What is difference between ActivityRetainedComponent @ActivityRetainedScope and ActivityComponent @ActivityScoped in dagger hilt android

Question

score 9 · Accepted Answer · answered Oct 12 '20 at 05:36

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Based on the documents. ActivityRetainedComponent lives across configuration changes, so it is created at the first onCreate and last onDestroy, and when you mark your dependencies in ActivityRetainedComponent with @ActivityRetainedScope its guarantees that your object will be a singleton and survive across configuration changes. But ActivityComponent created at onCreate and destroyed at onDestroy. and when you mark your dependencies in ActivityComponent with @ActivityScope its guarantees that your object will be a singleton but ActivityComponent will be destroyed in configuration changes.

answered Oct 12 '20 at 05:36

Mehdi Yari

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First onCreate and last onDestroy of what? The Application? The Activity in question? Any Activity in the app? – phreakhead Aug 10 '21 at 01:02
First onCreate and last onDestroy of your activity that uses hilt for dependency injection. – Mehdi Yari Aug 10 '21 at 10:01
What the difference then with @ViewModelScope? – Alexander Skvortsov Sep 13 '22 at 11:29
Here(https://stackoverflow.com/questions/67765298/hilt-why-is-activityretainedscoped-vs-viewmodelscoped) you can read more about the difference between these two scopes. (ViewModelScoped vs ActivityRetainedScoped). @AlexanderSkvortsov – Mehdi Yari Sep 13 '22 at 15:20

score 4 · Answer 2 · edited Oct 16 '21 at 19:32

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@ActivityRetainedScope will safe guard from configuration changes such screen orientation or language changes.

edited Oct 16 '21 at 19:32

Boken

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answered Oct 13 '20 at 06:40

Abhijith mogaveera

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What is difference between ActivityRetainedComponent @ActivityRetainedScope and ActivityComponent @ActivityScoped in dagger hilt android

2 Answers2