怎么在Angular service中使用TemplateRef

template(template:TemplateRef,options?:NzNotificationDataOptions):NzNotificationRef;

import{Injectable,TemplateRef}from'@angular/core';
import{NzNotificationService}from'ng-zorro-antd/notification';

exportenumEMessageCode{
XXXError=1024,
YYYError=1025,
}

exportconstMESSAGE={
[EMessageCode.XXXError]:'XXXError...',
[EMessageCode.YYYError]:'YYYError...',
};

@Injectable({
providedIn:'root',
})
exportclassMessageService{
privatetemplateMap=newMap();
constructor(privatenotificationService:NzNotificationService){}

//templateRef
publicinitTemplate(message:EMessageCode,ref:TemplateRef):void{
this.templateMap.set(message,ref);
}

publicshowMessage(messageCode:EMessageCode){
switch(messageCode){
caseEMessageCode.XXXError:
returnthis.notificationService.template(this.templateMap.get(messageCode),{
nzDuration:0,
});
caseEMessageCode.YYYError:{
returnthis.notificationService.error('YYYError',MESSAGE[EMessageCode.YYYError]);
}
}
}

publicremoveMessage(messageId?:string){
this.notificationService.remove(messageId);
}
}

import{Component,TemplateRef,ViewChild,AfterViewInit}from'@angular/core';
import{EMessageCode,MessageService}from'./message.service';

@Component({
selector:'app-message-service-virtual-ref',
template:`ThereareXXXError,youmustreferto
something
tocheckout`,
})
exportclassMessageServiceVirtualRefComponentimplementsAfterViewInit{
@ViewChild('xxx_ref')xxxTemplateRef!:TemplateRef;

constructor(privatemessageService:MessageService){}

ngAfterViewInit():void{
this.messageService.initTemplate(免费云主机、域名EMessageCode.XXXError,this.xxxTemplateRef);
}
}