Android Q & A

 

How do I use ViewModel in Android?

Using ViewModel in Android simplifies the management of UI-related data across different lifecycle states. Here’s a straightforward guide to using ViewModel:

 

Add Dependency: Include the ViewModel dependency in your app’s build.gradle file.

 

Create ViewModel: Make a class that extends ViewModel to hold your UI data and logic.

 

Instantiate ViewModel: Get an instance of your ViewModel within your activity or fragment using ViewModelProvider.

 

Access Data: Access ViewModel data and observe LiveData objects to receive updates in your UI.

 

Update Data: Modify ViewModel data when needed, such as in response to user actions or network events.

 

Handle Changes: ViewModel instances persist across configuration changes like screen rotations, maintaining your UI data intact.

 

By following these steps, you can effectively use ViewModel to streamline the management of UI-related data in your Android app, making your code cleaner and more maintainable.

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Skilled Android Engineer with 5 years of expertise in app development, ad formats, and enhancing user experiences across high-impact projects