Develop Reference

Changing app to be Right to Left - Android

I am using Tab Activity in my android app, and I want to change the first tab that appears when I open my app, to be the last tab,but that the order of tabs will stay the same (swipe right to get to the first tab).
So in order to change the layout direction I added to the manifest
android:supportsRtl="true"
And to my Main Activity
android:layoutDirection="rtl"
What should I add / Change ?
Thank you very much
Edit: This is my Page Adapter Code:
#Override
public Fragment getItem(int index) {
switch (index) {
case 0:
//
return new Tab1Fragment();
case 1:
//
return new Tab2Fragment();
case 2:
//
return new Tab3Fragment();
case 3:
//
return new Tab4Fragment();
case 4:
//
return new Tab5Fragment();
}
return null;
}
And The Main Activity
public class MainActivity extends FragmentActivity implements
ActionBar.TabListener {
private ViewPager viewPager;
private TabsPagerAdapter mAdapter;
private ActionBar actionBar;
// Tab titles
private String[] tabs = { "Tab1", "Tab2", "Tab3","Tab4","Tab5" };
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// 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) {
}
public static boolean isRTL(Locale locale) {
final int directionality = Character.getDirectionality(locale.getDisplayName().charAt(0));
return directionality == Character.DIRECTIONALITY_RIGHT_TO_LEFT ||
directionality == Character.DIRECTIONALITY_RIGHT_TO_LEFT_ARABIC;
}

Use this to know if you are on RTL:
public static boolean isRTL(Locale locale) {
final int directionality = Character.getDirectionality(locale.getDisplayName().charAt(0));
return directionality == Character.DIRECTIONALITY_RIGHT_TO_LEFT ||
directionality == Character.DIRECTIONALITY_RIGHT_TO_LEFT_ARABIC;
}
Than just select the appropriate tab at the beginning.
like:
Locale current = getResources().getConfiguration().locale;
if(isRTL(current)) {
getActionBar().setSelectedNavigationItem(4);
}`else {
getActionBar().setSelectedNavigationItem(0);
}

How fix this ?? always asked to change constructor --> mAdapter = new TabsPagerAdapter(getFragmentManager());

I have 3 class
Main Class
Fragment (Pager)
Fragment Adapter
but, in fragment, there's problem, anybody can help me ??
public class AttractionFragment extends Fragment implements ActionBar.TabListener {
private ViewPager viewPager;
private TabsPagerAdapter mAdapter;
private ActionBar actionBar;
// Tab titles
private String[] tabs = { "Solo", "Karanganyar", "Sukoharjo" };
public AttractionFragment(){}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_attraction, container, false);
// Initilization
viewPager = (ViewPager) rootView.findViewById(R.id.pager);
actionBar = getActivity().getActionBar();
//This my problem
mAdapter = new TabsPagerAdapter(getFragmentManager());
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) {
// TODO Auto-generated method stub
}
#Override
public void onTabSelected(Tab tab, FragmentTransaction ft) {
// TODO Auto-generated method stub
// on tab selected
// show respected fragment view
viewPager.setCurrentItem(tab.getPosition());
}
#Override
public void onTabUnselected(Tab tab, FragmentTransaction ft) {
// TODO Auto-generated method stub
}
}
and this my adapter class
public class TabsPagerAdapter extends FragmentStatePagerAdapter {
public TabsPagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int index) {
switch (index) {
case 0:
// Top Rated fragment activity
return new SoloAttractionFragment();
case 1:
// Games fragment activity
return new KaranganyarAttractionFragment();
case 2:
// Movies fragment activity
return new SukoharjoAttractionFragment();
}
return null;
}
#Override
public int getCount() {
// get item count - equal to number of tabs
return 3;
}
}

You are using FragmentStatePagerAdapter`.
http://developer.android.com/reference/android/support/v4/app/FragmentStatePagerAdapter.html
You may also want to check
Does the Android ICS API have a native equivalent to ViewPager support lib?
You need to change a lot of things.
In Activity
public class MainActivity extends ActionBarActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.custom_view);
AttractionFragment newFragment = new AttractionFragment();
FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
transaction.replace(R.id.container, newFragment);
transaction.addToBackStack(null);
transaction.commit();
}
}
AttractionFragment.java
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentTransaction;
import android.support.v4.view.ViewPager;
import android.support.v7.app.ActionBar;
import android.support.v7.app.ActionBarActivity;
import android.support.v7.app.ActionBar.Tab;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
public class AttractionFragment extends Fragment implements ActionBar.TabListener {
private ViewPager viewPager;
private TabsPagerAdapter mAdapter;
private ActionBar actionBar;
// Tab titles
private String[] tabs = { "Solo", "Karanganyar", "Sukoharjo","Sragen","Boyolali","Klaten","Wonogiri" };
public AttractionFragment(){}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.frag2, container, false);
// Initilization
viewPager = (ViewPager) rootView.findViewById(R.id.pager);
actionBar = ((ActionBarActivity) getActivity()).getSupportActionBar();
//This my problem
mAdapter = new TabsPagerAdapter(getActivity().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(AttractionFragment.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) {
// TODO Auto-generated method stub
}
#Override
public void onTabSelected(Tab tab, FragmentTransaction ft) {
// TODO Auto-generated method stub
// on tab selected
// show respected fragment view
viewPager.setCurrentItem(tab.getPosition());
}
#Override
public void onTabUnselected(Tab tab, FragmentTransaction ft) {
// TODO Auto-generated method stub
}
}
TabsPageAdapter
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentStatePagerAdapter;
public class TabsPagerAdapter extends FragmentStatePagerAdapter {
public TabsPagerAdapter(android.support.v4.app.FragmentManager fragmentManager) {
super(fragmentManager);
}
#Override
public Fragment getItem(int index) {
Fragment fragment = null;
switch (index) {
case 0:
// Top Rated fragment activity
fragment =new SoloAttractionFragment();
case 1:
fragment = new KaranganyarAttractionFragment();
case 2:
// Movies fragment activity
fragment = new SukoharjoAttractionFragment();
}
return fragment ;
}
#Override
public int getCount() {
// get item count - equal to number of tabs
return 3;
}
}
Snap

Please try to change
public TabsPagerAdapter(FragmentManager fm) {
super(fm);
}
with
public TabsPagerAdapter(android.app.FragmentManager.FragmentManager fm) {
super(fm);
}
Try not to use support fragment manager.
No it won't give error, as i have tried with below sample code.
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentStatePagerAdapter;
public class MainActivity extends FragmentStatePagerAdapter {
public MainActivity(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int arg0) {
return null;
}
#Override
public int getCount() {
return 0;
}
}

How do I start a new activity when a tab is clicked?

I have this class:
public class MainActivity extends ActionBarActivity implements TabListener{
#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);
ActionBar.Tab TestTab = actionBar.newTab().setText("The test");
ActionBar.Tab chatTab = actionBar.newTab().setText("Chat");
TestTab.setTabListener(this);
chatTab.setTabListener(this);
actionBar.addTab(TestTab);
actionBar.addTab(chatTab);
if (savedInstanceState == null) {
getSupportFragmentManager().beginTransaction()
.add(R.id.container, new PlaceholderFragment()).commit();
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater actionMenue = getMenuInflater();
actionMenue.inflate(R.menu.main_activity_bar, menu);
return super.onCreateOptionsMenu(menu);
}
#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();
if (id == R.id.action_settings) {
return true;
}
if (id == R.id.mapIcon) {
Intent displayTheMap = new Intent(this, Map.class);
startActivity(displayTheMap);
return true;
}
return super.onOptionsItemSelected(item);
}
/**
* A placeholder fragment containing a simple view.
*/
public static class PlaceholderFragment extends Fragment {
public PlaceholderFragment() {
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main, container, false);
return rootView;
}
}
public void showTheMap(View mainView){
Intent displayTheMap = new Intent(this, Map.class);
startActivity(displayTheMap);
}
#Override
public void onTabSelected(Tab tab, FragmentTransaction ft) {
// TODO Auto-generated method stub
}
#Override
public void onTabUnselected(Tab tab, FragmentTransaction ft) {
// TODO Auto-generated method stub
}
#Override
public void onTabReselected(Tab tab, FragmentTransaction ft) {
// TODO Auto-generated method stub
}
}
As you can see I have placed 2 tabs under the action bar. Now everything looks just fine, but, how do I execute a pair of code, when a tab is clicked? I mean, it is clear that I have to write my code here:
#Override
public void onTabSelected(Tab tab, FragmentTransaction ft) {
// TODO Auto-generated method stub
}
But how do I know wich tab is selected? Can someone give me a clue, because as a beginner, it is seems hard to understand. I know that I'm missing a small part here.

Use the below code
Please us the below code.
#Override
public void onTabSelected(Tab tab, FragmentTransaction arg1) {
int position = tab.getPosition();
switch(position){
case 0:
//code for test
break;
case 1:
//code for chat
break;
}
}

you can try this :
public class MainActivity extends TabActivity {
static TabHost mytabs;
mytabs = getTabHost();
mytabs.setOnTabChangedListener(new OnTabChangeListener() {
#Override
public void onTabChanged(String arg0) {
Log.i("***Selected Tab", "Im currently in tab with index::" + mytabs.getCurrentTab());
}
});

Generally I would solve this like in the official docs. Here is a link
What is suggested there is to implement a separate TabListener like this:
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;
}
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) {
// User selected the already selected tab. Usually do nothing.
}
}
And then add tabs like this:
Tab tab = actionBar.newTab()
.setText(R.string.artist)
.setTabListener(new TabListener<ArtistFragment>(this, "artist", ArtistFragment.class));
The class you give the listener in the constructor determines the class of the Fragment which will be opened if the tab is selected.

try this code
#Override
public void onTabSelected(Tab tab, FragmentTransaction ft) {
// TODO Auto-generated method stub
if(tab.getText().equals("The test"){
//the test tab is selected
}
else if(tab.getText().equals("Chat"){
// the chat tab is selected
}
}

Android/Java How do you add linear layout to fragment?

Im currently working on an app but I need help. How can I have it where you have a list where when you press an item it goes to its discription. An example can be found on this app
https://play.google.com/store/apps/details?id=com.actionbarsherlock.sample.fragments&feature=more_from_developer#?t=W251bGwsMSwxLDEwMiwiY29tLmFjdGlvbmJhcnNoZXJsb2NrLnNhbXBsZS5mcmFnbWVudHMiXQ..
how can i get what you get when you press layout.
I have the tabs but i cant get list. here's the main activity code.
public class MainActivity extends FragmentActivity implements ActionBar.TabListener {
/**
* The {#link android.support.v4.view.PagerAdapter} that will provide fragments for each of the
* sections. We use a {#link android.support.v4.app.FragmentPagerAdapter} derivative, which will
* keep every loaded fragment in memory. If this becomes too memory intensive, it may be best
* to switch to a {#link android.support.v4.app.FragmentStatePagerAdapter}.
*/
SectionsPagerAdapter mSectionsPagerAdapter;
/**
* The {#link ViewPager} that will host the section contents.
*/
ViewPager mViewPager;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// 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 action bar.
final ActionBar actionBar = getActionBar();
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
// 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
// listener for when this tab is selected.
actionBar.addTab(
actionBar.newTab()
.setText(mSectionsPagerAdapter.getPageTitle(i))
.setTabListener(this));
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
#Override
public void onTabUnselected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) {
}
#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 onTabReselected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) {
}
/**
* A {#link FragmentPagerAdapter} that returns a fragment corresponding to one of the primary
* sections of the app.
*/
public class SectionsPagerAdapter extends FragmentPagerAdapter {
public SectionsPagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int i) {
Fragment fragment = new DummySectionFragment();
Bundle args = new Bundle();
args.putInt(DummySectionFragment.ARG_SECTION_NUMBER, i + 1);
fragment.setArguments(args);
return fragment;
}
#Override
public int getCount() {
return 4;
}
#Override
public CharSequence getPageTitle(int position) {
switch (position) {
case 0: return getString(R.string.title_section1).toUpperCase();
case 1: return getString(R.string.title_section2).toUpperCase();
case 2: return getString(R.string.title_section3).toUpperCase();
case 3: return getString(R.string.title_section4).toUpperCase();
}
return null;
}
}
/**
* A dummy fragment representing a section of the app, but that simply displays dummy text.
*/
public static class DummySectionFragment extends Fragment {
public DummySectionFragment() {
}
public static final String ARG_SECTION_NUMBER = "section_number";
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
TextView textView = new TextView(getActivity());
textView.setGravity(Gravity.CENTER);
Bundle args = getArguments();
textView.setText(Integer.toString(args.getInt(ARG_SECTION_NUMBER)));
return textView;
}
}
}

I think you are looking for an out of the box solution. I had to do the same thing recently and I did not find an out of the box solution. What did I do? I created an invisible view with an alpha animation and when users click on my listview I start the animation and show the populated view with the contents.
There are other ways of doing this by creating a custom dialog and inflating the view from an xml file.
Easier is if you don't need interaction with the description view, then you can use a Toast with a modified view and set a time for your users to read.

Orientation doesn't change (Actionbar and ICS)

I have a problem with ICS and the Actionbar. At start, when i changed the orientation, it worked, but now when i change the orientation, i have this error :
Caused by: android.support.v4.app.Fragment$InstantiationException: Unable to instantiate fragment
com.descartes.application.MainActivity$DummySectionFragment:
make sure class name exists, is public, and has an empty constructor that is public
Caused by: java.lang.InstantiationException:
can't instantiate class com.descartes.application.MainActivity$DummySectionFragment;
no empty constructor
Here is the main code :
public class MainActivity extends FragmentActivity implements ActionBar.TabListener {
/**
* The {#link android.support.v4.view.PagerAdapter} that will provide fragments for each of the
* sections. We use a {#link android.support.v4.app.FragmentPagerAdapter} derivative, which will
* keep every loaded fragment in memory. If this becomes too memory intensive, it may be best
* to switch to a {#link android.support.v4.app.FragmentStatePagerAdapter}.
*/
SectionsPagerAdapter mSectionsPagerAdapter;
/**
* The {#link ViewPager} that will host the section contents.
*/
ViewPager mViewPager;
private static int SCAN = 1;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Loc lc = new LocImpl(this);
Localisation loc = lc.localiser();
System.out.println(loc.toString());
// 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 action bar.
final ActionBar actionBar = getActionBar();
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
// 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
// listener for when this tab is selected.
actionBar.addTab(
actionBar.newTab()
.setText(mSectionsPagerAdapter.getPageTitle(i))
.setTabListener(this));
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
// Ecouteurs qui correspondent à chaque bouton présent dans la page
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.menu_camera:
// app icon in action bar clicked; go home
Intent intent = new Intent(this, ScanBarActivity.class);
intent.putExtra("METHODE", "SCAN");
startActivityForResult(intent, SCAN);
return true;
default:
return super.onOptionsItemSelected(item);
}
}
public void onTabUnselected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) {
}
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());
}
public void onTabReselected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) {
}
/**
* A {#link FragmentPagerAdapter} that returns a fragment corresponding to one of the primary
* sections of the app.
*/
public class SectionsPagerAdapter extends FragmentPagerAdapter {
public SectionsPagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int i) {
Fragment fragment = new DummySectionFragment();
Bundle args = new Bundle();
args.putInt(DummySectionFragment.ARG_SECTION_NUMBER, i + 1);
fragment.setArguments(args);
return fragment;
}
#Override
public int getCount() {
return 4;
}
#Override
public CharSequence getPageTitle(int position) {
switch (position) {
case 0: return getString(R.string.title_section1).toUpperCase();
case 1: return getString(R.string.title_section2).toUpperCase();
case 2: return getString(R.string.title_section3).toUpperCase();
case 3: return getString(R.string.title_section4).toUpperCase();
}
return null;
}
}
/**
* A dummy fragment representing a section of the app, but that simply displays dummy text.
*/
public class DummySectionFragment extends Fragment {
public DummySectionFragment() {
}
public static final String ARG_SECTION_NUMBER = "section_number";
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
Bundle args = getArguments();
switch (args.getInt(ARG_SECTION_NUMBER)){
case 1:
return inflater.inflate(R.layout.page_accueil, container, false);
case 2:
break;
case 3:
break;
case 4:
break;
}
TextView textView = new TextView(getActivity());
textView.setGravity(Gravity.CENTER);
textView.setText(Integer.toString(args.getInt(ARG_SECTION_NUMBER)));
return textView;
}
}
}
I don't understand where is the error, so i ask to you, can you help me ?

Change
public class DummySectionFragment extends Fragment
to
public static class DummySectionFragment extends Fragment
(or move DummySectionFragment to a separate class file).