Nesting Fragments Inside A Viewpager Fragment Throws Indexoutofboundsexception

I am using a viewPager which contains 2 fragments. The first fragment contains nested fragments and the second one is an empty fragment. Inside the first fragment I am nesting 4 fr

Solution 1:

Figured out what was causing the error. Inside one of my fragments,I was calling

getActivity().getSupportFragmentManager().beginTransaction().remove(instance).commit();

which was using the fragment manager of the Activity instead of child fragment manager of the fragments'.

and hence this error:

java.lang.IndexOutOfBoundsException: Invalid index 3, size is2

where 3 was the index of the nested fragment and 2 was the size returned by the Activity's fragment manager.

Fixed it by using the fragment manager from the fragment instead of the Activity:

ThisFragment.this.getFragmentManager().beginTransaction().remove(instance).commit();