Create two-way binding with Android Data Binding

Question

I have implemented the new Android data-binding, and after implementing realised that it does not support two-way binding. I have tried to solve this manually but I am strug

Answer 1

POJO:

public class User {
    public final ObservableField firstName =
            new ObservableField<>();
    public final ObservableField lastName =
            new ObservableField<>();

    public User(String firstName, String lastName) {
        this.firstName.set(firstName);
        this.lastName.set(lastName);

    }


    public TextWatcherAdapter firstNameWatcher = new TextWatcherAdapter(firstName);
    public TextWatcherAdapter lastNameWatcher = new TextWatcherAdapter(lastName);

}

Layout:

Watcher:

public class TextWatcherAdapter implements TextWatcher {

    public final ObservableField value =
            new ObservableField<>();
    private final ObservableField field;

    private boolean isInEditMode = false;

    public TextWatcherAdapter(ObservableField f) {
        this.field = f;

        field.addOnPropertyChangedCallback(new Observable.OnPropertyChangedCallback(){
            @Override
            public void onPropertyChanged(Observable sender, int propertyId) {
                if (isInEditMode){
                    return;
                }
                value.set(field.get());
            }
        });
    }

    @Override
    public void onTextChanged(CharSequence s, int start, int before, int count) {
        //
    }

    @Override
    public void beforeTextChanged(CharSequence s, int start, int count, int after) {
        //
    }

    @Override public void afterTextChanged(Editable s) {
        if (!Objects.equals(field.get(), s.toString())) {
            isInEditMode = true;
            field.set(s.toString());
            isInEditMode = false;
        }
    }

}