This question is more out of curiosity than is is out of a bug or something else.

When I generate a blank fragment from the Android Studio templates, the onCreateView method which returns a View, has the nullable question mark. The Android Studio highlights it in yellow and tips to remove the nullable sign since the onCreateView return a non nullable View.

Why doesn't Android Studio autogenerate it as non nullable from the start? Is it a bug or intentional? If intentional, why?

CodePudding user response：

I'm just guessing - returning null from onCreateView is perfectly fine in order to create a "headless fragment" but those are not really useful since viewmodels were introduced.

This might be a reason why onCreateView return type is nullable but if you do override it then it's implied you want to return something from it so studio can only drop a hint.