_container, fragment)
.addToBackStack(null)
.commit();
//.commitAllowingStateLoss();
}
else{
getChildFragmentManager().beginTransaction()
.replace(R.id.user_profile_container, fragment)
.commit();
//.commitAllowingStateLoss();
}
}
#Override
public void onDetach() {
super.onDetach();
try {
Field childFragmentManager = Fragment.class.getDeclaredField("mChildFragmentManager");
childFragmentManager.setAccessible(true);
childFragmentManager.set(this, null);
} catch (NoSuchFieldException e) {
throw new RuntimeException(e);
} catch (IllegalAccessException e) {
throw new RuntimeException(e);
}
}
}
HomeMapActivity.java
public class HomeMapActivity extends AppCompatActivity implements UserProfileFragment.OnUserProfileFragmentListener{
private Toolbar homeToolbar;
private ViewPager homeViewPager;
private TabLayout homeTabLayout;
private UserProfileContainerFragment userProfileContainerFragment;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_home_map);
/*homeToolbar = (Toolbar) findViewById(R.id.home_toolbar);
setSupportActionBar(homeToolbar);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);*/
homeViewPager = (ViewPager) findViewById(R.id.home_view_pager);
HomeViewPagerAdapter homeViewPagerAdapter = new HomeViewPagerAdapter(getSupportFragmentManager());
userProfileContainerFragment = new UserProfileContainerFragment();
homeViewPagerAdapter.addFragment(new UserProfileContainerFragment(),"Profile");
homeViewPager.setAdapter(homeViewPagerAdapter);
homeTabLayout = (TabLayout) findViewById(R.id.home_tabs);
homeTabLayout.setupWithViewPager(homeViewPager);
setTabIcons(homeTabLayout);
homeTabLayout.addOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
#Override
public void onTabSelected(TabLayout.Tab tab) {
int tabPosition = tab.getPosition();
tab.setIcon(tabIconsArrayActivated[tabPosition]);
}
#Override
public void onTabUnselected(TabLayout.Tab tab) {
int tabPosition = tab.getPosition();
tab.setIcon(tabIconsArray[tabPosition]);
}
#Override
public void onTabReselected(TabLayout.Tab tab) {
int tabPosition = tab.getPosition();
tab.setIcon(tabIconsArrayActivated[tabPosition]);
}
});
homeTabLayout.getTabAt(1).select();
}
private void setTabIcons(TabLayout homeTabLayout) {
homeTabLayout.getTabAt(0).setIcon(tabIconsArray[0]);
homeTabLayout.getTabAt(1).setIcon(tabIconsArray[1]);
homeTabLayout.getTabAt(2).setIcon(tabIconsArray[2]);
homeTabLayout.getTabAt(3).setIcon(tabIconsArray[3]);
}
#Override
public void onUserProfileEditButtonClicked() {
userProfileContainerFragment.replaceFragment(EditUserProfileFragment.newInstance(),true);
}
private class HomeViewPagerAdapter extends FragmentStatePagerAdapter{
private final List<Fragment> mFragmentList = new ArrayList<>();
private final List<String> mFragmentTitleList = new ArrayList<>();
public HomeViewPagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int position) {
return mFragmentList.get(position);
}
#Override
public int getCount() {
return mFragmentList.size();
}
#Override
public CharSequence getPageTitle(int position) {
//return mFragmentTitleList.get(position);
return null;
}
public void addFragment(Fragment fragment,String title){
mFragmentList.add(fragment);
mFragmentTitleList.add(title);
}
}
}

If you look at the code in your onCreate() method you'll see the lines:
userProfileContainerFragment = new UserProfileContainerFragment();
homeViewPagerAdapter.addFragment(new UserProfileContainerFragment(),"Profile");
You first initialize the userprofileContainerFragment field with a new instance of UserProfileContainerFragment and then right below you create a new instance of UserProfileContainerFragment to be used in the ViewPager(you can easily observe this by placing a log statement in the constructor of UserProfileContainerFragment...you'll see two instances being created). Later in your code you try to use the field userProfileContainerFragment which will lead to a failure as that instance of UserProfileContainerFragment is not attached to the activity at all(this isn't the fragment used by the ViewPager).
Your code should look like below, to maintain the proper reference and not create detached fragments:
userProfileContainerFragment = new UserProfileContainerFragment();
homeViewPagerAdapter.addFragment(userProfileContainerFragment,"Profile");

ViewPager with SherlockFragment always empty

Currently I have a tab host activity that contains SherlockFragment. In one of these tabs (Fragments), I want to implement a ViewPager that will show images (ImageView). I created a FragmentPagerAdapter and Fragment to add it in the ViewPager. But when I run the application, my ViewPager appears empty with no image in it.
Here are my classes:
BonusFragment.Java
public class BonusFragment extends SherlockFragment {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getImages(); //Here I get the images for the viewpager
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
if (container == null) {
return null;
}
View view = inflater.inflate(R.layout.bonus_frag, container, false);
viewPager = (ViewPager) view.findViewById(R.id.pagr);
Q.ADAPTER = new BonusPagerAdapter(getActivity()
.getSupportFragmentManager(), myImagesList);
viewPager.setAdapter(Q.ADAPTER);
return view;
}
#Override
public void onViewCreated(View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
}
#Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
}
}
BonusPagerAdapter.Java
private ArrayList<Bitmap> items;
public BonusPagerAdapter(FragmentManager fm, ArrayList<Bitmap> items) {
super(fm);
this.items = items;
}
#Override
public int getCount() {
return items.size();
}
#Override
public Fragment getItem(int position) {
Bitmap bitmap = items.get(position);
BonusImageFragment fragment = BonusImageFragment.newInstance("Glass 1");
fragment.setBitmap(bitmap);
return fragment;
}
#Override
public int getItemPosition(Object object) {
return PagerAdapter.POSITION_NONE;
}
#Override
public void notifyDataSetChanged() {
super.notifyDataSetChanged();
}
}
BonusImageFragment.Java
public class BonusImageFragment extends SherlockFragment {
private Bitmap bitmap;
public static final String EXTRA_MESSAGE = "EXTRA_MESSAGE";
private static String frag = "";
public BonusImageFragment() {
}
public static final BonusImageFragment newInstance(String message)
{
frag = message;
BonusImageFragment f = new BonusImageFragment();
Bundle bdl = new Bundle(1);
bdl.putString(EXTRA_MESSAGE, message);
f.setArguments(bdl);
return f;
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.glass_item, container, false);
ImageView image = (ImageView) v.findViewById(R.id.glass_view);
image.setImageBitmap(bitmap);
return v;
}
public Bitmap getBitmap() {
return bitmap;
}
public void setBitmap(Bitmap bitmap) {
this.bitmap = bitmap;
}
}
Now why does my ViewPager always appears empty?

Fixed it... I had to change "getActivity().getSupportFragmentManager()" in "BonusFragment.Java" with "getChildFragmentManager()"