UserBehavior2.java

public abstract class UserBehavior {
    private boolean shouldRunDefault;

    public void byDefault(UserReference reference){}

    public void onAnonymous(UserReference user){
        shouldRunDefault = true;
    }
    public void onRegular(RegularUserReference user) {
        shouldRunDefault = true;
    }
    public void onPremium(RegularUserReference user) {
        shouldRunDefault = true;
    }

    public void dispatch(CurrentUserProvider provider){
        UserReference userReference = provider.getCurrentUserReference();
        shouldRunDefault = false;
        userReference.dispatchBehavior(this);
        if(shouldRunDefault){
            shouldRunDefault = false;
            byDefault(userReference);
        }
    }
}

class MyActivity extends Activity {
    @Inject
    CurrentUserProvider _userProvider;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        new UserBehavior(){
            @Override
            public void byDefault(UserReference reference) {
                setContentView(R.layout.premium);
            }

            @Override
            public void onPremium(RegularUserReference user) {
                setContentView(R.layout.premium);
            }
        }.dispatch(_userProvider);
    }
}