title: Set default page for ViewPager in Android
body: <p>I am using the following code, MAX is 2 pages. By default the position is 0 and adds a new page to the right. I inflate two layout files.</p>
  
  <p>How can I show the page1 when the app starts and add a new page to the left ?
  Thanks.</p>
  
  <p><strong>main.xml</strong></p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
      android:orientation="vertical" android:layout_width="fill_parent"
      android:layout_height="fill_parent"&gt;
  
  
      &lt;android.support.v4.view.ViewPager
          android:layout_width="wrap_content" android:layout_height="wrap_content"
          android:id="@+id/pagerView" /&gt;
  
  
  &lt;/LinearLayout&gt;
  </code></pre>
  
  <p><strong>Java code</strong></p>
  
  <pre><code>public class MyPagerActivity extends Activity {
      private Context context;    
      private int pageNumber;
  
      @Override
      public void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          setContentView(R.layout.main);
          context = this;
  
          ViewPager pagerView = (ViewPager)findViewById(R.id.pagerView);
          pagerView.setAdapter(new AwesomePagerAdapter());    
  
      }
  
  
      private class AwesomePagerAdapter extends PagerAdapter{
  
          @Override
          public void destroyItem(View collection, int position, Object view) {
              ((ViewPager) collection).removeView((View)view);            
          }
  
          @Override
          public void finishUpdate(View arg0) {
              //setPageTitles(getPageNumber());
          }
  
          @Override
          public int getCount() {
              return 2;
          }
  
          @Override
          public Object instantiateItem(View collection, int position) {
              /*  TextView tv = new TextView(MyPagerActivity.this);
          tv.setText("Bonjour PAUG " + position);
          tv.setTextColor(Color.WHITE);
          tv.setTextSize(30);
  
          ((ViewPager) collection).addView(tv,0);
  
          return tv;*/
  
              View view = getViewToShow(position);
              ((ViewPager) collection).addView(view,0);
              return view;
          }
  
          @Override
          public boolean isViewFromObject(View view, Object object) {
              return view==((View)object);
          }
  
          @Override
          public void restoreState(Parcelable arg0, ClassLoader arg1) {
              // TODO Auto-generated method stub
  
          }
  
          @Override
          public Parcelable saveState() {
              // TODO Auto-generated method stub
              return null;
          }
  
          @Override
          public void startUpdate(View arg0) {
              // TODO Auto-generated method stub
  
          }
  
      }
  
  
      private View getViewToShow(int position){
          View view = null;
          View layout; 
          LayoutInflater mInflater =  (LayoutInflater)
          context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
  
          switch(position){
  
          case 0: 
              layout  = mInflater.inflate(R.layout.elements, null);
              view = layout;
              break;
          case 1: view = 
              layout  = mInflater.inflate(R.layout.elements2, null);
          view = layout;
  
          break;
          }
          return view;
      }
  
  }
  </code></pre>