java - Dagger2 where inject @Named @Provides in dependent module? -

i use dagger2 demo https://guides.codepath.com/android/dependency-injection-with-dagger-2. want use cached , non_cached retrofit call. create in netmodule.java

@provides @named("cached") @singleton okhttpclient provideokhttpclient(cache cache) {     okhttpclient okhttpclient = new okhttpclient.builder()             .cache(cache)             .build();     return okhttpclient; }  @provides @named("non_cached") @singleton okhttpclient provideokhttpclientnoncached() {     okhttpclient okhttpclient = new okhttpclient.builder()             .build();     return okhttpclient; } 

githubmodule.java dependent on netmodule.java. githubcomponent.java

@userscope @component(dependencies = netcomponent.class, modules = githubmodule.class) public interface githubcomponent { void inject(demodaggeractivity activity); } 

my netcomponent.java

@singleton @component(modules={applicationmodule.class, netmodule.class}) public interface netcomponent { // downstream components need these exposed retrofit retrofit(); okhttpclient okhttpclient(); sharedpreferences sharedpreferences(); } 

in demodaggeractivity.java inject retrofit:

@inject @named("cached") okhttpclient mokhttpclient;  @inject retrofit mretrofit; 

after rebuild project error:

where can tell dagger, want use cached or non_cached retrofit?

your retrofit provider should use @named annotation okhttpclient, example:

@provides @singleton public retrofit provideretrofit(@named("cached") okhttpclient okhttpclient) {     return new retrofit.builder()             .baseurl("...")             .addconverterfactory(gsonconverterfactory.create())             .client(okhttpclient)             .build(); }