How do you share a ViewModel between Fragments?
Tests your understanding of ViewModel lifecycle scoping beyond a single screen. To share, scope the ViewModel to the parent Activity or a navigation graph using `activityViewModels()` or `navGraphViewModels()`.
This tests your knowledge of modern Android architecture and ViewModel lifecycle scoping for inter-fragment communication. A senior answer specifies scoping the ViewModel to a shared owner, like the parent Activity (`activityViewModels()`) or a navigation graph (`navGraphViewModels()`). Mention observing LiveData/StateFlow for updates. A red flag is suggesting outdated patterns like `setTargetFragment` or using global singletons, which ignore lifecycle safety.
Read the original → developer.android.com
- #android
- #kotlin
- #viewmodel
- #architecture
- #lifecycle
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