Question

If I have a class with a single constructor, how can I get Roboguice to inject this into an activity?

The service to be injected:

public FlightManager(Context context){
    //do something with the context
}

The activity:

public class recordFlight extends RoboActivity {

    @InjectResource FlightManager manager;

  //whatever code here
}

The only dependency is the Context, which I gather should be injected without problem. Additoinally, all of my other usages, such as @InjectView and @Inject of classes with a default constructor seem fine, but the usage above kills the app without even giving me a stack trace.

Any ideas?

Thanks

Jon

Answer 1

Mark the constructor with the @Inject annotation:

@Inject
public FlightManager(Context context){
    //do something with the context
}

Then inject FlightManager like so:

public class recordFlight extends RoboActivity {

    @Inject FlightManager manager;

    //whatever code here
}

@InjectResource is not necessary here, since it’s a regular Java class you’re injecting, not an Android resource.