application.java

public class Dagger2application extends Application implements HasDispatchingActivityInjector {
    @Inject
    DispatchingAndroidInjector<Activity> dispatchingActivityInjector;

    @Override
    public void onCreate() {
        super.onCreate();
        DaggerMyApplicationComponent.create().inject(this);
    }

    @Override
    public DispatchingAndroidInjector<Activity> activityInjector() {
        return dispatchingActivityInjector;
    }
}