We Keep Coding

when moving from one fragment to other the elements of the former staying on screen

so i got one main activity that has a Tablayout and a ViewPager to present diffrent fragments.
when i move between the fragments with my Tablayout everything works good, but if i use a button to open fragment, when going back to the former fragment (by pushing the cancel button) the elements of the fragment i left staying on the screen (as in the picture).
i tried to use a method viewPager.setCurrentItem(0); in the fragment to go back to the homepage from the fragment instade of ft.replace(R.id.fragment_edit_reminder, new Main_Activity_fragment()).commit(); but it didn't moved back to my home fragment (with the repalce it does go back but as i saied the elements.
this is my main:
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final TabLayout tableLayout = findViewById(R.id.Tablayouting);
final ViewPager viewPager = findViewById(R.id.ViewPager);
PagerAdapter pagerAdapter = new
PagerAdapter(getSupportFragmentManager(),tableLayout.getTabCount());
viewPager.setAdapter(pagerAdapter);
tableLayout.addOnTabSelectedListener(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) {
}
});
}
}
this is the fragment:
public class edit_reminder_fragment extends Fragment implements View.OnClickListener {
private Button cancelButton;
public edit_reminder_fragment() {
// Required empty public constructor
}
/**
* Use this factory method to create a new instance of
* this fragment using the provided parameters.
*
* #return A new instance of fragment edit_reminder_fragment.
*/
public static edit_reminder_fragment newInstance() {
edit_reminder_fragment fragment = new edit_reminder_fragment();
Bundle args = new Bundle();
fragment.setArguments(args);
return fragment;
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (getArguments() != null) {
}
}
#RequiresApi(api = Build.VERSION_CODES.O)
public void onClick(View view)//TODO: make a utility method for switching fragments on the main_activity_fragment(see note).
{
switch (view.getId()) {//recognizing what button was pushed
case R.id.ButtonCancelReminder:
//region
FragmentTransaction ft = getFragmentManager().beginTransaction();
Main_Activity_fragment maf = new Main_Activity_fragment();
ft.replace(R.id.fragment_edit_reminder, maf).commit();
break;
//endregion
}
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_edit_reminder_fragment, container, false);
cancelButton = view.findViewById(R.id.ButtonCancelReminder);
cancelButton.setOnClickListener(this);
return view;
}
}
my pagerAdapted class:
public class PagerAdapter extends FragmentPagerAdapter {
//https://www.youtube.com/watch?v=HHd-Fa3DCng&ab_channel=MasterCoding
private int numOfTabs;
public PagerAdapter(FragmentManager fm, int numOfTabs) {
super(fm);
this.numOfTabs = numOfTabs;
}
#Override
public Fragment getItem(int position) {
switch (position) {
case 0:
return new Main_Activity_fragment();
case 1:
return new key_words_fragment();
case 2:
return new groups_and_points_fragment();
case 3:
return new Fragment_Past_Reminders();
case 4:
return new edit_reminder_fragment();
default:
return null;
}
}
#Override
public int getCount() {
return numOfTabs;
}
}
in the picture we see the home page fragment ,on it 3 buttons (cancel, save, Add a sub reminder) that stayed from a fragment that open when clicking on the ADD NEW REMINDER button (when clicking on cancel in the second fragment it's going back to the home page):

First, try the following as an adaper:
public class PagerAdapter extends
FragmentPagerAdapter {
private final ArrayList<Fragment> mFragments = new ArrayList<>();
private final ArrayList<String> mFragmentTitle = new ArrayList<>();
public PagerAdapter(FragmentManager mManager) {
super(mManager);
}
#Override
public Fragment getItem(int position) {
return mFragments.get(position);
}
#Override
public int getCount() {
return mFragments.size();
}
public void addFragment(Fragment fragment, String title) {
mFragments.add(fragment);
mFragmentTitle.add(title);
}
#Override
public CharSequence getPageTitle(int position) {
return mFragmentTitle.get(position);
}
public Fragment getFragment(int position) {
if (position < mFragments.size() && position >= 0) {
return mFragments.get(position);
}
return null;
}
}
Then in your MainActivity's onCreate, initialize the following:
mTabs = (TabLayout) findViewById(R.id.tabs);
mPager = (ViewPager) findViewById(R.id.view_pager);
mMainAdapter = new PagerAdapter( getSupportFragmentManager() );
setupContents();
Then the private method setupContents() as follows:
mMainAdapter.addFragment(new FragmentOne(), getResources().getString(R.string.tab_albums));
mMainAdapter.addFragment(new FragmentTwo(), getResources().getString(R.string.tab_songs));
mMainAdapter.addFragment(new FragmentThree(), getResources().getString(R.string.tab_playlists));
// you can add as many fragments as you wish
//just follow the previous method #mMainAdapter.addFragment
mPager.setAdapter(mMainAdapter);
mTabs.setupWithViewPager(mPager);
To get the current fragment:
public Fragment getCurrentFragment() {
return mMainAdapter.getFragment(mPager.getCurrentItem());
}
To check if the current fragment is FragmentOne:
private boolean isFragmentOne() {
return getCurrentFragment() instanceof FragmentOne;
}

How to change Activity title when a tab changes (SlidingTabLayout)

I have searched for like three days for a solution for this. I have tried a lot of methods but I couldn't get it right. (Or maybe I am doing something wrong where).
So, what I am trying to do is change the Activity title to the current tab name, each time I change the tab, the activity title should change too.
So I have a MainActivity where I have 3 Tabs and 3 different fragments for the tabs. Here the MainActivity:
public class MainActivity extends ActionBarActivity {
private Toolbar toolbar;
private ViewPager mPager;
private SlidingTabLayout mTabs;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
toolbar = (Toolbar) findViewById(R.id.app_bar);
setSupportActionBar(toolbar);
mPager = (ViewPager) findViewById(R.id.pager);
mPager.setAdapter(new CustomPagerAdapter(getSupportFragmentManager()));
mTabs = (SlidingTabLayout) findViewById(R.id.tabs);
mTabs.setDistributeEvenly(true);
mTabs.setViewPager(mPager);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
//Custom ViewPager for the tabs
class CustomPagerAdapter extends FragmentPagerAdapter {
String[] tabsTitles;
String vpPager;
public CustomPagerAdapter(FragmentManager fm) {
super(fm);
tabsTitles = getResources().getStringArray(R.array.tabTitles);
}
#Override
public Fragment getItem(int position) {
//if (position == 0){
// news_fragment news_fragment = new news_fragment();
// return news_fragment;
//}
if (position == 1){
login_fragment login_fragment = new login_fragment();
return login_fragment;
}
else if (position == 2){
about_fragment about_fragment = new about_fragment();
return about_fragment;
}
else {
news_fragment news_fragment = new news_fragment();
return news_fragment;
}
}
#Override
public CharSequence getPageTitle(int position) {
return tabsTitles[position];
}
#Override
public int getCount() {
return 3;
}
}
}
And I am using this SlidingTabLayout

Try this one :
viewpager
.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
#Override
public void onPageSelected(int position) {
// TODO Auto-generated method stub
actionBar.setTitle(tabsTitles[position]);
}
#Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
// TODO Auto-generated method stub
}
#Override
public void onPageScrollStateChanged(int pos) {
// TODO Auto-generated method stub
}
});

When you change activity. Firstlt onCreate method run. So in you onCreate get ActionBar and set its title.
EXAMPLE
ActionBar actionBar = getActionBar();
actionBar.setTitle("title");
Note : Change getActionBar() to getSupportActionBar() if you are using the support library for ActionBar.

Try this one too:
class CustomPagerAdapter extends FragmentPagerAdapter {
....
Toolbar toolbar;
public CustomPagerAdapter(FragmentManager fm, Toolbar toolbar) {
...
this.toolbar = toolbar;
}
#Override
public Fragment getItem(int position) {
toolbar.setTitle(getPageTitle(position));
...
}
...
}

Set a custom action bar in your activity by inflating some layout like(After Oncreate):
android.app.ActionBar bar = getActionBar();
bar.setBackgroundDrawable(new ColorDrawable(Color.parseColor("#ffffff")));
bar.setDisplayShowHomeEnabled(false);
bar.setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM);
bar.setCustomView(R.layout.homescreen_actionbar);
Take a TextView in your custom layout and in the onresume method of your fragment fetch its id using getactivity(), and set your title and iit will be working fine.

FragmentActivity to Fragment

I haven't found any question like this on here so I wanted to ask. Please keep in mind that I'm new to Fragments & FragmentActivity (not Android) and I don't really know how to work with them quite yet but I'm learning. My question is I want to know how to change from a FragmentActivity to a Fragment so I can incorporate it into my app seamlessly without any errors. The code I want to rid errors of is below
public class Work extends Fragment implements
ActionBar.TabListener {
private ViewPager viewPager;
private TabsPagerAdapter mAdapter;
private ActionBar actionBar;
// Tab titles
private String[] tabs = { "Tattoos", "Piercings", "Social Networks" };
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.our_work);
// Initilization
viewPager = (ViewPager) findViewById(R.id.pager);
actionBar = getActionBar();
mAdapter = new TabsPagerAdapter(getSupportFragmentManager());
viewPager.setAdapter(mAdapter);
actionBar.setHomeButtonEnabled(false);
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
// Adding Tabs
for (String tab_name : tabs) {
actionBar.addTab(actionBar.newTab().setText(tab_name)
.setTabListener(this));
}
/**
* on swiping the viewpager make respective tab selected
* */
viewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
#Override
public void onPageSelected(int position) {
// on changing the page
// make respected tab selected
actionBar.setSelectedNavigationItem(position);
}
#Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
}
#Override
public void onPageScrollStateChanged(int arg0) {
}
});
}
#Override
public void onTabReselected(Tab tab, FragmentTransaction ft) {
}
#Override
public void onTabSelected(Tab tab, FragmentTransaction ft) {
// on tab selected
// show respected fragment view
viewPager.setCurrentItem(tab.getPosition());
}
#Override
public void onTabUnselected(Tab tab, FragmentTransaction ft) {
}
}
I've tried 3 different ways of doing this by rearranging the code but nothing works. Please help me with this!
EDIT I've tried it this way now
public class Work extends Fragment implements
ActionBar.TabListener {
private ViewPager viewPager;
private TabsPagerAdapter mAdapter;
private ActionBar actionBar;
private String[] tabs = { "Tattoos", "Piercings", "Social Networks" };
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
rootView = inflater.inflate(R.layout.our_work, container, false);
// Initilization
viewPager = (ViewPager) findViewById(R.id.pager);
actionBar = getActionBar();
mAdapter = new TabsPagerAdapter(getSupportFragmentManager());
viewPager.setAdapter(mAdapter);
actionBar.setHomeButtonEnabled(false);
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
// Adding Tabs
for (String tab_name : tabs) {
actionBar.addTab(actionBar.newTab().setText(tab_name)
.setTabListener(this));
}
/**
* on swiping the viewpager make respective tab selected
* */
viewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
#Override
public void onPageSelected(int position) {
// on changing the page
// make respected tab selected
actionBar.setSelectedNavigationItem(position);
}
#Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
}
#Override
public void onPageScrollStateChanged(int arg0) {
}
});
}
return rootView;
}
#Override
public void onTabReselected(Tab tab, FragmentTransaction ft) {
}
#Override
public void onTabSelected(Tab tab, FragmentTransaction ft) {
// on tab selected
// show respected fragment view
viewPager.setCurrentItem(tab.getPosition());
}
#Override
public void onTabUnselected(Tab tab, FragmentTransaction ft) {
}
}

first of all;
a Fragment must be inside a FragmentActivity, that's the first rule,
a FragmentActivity is quite similar to a standart Activity that you already know, besides having some Fragment oriented methods
second thing about Fragments, is that there is one important method you MUST call, wich is onCreateView, where you inflate your layout, think of it as the setContentLayout
here is an example:
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
mView = inflater.inflate(R.layout.fragment_layout, container, false);
return mView;
}
and continu your work based on that mView, so to find a View by id, call mView.findViewById(..);
for the FragmentActivity part:
the xml part "must" have a FrameLayout in order to inflate a fragment in it
<FrameLayout
android:id="#+id/content_frame"
android:layout_width="match_parent"
android:layout_height="match_parent" >
</FrameLayout>
as for the inflation part
getSupportFragmentManager().beginTransaction().replace(R.id.content_frame, new YOUR_FRAGMENT, "TAG").commit();
begin with these, as there is tons of other stuf you must know about fragments and fragment activities, start of by reading something about it (like life cycle) at the android developer site

Replace a fragment above another fragment when dialog is clicked (viewpager)

I am trying to open a fragment, when a dialog is clicked inside another fragment. I am using ActionBarSherlock with Tab. My fragment is attached in the view pager. I have almost done the job. But I can't replace a new fragment inside a view pager. I got an error. I read the thread here. The solution isn't clear.
Error:
10-18 21:34:40.379: E/AndroidRuntime(19618): FATAL EXCEPTION: main
10-18 21:34:40.379: E/AndroidRuntime(19618):
java.lang.IllegalArgumentException: No view found for id 0x7f040032
(com.example.actionbartestwithsherlock:id/pager) for fragment
AllContactsFragment{41fd4ba0 #0 id=0x7f040032} 10-18 21:34:40.379:
E/AndroidRuntime(19618): at
android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:903)
I have three fragment associates with pager named FragmentTab1,FragmentTab2 & FragmentTab3.
My MainActivity & FragmentAdapter looks like below:
public class MainActivity extends SherlockFragmentActivity {
ActionBar.Tab Tab1, Tab2, Tab3, Tab4;
private Context context = this;
// view pager
// Declare Variables
ActionBar actionBar;
ViewPager mPager;
Tab tab;
FragmentAdapter mAdapter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// set application in portrait mode
ActivityHelper.initialize(this);
actionBar = getSupportActionBar();
actionBar.setDisplayShowHomeEnabled(true);
actionBar.setDisplayShowTitleEnabled(true);
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
// Locate ViewPager in activity_main.xml
mPager = (ViewPager) findViewById(R.id.pager);
// add an adapter to pager
mPager.setAdapter(new FragmentAdapter(getSupportFragmentManager(),
mPager, actionBar));
addActionBarTabs();
}
private void addActionBarTabs() {
String[] tabs = { "Tab 1", "Tab 2", "Tab 3" };
for (String tabTitle : tabs) {
ActionBar.Tab tab = actionBar.newTab().setText(tabTitle)
.setTabListener(tabListener);
actionBar.addTab(tab);
}
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
}
private ActionBar.TabListener tabListener = new ActionBar.TabListener() {
#Override
public void onTabSelected(ActionBar.Tab tab, FragmentTransaction ft) {
mPager.setCurrentItem(tab.getPosition());
}
#Override
public void onTabUnselected(ActionBar.Tab tab, FragmentTransaction ft) {
}
#Override
public void onTabReselected(ActionBar.Tab tab, FragmentTransaction ft) {
}
};
class FragmentAdapter extends FragmentPagerAdapter implements
ViewPager.OnPageChangeListener {
private ViewPager mViewPager;
final int TOTAL_PAGES = 3;
public FragmentAdapter(FragmentManager fm, ViewPager pager,
ActionBar actionBar) {
super(fm);
this.mViewPager = pager;
this.mViewPager.setOnPageChangeListener(this);
}
#Override
public Fragment getItem(int position) {
switch (position) {
case 0:
return FragmentTab1.newInstance();
case 1:
return FragmentTab2.newInstance();
case 2:
return FragmentTab3.newInstance();
default:
throw new IllegalArgumentException(
"The item position should be less or equal to:"
+ TOTAL_PAGES);
}
}
#Override
public int getCount() {
return TOTAL_PAGES;
}
#Override
public void onPageScrollStateChanged(int arg0) {
}
#Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
}
#Override
public void onPageSelected(int position) {
actionBar.setSelectedNavigationItem(position);
}
}
}
Now, Inside my first tab FragmentTab1, I open a customized dialog when a button clicks. I want to replace new fragment AllContactsFragment in FragmentTab1 when the dialog options are selected.
FragmentTab1 fragment class:
public class FragmentTab1 extends SherlockFragment implements OnClickListener {
Button btnTest;
ViewPager pager;
LinearLayout layoutBlockNumbers;
LinearLayout layoutContact, layoutCallLog, layoutSMSLog, layoutManually;
Context context;
CustomizedDialog dialog;
private static final int CONTACT_PICKER_RESULT = 1001;
private static final String DEBUG_TAG = "Contact List";
private static final double RESULT_OK = -1;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragmenttab1, container,
false);
layoutBlockNumbers = (LinearLayout) rootView
.findViewById(R.id.layoutAddBlockNumbers);
layoutBlockNumbers.setOnClickListener(this);
return rootView;
}
#Override
public void onClick(View v) {
if (v == layoutCallLog) {
dialog.dismiss();
// want to replace new fragment at position 0 in pager
// problem is here ??? how to open new fragmnet
Fragment allContactsFragment = AllContactsFragment.newInstance();
FragmentTransaction transaction = getChildFragmentManager()
.beginTransaction();
transaction.addToBackStack(null);
transaction.replace(R.id.pager, allContactsFragment).commit();
}
if (v == layoutBlockNumbers) {
// open a dialog
showDialog();
} else if (v == layoutContact) {
openContactList();
dialog.dismiss();
} else if (v == layoutSMSLog) {
}
}
#Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
setUserVisibleHint(true);
}
// open a dialog
private void showDialog() {
dialog = new CustomizedDialog(getActivity());
dialog.setContentView(R.layout.dialog_add_number_type);
dialog.setTitle("Add Black List Number");
//initialize all linear layouts in dialog
layoutCallLog = (LinearLayout) dialog.findViewById(R.id.layoutCallLog);
layoutContact = (LinearLayout) dialog.findViewById(R.id.layoutContact);
layoutSMSLog = (LinearLayout) dialog.findViewById(R.id.layoutSMSLog);
layoutManually = (LinearLayout) dialog
.findViewById(R.id.layoutManually);
// add listener to several linear layout
layoutContact.setOnClickListener(this);
layoutCallLog.setOnClickListener(this);
layoutSMSLog.setOnClickListener(this);
layoutManually.setOnClickListener(this);
dialog.show();
}
public static Fragment newInstance() {
Fragment f = new FragmentTab1();
return f;
}
}
activity_main.xml looks like below :
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<android.support.v4.view.ViewPager
android:id="#+id/pager"
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
</android.support.v4.view.ViewPager>
</RelativeLayout>
Can anybody can help me to solve this issue? Sorry for the massive code.

I'm not sure you can do things the way you want to. A ViewPager is not set up the same way a normal container/fragment set up would be. In a ViewPager you're not using fragment transactions to add fragments but rather an adapter that loads instances of fragments from a backing list.
Replacing the fragment would then work as follows:
(1) Create an instance of the fragment you want to add
(2) Add that fragment to the list that is backing your PagerAdapter
(3) Display the new fragment
(4) Remove the old one
The problem with implementing this in your current project is the set up of your adapter. Currently you are using a switch statment that can only return a fixed number of fragments. Your adapter should be set up something like this.
class MyPageAdapter extends FragmentPagerAdapter{
private List<Fragment> fragments
public MyPageAdapter(FragmentManager fm, List<Fragment> fragments) {
super(fm);
this.fragments = fragments;
}
#Override
public Fragment getItem(int position) {
return this.fragments.get(position);
}
#Override
public int getCount() {
return this.fragments.size();
}
}
Then you can just add a method to your adapter class to add or remove new fragments. If you know the index of the fragment you want to replace accomplishing this should be pretty easy. All you have to do is create a new instance of the contacts fragment, add it to your array or list. This Post explains how a ViewPager handles the adding/removing of new content and how to ensure your new fragment is displayed.

After I read this post I solved the answer.
I just add an ID android:id="#+id/fragmentTabLayout1 to top layout of my fragmenttab1.xml . Then call
new fragment as usual:
Fragment allContactsFragment = AllContactsFragment.newInstance();
FragmentTransaction transaction = getChildFragmentManager()
.beginTransaction();
transaction.addToBackStack(null);
// use this id to replace new fragment
transaction.replace(R.id.fragmentTabLayout1, allContactsFragment).commit();

submenu in ActionBar Tabs android code

i've used the existing model of Tab menu (the action bar) , and now i'm having problem adding submenu to each tab , how can i do that ?
this is my code :
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Set up the action bar.
final ActionBar actionBar = getActionBar();
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
// Create the adapter that will return a fragment for each of the three
// primary sections of the app.
mSectionsPagerAdapter = new SectionsPagerAdapter(
getSupportFragmentManager());
// Set up the ViewPager with the sections adapter.
mViewPager = (ViewPager) findViewById(R.id.pager);
mViewPager.setAdapter(mSectionsPagerAdapter);
// When swiping between different sections, select the corresponding
// tab. We can also use ActionBar.Tab#select() to do this if we have
// a reference to the Tab.
mViewPager
.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
#Override
public void onPageSelected(int position) {
actionBar.setSelectedNavigationItem(position);
}
});
// For each of the sections in the app, add a tab to the action bar.
for (int i = 0; i < mSectionsPagerAdapter.getCount(); i++) {
// Create a tab with text corresponding to the page title defined by
// the adapter. Also specify this Activity object, which implements
// the TabListener interface, as the callback (listener) for when
// this tab is selected.
Tab tab = actionBar.newTab();
tab.setText(mSectionsPagerAdapter.getPageTitle(i));
tab.setTabListener(this);
actionBar.addTab(tab);
}
}
this is menu/main.xml
<menu xmlns:android="http://schemas.android.com/apk/res/android" >
<item
android:id="#+id/action_settings"
android:orderInCategory="100"
android:showAsAction="never"
android:title="#string/action_settings">
</item>
</menu>
here is the rest of code :
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
#Override
public void onTabSelected(ActionBar.Tab tab,
FragmentTransaction fragmentTransaction) {
// When the given tab is selected, switch to the corresponding page in
// the ViewPager.
mViewPager.setCurrentItem(tab.getPosition());
}
/**
*
*/
#Override
public void onTabUnselected(ActionBar.Tab tab,
FragmentTransaction fragmentTransaction) {
}
#Override
public void onTabReselected(ActionBar.Tab tab,
FragmentTransaction fragmentTransaction) {
}
/**
* A {#link FragmentPagerAdapter} that returns a fragment corresponding to
* one of the sections/tabs/pages.
*/
public class SectionsPagerAdapter extends FragmentPagerAdapter {
public SectionsPagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int position) {
// getItem is called to instantiate the fragment for the given page.
// Return a DummySectionFragment (defined as a static inner class
// below) with the page number as its lone argument.
Fragment fragment = new DummySectionFragment();
Bundle args = new Bundle();
args.putInt(DummySectionFragment.ARG_SECTION_NUMBER, position + 1);
fragment.setArguments(args);
return fragment;
}
#Override
public int getCount() {
// Show 3 total pages.
return 3;
}
#Override
public CharSequence getPageTitle(int position) {
Locale l = Locale.getDefault();
switch (position) {
case 0:
return getString(R.string.title_section1).toUpperCase(l);
case 1:
return getString(R.string.title_section2).toUpperCase(l);
case 2:
return getString(R.string.title_section3).toUpperCase(l);
}
return null;
}
}
/**
* A dummy fragment representing a section of the app, but that simply
* displays dummy text.
*/
public static class DummySectionFragment extends Fragment {
/**
* The fragment argument representing the section number for this
* fragment.
*/
public static final String ARG_SECTION_NUMBER = "section_number";
public DummySectionFragment() {
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main_dummy,
container, false);
TextView dummyTextView = (TextView) rootView
.findViewById(R.id.section_label);
dummyTextView.setText(Integer.toString(getArguments().getInt(
ARG_SECTION_NUMBER)));
return rootView;
}
}
i'm waiting your answers , thanks

Assuming all your tabs having their own class extending fragments, you simply include:
#Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.yourmenu, menu);
this.menu = menu;
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle item selection
}
Edit: I just saw you are looking for a sub menu. Try this tutorial: http://www.mysamplecode.com/2011/07/android-options-menu-submenu-group.html
and take a look at "Options Menu Layout optionmenu.xml"
You will need to use fragments for each Tab.
Your MainActivity- Class:
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//instantiate Fragments / Tabs
Fragment tabonefragment = new TabOneFragment();
Fragment tabtwofragment = new TabTwoFragment();
PagerAdapter mPagerAdapter = new PagerAdapter(getSupportFragmentManager());
mPagerAdapter.addFragment(tabonefragment);
mPagerAdapter.addFragment(tabtwofragment);
// Set up the ViewPager with the sections adapter.
mViewPager = (ViewPager) findViewById(R.id.pager);
mViewPager.setAdapter(mSectionsPagerAdapter);
// When swiping between different sections, select the corresponding
// tab. We can also use ActionBar.Tab#select() to do this if we have
// a reference to the Tab.
mViewPager
.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
#Override
public void onPageSelected(int position) {
actionBar.setSelectedNavigationItem(position);
}
});
//adding tabs to your action bar
ActionBar ab = getActionBar();
ab.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
Tab tab1 = ab.newTab().setText("tabonetext")
.setTabListener(new TabListener<TabOneFragment>(
this, "tab_one", TabOneFragment.class));
Tab tab2 = ab.newTab().setText("tabtwotext")
.setTabListener(new TabListener<TabTwoFragment>(
this, "tab_two", TabTwoFragment.class));
ab.addTab(tab1);
ab.addTab(tab2);
}
public static class TabListener<T extends Fragment> implements ActionBar.TabListener {
private Fragment mFragment;
private final Activity mActivity;
private final String mTag;
private final Class<T> mClass;
/** Constructor used each time a new tab is created.
* #param activity The host Activity, used to instantiate the fragment
* #param tag The identifier tag for the fragment
* #param clz The fragment's Class, used to instantiate the fragment
*/
public TabListener(Activity activity, String tag, Class<T> clz) {
mActivity = activity;
mTag = tag;
mClass = clz;
}
/* The following are each of the ActionBar.TabListener callbacks */
public void onTabSelected(Tab tab, FragmentTransaction ft) {
// Check if the fragment is already initialized
if (mFragment == null) {
// If not, instantiate and add it to the activity
mFragment = Fragment.instantiate(mActivity, mClass.getName());
ft.add(android.R.id.content, mFragment, mTag);
} else {
// If it exists, simply attach it in order to show it
ft.attach(mFragment);
}
}
public void onTabUnselected(Tab tab, FragmentTransaction ft) {
if (mFragment != null) {
// Detach the fragment, because another one is being attached
ft.detach(mFragment);
}
}
public void onTabReselected(Tab tab, FragmentTransaction ft) {
}
public void onTabReselected(Tab arg0,
android.app.FragmentTransaction arg1)
{
}
public void onTabSelected(Tab arg0, android.app.FragmentTransaction arg1)
{
mViewPager.setCurrentItem(arg0.getPosition());
}
public void onTabUnselected(Tab arg0,
android.app.FragmentTransaction arg1)
{
}
}
public class PagerAdapter extends FragmentPagerAdapter {
private final ArrayList<Fragment> mFragments = new ArrayList<Fragment>();
public PagerAdapter(FragmentManager manager) {
super(manager);
}
public void addFragment(Fragment fragment) {
mFragments.add(fragment);
notifyDataSetChanged();
}
#Override
public int getCount() {
return mFragments.size();
}
#Override
public Fragment getItem(int position) {
return mFragments.get(position);
}
}
Your Fragment class:
public class TabOneFragment extends Fragment {
#Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState)
{
//inflate your layout from a tab_one_layout.xml file (or use the same xml of your R.layout.activitiy_main if you want)
View view = inflater.inflate(R.layout.tab_one_layout, container, false);
return view;
}
}
//HERE: individual options menu of TabOne
#Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.yourmenu, menu);
this.menu = menu;
//create some submenu if you want
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle item selection
}
That should do. The same/similiar code also for TabTwo ofc.

I think i should edit this code :
public static class DummySectionFragment extends Fragment {
/**
* The fragment argument representing the section number for this
* fragment.
*/
public static final String ARG_SECTION_NUMBER = "section_number";
public DummySectionFragment() {
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main_dummy,
container, false);
TextView dummyTextView = (TextView) rootView
.findViewById(R.id.section_label);
dummyTextView.setText(Integer.toString(getArguments().getInt(
ARG_SECTION_NUMBER)));
return rootView;
}
}
and the XML file and replacte textview with a menu ?
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context=".MainActivity$DummySectionFragment" >
<TextView
android:id="#+id/section_label"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</RelativeLayout>