View Model keeps creating instance of Live Data

Question

I created the instance of View Model in onCreate method of an activity.

    ticketViewModel = ViewModelProviders.of(this).get(TicketViewModel.cl         


        

Answer 1

I had similar problem. You could try to use SingleLiveEvent

Or, in my, more complicated case, i had to use custom observer. It would looks like this:

public class CustomObserver implements Observer {
    private MyViewModel mViewModel;

    public CustomObserver (){}

    public void setViewModel(MyViewModel model) {
        mViewModel = model;
    }

    @Override
    public void onChanged(@Nullable YourType object) {
        mViewModel.AddTicket(id).removeObserver(this); // removing previous 
        mmViewModel.refreshTickets(); // refreshing Data/UI
        // ... do the job here
        // in your case it`s: dismissLoadingAnimation();
    } 
}

And using it like:

public void addTicket(View view){

     ticketViewModel.AddTicket(id).observe(this, myCustomObserver);
}