title: Android viewpager......how to get a hold of the views?
body: <p>I'm able to build an activity with a viewpager from the various examples on the web, but can I no longer use the views as they were in the original activity?  Take for example the following:</p>
  
  <pre><code>public class SimpleViewPagerActivity extends Activity {
  
      LinearLayout thisIsWhatBreaks;
  
      @Override
      public void onCreate(Bundle savedInstanceState) {
              super.onCreate(savedInstanceState);
              setContentView(R.layout.main);
  
              MyPagerAdapter adapter = new MyPagerAdapter();
              ViewPager myPager = (ViewPager) findViewById(R.id.myfivepanelpager);
              myPager.setAdapter(adapter);
              myPager.setCurrentItem(2);
  
              thisIsWhatBreaks = (LinearLayout)findViewById(R.id.layoutThatsAlwaysNull);
  
      }
  
  
      @Override
      public void onConfigurationChanged(Configuration newConfig) {
          super.onConfigurationChanged(newConfig);
  
          if (newConfig.orientation == Configuration.ORIENTATION_LANDSCAPE) {
  
              thisIsWhatBreaks.setBackgroundColor(Color.BLACK);
  
          }
          else if (newConfig.orientation == Configuration.ORIENTATION_PORTRAIT){
              thisIsWhatBreaks.setBackgroundColor(Color.RED);
          }   
      }
  
  
      public void farLeftButtonClick(View v)
      {
              Toast.makeText(this, "Far Left Button Clicked", Toast.LENGTH_SHORT).show(); 
  
      }
  
      public void farRightButtonClick(View v)
      {
              Toast.makeText(this, "Far Right Elephant Button Clicked", Toast.LENGTH_SHORT).show(); 
  
      }
  
      private class MyPagerAdapter extends PagerAdapter {
  
              public int getCount() {
                      return 5;
              }
  
              public Object instantiateItem(View collection, int position) {
  
                      LayoutInflater inflater = (LayoutInflater) collection.getContext()
                                      .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
  
                      int resId = 0;
                      switch (position) {
                      case 0:
                              resId = R.layout.farleft;
                              break;
                      case 1:
                              resId = R.layout.left;
                              break;
                      case 2:
                              resId = R.layout.middle;
                              break;
                      case 3:
                              resId = R.layout.right;
                              break;
                      case 4:
                              resId = R.layout.farright;
                              break;
                      }
  
                      View view = inflater.inflate(resId, null);
  
                      ((ViewPager) collection).addView(view, 0);
  
                      return view;
              }
  
              @Override
              public void destroyItem(View arg0, int arg1, Object arg2) {
                      ((ViewPager) arg0).removeView((View) arg2);
  
              }
  
              @Override
              public void finishUpdate(View arg0) {
                      // TODO Auto-generated method stub
  
              }
  
              @Override
              public boolean isViewFromObject(View arg0, Object arg1) {
                      return arg0 == ((View) arg1);
  
              }
  
              @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
  
              }
  
      }
  
  }
  </code></pre>
  
  <p>I originally had the <code>thisIsWhatBreaks</code> LinearLayout in <code>main.xml</code>, but have now moved it to <code>farleft.xml</code>, which is one of the layouts inflated in the PagerAdapter.</p>
  
  <p>Therefore, I can no longer use 
  <code>LinearLayout thisIsWhatBreaks = (LinearLayout)findViewById(R.id.layoutThatsAlwaysNull);</code>
  to assign value to the LinearLayout.  Where and how do I do this?</p>
  
  <p>How could I once again assign value to the LinearLayout so that it can be modified in the OnConfurationChanged() method as shown within this activity class?  I keep getting nullpointerexceptions all over my activity now that I've moved most of the views from main.xml to farleft.xml and can't seem to find a way to make this work.</p>