PagerAdapter start position

Question

I\'m using the following example to impliment my viewPager: http://code.google.com/p/viewpagerexample/issues/list

The problem with this example is that I can\'t figure o

Answer 1

I have noticed that if you recreate Activity (orientation change) with ViewPager having FragmentStatePagerAdapter, then the Adapter will reuse it's Fragments. The way to stop it is:

@Override
public void onSaveInstanceState(Bundle savedInstanceState) {
    if (viewPager != null) {
        // before screen rotation it's better to detach pagerAdapter from the ViewPager, so
        // pagerAdapter can remove all old fragments, so they're not reused after rotation.
        viewPager.setAdapter(null);
    }
    super.onSaveInstanceState(savedInstanceState);
}

but then after Activity recreation ViewPager alwayes opens page 0 first and setCurrentItem(CurrentPosition); doesn't work. Fix for that is changing page after delay:

new Handler().postDelayed(new Runnable() {
    @Override
    public void run() {
        viewPager.setCurrentItem(newPosition);
    }
}, 100);