Hi there. Consider the following scenario: I have...

# android-architecture

[ubu]

Hi there. Consider the following scenario:

I have a Fragment (A) that subscribes a ViewModel (V) in OnActivityCreated(). When opening this Fragment (A), I receive an update from LiveData.

Then I open another Fragment (B), then get back to the first one (A). It gets inflated, and onCreateView(), onViewCreated() and OnActivityCreated() are called. We've just subscribed the ViewModel (V), but it does not emit any item (the most recent update). I'd expect a LiveData would behave like a BehaviorSubject in RxJava2 (tell me if this comparison is appropriate), but there are no updates.

What could go wrong?

Any help would be appreciated.

[Sangeet]

Are you getting ViewModel by passing getActivity()

[ubu]

@Sangeet, no, by passing Fragment.

[muralimohan962]

Nope! You have to pass getActivity() to of() method otherwise you won't get the viewmodel of the activity. If you pass fragment to of() method then the viewmodel you get is not the activity's but rather one that is scoped to your specific fragment.