XXX

public class MainViewModel extends AndroidViewModel {

    private TaskRepository taskRepository;
    private MutableLiveData<List<Task>> allTasks;
    public ObservableField<String> description = new ObservableField<>();
    public ObservableField<String> date = new ObservableField<>();
    public ObservableField<String> time = new ObservableField<>();


    public MainViewModel(@NonNull Application application) {
        super(application);
        taskRepository = new TaskRepository(application);
        allTasks = taskRepository.getAllTasks();
    }

    public LiveData<List<Task>> getAllTasks() {
        return allTasks;
    }

    public void deleteTask(Task task) {
        taskRepository.delete(task);
    }

    public void select(Task task) {

    }

    public LiveData<List<Task>> getSelected() {
        return allTasks;
    }