I've a problem with getChildFragmentManager method.
I used it to create several nested fragments in viewpager. This Viewpager is in PopupWindow. In this way, fragments are created and I can see them in UI. Fragments contain a gridview.
Unfortunately, with android 4.3(API 18) or less, I can't select item of gridview. In the same time, with android 4.4 (API 19) I can do it!
To intercept item click I used callbacks to Activity, and Activity onAttach method is correct.
I think that problems are caused by getChildFragmentManager, but I'm not sure.
If someone had this problem, can he explain me his solution? Thanks!