Android ViewGroup crash: Attempt to read from field 'int android.view.View.mViewFlags' on a null object reference

Question

We have found several cases for this kind of crashes reported by backend logging monitoring. It seems the crashes do not tie to particular UX failure. And from the reports,

Answer 1

It's a threading issue. Could be that you're refreshing your ViewPager or some other adapter.

Have been facing this issue on and off, and realised that if you place it in the UI Thread in your Activity, then it'll render just fine.

activity?.runOnUiThread{
   // Add Your UI Updating Methods Here
}