Set Default Tab for Fragment/ViewPager setup

Question

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> 

Answer 1

Have you tried calling mViewPager.setCurrentItem(tab.getPosition()); at the end of onCreate()?