title: I can't understand how to inject Retrofit object inside my Interactor class
body: <p>I tried to read a bunch of articles, but I still can't get a grasp around dagger idea.</p>
  
  <p>I have my Indicator class to which I want to inject retrofit instance.</p>
  
  <pre><code>public class GetForecastInteractorImpl implements MainContract.GetForecastInteractor {
  
  @Inject
  Retrofit retrofit;
  ...
  }
  </code></pre>
  
  <p>With no problem, I was able to inject it to MainActivity, but this is not what I want.</p>
  
  <p>Any idea? I don't know what parts of the code would be helpful, so please tell me I would provide them.</p>