Hi I have a Swipe Tab Fragment Activity that contains Three Fragments. I created my own adapter that extends FragmentStatePageAdapter.
Now here I'll explain how each tab (Fragments) works.
In Tab 1 and Tab 2, I have a list with practically the same type, when I mean type, I mean they are Symptoms (fever, pain in the eyes, etc.).
Now Tab 3 serves as a tray. Whenever I select an item from the listview in either Tab 1 or Tab 2, I want to transfer that item to Tab 3 and remove that Item from the List where it was selected.
I have tried implementing an Interface but it didn't work for me since I added the fragments on the Main FragmentActivity through an Adapter. MY questions is
How can I communicate the three Fragments? Meaning how can I pass data between these fragment.
Now if you want to take a look at what I've done for now, here it is:
I depicted this as Tab 2 in my question
public class FragmentGeneralSymptoms extends ListFragment implements OnItemClickListener {
ArrayList<String> symptomList;
String name;
String selected;
Tray tray;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// TODO Auto-generated method stub
return inflater.inflate(R.layout.fragment_generalsymptoms, container,
false);
}
#Override
public void onActivityCreated(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onActivityCreated(savedInstanceState);
Bundle args = getArguments();
name = args.getString("key");
tray = (Tray) getActivity();
new LoadSymptoms().execute();
}
class LoadSymptoms extends AsyncTask<String, String, String> {
#Override
protected String doInBackground(String... params) {
// TODO Auto-generated method stub
KnowledgeBaseHelper helper = new KnowledgeBaseHelper(getActivity());
ProfileHandler handler = new ProfileHandler(getActivity());
Profiles profile = handler.getProfile(name);
String age = profile.getAge() + "";
String gender = profile.getGender();
symptomList = helper.getSymptomList(name, age, gender);
return null;
}
#Override
protected void onPostExecute(String result) {
// TODO Auto-generated method stub
super.onPostExecute(result);
setListAdapter(new ArrayAdapter<String>(getActivity(),
R.layout.general_list, symptomList));
}
}
#Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
// TODO Auto-generated method stub
selected = symptomList.get(arg2);
tray.respond(selected);
}
}
My Tab 3
public class FragmentTray extends ListFragment{
private ArrayList<String> selectedList;
public FragmentTray(){}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// TODO Auto-generated method stub
return inflater.inflate(R.layout.fragment_tray, container, false);
}
public void addToTray(String symptom){
selectedList.add(symptom);
setListAdapter(new ArrayAdapter<String>(getActivity(),
R.layout.general_list, selectedList));
}
public void removeSymptom(String string){
selectedList.remove(selectedList.indexOf(string));
}
}
My MainActivity which Extends FragmentActivity
public class MainActivity extends FragmentActivity implements TabListener, OnPageChangeListener, Tray {
private String selectedProfileName;
ActionBar actionBar;
ViewPager viewPager;
#Override
protected void onCreate(Bundle arg0) {
// TODO Auto-generated method stub
super.onCreate(arg0);
setContentView(R.layout.main_activity);
Bundle args = getIntent().getExtras();
selectedProfileName = args.getString("key_name");
viewPager = (ViewPager) findViewById(R.id.main_pager);
viewPager.setAdapter(new MyAdapter(getSupportFragmentManager()));
viewPager.setOnPageChangeListener(this);
InitializeActionBar();
}
public void InitializeActionBar() {
actionBar = getActionBar();
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
ActionBar.Tab tabBodyPart = actionBar.newTab();
tabBodyPart.setText("Body Parts");
tabBodyPart.setTabListener(MainActivity.this);
ActionBar.Tab tabGeneralSymptoms = actionBar.newTab();
tabGeneralSymptoms.setText("General Symptoms");
tabGeneralSymptoms.setTabListener(MainActivity.this);
ActionBar.Tab tabSelectedSymptoms = actionBar.newTab();
tabSelectedSymptoms.setText("Selected Symptoms");
tabSelectedSymptoms.setTabListener(MainActivity.this);
actionBar.addTab(tabBodyPart);
actionBar.addTab(tabGeneralSymptoms);
actionBar.addTab(tabSelectedSymptoms);
}
#Override
public void onTabSelected(Tab tab, FragmentTransaction ft) {
// TODO Auto-generated method stub
viewPager.setCurrentItem(tab.getPosition());
}
class MyAdapter extends FragmentStatePagerAdapter {
public MyAdapter(FragmentManager fm) {
super(fm);
// TODO Auto-generated constructor stub
}
#Override
public Fragment getItem(int arg0) {
// TODO Auto-generated method stub
Fragment fragment = null;
Bundle bundle = new Bundle();
bundle.putString("key", selectedProfileName);
if (arg0 == 0) {
fragment = new FragmentBodyPart();
fragment.setArguments(bundle);
}
if (arg0 == 1) {
fragment = new FragmentGeneralSymptoms();
fragment.setArguments(bundle);
}
if (arg0 == 2) {
fragment = new FragmentTray();
}
return fragment;
}
#Override
public int getCount() {
// TODO Auto-generated method stub
return 3;
}
}
#Override
public void onPageSelected(int arg0) {
// TODO Auto-generated method stub
actionBar.setSelectedNavigationItem(arg0);
}
#Override
public void respond(String string) {
// TODO Auto-generated method stub
FragmentTray frag2 = new FragmentTray();
frag2.addToTray(string);
}
}
Finally my Interface
public interface Tray {
public void respond(String string);
}
what I usually do is:
1.- Define the interface. It's done, fine.
2.- Your FragmentGeneralSymptoms must have an initializated listener. Yuou're that but you forgot to set the listener in the class.
public class FragmentGeneralSymptoms extends ListFragment implements OnItemClickListener {
ArrayList<String> symptomList;
String name;
String selected;
Tray tray;
(your code)
public void setTrayListener(Tray listener)
{
tray = listener;
}
#Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
// TODO Auto-generated method stub
selected = symptomList.get(arg2);
if(tray != null)
{
symptomList.remove(selected); // if you want to remove this element from this list
tray.respond(selected);
}
} }
3.- Your FragmentTray class must implement the interface:
public class FragmentTray extends ListFragment implements Tray{
private ArrayList<String> selectedList;
public FragmentTray(){}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// TODO Auto-generated method stub
return inflater.inflate(R.layout.fragment_tray, container, false);
}
public void addToTray(String symptom){
selectedList.add(symptom);
setListAdapter(new ArrayAdapter<String>(getActivity(),
R.layout.general_list, selectedList));
}
public void removeSymptom(String string){
selectedList.remove(selectedList.indexOf(string));
}
public void respond(String name)
{
// do stuffs!!!!
selectedList.add(new Symtom(name)); // for example
System.out.println("Inside the respond method respond in FragmentTray class");
}
}
4.- And last but not least. When you build the fragments you must register the listener:
class MyAdapter extends FragmentStatePagerAdapter {
private List<Fragment> fragmentList;
public MyAdapter(FragmentManager fm) {
super(fm);
// TODO Auto-generated constructor stub
fragmentList = new ArrayList<Fragment>();
Fragment fragmentBodyPart = new FragmentBodyPart();
Fragment fragmentTray = new FragmentTray();
Fragment fragmentGeneralSymptoms = new FragmentGeneraSymptoms();
// this is important*********************************
fragmentGeneraSmptoms.setTrayListener(fragmentTray);
fragmentList.add(fragmentBodyPart);
fragmentList.add(fragmentGeneralSymptoms);
fragmentList.add(fragmentTray);
}
#Override
public Fragment getItem(int arg0) {
// TODO Auto-generated method stub
Fragment fragment = null;
Bundle bundle = new Bundle();
bundle.putString("key", selectedProfileName);
if (arg0 == 0) {
fragment = (Fragment) fragmentList.get(0);
fragment.setArguments(bundle);
}
if (arg0 == 1) {
fragment = (Fragment) fragmentList.get(1);
fragment.setArguments(bundle);
}
if (arg0 == 2) {
fragment = (Fragment) fragmentList.get(2);
}
return fragment;
}
#Override
public int getCount() {
// TODO Auto-generated method stub
return fragmentList.size();
}
}
I hope that it helps.
Related
How to add backstack to viewpager
How do we manage to go to previous fragment from the current fragment
I have got the fragment part working , now I am trying to learn to manage the naviation of fragments by the back button
Here is the main activity which contains three fragments
public class MainActivity extends FragmentActivity {
ViewPager viewpager = null;
LinearLayout lay;
#Override
protected void onCreate(Bundle savedInstancestate) {
// TODO Auto-generated method stub
super.onCreate(savedInstancestate);
setContentView(R.layout.activity_main);
viewpager = (ViewPager) findViewById(R.id.pager);
viewpager.setPageTransformer(true, new DepthPageTransformer());
FragmentManager fragmentManager = getSupportFragmentManager();
viewpager.setAdapter(new myAdaper(fragmentManager));
PagerTitleStrip pagerTitleStrip = (PagerTitleStrip)findViewById(R.id.pager_title_strip);
pagerTitleStrip.setTextSize(TypedValue.COMPLEX_UNIT_SP, 24);
// pagerTitleStrip.setTextColor(Color.BLUE);
}
class myAdaper extends FragmentPagerAdapter {
public myAdaper(FragmentManager fm) {
super(fm);
// TODO Auto-generated constructor stub
}
#Override
public Fragment getItem(int i) {
// TODO Auto-generated method stub
Fragment fragment = null;
if (i == 0) {
fragment = new fragmentA();
}
if (i == 1) {
fragment = new fragmentB();
}
if (i == 2) {
fragment = new fragmentC();
}
return fragment;
}
#Override
public int getCount() {
// TODO Auto-generated method stub
return 3;
}
#Override
public CharSequence getPageTitle(int position) {
String title = new String();
SpannableStringBuilder sb = new SpannableStringBuilder(""+ position);
if (position == 0) {
return "Tab1";
}
if (position == 1) {
return "Tab2";
}
if (position == 2) {
return "Tab3";
}
return null;
}
#Override
public void destroyItem(ViewGroup container, int position, Object object) {
// TODO Auto-generated method stub
}
And the fragments are
public class fragmentA extends Fragment{
#Override
public View onCreateView(LayoutInflater inflater,
ViewGroup container, Bundle savedInstanceState) {
// TODO Auto-generated method stub
return inflater.inflate(R.layout.fragment_a,container, false);
}
}
these are repeated with same code just diff color for the other two fragments fragment B and fragment C
now if
I am on fragment C i want ot go back to fragment B and
if I am on Fragment B i want to go to Fragment A
Store in a variable wich is your current page (you can get it with the ViewPager.OnPageChangeListener). Then override the onBackPressed()method of your activity and change to the previous of your viewpager with setCurrentItem(int item)
If you are in the first fragment just call super.onBackPressed()
I have navigational drawer and fragment for each drawer item. Now Under each fragment we have created multiple fragments using FragmentPagerAdapter.
I've 3 drawer items as Home, Group and Feedback. Under Home, there are 2 fragments i.e My Profile and Logged
so i've created a swipeable tabs for My Profile and Logged and these two fragments are under home item. Now i've to do some network calls in both the fragments(My Profile, Logged) but how to identify which fragment is active on FragmentPagerAdapter? Is it possible to stop adapter to create fragments in advance.
HomeFragment
DrawerModel model = new DrawerModel();
LoggedFragment loggedFrag = new LoggedFragment();
loggedFrag.setTargetFragment(loggedFrag, 0);
model.setFragment(loggedFrag);
dFragments.add(model);
model = new DrawerModel();
model.setDrawerTitle(getString(R.string.profile_tab_title));
model.setFragment(new ProfileFragment());
dFragments.add(model);
Bundle bundle = new Bundle();
bundle.putSerializable("fragments", dFragments);
fragment = new DrawerFragment();
fragment.setArguments(bundle);
navigateFragment(fragment);
DrawerFragment
public class DrawerFragment extends Fragment {
private FragmentAdapter pagerAdapter;
private ViewPager mViewPager;
private ArrayList<DrawerModel> fList;
#SuppressWarnings("unchecked")
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
fList = (ArrayList<DrawerModel>) getArguments().getSerializable(
"fragments");
View v = inflater.inflate(R.layout.swipe_tabs, container, false);
pagerAdapter = new FragmentAdapter(getChildFragmentManager(), fList);
mViewPager = (ViewPager) v.findViewById(R.id.pager);
mViewPager.setAdapter(pagerAdapter);
return v;
}
}
FragmentAdapter
public class FragmentAdapter extends FragmentStatePagerAdapter {
private int TOTAL_TABS = 0;
private ArrayList<DrawerModel> fragmentList;
private SparseArray<Fragment> mPageReference = new SparseArray<Fragment>();
public FragmentAdapter(FragmentManager fm, ArrayList<DrawerModel> fList) {
super(fm);
// TODO Auto-generated constructor stub
TOTAL_TABS = fList.size();
fragmentList = fList;
}
#Override
public Fragment getItem(int position) {
// TODO Auto-generated method stub
return fragmentList.get(position).getDrawerFragment();
}
#Override
public int getCount() {
// TODO Auto-generated method stub
return TOTAL_TABS;
}
#Override
public Object instantiateItem(ViewGroup container, int position) {
// TODO Auto-generated method stub
Fragment fragment = (Fragment) super.instantiateItem(container,
position);
mPageReference.put(position, fragment);
Log.d("FragmentAdapter - OnCreate", mPageReference.size() + "");
return fragment;
}
#Override
public CharSequence getPageTitle(int position) {
// TODO Auto-generated method stub
return fragmentList.get(position).getDrawerTitle();
}
#Override
public void destroyItem(ViewGroup container, int position, Object object) {
// TODO Auto-generated method stub
mPageReference.remove(position);
Log.d("FragmentAdapter - onDestroy", mPageReference.size() + "");
super.destroyItem(container, position, object);
}
public Fragment getFragment(int key) {
return mPageReference.get(key);
}
}
Logged Fragment
public class LoggedFragment extends Fragment implements OnClickListener {
TextView tHeader, tEmail, tvPhone;
SharedPreferences sp;
ImageView ivAds;
String bannerUrl = null;
private Handler handler = new Handler();
private static final String TAG = "LoggedFragment";
private void addListeners() {
// TODO Auto-generated method stub
ivAds.setOnClickListener(this);
}
Runnable updateImage = new Runnable() {
#Override
public void run() {
// TODO Auto-generated method stub
if (Utility.checkConnectivity(getActivity()))
new ImageTask((Home_Activity) getActivity(), "Logged")
.execute();
handler.postDelayed(this, Utility.AD_DURATION);
}
};
#Override
public void onStart() {
// TODO Auto-generated method stub
super.onStart();
if (handler != null)
handler.post(updateImage);
}
#Override
public void onStop() {
// TODO Auto-generated method stub
super.onStop();
if (handler != null)
handler.removeCallbacks(updateImage);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// TODO Auto-generated method stub
View v = inflater.inflate(R.layout.logged_in, container, false);
bindComponents(v);
addListeners();
return v;
}
private void bindComponents(View v) {
// TODO Auto-generated method stub
ivAds = (ImageView) v.findViewById(R.id.ivLoggedAds);
}
public void updateBanner(Bitmap bitmap, String url) {
ivAds.setImageBitmap(bitmap);
bannerUrl = url;
}
}
Call to update fragment method
Fragment fragment = activity.getSupportFragmentManager()
.findFragmentById(R.id.content_frame)
.getTargetFragment();
if (fragment instanceof LoggedFragment) {
LoggedFragment logged = (LoggedFragment) fragment;
logged.updateBanner(result, parameter[1]);
} else
Log.d(TAG, "No Logged Fragment Found");
Now under logged and my profile fragment i need to fetch some data dynamically as soon fragment is visible to user but unable to do so?
Any ideas/suggestions is highly appreciated.
use below code to find your fragment,
FragmentAdapter pa = (FragmentAdapter)viewPager.getAdapter();
pa.getFragment(viewPager.getCurrentItem()).updateBanner();
the code select current visible fragment you can change it to other one by
pa.getFragment(index of other fragment).updateBanner();
you must cast pa.getFragment(viewPager.getCurrentItem()) to what fragment you want for example if at that position it is logged change it to below:
((LoggedFragment)pa.getFragment(viewPager.getCurrentItem()) )
I would say you have two differnt options.
Option one: Use setTargetFragment() and getTargetFragment() so you get a reference to that fragment you need.
Option two: Use the FragmentManager simply get that Fragment you need from the FragmentManager and call that methods you defined on your Fragment.
I want to create a list view under different tabs. This is what i did for FragmentA class.
public class FragmentA extends ListFragment {
String [] names = {"Theo","Theo","Theo","Theo","Theo"};
public FragmentA() {
// Required empty public constructor
}
#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(#Nullable Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onActivityCreated(savedInstanceState);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(getActivity(),
android.R.layout.simple_list_item_1,names);
setListAdapter(adapter);
}
}
I am creating a sample listview into the onActivityCreated method. Finally for the Tabs I am using the following code.
public class MainActivity extends ActionBarActivity implements TabListener {
ActionBar actionBar;
ViewPager pager;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
actionBar = getActionBar();
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
pager = (ViewPager)findViewById(R.id.pager);
pager.setAdapter(new MyAdapter(getSupportFragmentManager()));
pager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
#Override
public void onPageSelected(int arg0) {
// TODO Auto-generated method stub
actionBar.setSelectedNavigationItem(arg0);
}
#Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
// TODO Auto-generated method stub
}
#Override
public void onPageScrollStateChanged(int arg0) {
// TODO Auto-generated method stub
}
});
ActionBar.Tab tab1=actionBar.newTab();
tab1.setText("Tab 1");
tab1.setTabListener(this);
ActionBar.Tab tab2=actionBar.newTab();
tab2.setText("Tab 2");
tab2.setTabListener(this);
ActionBar.Tab tab3=actionBar.newTab();
tab3.setText("Tab 3");
tab3.setTabListener(this);
actionBar.addTab(tab1);
actionBar.addTab(tab2);
actionBar.addTab(tab3);
}
#Override
public void onTabReselected(Tab arg0, FragmentTransaction arg1) {
// TODO Auto-generated method stub
}
#Override
public void onTabSelected(Tab arg0, FragmentTransaction arg1) {
// TODO Auto-generated method stub
pager.setCurrentItem(arg0.getPosition());
}
#Override
public void onTabUnselected(Tab arg0, FragmentTransaction arg1) {
// TODO Auto-generated method stub
}
}
class MyAdapter extends FragmentPagerAdapter{
public MyAdapter(FragmentManager fm) {
super(fm);
// TODO Auto-generated constructor stub
}
#Override
public Fragment getItem(int arg0) {
// TODO Auto-generated method stub
Fragment fragment = null;
if(arg0==0){
fragment = new FragmentA();
}
if(arg0==1){
fragment = new FragmentB();
}
if(arg0==2){
fragment = new FragmentC();
}
return fragment;
}
#Override
public int getCount() {
// TODO Auto-generated method stub
return 3;
}
}
The compiler doesn't let me to run the app as it gives me the following error..
Type mismatch: cannot convert from FragmentA to Fragment
Change type of fragment to fragmentA.
If I comment the setListAdapter(adapter) in the FragmentA class, everything is fine. Why is this happening?
change:
import android.app.ListFragment;
to
import android.support.v4.app.ListFragment;
you used ListFragmentfrom API level 11 but you must used ListFragment from support library in order to work with viewpager. because it is FragmentManager also comes from support library(getSupportFragmentManager) so it dose not understand any fragment from other than its own library.
Hello I have a viewpager of fragments in my application. my problem is clicking some button I want to pass seriazlizable to viewpageradapter (with the help of constructor). adapter must get the serializable pass it to fragment and update it's view. finally I want to set this adapter with updated fragment to the viewpager but nothing happens. the view is not updated. please help
public class ViewPagerAdapter extends FragmentPagerAdapter {
private Bank myobject;
public ViewPagerAdapter(FragmentManager fm,Bank object) {
super(fm);
myobject = object;
// TODO Auto-generated constructor stub
}
#Override
public Fragment getItem(int item) {
// TODO Auto-generated method stub
switch (item) {
case 0:
CurrencyFragment myFragment = new CurrencyFragment();
Bundle args = new Bundle();
args.putSerializable("message", myobject);
String code = myobject.getCode();
Log.i("TAG","kodiiiiiiiiiiiiiiii"+ code);
myFragment.setArguments(args);
return myFragment;
default:
// The other sections of the app are dummy placeholders.
Fragment fragment = new CurrencyFragment();
return fragment;
}
}
#Override
public int getCount() {
// TODO Auto-generated method stub
return 2;
}
and in the mainactivity
mDrawerList.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> arg0, View arg1, int position,
long arg3) {
// TODO Auto-generated method stub
getBanks(position);
}
});
public void getBanks(final int pos) {
new AsyncTask<Integer, Void, List<Bank>>() {
#Override
protected List<Bank> doInBackground(Integer... params) {
return mGeoCurrency.getBanks("en").getData();
}
#Override
protected void onPostExecute(List<Bank> banksList) {
super.onPostExecute(banksList);
try {
mListOfBanks = banksList;
mBankAdapter = new BankAdapter(getApplicationContext(),
R.layout.drawer_layout, mListOfBanks);
mDrawerList.setAdapter(mBankAdapter);
Bank nBank = mListOfBanks.get(pos);
Log.i("tag","kodiiiiiiiiiiiiii"+nBank.getCode());
ViewPagerAdapter pagerAdapter = new ViewPagerAdapter(getSupportFragmentManager(),nBank);
mViewpager.setAdapter(pagerAdapter);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}.execute();
}
Try calling notifyDataSetChanged (ref) on the pager adapter to ask it to refresh its views.
The adapter will recreate the views, the getItem() method of the adapter is called again while creating the Fragments.
MainActivity.java
public class MainActivity extends SherlockFragmentActivity {
static MyListfragment mf;
ViewPager mpager;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
mf = new MyListfragment();
ft.add(android.R.id.content,mf).commit();
}}
MyListfragment.java
public class MyListfragment extends SherlockListFragment {
MyDisplayfragment tempFrag;
#Override
public void onListItemClick(ListView l, View v, int position, long id) {
// TODO Auto-generated method stub
super.onListItemClick(l, v, position, id);
Connector.selection = position;
FragmentTransaction ft = getActivity().getSupportFragmentManager().beginTransaction();
if(position==0)
{
tempFrag=new MyDisplayfragment();
tempFrag.setLayout(R.layout.law);
subFragmentAdapter mAdapter = new subFragmentAdapter(getChildFragmentManager());
tempFrag.setViewPagerAdapter(mAdapter);
}
ft.replace(android.R.id.content,tempFrag);
ft.addToBackStack(null);
ft.commit();
}
#Override
public void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
int layout = Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB ?
android.R.layout.simple_list_item_activated_1 : android.R.layout.simple_list_item_1;
setListAdapter(new ArrayAdapter<String>(getActivity(),
layout, Connector.list));
}}
MyDisplayfragment.java
public class MyDisplayfragment extends SherlockFragment {
int resource;
FragmentPagerAdapter mAdapter;
ViewPager v;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// TODO Auto-generated method stub
if(Connector.selection==-1)
resource=R.layout.displayfragment;
return inflater.inflate(resource, container, false);
}
public void setViewPagerAdapter(FragmentPagerAdapter x)
{
mAdapter=x;
}
public void setLayout(int layout)
{
resource=layout;
}
#Override
public void onViewCreated(View view, Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onViewCreated(view, savedInstanceState);
ViewPager pager=(ViewPager) view.findViewById(R.id.mpager);
pager.setAdapter(mAdapter);
}}
subFragment.java
public final class subFragment extends SherlockFragment {
private int layout;
public static subFragment newInstance(int content) {
subFragment fragment = new subFragment();
fragment.layout=content;
return fragment;
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// TODO Auto-generated method stub
return inflater.inflate(layout,container,false);
}}
subFragmentAdapter.java
public class subFragmentAdapter extends FragmentPagerAdapter{
int[] LAYOUT={R.layout.cccc,R.layout.aaaa,R.layout.bbb};
private int mCount;
public subFragmentAdapter(FragmentManager fm) {
super(fm);
mCount = LAYOUT.length;
}
#Override
public Fragment getItem(int position) {
return subFragment.newInstance(LAYOUT[position]);
}
#Override
public int getCount() {
return mCount;
}
}
Connector.java
public class Connector {
static int selection = -1;
static String list[] = { "Law" };}
In the above project
1)MyListfragment.java is used for navigation
2)MyDisplayfragment.java is used to display according to selection made in MyListFragment
3)Connector.java is used to communicate between the above two fragments
4)subFragment.java is used to populate Viewpager with Fragments
5)subFragmentAdapter.java is th adapter for Viewpager
When i run this project the viewpager seems to be blank and doesnot show any of the child fragments and after debugging i saw that onCreateView() method of subFragment.java is not called.
My question is why the onCreateView() method is not being called
Please refer to Luksprog's comment for the answer.