reusing fragments in a fragmentpageradapter

Appendix for Geoff's post:

You can get reference to your Fragment in FragmentPagerAdapter using findFragmentByTag(). The name of the tag is generated this way:

private static String makeFragmentName(int viewId, int index)
{
     return "android:switcher:" + viewId + ":" + index;
}

where viewId is id of ViewPager

Look at this link: http://code.google.com/p/openintents/source/browse/trunk/compatibility/AndroidSupportV2/src/android/support/v2/app/FragmentPagerAdapter.java#104

The FragmentPagerAdapter already caches the Fragments for you. Each fragment is assigned a tag, and then the FragmentPagerAdapter tries to call findFragmentByTag. It only calls getItem if the result from findFragmentByTag is null. So you shouldn't have to cache the fragments yourself.