The document provides an overview of ViewModel and LiveData as part of Android Jetpack, emphasizing their role in managing UI-related data in a lifecycle-aware manner. It highlights the advantages of using LiveData, such as preventing memory leaks and ensuring UI consistency with data state. The document also includes implementation tips and warnings about common pitfalls when using LiveData.

1. Memahami ViewModel & LiveData
Lebih Dalam
Alfian Yusuf Abdullah
Google Associate Android Developer, Code Reviewer Dicoding

2. ViewModel
Part of Android Jetpack

3. The ViewModel class is designed to store and manage UI-related data in a
lifecycle conscious way. The ViewModel class allows data to survive
configuration changes such as screen rotations.
https://developer.android.com/topic/libraries/architecture/viewmodel
Android Jetpack
ViewModel Overview

4. Lifecycle of ViewModel
Android Jetpack

5. ViewModel Implementation
Android Jetpack

6. Android Jetpack

7. Android Jetpack

8. Android Jetpack

9. Don’t save all about Context
References!
Android Jetpack

10. And how to access Context?
Android Jetpack

11. Use AndroidViewModel!
Android Jetpack

12. Android Jetpack

13. LiveData
Part of Android Jetpack

14. ● Ensures your UI matches your data state
● No memory leaks
● No crashes due to stopped activities
● No more manual lifecycle handling
● Always up to date data
● Proper configuration changes
Android Jetpack
The advantages of using LiveData

15. LiveData Implementation
Android Jetpack

16. Android Jetpack

17. Some tips when use
LiveData
Android Jetpack

18. Don’t use Fragment as LifecycleOwner of LiveData
Android Jetpack

19. Don’t use Fragment as LifecycleOwner of LiveData
Android Jetpack

20. Don’t exposing LiveData as mutable to views
Android Jetpack

21. Don’t exposing LiveData as mutable to views
Android Jetpack

22. Don’t exposing LiveData as mutable to views
Android Jetpack

23. Don’t exposing LiveData as mutable to views
Android Jetpack

24. Don't put observe function at the event handling
Android Jetpack

25. Don't put observe function at the event handling
Android Jetpack

26. Contact:
@alfianyabdullah
THANKS!
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