推荐在Mortar屏幕内获取Activity的方法？

我正在使用Mortar和Flow为我的应用程序供电.如果我有以下视图:

public class MyView extends LinearLayout {
  @Inject MyScreen.Presenter presenter;
  private EditText someText;

  public MyView(Context context) {
    super(context);
    Mortar.inject(context, this);
  }

  @Override protected void onFinishInflate() {
    super.onFinishInflate();

    presenter.takeView(this);
  }

  @Override protected void onDetachedFromWindow() {
    super.onDetachedFromWindow();
    presenter.dropView(this);
  }
 }

以下屏幕:

@Layout(R.layout.my_view)
public class MyScreen implements Blueprint {
  @Override public String getMortarScopeName() {
    return getClass().getName();
  }

  @Override public Object getDaggerModule() {
    return new Module();
  }

  @dagger.Module(injects = MyView.class, addsTo = MyActivity.Module.class)
  public class Module {
  }

  @Singleton
  public class Presenter extends ViewPresenter {
    private final SomeAsyncService service;

    @Inject
    Presenter() { }

    @Override public void onLoad(Bundle savedInstanceState) {
    }

    @Override public void onSave(Bundle outState) {
    }

  }
}

现在我想访问使用此屏幕和视图的Activity.我想访问一些Activity方法,如:

getWindow()
finish()
getLayoutInflater()
getFragmentManager()

etc

我试图在我的屏幕中投射这样的上下文:

Activity activity = (Activity)getView.getContext;

但这当然会引发以下异常:

java.lang.ClassCastException: mortar.MortarContextWrapper cannot be cast to 
android.app.Activity

如何进行这项活动？谢谢.