stfalconaleks

private ProfileViewModel viewModel;
 
@Override
protected void onCreate(Bundle savedInstanceState) {
   super.onCreate(savedInstanceState);
   ActivityProfileBinding binding = DataBindingUtil.setContentView(this, LAYOUT_ACTIVITY);
 
   viewModel = new ProfileViewModel(this);
   binding.setViewModel(viewModel);
}

stfalconaleks

public void onResume() {
   isLoading.set(this.user.get() == null);
   userRepo.getUser(this::onUserLoaded);
}

stfalconaleks

public abstract class BindingActivity extends AppCompatActivity {
   …
 
   @Override
   protected void onStart() {
      super.onStart();
      viewModel.onStart();
   }
 
   @Override

stfalconaleks

private AppCompatActivity binding;
private ActivityViewModel viewModel;
 
public abstract ActivityViewModel onCreate();
public abstract @IdRes int getVariable();
public abstract @LayoutRes int getLayoutId();
 
@Override
public void onCreate(Bundle savedInstanceState) {
   super.onCreate(savedInstanceState);

stfalconaleks

public abstract class ActivityViewModel extends BaseObservable {
 
   protected Activity activity;
 
   public ActivityViewModel(Activity activity) {
       this.activity = activity;
   }
 
   public Activity getActivity() {
       return activity;

stfalconaleks

public abstract class BindingActivity<B extends ViewDataBinding, VM extends ActivityViewModel> extends AppCompatActivity {
 
   private B binding;
   private VM viewModel;
 
   public B getBinding() {
       return binding;
   }
}
 

stfalconaleks

public class ProfileActivity
       extends BindingActivity<ActivityProfileBinding, ProfileViewModel> {
 
   @Override
   public ProfileViewModel onCreate() {
       return new ProfileViewModel(this);
   }
 
   @Override
   public int getVariable() {

stfalconaleks

<layout
   xmlns:android="http://schemas.android.com/apk/res/android">
 
   <data>
       <variable
           name="viewModel"
           type="com.stfalcon.androidmvvmexample.features.dialogs.input.InputDialogVM"/>
   </data>
 
   <EditText

stfalconaleks

public final ObservableField<String> field = new ObservableField<String>() {
   @Override
   public String get() {
       // TODO: your logic
       return super.get();
   }
 
   @Override
   public void set(String value) {
       // TODO: your logic

stfalconaleks

field.addOnPropertyChangedCallback(new OnPropertyChangedCallback() {
   @Override
   public void onPropertyChanged(Observable sender, int propertyId) {
      // TODO: your logic
   }
});