Question

我试图通过

动态创建一个Angular2组件

给它一个位置
返回组件

我没有使用DynamicComponentLoader，因为它被弃用了ViewContainerRef和ComponentResolver，但我不认为解析器正在正确创建组件。它只是在最后附加它。

我做错了什么？

我创建了一个包含源代码的plnkr：http://plnkr.co/edit/a2esZiVpiV5f1r4uEufX?p=preview

@Component({
  selector : 'marker-component',
  template : '<strong>OH BABY ITS WORKING</strong>'
})
class MarkerComponent {

}

@Component({
  selector: 'my-app',
  template : `
    <div id="map"></div>
  `
})
export class App implements NgOnInit {

  map: any

  constructor(
    private compiler: ComponentResolver, 
    private viewContainer: ViewContainerRef) {

  }

  ngOnInit() {
    this.map = L.mapbox.map('map', 'mapbox.streets').setView([40, -74.50], 9);
    var cssIcon = L.divIcon({
      // Specify a class name we can refer to in CSS.
      className: 'css-icon',
      html: `<marker-component></marker-component>`,
      iconSize: [60, 60]
    });
    L.marker([40, -74.50], {icon: cssIcon}).addTo(this.map);

    this.compiler.resolveComponent(MarkerComponent).then((factory) => 
        this.viewContainer.createComponent(factory, 0, this.viewContainer.injector)); 
  }
}

bootstrap(App, [...HTTP_PROVIDERS]).catch(err => console.error(err));

Answer 1

也许你应该使用这个

    const injector = ReflectiveInjector.fromResolvedProviders([], this._viewContainer.parentInjector);
this._currentComponentRef = this._viewContainer.createComponent(factory, 0, injector, []);

而不是

this.viewContainer.createComponent(factory, 0, this.viewContainer.injector));

看看这里 http://blog.lacolaco.net/post/dynamic-component-creation-in-angular-2/

如何将Angular2组件动态加载到div

1 个答案: