Connecting The Dots :: Pure SavedState - ViewModel body

Connecting_SavedState_ViewModel_Body.kt

class SomeViewModel(/* ..ommited.. */){
  val counter = MutableLiveData<Int>(0)

  init {
    counter.value = savedStateHandle.get("counter") ?: 0
    
    counter.observeForever { newValue ->
      savedStateHandle.set("counter", newValue)
    }
  }

  fun onPlusClick() {
    counter.value = (counter.value ?: 0) + 1
  }
}