dagger

问题 Is it possible to do field injection and constructor injection for the same class ? For instance : implementation is like activity field injection of fragment. fragment (activityscoped) non parameter constructor injection (downstream ) field injection of presenter(Fragmentscoped) class. 回答1: Yes, you can inject constructors, methods, and fields within the same class. Dagger will automatically inject fields and call @Inject -annotated methods as part of the construction process. 来源： https:/

问题 I'm trying to create modular architecture for my Android app and now I'm looking into Dagger DI library. It's really awesome tool, but I don't want to misuse it and currently I have numerous questions like: Should I wrap everything (like Activities or Fragments, or event separate Views) into modules or only common used parts of app (likes services for querying data with login, data layer)? Better use with Android annotations. Android Annotations is another cool library I faced but it seems to

问题 I have 2 dependencies with the same Scope that require of each other. My dependencies are domain services with different methods ( each method a different business case). some business cases might use methods from another domain. In order to do this I need domain1 to be available for domain2 and vice versa. but when i do this i get a dependency cycle compilation error. after googling for some time i found that in order to overcome this issue i must inject one of the dependencies with the

问题 Having looked at a lot of Dagger demo apps, it isn't clear to me where business objects are placed. In a typical three tier app you have ui, business layer and data access layer. MVP is essentially a three tier architecture. Dagger deals with components and modules and I've seen demo apps place business logic in modules. But according to the MVP architecture, business logic belongs in the Presenter layer as this layers is suppose to act as bridge between the ui and model. Many of these demo

问题 I'm using Dagger for Android for dependency injections. I have a UserService object in a Main Class: public class Main implements Runnable { @Inject UserService service; @Override public void run() { for (User f : service.getUserByName("toto")) { System.out.print(f.getM_Nom()); } } public static void main(String[] args) { ObjectGraph objectGraph = ObjectGraph.create(new UserModule()); Main m = objectGraph.get(Main.class); m.run(); } } I managed to inject the "service" field and to call the

问题 This is how I'm trying to provide my ViewModelFactory : @Suppress("UNCHECKED_CAST") @Singleton class ViewModelFactory @Inject constructor( private val viewModels: MutableMap<Class<out ViewModel>, Provider<ViewModel>> ) : ViewModelProvider.Factory { override fun <T : ViewModel?> create(modelClass: Class<T>): T = viewModels[modelClass]?.get() as T } @Target(AnnotationTarget.FUNCTION, AnnotationTarget.PROPERTY_GETTER, AnnotationTarget.PROPERTY_SETTER) @kotlin.annotation.Retention

问题 How do I inject objects into a Servlet using Dagger? Since the servlet container instantiates the Servlets themselves, they are not created with Dagger. Therefore, the only mechanism I can see to inject into them is via static injections, which the dagger homepage warns against doing. Is there another (best practices) way to do it? Specifically, I am using Jetty and GWT (my servlets extend RemoteServiceServlet), but I don't think those details matter. 回答1: There is not (yet) any stock

问题 i just learn about how can i implementing Retrofit with Dagger2 to set dynamic change url on this reference i try to make simple module with HostSelectionInterceptor class to use that on Dagger2, but i can't make that correctly and i get error: my NetworkModule : @Module(includes = ContextModule.class) public class NetworkModule { @Provides @AlachiqApplicationScope public HttpLoggingInterceptor loggingInterceptor() { HttpLoggingInterceptor interceptor = new HttpLoggingInterceptor(new

问题 I'm having trouble setting up an Eclipse project for the Coffee example in the Dagger repo. Below are screenshots of the error message and the Eclipse settings I'm using. Any suggestions would be greatly appreciated. Thanks. 回答1: Looks like your version of Javawriter should be 2.2.1 来源： https://stackoverflow.com/questions/20253373/dagger-setup-in-eclipse

问题 I'm experimenting with Dagger 2 and I'm just testing things out to understand the framework. I'm having a ApplicationComponent that needs to be a singleton for the whole app so I defined it like this: @Component(modules = {ApplicationModule.class}) @Singleton public interface ApplicationComponent { Context provideContext(); } With module: @Module public class ApplicationModule { private Application appContext; public ApplicationModule(Application appContext) { this.appContext = appContext; }