Milliseid Jetpack ViewModel komponente kasutate andmete ja UI oleku haldamiseks?

To manage data and UI state in Jetpack ViewModel, the following components are typically used:

• LiveData — observable data that automatically updates the UI upon changes. Enables a reactive approach.

• MutableLiveData — a mutable version of LiveData, used within the ViewModel to update data.

• StateFlow / SharedFlow (from Kotlin Coroutines) — modern alternatives to LiveData for managing state and events with coroutine support.

• SavedStateHandle — allows saving and restoring the ViewModel's state when the UI is recreated, such as during screen rotation.

Example of using LiveData in a ViewModel:

class MyViewModel : ViewModel() {
    private val _text = MutableLiveData<String>()
    val text: LiveData<String> = _text

    fun updateText(newText: String) {
        _text.value = newText
    }
}