I have an app which has navigation type fixed tabs + swipe. And I have created two tabs using two fragments, fragment 1 and fragment 2. It's working fine. Now again I need to create 3 tabs for the fragment 1. How can this be acheived??
This is my MainActivity:
public class MainActivity extends FragmentActivity implements ActionBar.TabListener {
private ViewPager viewPager;
private TabsPagerAdapter mAdapter;
private ActionBar actionBar;// Tab titles
private String[] tabs = { "Flights","My Bookings" };
#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) {
}
}
This is my TabsPagerAdapter class:
public class TabsPagerAdapter extends FragmentPagerAdapter {
public TabsPagerAdapter(FragmentManager fm) {
super(fm);
// TODO Auto-generated constructor stub
}
#Override
public Fragment getItem(int index) {
// TODO Auto-generated method stub
switch (index) {
case 0:
return new Flight();
case 1:
return new Hotel();
}
return null;
}
#Override
public int getCount() {
// TODO Auto-generated method stub
return 2;
}
}
This is my mainactivity.xml file
<android.support.v4.view.ViewPager xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/pager"
android:layout_width="match_parent"
android:layout_height="match_parent">
</android.support.v4.view.ViewPager>
Then there are two fragment activities Flight and Hotel in my app. Now Again I need to add tabs to the fragment activity flight. How can this be acheived?? Can someone please help me out...
Edit: This is an image from net. This is what I exactly want..
Add another Fragment Class Like this:
#Override
public Fragment getItem(int index) {
// TODO Auto-generated method stub
switch (index) {
case 0:
return new Flight();
case 1:
return new Hotel();
case 2:
return new Thirdfragment();
}
return null;
}
#Override
public int getCount() {
// TODO Auto-generated method stub
return 3;
}
And Dont forget to add third tab in MainActivity class
private String[] tabs = { "Flights","My Bookings",ThirdFragment };
your layout of flight fragment must be changed to it:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:descendantFocusability="blocksDescendants"
>
<TabHost
android:id="#+id/TabHost01"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<TabWidget
android:id="#android:id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="0" />
<FrameLayout
android:id="#android:id/tabcontent"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<anylayout
android:id="#+id/tab_1"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
</anylayout>
<anylayout
android:id="#+id/tab_2"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:dividerHeight="3dp" >
<anylayout
android:id="#+id/tab_3"
android:layout_width="match_parent"
android:layout_height="match_parent">
</anylayout>
</FrameLayout>
</LinearLayout>
</TabHost>
</LinearLayout>
and in onCreatView :
mTabHost = (TabHost) v.findViewById(R.id.TabHost01);
mTabHost.setup();
mTabHost.addTab(mTabHost.newTabSpec("tab_1")
.setIndicator("View1_Child1")
.setContent(R.id.tab_1));
mTabHost.addTab(mTabHost.newTabSpec("tab_2")
.setIndicator("View2_Child2")
.setContent(R.id.tab_2));
Related
i'm trying to get this pageviewer with fragments to work however i'm stumbled on a problem where the view stays on screen on swipe. Ideally, i'd want it to only be on a particular layout yet i'm not too sure why it "carries over" to other screens (it also stays on screen during the transition between fragments).
Any feedback will be appreciated!
Link to Imgur Screenshots
Main:
private void initUI()
{
// ---------Page Viewer with Fragments -----------
viewPager = (ViewPager) findViewById(R.id.pager);
actionBar = getSupportActionBar();
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));
}
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 onTabSelected(ActionBar.Tab tab, FragmentTransaction ft) {
viewPager.setCurrentItem(tab.getPosition());
}
#Override
public void onTabUnselected(ActionBar.Tab tab, FragmentTransaction ft) {
}
#Override
public void onTabReselected(ActionBar.Tab tab, FragmentTransaction ft) {
}
}
Adapter:
public class TabsPagerAdapter extends FragmentPagerAdapter {
public TabsPagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int index) {
switch (index) {
case 0:
// Main Frag
return new Fragment1();
case 1:
// Second Frag
return new Fragment2();
case 2:
// Third Frag
return new Fragment3();
}
return null;
}
#Override
public int getCount() {
return 3;
}
}
Fragment classes are basically this:
public class Fragment1 extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.main, container, false);
return rootView;
}
}
Main Layout:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<android.support.v4.view.ViewPager
android:id="#+id/pager"
android:layout_width="match_parent"
android:layout_height="match_parent">
</android.support.v4.view.ViewPager>
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</RelativeLayout>
The EditText is in the main layout, the same layout that the ViewPager is in. It should be inflated within the tab. You'll need to create a separate layout for each tab.
Main layout
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<android.support.v4.view.ViewPager
android:id="#+id/pager"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</RelativeLayout>
layout_fragment_1.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</RelativeLayout>
Then you need to inflate the new layout in fragment 1.
View rootView = inflater.inflate(R.layout.layout_fragment_1, container, false);
return rootView;
This is MyTabActivity.java class
public class MyTabActivity extends FragmentActivity {
ViewPager Tab;
TabPagerAdapter TabAdapter;
ActionBar actionBar;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.tab_layout);
TabAdapter = new TabPagerAdapter(getSupportFragmentManager());
Tab = (ViewPager)findViewById(R.id.pager);
Tab.setOnPageChangeListener(
new ViewPager.SimpleOnPageChangeListener() {
#Override
public void onPageSelected(int position) {
actionBar = getActionBar();
actionBar.setSelectedNavigationItem(position); }
});
Tab.setAdapter(TabAdapter);
actionBar = getActionBar();
//Enable Tabs on Action Bar
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
ActionBar.TabListener tabListener = new ActionBar.TabListener(){
#Override
public void onTabReselected(ActionBar.Tab tab, FragmentTransaction ft) {
Toast.makeText(getBaseContext(), "Tab ReSelected: " + tab.getPosition(), Toast.LENGTH_SHORT).show();
}
#Override
public void onTabSelected(ActionBar.Tab tab, FragmentTransaction ft) {
Tab.setCurrentItem(tab.getPosition());
Toast.makeText(getBaseContext(), "Tab Selected: " + tab.getPosition(), Toast.LENGTH_SHORT).show();
}
#Override
public void onTabUnselected(ActionBar.Tab tab, FragmentTransaction ft) {
Toast.makeText(getBaseContext(), "Tab UnSelected: " + tab.getPosition(), Toast.LENGTH_SHORT).show();
}};
//Add New Tab
actionBar.addTab(actionBar.newTab().setText("Tab1").setTabListener(tabListener));
actionBar.addTab(actionBar.newTab().setText("Tab2").setTabListener(tabListener));
}
}
This is TabPagerAdapter.java
public class TabPagerAdapter extends FragmentStatePagerAdapter {
public TabPagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int i) {
switch (i) {
case 0:
return new Tab1Activity();
case 1:
return new Tab2Activity();
}
return null;
}
#Override
public int getCount() {
//No of Tabs
return 2;
}
}
public class Tab1Activity extends Fragment {
#Override
public View onCreateView(final LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.activity_main, container, false);
/// code to display LIstView
.
.
//here i m trying to invoke other tab on click of list item...this where i stuck
listView.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> adptr, View view, int pos,
long id) {
/// this code here is not working for me
Tab2Activity myDetailFragment = new Tab2Activity ();
Bundle bundle = new Bundle();
bundle.putString("KEY_DETAIL", "Hi");
myDetailFragment.setArguments(bundle);
FragmentTransaction fragmentTransaction = getFragmentManager().beginTransaction();
fragmentTransaction.attach(myDetailFragment);
fragmentTransaction.addToBackStack(null);
fragmentTransaction.commit();
}});
return monthlyView;
}
}
This is Tab2Activity.java
public class Tab2Activity extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View dailyView = inflater.inflate(R.layout.activity_mian, container, false);
// displaying list item based on the input from tab1
return dailyView;
}
}
This is activity_main.xml
<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" >
<ListView
android:id="#+id/list_View1"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
</ListView>
</RelativeLayout>
This is pager.xml
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<!-- The main content view starts -->
<LinearLayout
android:id="#+id/content_frame"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<android.support.v4.view.ViewPager
android:id="#+id/pager"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
</android.support.v4.widget.DrawerLayout>
Now my question is, i am displaying a list of item using listview in tab1
and i want to invoke tab2 when user click on the list item of tab1
and display some data on tab2 by sending some data from tab1 to tab2.
I an mew to android, please guide me with proper solutions. Thanks :)
Use viewPager.setCurrentItem(position, true); to switch between tabs.
Then, use this to get the current fragment.
Then you call a public method of that fragment that you create to do whatever you want.
I want to change the style of the tabhost tabbar ,same like actionbar tababar, I have tried to show in Figure.How can i do that ? PLease Help me thanks in advance.
I want to change the style from (1) to (2).
My code is below.
Class
package com.android.timeline;
#SuppressLint({ "SimpleDateFormat", "NewApi" })
public class MainActivity extends FragmentActivity implements ActionBar.TabListener
{
public int width;
private ActionBar actionBar;
private TextView actionBarTitle;
private TabPagerAdapter TabAdapter;
ArrayList<Fragment> fragmentlist = new ArrayList<Fragment>();
private ViewPager Tab;
private String[] tabs = { "About", "Watch Next", "Related" };
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
fragmentlist.add(new AboutDetail());
fragmentlist.add(new WatchNextDetail());
fragmentlist.add(new RelatedDetail());
currentAboutDetail = fragmentlist.get(0);
TabAdapter = new TabPagerAdapter(getSupportFragmentManager());
Tab = (ViewPager) findViewById(R.id.pager);
Tab.setOffscreenPageLimit(2);
pagerchangeListener();
}
private void pagerchangeListener() {
Tab.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
#Override
public void onPageSelected(int position) {
actionBar.setSelectedNavigationItem(position);
}
});
Tab.setAdapter(TabAdapter);
}
#Override
public void onSaveInstanceState(Bundle savedInstanceState) {
super.onSaveInstanceState(savedInstanceState);
savedInstanceState.putInt("mMyCurrentPosition", Tab.getCurrentItem());
}
#Override
public void onRestoreInstanceState(Bundle savedInstanceState) {
super.onRestoreInstanceState(savedInstanceState);
mMyCurrentPosition = savedInstanceState.getInt("mMyCurrentPosition");
// where mMyCurrentPosition should be a public value in your activity.
}
#Override
public void onCreateContextMenu(ContextMenu menu, View v,
ContextMenuInfo menuInfo) {
super.onCreateContextMenu(menu, v, menuInfo);
}
public class TabPagerAdapter extends FragmentStatePagerAdapter {
public TabPagerAdapter(FragmentManager fm) {
super(fm);
// TODO Auto-generated constructor stub
}
#Override
public Fragment getItem(int i) {
Log.e("LOG", "Position || " + i);
return fragmentlist.get(i);
}
#Override
public int getCount() {
return fragmentlist.size(); // No of Tabs
}
#Override
public void destroyItem(View container, int position, Object object) {
}
}
#Override
public void onTabSelected(android.app.ActionBar.Tab tab,
FragmentTransaction ft) {
// TODO Auto-generated method stub
Tab.setCurrentItem(tab.getPosition());
}
#Override
public void onTabUnselected(android.app.ActionBar.Tab tab,
FragmentTransaction ft) {
// TODO Auto-generated method stub
}
#Override
public void onTabReselected(android.app.ActionBar.Tab tab,
FragmentTransaction ft) {
// TODO Auto-generated method stub
}
}
xml
<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:orientation="vertical"
tools:context=".MainActivity" >
<TabHost
android:id="#android:id/tabhost"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TabWidget
android:id="#android:id/tabs"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="0"
android:orientation="horizontal" />
<FrameLayout
android:id="#android:id/tabcontent"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_weight="0" />
<android.support.v4.view.ViewPager
android:id="#+id/pager"
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight="1" />
</LinearLayout>
</TabHost>
</RelativeLayout>
Try like below. Please go through FragmentTabHost and ViewPager with FragmentPagerAdapter
main.xml
<android.support.v4.app.FragmentTabHost
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/tabhost"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<TabWidget
android:id="#+id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="0"
android:orientation="horizontal" />
<FrameLayout
android:id="#+id/tabFrameLayout"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1" />
</LinearLayout>
</android.support.v4.app.FragmentTabHost>
MainActivity.java
public class MainActivity extends FragmentActivity {
private FragmentTabHost mTabHost;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mTabHost = (FragmentTabHost) findViewById(R.id.tabhost);
mTabHost.setup(this, getSupportFragmentManager(), R.id.tabFrameLayout);
mTabHost.addTab(
mTabHost.newTabSpec("tab1").setIndicator("Tab 1",
getResources().getDrawable(android.R.drawable.star_on)),
FragmentTab1.class, null);
mTabHost.addTab(
mTabHost.newTabSpec("tab2").setIndicator("Tab 2",
getResources().getDrawable(android.R.drawable.star_on)),
FragmentTab2.class, null);
}
}
for this task refer this link http://wptrafficanalyzer.in/blog/implement-swiping-between-tabs-with-viewpager-in-action-bar-using-sherlock-library/
I am trying to get a fragment with three tabs displayed using ViewPager. Initially I used to instantiate the fragment from the Activity using FragmentMgr, this worked fine. When I converted this navigation using ViewPager, this Fragment is no longer displayed.
MainActivity.java
When I initiate Fragment like this, it gets displayed. eg:
LaunchListFragment fragment = new LaunchListFragment();
fragment.newInstance(LIST_TYPE);
getSupportFragmentManager().beginTransaction()
.add(R.id.item_detail_container,
fragment).commit();
I tried this change above code to make use of ViewPager as follows:
mViewPager = (ViewPager) findViewById(R.id.pager);
mViewPager.setAdapter(new LaunchPageAdapter(getSupportFragmentManager(),LIST_TYPE));
mViewPager.setCurrentItem(0);
where LaunchPageAdapter calls LaunchListFragment.
LaunchPageAdapter.java
public class LaunchPageAdapter extends FragmentPagerAdapter {
private static String select="";
public LaunchPageAdapter(FragmentManager fm, String type) {
super(fm);
select=type;
}
#Override
public Fragment getItem(int position) {
switch (position) {
case 0:
return LaunchListFragment.newInstance(select);
case 1:
return AddTeamFragment.newInstance();
}
return null;
}
#Override
public int getCount() {
// TODO Auto-generated method stub
return 2;
}
Here is LaunchListFragment.java
public class LaunchListFragment extends ListFragment implements ActionBar.TabListener {
public static String LIST_TYPE = "invalid";
GenericListData g_data[] = null;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View result = inflater.inflate(R.layout.fragment_launch_list,
container, false);
setActionTabs();
setList();
return (result);
}
public static Fragment newInstance(String type) {
Fragment frag = new LaunchListFragment();
Bundle args = new Bundle();
LIST_TYPE=type;
args.putString(LIST_TYPE, type);
frag.setArguments(args);
return (frag);
}
This is main.xml layout used by MainActivity
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools= "match_parent"
android:layout_height="match_parent"
android:layout_marginLeft="16dp"
android:layout_marginRight="16dp"
android:baselineAligned="false"
android:divider="?android:attr/dividerHorizontal"
android:orientation="horizontal"
android:showDividers="middle"
tools:context=".MainActivity" >
<fragment
android:id="#+id/item_list"
android:name="com.teammanager.ItemListFragment"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
tools:layout="#android:layout/list_content" />
<FrameLayout
android:id="#+id/item_detail_container"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="3" >
<android.support.v4.view.ViewPager
android:id="#+id/pager"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1" />
</FrameLayout>
fragment_launch_list.xml used by LaunchListFragment
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical" >
<ListView
android:id="#android:id/list"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:drawSelectorOnTop="false" >
</ListView>
<TextView
android:id="#+id/itemName"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_alignParentBottom="true"
android:layout_alignParentTop="true"
android:layout_marginBottom="5dp"
android:layout_marginTop="5dp"
android:gravity="center_vertical"
android:textColor="#000000"
android:textSize="22dp"
android:textStyle="bold" />
When I debug this, I can see LaunchListFragment is getting instantiated, onCreate and onCreate View is called, it just won't get displayed. :(
Can anyone here let me know if I am missing anything here in my ViewPager implementation?
Update
When I called LaunchListFragment without using Viewpager, I set the content view first and passed R.id.item_detail_container which is the id of the FrameLayout where I want the fragment to be displayed. Please refer to main.xml earlier
setContentView(R.layout.main.xml);
LaunchListFragment fragment = new LaunchListFragment();
fragment.newInstance(LIST_TYPE);
getSupportFragmentManager().beginTransaction()
.add(R.id.item_detail_container,
fragment).commit();
When I changed this to use ViewPager, I am not sure where I'm directing the Fragment to be displayed. In my fragment onView I'm inflating fragment_launch_list and returning the View. But how will the view pager know where to set the fragment view. Is it inside the id pager?
I'm an absolute beginner, I apologize if all these are naive questions.
Cheers.
The question description is perfectly suitable to the problem I just had. I know the question is old but may this help other who face same. #Geoplex have not shown code of LaunchPageAdapter class. So I'm not sure if this solves his problem or not. But for me that worked.
In my PagerAdapter, the
public boolean isViewFromObject(View view, Object object) was overridden. I removed that method and allowed superClass to handle it. That started giving my expected result.
This is useful for you,
public class ViewPagerAdapter extends FragmentStatePagerAdapter {
private List<Fragment> fragments=null;
private FragmentManager fragmentManager=null;
public ViewPagerAdapter(FragmentManager fragmentManager,List<Fragment> fragments) {
super(fragmentManager);
this.fragments=fragments;
this.fragmentManager=fragmentManager;
}
#Override
public Fragment getItem(int position) {
fragmentManager.beginTransaction().commitAllowingStateLoss();
return fragments.get(position);
}
#Override
public int getCount() {
return fragments.size();
}
#Override
public void setPrimaryItem(ViewGroup container, int position, Object object)
{
super.setPrimaryItem(container,0,fragments.get(0));
}
#Override
public void notifyDataSetChanged()
{
super.notifyDataSetChanged();
}
#Override
public void destroyItem(ViewGroup collection, int position, Object view) {
fragmentManager.executePendingTransactions();
fragmentManager.saveFragmentInstanceState(fragments.get(position));
}
public void replaceItem(int position,Fragment fragment)
{
fragments.set(position, fragment);
this.notifyDataSetChanged();
}
}
MainActivity.java
public class MainActivity extends FragmentActivity implements OnPageChangeListener,TabListener
{
private android.support.v4.view.ViewPager mViewPager=null;
private ViewPagerAdapter mPagerAdapter=null;
private ActionBar action=null;
#Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main_layout);
initilizeViewPager();
action=getActionBar();
action.setDisplayShowHomeEnabled(false);
action.setDisplayShowTitleEnabled(false);
action.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
}
public void initilizeViewPager()
{
mViewPager=(android.support.v4.view.ViewPager)findViewById(R.id.viewPager);
List<Fragment> fragments = new Vector<Fragment>();
fragments.add(LaunchListFragment.newInstance(select));
fragments.add(AddTeamFragment.newInstance());
fragments.add(thirdFragment.newInstance());
viewPagerAdapter=new ViewPagerAdapter();
mViewPager.setAdapter(viewPagerAdapter(getSupportFragmentManager(),fragments));
new setAdapterTask().execute();
mViewPager.setOnPageChangeListener(this);
}
private class setAdapterTask extends AsyncTask<Void,Void,Void>
{
protected Void doInBackground(Void... params)
{
return null;
}
#Override
protected void onPostExecute(Void result)
{
mViewPager.setAdapter(mPagerAdapter);
Tab first=action.newTab().setTag("first").setText("First").setTabListener(MainActivity.this);
Tab second=action.newTab().setTag("second").setText("Second").setTabListener(MainActivity.this);
Tab third=action.newTab().setTag("third").setText("Third").setTabListener(MainActivity.this);
action.addTab(first);
action.addTab(second);
action.addTab(third);
}
}
}
public void onPageScrollStateChanged(int arg0)
{}
public void onPageScrolled(int arg0, float arg1, int arg2)
{}
public void onPageSelected(int position)
{
getActionBar().setSelectedNavigationItem(position);
}
public void onTabReselected(Tab tab, FragmentTransaction ft) {}
public void onTabSelected(Tab tab, FragmentTransaction ft) {
mViewPager.setCurrentItem(tab.getPosition());
}
public void onTabUnselected(Tab tab, FragmentTransaction ft) {}
}
main_layout.xml
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v4.view.ViewPager
android:id="#+id/viewpager"
android:layout_width="fill_parent"
android:layout_below="#android:id/tabs"
android:layout_height="fill_parent"/>
</RelativeLayout>
How do you set a default tab when the FragmentActivity is first created? I have 5 tabs and want it to open to tab 2, not 1. It seems like it should be much easier than it is!
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.fragment_layout);
mSectionsPagerAdapter = new SectionsPagerAdapter(
getSupportFragmentManager());
final ActionBar actionBar = getActionBar();
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
mViewPager = (ViewPager) findViewById(R.id.viewpager);
mViewPager.setAdapter(mSectionsPagerAdapter);
mViewPager
.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
#Override
public void onPageSelected(int position) {
actionBar.setSelectedNavigationItem(position);
}
});
for (int i = 0; i < mSectionsPagerAdapter.getCount(); i++) {
actionBar.addTab(actionBar.newTab()
.setText(mSectionsPagerAdapter.getPageTitle(i))
.setTabListener(this));
}
}
public void onTabUnselected(ActionBar.Tab tab,
FragmentTransaction fragmentTransaction) {
}
#Override
public void onSaveInstanceState(Bundle savedInstanceState) {
super.onSaveInstanceState(savedInstanceState);
}
#Override
public void onRestoreInstanceState(Bundle savedInstanceState) {
super.onRestoreInstanceState(savedInstanceState);
}
public void onTabSelected(ActionBar.Tab tab, FragmentTransaction ft) {
mViewPager.setCurrentItem(tab.getPosition());
}
public void onTabReselected(ActionBar.Tab tab,
FragmentTransaction fragmentTransaction) {
}
public class SectionsPagerAdapter extends FragmentPagerAdapter {
public SectionsPagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int position) {
Fragment f = null;
switch (position) {
case 0: {
f = new MasterFrag();
Bundle args = new Bundle();
f.setArguments(args);
break;
}
// case 1 - 3 edited out; i'd like default view "case 1".
default:
throw new IllegalArgumentException("not this many fragments: "
+ position);
}
return f;
}
#Override
public int getCount() {
return 4;
}
#Override
public CharSequence getPageTitle(int position) {
switch (position) {
case 0:
return getString(R.string.mastercattab1).toUpperCase();
// case 1- 3 edited out
}
return null;
}
}
And my XML
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TabHost
android:id="#android:id/tabhost"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TabWidget
android:id="#android:id/tabs"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="0"
android:orientation="horizontal" />
<FrameLayout
android:id="#android:id/tabcontent"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_weight="0" />
<android.support.v4.view.ViewPager
android:id="#+id/viewpager"
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight="1" />
</LinearLayout>
</TabHost>
</LinearLayout>
Have you tried calling mViewPager.setCurrentItem(tab.getPosition()); at the end of onCreate()?