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Tabs execute the codes present in their next fragments in android

I am trying to implement Tabs with swipe using ViewPager and 4 Fragments. When I swipe the tabs the respective xml layouts of the fragmnets are displayed correctly on each tab but the code of the fragments are not executed correctly.
eg-The following tabs have the respective fragments in it.
Tab0-ButtonFragment
public class ButtonFragment extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_button, container, false);
Log.i("inside", "button fragment");
return rootView;
}
Tab1-ImageFragment
public class ImageFragment extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_image, container, false);
Log.i("inside", "image fragment");
return rootView;
}
Tab2-TextFragment
public class TextFragment extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_text, container, false);
Log.i("inside", "text fragment");
return rootView;
}
Tab3-Test
public class Test extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.temp, container, false);
Log.i("inside", "tessssssssst fragment");
return rootView;
}
When the tabs are displayed
I get the log message for tab0 and tab1 simultaneously. Then after swiping and going to tab1 i get the log message for tab2. After swiping to tab2 i get log message for tab 3 and when tab 3 is reached no log message is dispalyed. Can anyone tell me how can I execute the respective codes for the respective tabs? My remaining codes are as below:
public class TabsPagerAdapter extends FragmentPagerAdapter { //Update - code formatting
public TabsPagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem( int index) {
Log.i("index", "" + index);
switch (index) {
case 0:
// Top Rated fragment activity
return new ButtonFragment();
case 1:
// Games fragment activity
return new ImageFragment();
case 2:
// Movies fragment activity
return new TextFragment();
case 3:
return new Test();
}
return null;
}
#Override
public int getCount() {
// get item count - equal to number of tabs
return 4;
}
MainActivity
public class MainActivity extends FragmentActivity implements OnTabChangeListener, OnPageChangeListener {
private TabsPagerAdapter mAdapter;
private ViewPager mViewPager;
private TabHost mTabHost;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mViewPager = (ViewPager) findViewById(R.id.viewpager);
// Tab Initialization
initialiseTabHost();
mAdapter = new TabsPagerAdapter(getSupportFragmentManager());
// Fragments and ViewPager Initialization
mViewPager.setAdapter(mAdapter);
mViewPager.setOnPageChangeListener(MainActivity.this);
}
// Method to add a TabHost
private static void AddTab(MainActivity activity, TabHost tabHost, TabHost.TabSpec tabSpec) {
tabSpec.setContent(new MyTabFactory(activity));
tabHost.addTab(tabSpec);
}
// Manages the Tab changes, synchronizing it with Pages
public void onTabChanged(String tag) {
int pos = this.mTabHost.getCurrentTab();
this.mViewPager.setCurrentItem(pos);
}
#Override
public void onPageScrollStateChanged(int arg0) {
}
// Manages the Page changes, synchronizing it with Tabs
#Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
int pos = this.mViewPager.getCurrentItem();
this.mTabHost.setCurrentTab(pos);
}
#Override
public void onPageSelected(int arg0) {
}
// Tabs Creation
private void initialiseTabHost() {
mTabHost = (TabHost) findViewById(android.R.id.tabhost);
mTabHost.setup();
// TODO Put here your Tabs
MainActivity.AddTab(this, this.mTabHost, this.mTabHost.newTabSpec("ButtonTab").setIndicator("ButtonTab"));
MainActivity.AddTab(this, this.mTabHost, this.mTabHost.newTabSpec("ImageTab").setIndicator("ImageTab"));
MainActivity.AddTab(this, this.mTabHost, this.mTabHost.newTabSpec("TextTab").setIndicator("TextTab"));
MainActivity.AddTab(this, this.mTabHost, this.mTabHost.newTabSpec("TestingTab").setIndicator("TestingTab"));
mTabHost.setOnTabChangedListener(this);
}

This is default behaviour of viewpager you can not change it as viewpager creates fragments so that the views exist, so the user can swipe between them, so that the old view sliding off the screen and the new view sliding onto the screen. You can write your code like this
#Override
public void setUserVisibleHint(boolean isVisibleToUser) {
super.setUserVisibleHint(isVisibleToUser);
if (isVisibleToUser) {
Log.i("inside", "button fragment");
}else{
// fragment is not visible
}
}
so that when fragment is visible your code execute

When change your tab recall your corresponding fragment.
Try this it will help you
Create TabFragment.java
public class TabFragment extends Fragment implements OnPageChangeListener,
OnTabChangeListener {
private TabHost tabHost;
private int currentTab = 0;
private SwipeDisableViewPager viewPager;
protected TabPagerAdapter pageAdapter;
private List<Fragment> fragments;
private final int TAB_BUTTON=0,TAB_IMAGE=1,TAB_TEXT=2,TAB_TEST=3;
#SuppressWarnings("unchecked")
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.activity_tabhost, null);
viewPager = (SwipeDisableViewPager) view.findViewById(R.id.viewpager);
tabHost = (TabHost) view.findViewById(android.R.id.tabhost);
viewPager.addOnPageChangeListener(this);
fragments = new ArrayList<>();
fragments.add(new ButtonFragment());
fragments.add(new ImageFragment());
fragments.add(new TextFragment());
fragments.add(new Test());
return view;
}
#Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
pageAdapter = new TabPagerAdapter(getChildFragmentManager(), fragments, getArguments());
pageAdapter.notifyDataSetChanged();
viewPager.setAdapter(pageAdapter);
viewPager.setOffscreenPageLimit(3);
setupTabs();
}
private void setupTabs() {
tabHost.setup();
tabHost.addTab(newTab(R.string.home, R.drawable.menu_home_bg));
tabHost.addTab(newTab(R.string.likes, R.drawable.menu_likes_bg));
tabHost.addTab(newTab(R.string.matches, R.drawable.menu_matches_bg));
for (int i = 0; i < tabHost.getTabWidget().getChildCount(); i++) {
tabHost.getTabWidget().setShowDividers(LinearLayout.SHOW_DIVIDER_NONE);
}
tabHost.setOnTabChangedListener(this);
tabHost.setCurrentTab(currentTab);
}
private View getTabIndicator(Context context, int title, int icon) {
View view = LayoutInflater.from(context).inflate(R.layout.tab_view, null);
ImageView iv = (ImageView) view.findViewById(R.id.imageView);
iv.setImageResource(icon);
TextView tv = (TextView) view.findViewById(R.id.textView);
tv.setText(title);
return view;
}
private TabSpec newTab(int tabValue, int icon) {
TabSpec tabSpec = tabHost.newTabSpec(getString(tabValue));
tabSpec.setIndicator(getTabIndicator(tabHost.getContext(), tabValue, icon));
tabSpec.setContent(new Dummy(getActivity()));
return tabSpec;
}
#Override
public void onPageScrollStateChanged(int arg0) {
}
#Override
public void onPageScrolled(int currentPosition, float arg1, int arg2) {
}
#Override
public void onPageSelected(int position) {
if (position == 0)
viewPager.setSwipeEnabled(false);
else
viewPager.setSwipeEnabled(true);
tabHost.setCurrentTab(position);
if (listener != null)
listener.onTabChanged(position);
}
#Override
public void onTabChanged(String tabId) {
currentTab = tabHost.getCurrentTab();
viewPager.setCurrentItem(currentTab);
switch(currentTab){
case TAB_BUTTON:
((ButtonFragment) fragments.get(currentTab)).recall();
break;
case TAB_IMAGE:
((ImageFragment) fragments.get(currentTab)).recall();
break;
case TAB_TEXT:
((TextFragment) fragments.get(currentTab)).recall();
break;
case TAB_TEST:
((Test) fragments.get(currentTab)).recall();
break;
}
}
create tab_fragment.xml
<?xml version="1.0" encoding="utf-8"?>
<TabHost xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#android:id/tabhost"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="fill_parent"
android:orientation="vertical">
<TabWidget
android:id="#android:id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:background="#drawable/menu_bg"
android:fadingEdge="none"
android:gravity="center"
android:showDividers="none"
android:tabStripEnabled="false" />
<FrameLayout
android:id="#android:id/tabcontent"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_weight="0" />
<com.mobellotech.shift.Widget.SwipeDisableViewPager
android:id="#+id/viewpager"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:background="#FFFFFF" />
</LinearLayout>
</TabHost>
Create tab_view.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical">
<ImageView
android:id="#+id/imageView"
android:layout_width="45dp"
android:layout_height="45dp"
android:contentDescription="#string/menu_icon" />
<TextView
android:id="#+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
Create TabPagerAdaper
public class TabPagerAdapter extends FragmentPagerAdapter {
private Bundle args;
private List<Fragment> fragments;
public TabPagerAdapter(FragmentManager fm, List<Fragment> fragments,
Bundle args) {
super(fm);
this.fragments = fragments;
this.args = args;
}
#Override
public Fragment getItem(int position) {
Fragment fragment = fragments.get(position);
fragment.setArguments(args);
return fragment;
}
#Override
public int getCount() {
return fragments.size();
}
#Override
public int getItemPosition(Object object) {
return POSITION_NONE;
}
}
Create MainActivity.java
public class MainActivity extends AppCompatActivity {
protected TabFragment tabFragment;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
tabFragment = new TabFragment();
FragmentManager fragmentManager = getSupportFragmentManager();
fragmentManager.beginTransaction().replace(R.id.frame_container, tabFragment).commit();
}
}
Create activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/DrawerLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<FrameLayout
android:id="#+id/frame_container"
android:layout_width="match_parent"
android:layout_height="match_parent"
/>
</android.support.v4.widget.DrawerLayout>
Finally add the recall method in your fragment class like this
public class ButtonFragment extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_button, container, false);
Log.i("inside", "button fragment");
return rootView;
}
public void recall() {
Log.i("inside", "button fragment");
}
}

Navigation drawer + ViewPager - fragments do not show

I have a problem with the layout I created. I used the Navigation Drawer as a main navigation pattern. It looks and works as I wanted, but the problem is that after returning to the fragment which holds ViewPager - the inner-fragments are not shown. However, they are shown when the application is first opened and shows the ViewPager-holding Fragment by default.
Other navigation drawer Fragments are displayed ok, so I don't expect that there is any problem with my Navigation Drawer implementation
RecordFragment.java (fragment holding ViewPager Fragments):
public class RecordFragment extends Fragment {
private ViewPager mViewPager;
public RecordFragment() {
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.record_fragment, container, false);
//getActivity().setTitle(R.string.record);
return rootView;
}
#Override
public void onViewCreated(View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
mViewPager = (ViewPager) view.findViewById(R.id.record_pager);
FragmentManager manager = getFragmentManager();
mViewPager.setAdapter(new MyFragmentPagerAdapter(manager));
}
class MyFragmentPagerAdapter extends FragmentPagerAdapter {
public MyFragmentPagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int item) {
Fragment fragment = null;
if (item == 0) {
fragment = new NumbersFragment();
} else if (item == 1) {
fragment = new MapFragment();
}
return fragment;
}
#Override
public int getCount() {
return 2;
}
#Override
public CharSequence getPageTitle(int position) {
String title = new String();
if (position == 0) {
title = "Numbers";
} else if (position == 1) {
title = "Map";
}
return title;
}
}
}
NumbersFragment.java (one of the Fragments holded by RecordFragment)
public class NumbersFragment extends Fragment {
public NumbersFragment() {
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.numbers_fragment, container, false);
//getActivity().setTitle(R.string.record);
return rootView;
}
}
record_fragment.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v4.view.ViewPager
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/record_pager"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v4.view.PagerTabStrip
android:id="#+id/pager_title_strip"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="top"
android:background="#33b5e5"
android:textColor="#fff"
android:paddingTop="4dp"
android:paddingBottom="4dp" />
</android.support.v4.view.ViewPager>
</LinearLayout>

You use Fragments inside another Fragment, in this case you need to use the Fragment#getChildFragmentManager() method:
FragmentManager manager = getChildFragmentManager();
If it doesn't work you can try to switch to FragmentStatePagerAdapter instead of FragmentPagerAdapter (but you still need to use child fragment manager).

As the ViewPager required Fragments and ViewPager itself on Fragment, we have to use getChildFragmentManager() instead of getSupportFragmentManager().

ViewPage Fragment disappear when reload again

The following is layout
test.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<Button android:layout_width="wrap_content" android:layout_height="wrap_content"
android:text="Click"
android:id="#+id/button"
/>
<!-- Framelayout to display Fragments -->
<FrameLayout
android:id="#+id/frame_container"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
test_detail.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="Hello"
android:id="#+id/textView" android:layout_gravity="center_horizontal"/>
</LinearLayout>
common_view_pager_layout
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v4.view.ViewPager
android:id="#+id/MainViewerPage"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<android.support.v4.view.PagerTabStrip
android:id="#+id/TitlePageTabStrip"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</android.support.v4.view.ViewPager>
</LinearLayout>
The following is my Activity code
public class TestFragmentActivity extends FragmentActivity {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
this.setContentView(R.layout.test);
Button button = (Button) this.findViewById(R.id.button);
button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
FragmentManager fragmentManager = getSupportFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.frame_container, new HomeFragment()).commit();
}
});
}
public class HomeFragment extends Fragment {
private PagerAdapter _adapter;
public HomeFragment() {
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.common_view_pager_layout, container, false);
this._adapter = new PagerAdapter(TestFragmentActivity.this);
this._adapter.add(new DetailFragment());
ViewPager pager = (ViewPager) view.findViewById(R.id.MainViewerPage);
pager.setAdapter(this._adapter);
return view;
}
}
public class DetailFragment extends Fragment {
public DetailFragment() {
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.test_detail, container, false);
return rootView;
}
}
public class PagerAdapter extends FragmentPagerAdapter {
private ArrayList<Fragment> _fragments;
public PagerAdapter(FragmentActivity activity) {
super(activity.getSupportFragmentManager());
this._fragments = new ArrayList<Fragment>();
}
public void add(Fragment fragment) {
this._fragments.add(fragment);
}
#Override
public Fragment getItem(int position) {
return this._fragments.get(position);
}
#Override
public CharSequence getPageTitle(int position) {
return "Test";
}
#Override
public int getCount() {
return 1;
}
}
}
When I click a button the fragment in ViewPager was display
But when I click the button again the fragment disappear
Please help me.

try using this:
in the constructor of your adapter change this :
public class MyPagerAdapter extends FragmentPagerAdapter {
private ArrayList<Fragment> _fragments;
public MyPagerAdapter(FragmentManager activity) {
super(activity);
this._fragments = new ArrayList<Fragment>();
}
public void add(Fragment fragment) {
this._fragments.add(fragment);
}
#Override
public Fragment getItem(int position) {
return this._fragments.get(position);
}
#Override
public CharSequence getPageTitle(int position) {
return "Test";
}
#Override
public int getCount() {
return 1;
}
}
and when you want to create the adapter send getChildFragmentManager() to its constructor
public class HomeFragment extends Fragment {
private MyPagerAdapter _adapter;
public HomeFragment() {
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.common_view_pager_layout, container, false);
ViewPager pager = (ViewPager) view.findViewById(R.id.MainViewerPage);
this._adapter = new MyPagerAdapter(getChildFragmentManager());
this._adapter.add(new DetailFragment());
pager.setAdapter(this._adapter);
return view;
}
}
I test it and it works, any problem comment it.
Good Luck!

In your Fragment class, in the onCreate() method, you have to call setRetainInstance(true) like this:
#Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setRetainInstance(true);
}
This tells the FragmentManager to keep your fragments on reloads.
In addition, check your manifest file doesn't have any
android:screenOrientation
config changes where you are basically saying you will handle reloads due to config changes yourself.

In PagerFragment 's onResume() add this:
#Override
public void onResume() {
super.onResume();
for (Fragment fragment : getFragmentManager().getFragments()) {
if (fragment instanceof Tab1Fragment || fragment instanceof Tab2Fragment) {
FragmentTransaction ft = getFragmentManager().beginTransaction();
ft.detach(fragment);
ft.attach(fragment);
ft.commit();
}
}
}

Try to add this lines in your code:
public int getItemPosition(Object object) {
return POSITION_NONE;
}
and Add the below lines
pager.setOnPageChangeListener(new OnPageChangeListener() {
#Override
public void onPageSelected(int position) {
... anything you may need to do to handle pager state ...
adapter.notifyDataSetChanged(); //this line will force all pages to be loaded fresh when changing between fragments
}
Under
pager.setAdapter(adapter);
Hope this may help you!

Ensure you pass the adapter instance the child fragment manager, not the fragment manager.
Like this:
this._adapter = new PagerAdapter(getChildFragmentManager());

recreate view of fragment via button

I've got a FragmentActivity which show the correct fragment, using a ViewPager. I added a Fragment StatePagerAdapter to the ViewPager. If I push a button at a Fragment, it should be recreated (onCreateView should be called again). The fragments are articles and if the user is offline, I'll show him "please check your networkconnection" and a button to reload. The button called a method in the FragmentActivity, but I don't know how implement it. Maybe I can destroy and recreate the current Fragment?
here the important part of the FragmentActivity:
private ArrayList<Fragment> fragments;
protected void onCreate(Bundle savedInstanceState)
{
context = this;
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_article_page_slider);
...
pages = datahandler.getCount(...);
viewPager = (ViewPager) findViewById(R.id.articlePager);
PagerAdapter pagerAdapter = new ScreenSlidePagerAdapter(getFragmentManager());
viewPager.setAdapter(pagerAdapter);
viewPager.setCurrentItem(startPosition);
fragments = new ArrayList<Fragment>(pages);
}
public void reloadData(View v)
{
// TODO
((ArticlePageFragment)fragments.get(viewPager.getCurrentItem())).refresh();
}
private class ScreenSlidePagerAdapter extends FragmentStatePagerAdapter
{
public ScreenSlidePagerAdapter(FragmentManager fm)
{
super(fm);
}
#Override
public Fragment getItem(int position)
{
Fragment fragment = new ArticlePageFragment();
Bundle args = new Bundle();
...
fragment.setArguments(args);
fragments.add(position, fragment);
return fragment;
}
public int getCount()
{
return pages;
}
}
and the Fragment itself:
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
{
activity = getActivity();
ViewGroup rootView = (ViewGroup) inflater.inflate(
R.layout.fragment_article_page, container, false);
CacheDataHandler cdh = new CacheDataHandler(activity);
cdh.open();
String htmlData = cdh.loadData();
rootView.findViewById(R.id.btn_reload_article_data).setVisibility(View.GONE);
webView = ((WebView) rootView.findViewById(R.id.articleFragment));
refresh();
...
return rootView;
}
public void refresh()
{
...
if (htmlData == null)
{
rootView.findViewById(R.id.btn_reload_article_data).setVisibility(View.VISIBLE);
webView.loadData(defaultdata,"text/html", "UTF-8");
}
else
{
webView.loadData(htmlData,"text/html", "UTF-8");
}
}
and the fragment_article_page.xml:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<WebView
android:id="#+id/articleFragment"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />
<Button
android:id="#+id/btn_reload_article_data"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:onClick="reloadData"
android:text="#string/btn_txt_reload_data"
android:visibility="gone" />
</RelativeLayout>
EDIT
added a private ArrayList<Fragment> fragments in FragmentActivity and transfer the code for manipulating the view in an extra refreshMethod, look ahead. All works fine, if I only click on the first or second Fragment (index 0 and 1). Otherwise I get an IndexOutOfBoundsException. How to initialize and fill the ArrayList?

How to create an Android Tabbed Dialog containing fragments?

Can anyone point me to an example or show me how to create a simple Tabbed Dialog in Android where the contents of each tab are Fragments? All the examples/tutorials I have found are about Fragments and Tabs, but nothing specific to DialogFragments.
The documentation for FragmentTabHost shows how to create tabs within normal fragments using getChildFragmentManager(). I'm assuming this should also work when the fragment is a DialogFragment but when I try it I get:
java.lang.IllegalStateException: Fragment does not have a view at android.support.v4.app.Fragment$1.findViewById(Fragment.java:1425)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:901)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1088)
...
Here's my code for setting up the view (which is then passed to AlertDialog.setView()):
private void setupView(View v) {
mTabHost = (FragmentTabHost) v.findViewById(android.R.id.tabhost);
mTabHost.setup(getActivity(), getChildFragmentManager(), R.id.realtabcontent);
mTabHost.addTab(mTabHost.newTabSpec("tab1").setIndicator("Tab1"),
MyDialogFragment.class, null);
}

Spent a lot of time to get it working, but no luck. The only solution I found is create dummy fragment tabhost and use viewpager with fragments instead of tabhost fragments
voters_dialog.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_height="match_parent"
android:layout_width="match_parent"
android:orientation="vertical"
>
<android.support.v4.app.FragmentTabHost
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/tabs"
>
</android.support.v4.app.FragmentTabHost>
<android.support.v4.view.ViewPager
android:id="#+id/pager"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"/>
</LinearLayout>
Dialog class, the trick is use onCreateView not onCreateDialog
public class VotersDialog extends DialogFragment {
private FragmentTabHost mTabHost;
private ViewPager viewPager;
private VotersPagerAdapter adapter;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.voters_dialog, container);
getDialog().setTitle(getArguments().getString("title"));
mTabHost = (FragmentTabHost) view.findViewById(R.id.tabs);
mTabHost.setup(getActivity(), getChildFragmentManager());
mTabHost.addTab(mTabHost.newTabSpec("tab1").setIndicator("Плюсов"), Fragment.class, null);
mTabHost.addTab(mTabHost.newTabSpec("tab2").setIndicator("Минусов"), Fragment.class, null);
adapter = new VotersPagerAdapter(getChildFragmentManager(), getArguments());
adapter.setTitles(new String[]{"Плюсов", "Минусов"});
viewPager = (ViewPager)view.findViewById(R.id.pager);
viewPager.setAdapter(adapter);
viewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
#Override
public void onPageScrolled(int i, float v, int i2) {
}
#Override
public void onPageSelected(int i) {
mTabHost.setCurrentTab(i);
}
#Override
public void onPageScrollStateChanged(int i) {
}
});
mTabHost.setOnTabChangedListener(new TabHost.OnTabChangeListener() {
#Override
public void onTabChanged(String s) {
int i = mTabHost.getCurrentTab();
viewPager.setCurrentItem(i);
}
});
return view;
}
public class VotersPagerAdapter extends FragmentPagerAdapter {
Bundle bundle;
String [] titles;
public VotersPagerAdapter(FragmentManager fm) {
super(fm);
}
public VotersPagerAdapter(FragmentManager fm, Bundle bundle) {
super(fm);
this.bundle = bundle;
}
#Override
public Fragment getItem(int num) {
Fragment fragment = new VotersListFragment();
Bundle args = new Bundle();
args.putSerializable("voters",bundle.getSerializable( num == 0 ? "pros" : "cons"));
fragment.setArguments(args);
return fragment;
}
#Override
public int getCount() {
return 2;
}
#Override
public CharSequence getPageTitle(int position) {
return titles[position];
}
public void setTitles(String[] titles) {
this.titles = titles;
}
}
public static class VotersListFragment extends ListFragment {
List<String> voters;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.list_fragment, container, false);
return view;
}
#Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
voters = (ArrayList) getArguments().getSerializable("voters");
ArrayAdapter<String> adapter = new ArrayAdapter<String>(getActivity(), android.R.layout.simple_list_item_1, voters);
setListAdapter(adapter);
getListView().setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
Intent intent = new Intent(getActivity(), ProfileActivity_.class);
String login = voters.get(i);
intent.putExtra("login", Utils.encodeString(login.substring(0, login.indexOf("(")).trim()));
startActivity(intent);
}
});
}
}
}
Here is result, now you can press tabs or swipe fragments

I was looking for the same solution but nothing worked out for me so I built my own Android tabbed dialog containing fragments. might be it may help someone.
you can checkout the complete source code from here

You should use a DialogFragment, TabLayout and ViewPager. For instance, your dialog fragment's view may look like this:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<android.support.design.widget.TabLayout
android:id="#+id/tabLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<android.support.v4.view.ViewPager
android:id="#+id/masterViewPager"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
Build your adapter and make sure you override the getPageTitleMethod, e.g:
public class CustomAdapter extends FragmentPagerAdapter {
List<Fragment> mFragmentCollection = new ArrayList<>();
List<String> mTitleCollection = new ArrayList<>();
public CustomAdapter(FragmentManager fm) {
super(fm);
}
public void addFragment(String title, Fragment fragment)
{
mTitleCollection.add(title);
mFragmentCollection.add(fragment);
}
//Needed for
#Override
public CharSequence getPageTitle(int position) {
return mTitleCollection.get(position);
}
#Override
public Fragment getItem(int position) {
return mFragmentCollection.get(position);
}
#Override
public int getCount() {
return mFragmentCollection.size();
}
}
In the OnCreateView of your dialog, you should setup your viewpager with the tabLayout:
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootview = inflater.inflate(R.layout.dialog_sample,container,false);
tabLayout = (TabLayout) rootview.findViewById(R.id.tabLayout);
viewPager = (ViewPager) rootview.findViewById(R.id.masterViewPager);
CustomAdapter adapter = new CustomAdapter(getChildFragmentManager());
adapter.addFragment("Boy",CustomFragment.createInstance("John"));
adapter.addFragment("Girl",CustomFragment.createInstance("Stacy"));
adapter.addFragment("Robot",CustomFragment.createInstance("Aeon"));
viewPager.setAdapter(adapter);
tabLayout.setupWithViewPager(viewPager);
return rootview;
}
I have a blog post written on it here: here.

Try using DialogFragment instead and on your dialogfragment layout include a LinearLayout for fragmentTransaction.
FragmentTransaction t = getSupportFragmentManager().beginTransaction();
String Tag = fragment.getClass().getSimpleName();
t.replace(R.id.llTabFragmentContainer, fragment, Tag);
t.commit();
fragment is your tab fragment.
cheeers