Xamarin.forms 未在Prism 7.0中发布用于Xamarin表单的事件聚合器

我最近将我的Xamarin表单应用程序项目从Prism 6.3更新到Prism 7.0。除了eventaggregators之外，一切似乎都正常工作，它们得到了正确的订阅，但似乎没有发布

下面是我使用的代码的一部分

public ConfigureInventoryEventViewModel(IEventAggregator ea, INavigationService navigationService):base(navigationService,ea)

    {
        TappedBackCommand = new DelegateCommand(TappedBack);

        _ea.GetEvent<SetLocationEvent>().Subscribe(SetLocationDropdown,true);
    }

请帮忙

Xamarin表单版本：2.5.0.280555 棱镜.形状：7.0.0396

---

谢谢

我想你忘了这个：

\u ea=ea

public ConfigureInventoryEventViewModel(IEventAggregator ea, INavigationService navigationService):base(navigationService,ea)
{
    _ea = ea;

    TappedBackCommand = new DelegateCommand(TappedBack);
    _ea.GetEvent<SetLocationEvent>().Subscribe(SetLocationDropdown,true);
}

public ModalPopupViewModel(IEventAggregator ea, INavigationService navigationService):base(navigationService,ea)
{
    _ea = ea;

    ItemTappedCommand = new DelegateCommand<string>(ItemTapped);
}

public-ConfigureInventoryEventViewModel（IEventAggregator ea，INavigationService navigationService）：基本（navigationService，ea）
{
_ea=ea；
TappedBackCommand=新建DelegateCommand（TappedBack）；
_ea.GetEvent（）.Subscribe（SetLocationDropdown，true）；
}
public ModalPopupViewModel（IEventAggregator ea，INavigationService navigationService）：基础（navigationService，ea）
{
_ea=ea；
ItemTappedCommand=新的DelegateCommand（ItemTapped）；
}

public class SetLocationEvent:PubSubEvent
{
}

public ConfigureInventoryEventViewModel(IEventAggregator ea, INavigationService navigationService):base(navigationService,ea)
{
    _ea = ea;

    TappedBackCommand = new DelegateCommand(TappedBack);
    _ea.GetEvent<SetLocationEvent>().Subscribe(SetLocationDropdown,true);
}

public ModalPopupViewModel(IEventAggregator ea, INavigationService navigationService):base(navigationService,ea)
{
    _ea = ea;

    ItemTappedCommand = new DelegateCommand<string>(ItemTapped);
}