Your Second Kotlin Android App

Aug 29 2023 · Kotlin 1.8.21, Android 13, Android Studio Flamingo | 2022.2.1

Part 3: Save Preferences

19. Create a ViewModel

Episode complete

Play next episode

About this episode
Leave a rating/review
See forum comments
Cinema mode Mark complete Download course materials
Previous episode: 18. Explore Shared Preferences Next episode: 20. Challenge: Create an Instance of ListDataManager

Get immediate access to this and 4,000+ other videos and books.

Take your career further with a Kodeco Personal Plan. With unlimited access to over 40+ books and 4,000+ professional videos in a single subscription, it's simply the best investment you can make in your development career.

Learn more Already a subscriber? Sign in.

Heads up... You've reached locked video content where the transcript will be shown as obfuscated text.

In the previous episode, you used Shared Preferences as a way to save data. The data driving your app is known as the model. The model doesn’t just have to be shared prefs. It’s whatever holds the backing data.

class ListDataManager(application: Application)
: AndroidViewModel(application)
fun saveList(list: TaskList) {
    val sharedPrefs = PreferenceManager.getDefaultSharedPreferences(application)

fun readLists(): ArrayList<TaskList> {
    val sharedPrefs = PreferenceManager.getDefaultSharedPreferences(application)