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POAndroid viewpager......how to get a hold of the views?
 

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    <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>
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