FragmentTabHost not creating view inside Fragment in android - android

I am having an issue getting the view to change on a tabhost - when I select a tab the content stays blank.
From what I can tell, onCreateView is not being called on the child Fragments. onMenuCreate runs fine because the menu changes like it is supposed to.
public class PatientTabFragment extends Fragment {
private FragmentTabHost mTabHost;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
mTabHost = new FragmentTabHost(getActivity());
mTabHost.setup(getActivity(), getChildFragmentManager());
mTabHost.addTab(mTabHost.newTabSpec("simple").setIndicator("Info"),
NewPatientFragment.class, null);
mTabHost.addTab(mTabHost.newTabSpec("contacts").setIndicator("Notes"),
NoteListFragment.class, null);
return mTabHost;
}
#Override
public void onDestroyView() {
super.onDestroyView();
mTabHost = null;
}
}

according to the docs:
Special TabHost that allows the use of Fragment objects for its tab
content. When placing this in a view hierarchy, after inflating the
hierarchy you must call setup(Context, FragmentManager, int) to
complete the initialization of the tab host.
(emphasis mine)
So I suggest somethong like this:
public class PatientTabFragment extends Fragment {
private FragmentTabHost mTabHost;
private boolean createdTab = false;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
mTabHost = new FragmentTabHost(getActivity());
mTabHost.setup(getActivity(), getChildFragmentManager());
mTabHost.addTab(mTabHost.newTabSpec("simple").setIndicator("Info"),
NewPatientFragment.class, null);
mTabHost.addTab(mTabHost.newTabSpec("contacts").setIndicator("Notes"),
NoteListFragment.class, null);
return mTabHost;
}
public void onResume(){
if (!createdTab){
createdTab = true;
mTabHost.setup(getActivity(), getActivity().
getSupportedFragmentManager());
}
}
#Override
public void onDestroyView() {
super.onDestroyView();
mTabHost = null;
}
}

Now we can use TabLayout and ViewPager do those things.This is a good guide to use it.Here is my code:
viewPager=(NonSwipeableViewPager)view.findViewById(R.id.circleresdyn_viewpager);
tabLayout=(TabLayout)view.findViewById(R.id.circleresdyn_tablayout);
if (viewPager != null) {
Adapter adapter = new Adapter(((AppCompatActivity)activity).getSupportFragmentManager());
ContentFragment con=new ContentFragment();
con.setArguments(bundleForFramgnet);
MemberFragment memberFragment=new MemberFragment();
memberFragment.setArguments(bundleForFramgnet);
CirResDynTileFragment cirResDynTileFragment=new CirResDynTileFragment();
cirResDynTileFragment.setArguments(bundleForFramgnet);
adapter.addFragment(cirResDynTileFragment, "Tab1");
adapter.addFragment(con, "Tab2");
adapter.addFragment(memberFragment, "Tab3");
viewPager.setAdapter(adapter);
viewPager.setOffscreenPageLimit(3);
tabLayout.setTabGravity(TabLayout.GRAVITY_CENTER);
tabLayout.setupWithViewPager(viewPager);
tabLayout.getTabAt(0).select();
}

Check this peace of code. It may help you:
import android.app.Fragment;
public class Change_password extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.change_password, container,false);
setTabs();
return rootView;
}
private void setTabs() {
try {
addTab("Airlines", R.drawable.tab_home, HomeActivity_bkp.class);
addTab("Advance Search", R.drawable.tab_search,
AdvanceSearchAcitivty.class);
addTab("Booking", R.drawable.tab_home, Booking.class);
addTab("Settings", R.drawable.tab_search, SettingAcitivty.class);
} catch (Exception e) {
Toast.makeText(getApplicationContext(), e.toString(),
Toast.LENGTH_LONG).show();
// TODO: handle exception
}
}
private void addTab(String labelId, int drawableId, Class<?> c) {
TabHost tabHost = getTabHost();
Intent intent = new Intent(this, c);
TabHost.TabSpec spec = tabHost.newTabSpec("tab" + labelId);
View tabIndicator = LayoutInflater.from(this).inflate(
R.layout.tab_indicator, getTabWidget(), false);
TextView title = (TextView) tabIndicator.findViewById(R.id.title);
title.setText(labelId);
ImageView icon = (ImageView) tabIndicator.findViewById(R.id.icon);
icon.setImageResource(drawableId);
spec.setIndicator(tabIndicator);
spec.setContent(intent);
tabHost.addTab(spec);
}

Related

How to run tabactivity in a fragment?

public class Test extends Fragment {
EditText subject,bodybd;
TextView buttonpass;
private long mLastClickTime = 0;
TabHost tHost;
public static Test newInstance() {
Test fragment = new Test();
return fragment;
}
ImageView my_loc_btn;
#Nullable
#Override
public View onCreateView(LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
setTitleFragment("Email to GSD");
View rootView = inflater.inflate(R.layout.store_location, container, false);
my_loc_btn=(ImageView) rootView.findViewById(R.id.my_loc_btn);
my_loc_btn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Fragment newFragment = new MyLocation();
FragmentTransaction transaction = getFragmentManager().beginTransaction();
transaction.replace(R.id.tabcontent, newFragment);
transaction.addToBackStack(null);
transaction.commit();
}
});
// ///// set tab content////
Resources ressources = getResources();
TabHost tabHost = (TabHost) rootView.findViewById(android.R.id.tabhost);
tabHost.setup();
// List tab
Intent intentAndroid = new Intent().setClass(getActivity(),NewMapShow.class);
TabHost.TabSpec tabSpecAndroid = tabHost
.newTabSpec("Android")
.setIndicator("Android",getResources().getDrawable(R.drawable.nicon))
.setContent(intentAndroid);
// map tab
Intent intentApple = new Intent().setClass(getActivity(), MyLocation.class);
TabHost.TabSpec tabSpecApple = tabHost
.newTabSpec("Apple")
.setIndicator("Apple",getResources().getDrawable(R.drawable.nicon))
.setContent(intentApple);
tabHost.addTab(tabSpecApple);
tabHost.addTab(tabSpecAndroid);
/** Defining Tab Change Listener event. This is invoked when tab is changed */
TabHost.OnTabChangeListener tabChangeListener = new TabHost.OnTabChangeListener() {
#Override
public void onTabChanged(String tabId) {
}
};
tabHost.setOnTabChangedListener(tabChangeListener);
tabHost.setCurrentTab(2);
/////////end of tabfragment//////////////
return rootView;
}
protected void setTitleFragment(String strTitle){
Toolbar mToolbar = (Toolbar) ((AppCompatActivity)getActivity()).findViewById(R.id.toolbar);
TextView txtTitle =((TextView)mToolbar.findViewById(R.id.toolbar_title));
txtTitle.setText(strTitle);
}
}
and my logcat message:
Process: com.nahid.com.gsdambassadorpractice, PID: 22380
java.lang.RuntimeException: Your TabHost must have a TabWidget whose id attribute is 'android.R.id.tabs'
at android.widget.TabHost.setup(TabHost.java:132)
at com.nahid.com.gsdambassadorpractice.fragment.Test.onCreateView(Test.java:85)
at android.support.v4.app.Fragment.performCreateView(Fragment.java:1974)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1067)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1252)
at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:742)
at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1617)
now i want to know how can i run tabactivity in a fragment.Also how to change fragment on tab click.Above code is crushing the application.Please help me how can i solve this problem.

onCreateView fragment on tabhost called every time I change the tab

I am using tab host with fragment, the following is the code of the main activity
public class HomeActivity extends Activity{
private FragmentTabHost mTabHost;
private ArrayList<CustomTabIndicator> mCustomTabIndicator;
private ArrayList<BaseFragment> mTabFragments;
private class CustomTabIndicator {
private int mIdResId;
private int mTitleResId;
private int mIconResId;
public CustomTabIndicator(int idResId, int titleResId, int iconResId) {
this.mIdResId = idResId;
this.mTitleResId = titleResId;
this.mIconResId = iconResId;
}
}
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_home_screen);
mTabHost = (FragmentTabHost) findViewById(android.R.id.tabhost);
mTabHost.setup(this, getSupportFragmentManager(), R.id.realtabcontent);
initializeTabIndicatorsAndFragments();
addTabIndicatorsToTabHost();
}
private void initializeTabIndicatorsAndFragments() {
mCustomTabIndicator = new ArrayList<HomeActivity.CustomTabIndicator>();
mCustomTabIndicator.add(new CustomTabIndicator(R.string.tab_dashboard,
R.string.tab_dashboard, R.drawable.tab_dashboard));
mCustomTabIndicator.add(new CustomTabIndicator(R.string.tab_feed,
R.string.tab_feed, R.drawable.tab_feed));
mCustomTabIndicator.add(new CustomTabIndicator(R.string.tab_lists,
R.string.tab_lists, R.drawable.tab_lists));
mCustomTabIndicator.add(new CustomTabIndicator(R.string.tab_me,
R.string.tab_me, R.drawable.tab_me));
mTabFragments = new ArrayList<BaseFragment>();
mTabFragments.add(new DashboardFragment());
mTabFragments.add(new FeedFragment());
mTabFragments.add(new ListsFragment());
mTabFragments.add(new MeFragment());
}
private void addTabIndicatorsToTabHost() {
for (int i = 0; i < mCustomTabIndicator.size(); i++) {
mTabHost.addTab(
mTabHost.newTabSpec(
getString(mCustomTabIndicator.get(i).mIdResId))
.setIndicator(
createTabView(
this,
mCustomTabIndicator.get(i).mTitleResId,
mCustomTabIndicator.get(i).mIconResId)),
mTabFragments.get(i).getClass(), null);
}
}
#SuppressLint("InflateParams")
private View createTabView(final Context context, final int textStringId,
final int imageResId) {
View view = LayoutInflater.from(context).inflate(
R.layout.fragment_tab_header_image_text_layout, null);
ImageView tabIV = (ImageView) view.findViewById(R.id.tab_icon);
tabIV.setImageResource(imageResId);
//TextView titleTV = (TextView) view.findViewById(R.id.tab_title);
//titleTV.setText(textStringId);
return view;
}
}
This is the code of one of the fragements
public class MeFragment extends BaseFragment {
private View mFragementView;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
Log.i("AMIRA", "MeFragment - onCreateView");
mFragementView = inflater.inflate(R.layout.fragment_me_screen,container, false);
initializeUIComponents();
initializeUIComponentsData();
initializeUIComponentsTheme();
initializeUIComponentsAction();
return mFragementView;
}
}
The problem now that onCreateView called every time I change the tab, and take long time to render and draw the content of fragment.
So I have tried the following code
public class MeFragment extends BaseFragment {
private View mFragementView;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
if (mFragementView != null) {
return mFragementView;
} else {
Log.i("AMIRA", "MeFragment - onCreateView");
mFragementView = inflater.inflate(R.layout.fragment_me_screen,container, false);
initializeUIComponents();
initializeUIComponentsData();
initializeUIComponentsTheme();
initializeUIComponentsAction();
return mFragementView;
}
}
}
and i got the following exception
java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first.
so can anyone help here ?
First, about the java.lang.IllegalStateException,
You haven't initialized mFragmentView.
Say something like:
mFragmentView = (View)getActivity().findViewById(R.id.mFragmentView);
or:
mFragmentView = (View)getActivity().findFragmentById(R.id.mFragmentView);
Second about the Fragment changing every time you change the tab.
Try this:
add setRetainInstance(true); to the Fragments onAttach() or onCreateView().
Open for correction, as always!
Regards,
Edward Quixote.

Detecting event on a FragmentTabHost present in Fragment

What I have:
I have a fragment
I am using SherlockActionBar library
I have a FragmentTabHost in Fragment
What i want to know: I want to detect onClick event each tab and perform some action based on it
Fragment1.java:
public class Fragment1 extends SherlockFragment{
private FragmentTabHost mTabHost;
//Mandatory Constructor
public Fragment1() {
}
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment1,container, false);
mTabHost = (FragmentTabHost)rootView.findViewById(android.R.id.tabhost);
mTabHost.setup(getActivity(), getChildFragmentManager(), R.id.realtabcontent);
mTabHost.addTab(mTabHost.newTabSpec("fragmentb").setIndicator("Rating"),
RatingAscending.class, null);
mTabHost.addTab(mTabHost.newTabSpec("fragmentc").setIndicator("Price"),
PriceAscending.class, null);
mTabHost.addTab(mTabHost.newTabSpec("fragmentd").setIndicator("Distance"),
DistanceAscending.class, null);
return rootView;
}
}
I'm assuming what you want to do is detect when a specific tab has been clicked in your FragmentTabHost. This can be accomplished quite simply by adding a setOnTabChangedListener.
Here is an example:
FragmentTabHost t = new FragmentTabHost(getActivity());
t.setOnTabChangedListener(new OnTabChangeListener() {
#Override
public void onTabChanged(String tabId) {
// TODO your actions go here
}
});
}

How can I switch from the old tabhost to swipe tabs in Android?

I am currentley using the old tabHost to hold a hand full of different fragments as tabs. How can I easily switch this over to the newer swipe tabs?
public class StatisticsTab extends Fragment {
private FragmentTabHost mTabHost;
//Mandatory Constructor
public StatisticsTab() {
}
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_tabs,container, false);
mTabHost = (FragmentTabHost)rootView.findViewById(android.R.id.tabhost);
mTabHost.setup(getActivity(), getChildFragmentManager(), R.id.realtabcontent);
mTabHost.addTab(mTabHost.newTabSpec("Basic").setIndicator("Basic"),
StatisticsPage.class, null);
mTabHost.addTab(mTabHost.newTabSpec("Brewery").setIndicator("Brewery"),
BreweryStatistics.class, null);
mTabHost.addTab(mTabHost.newTabSpec("Style").setIndicator("Style"),
StyleStatistics.class, null);
mTabHost.addTab(mTabHost.newTabSpec("Taste").setIndicator("Taste"),
TasteStatisticsPage.class, null);
return rootView;
}
}
Try PagerSlidingTabStrip(https://github.com/astuetz/PagerSlidingTabStrip). An interactive indicator to navigate between the different pages of a ViewPager. It works awesome for me.

TabHost with Fragment not work

I have my FragmentActivity with a NavigationDrawer, and in that i call my fragment, for example:
case 3:
fragment = new Edit();
break;
now, in Edit fragment i want, (if possible), have a tab view with 2 fragment inside. So i set my Edit fragment with:
public class Edit extends Fragment {
private FragmentTabHost mTabHost;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
setHasOptionsMenu(true);
mTabHost = new FragmentTabHost(getActivity());
mTabHost.setup(getActivity(), getChildFragmentManager());
mTabHost.addTab(mTabHost.newTabSpec("simple").setIndicator("Simple"),
EditSource.class, savedInstanceState);
mTabHost.addTab(mTabHost.newTabSpec("contacts").setIndicator("Contacts"),
EditSource.class, savedInstanceState);
return mTabHost;
}
#Override
public void onDestroyView() {
super.onDestroyView();
mTabHost = null;
}
EditSource is another fragment.
The app work, but when i go in Edit fragment i see the Tab view but i don't see the EditSource fragment inside that only black..sorry for my english.

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