skydoves

@PreferenceComponent(entities = {Profile.class, Device.class})
public interface UserProfileComponent {
}

skydoves

public class MyApplication extends Application {

    @Override
    public void onCreate() {
        super.onCreate();
        PreferenceComponent_UserProfileComponent.init(this);
    }
}

skydoves

Preference_UserProfile userProfile = PreferenceComponent_UserProfileComponent.getInstance().UserProfile();
Preference_UserDevice userDevice = PreferenceComponent_UserProfileComponent.getInstance().UserDevice();

skydoves

/**
 * Component integrates entities.
 */
@PreferenceComponent(entities = {Profile.class, Device.class})
public interface UserProfileComponent {
    /**
     * declare dependency injection targets.
     */
    void inject(MainActivity __);
    void inject(LoginActivity __);

skydoves

@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
   super.onCreate(savedInstanceState);
   setContentView(R.layout.activity_main);
   PreferenceComponent_UserProfileComponent.getInstance().inject(this);
}

skydoves

@InjectPreference
public PreferenceComponent_UserProfileComponent component;

@InjectPreference
public Preference_UserProfile userProfile;

skydoves

apply plugin: 'kotlin-android'
kapt {
  correctErrorTypes = true
}

skydoves

@PreferenceComponent(entities = arrayOf(Profile::class, Device::class))
interface UserProfileComponent {
    /**
     * declare dependency injection targets.
     */
    fun inject(target: MainActivity)
    fun inject(target: LoginActivity)
}

skydoves

@InjectPreference
lateinit var component: PreferenceComponent_UserProfileComponent
    
override fun onCreate(savedInstanceState: Bundle?) {
   super.onCreate(savedInstanceState)
   setContentView(R.layout.activity_main)
    PreferenceComponent_UserProfileComponent.getInstance().inject(this) // inject dependency injection to MainActivity.

skydoves

@Singleton
public class AppViewModelFactory implements ViewModelProvider.Factory {
    private final Map<Class<? extends ViewModel>, Provider<ViewModel>> creators;

    @Inject
    public AppViewModelFactory(Map<Class<? extends ViewModel>, Provider<ViewModel>> creators) {
        this.creators = creators;
    }

    @SuppressWarnings("unchecked")