how to combine Architecture Components with data binding on android?

Question

I have developed app base on android data binding library: https://developer.android.com/topic/libraries/data-binding/index.html

class SignInViewModel extends BaseObservable {

    @Bindable
    public String getLogin() {
        return login;
    }

    @Bindable
    public String getPassword() {
        return password;
    }
}

and now I want to use ViewModelProviders from new library: https://developer.android.com/topic/libraries/architecture/guide.html

SignInViewModel signInViewModel = ViewModelProviders.of(this).get(SignInViewModel.class);

How it combine? any idea? or should be combined these two libraries?

Edit

I change to:

class SignInViewModel extends ViewModel {
   public ObservableField<String> login = new ObservableField<>("");

    public ObservableField<String> password = new ObservableField<>("");
}

and now compiles, but question is: is it right way?

Answer 1

It's a known incompatibility. You can't extend BaseObservable and AndroidViewModel at the same time, so you can't use @Bindable making two-way data binding impossible*.

This will be fixed after arch components 1.0 final (on the data binding side).

*Edit: You can make your own ObservableViewModel: https://gist.github.com/JoseAlcerreca/4b66f9953d50b483d80e6b9ad7172685