LiveData is abstract android

Question

I tried initializing my LiveData object and it gives the error: "LiveData is abstract, It cannot be instantiated"

LiveData listLiveData = new LiveData<>();

Answer 1

In a ViewModel, you may want to use MutableLiveData instead.

E.g.:

class MyViewModel extends ViewModel {
  private MutableLiveData<String> data = new MutableLiveData<>();

  public LiveData<String> getData() {
    return data;
  }

  public void loadData() {
    // Do some stuff to load the data... then
    data.setValue("new data"); // Or use data.postValue()
  }
}

Or, in Kotlin:

class MyViewModel : ViewModel() {
  private val _data = MutableLiveData<String>()
  val data: LiveData<String> = _data

  fun loadData() {
    viewModelScope.launch {
      val result = // ... execute some background tasks
      _data.value = result
    }
  }
}