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

I was trying to navigate from Fragment A to Fragment B, and Fragment A was a form that required data from Fragment B.

So when I tried to navigate without filling up A, it was throwing this exception.

Also, even if A was independent of the data B, it was throwing this exception.

I have no idea why but I added a condition where the user had to fill-up the form before navigating away and that solved the issue.