Angular - mat-tab 中的动态组件

Question

我有一个 mat-tab-group ( Angular Material )，我希望能够从 mat-tabs 后面的代码添加，包括其他组件。我正在使用 ComponentFactoryResolver 创建组件，但无法通过 ViewContainerRef 将新组件添加到新的 mat-tab

html

<mat-tab-group>
 <mat-tab *ngFor="let tab of tabs"  [label]="tab.title">
  <div #test></div>
 </mat-tab>
</mat-tab-group>

隐藏代码

private open(type:string):void{
 var tab = {title:'test'};
 this.tabs.push(tab);

 const factory = this.componentFactoryResolver.resolveComponentFactory(DiscountGridComponent );
 //this will add it in the end of the view
 const newComponentRef = this.viewContainerRef.createComponent(factory);
}

Answer 1

想分享我的想法，以防对其他人有帮助:

export class DynamicTabComponent implements AfterViewInit {
    public tabs = [ComponentOne, ComponentTwo];

    @ViewChild('container', {read: ViewContainerRef, static: false}) public viewContainer: ViewContainerRef;

    constructor(private componentFactoryResolver: ComponentFactoryResolver) {
    }

    public ngAfterViewInit(): void {
        this.renderComponent(0);
    }

    public tabChange(index: number) {
        setTimeout(() => {
            this.renderComponent(index);
        });
    }

    private renderComponent(index: number) {
        const factory = this.componentFactoryResolver.resolveComponentFactory(this.components[index]);
        this.viewContainer.createComponent(factory);
    }
}

模板:

<mat-tab-group (selectedIndexChange)="tabChange($event)">
    <mat-tab label="Tab" *ngFor="let component of components">
        <ng-template matTabContent>
            <div #container></div>
        </ng-template>
    </mat-tab>
</mat-tab-group>