这种事情有很多解决方案。请我使用ngComponentOutlet
.
这是选项卡容器:
import {Component, Input} from '@angular/core'
import {TabContentAlternativeComponent} from './tab-content-alternative.component'
import {BasicContent} from './basic-content'
@Component({
selector: 'tab',
template: ''
})
export class TabComponent {
@Input() title: string;
@Input() contentRef: BasicContent;
active = false;
}
这是一个非常简单的组件,它知道自己的选项卡名称、活动状态和当有人选择选项卡时应该加载的主体组件引用。
然后我们创建几个将动态加载的 body 组件:
export class BasicContent {
}
组件 1
import {Component, Input, OnInit} from '@angular/core'
import {BasicContent} from './basic-content'
@Component({
selector: 'tab-content',
template: `
<p>Hey</p>
`,
})
export class TabContentComponent extends BasicContent {
}
组件 2
import {Component, Input} from '@angular/core'
import {BasicContent} from './basic-content'
@Component({
selector: 'tab-content-alternative',
template: `
<p>Hey, this is an alternative content</p>
`,
})
export class TabContentAlternativeComponent extends BasicContent {
}
这是带有标签渲染的标签容器组件和用于动态主体组件的空占位符:
import {AfterContentInit, Component, ContentChildren, QueryList} from '@angular/core'
import {TabComponent} from './tab.component'
import {BasicContent} from 'basic-content'
import 'rxjs/Rx';
import {Observable, BehaviorSubject} from 'rxjs/Rx';
@Component({
selector: 'tab-container',
template: `
<div class="tab-header">
<div class="tab" *ngFor="let tab of tabs" (click)="selectTab(tab)" [class.active]="tab.active">{{tab.title}}</div>
</div>
<div class="tab-content">
<ng-container *ngComponentOutlet="content | async"></ng-container>
</div>
`,
})
export class TabContainerComponent implements AfterContentInit {
@ContentChildren(TabComponent) tabs: QueryList<TabComponent>;
private contentSbj = new BehaviorSubject<BasicContent>(null);
content = this.contentSbj.asObservable();
ngAfterContentInit() {
const activeTabs = this.tabs.filter((tab) => tab.active);
if (activeTabs.length === 0) {
this.selectTab(this.tabs.first);
}
}
selectTab(tab: TabComponent) {
this.tabs.toArray().forEach(tab => tab.active = false);
tab.active = true;
this.contentSbj.next(tab.contentRef);
}
}
标题映射
import {TabContentComponent} from './tab-content.component';
import {TabContentAlternativeComponent} from './tab-content-alternative.component';
interface TitleMapping {
title: string;
contentComponent: BasicContent;
}
export const allTabs: TitleMapping[] = [
{title: "Tab 1", contentComponent: TabContentComponent},
{title: "Tab 2", contentComponent: TabContentAlternativeComponent},
{title: "Tab 3", contentComponent: TabContentComponent}
]
这就是它在某些父组件中的使用方式:
import {TabContentComponent} from './tab/tab-content.component'
import {TabContentAlternativeComponent} from './tab/tab-content-alternative.component'
@Component({
selector: 'my-app',
template: `
<tab-container>
<tab title="Tab 1" [contentRef]="normalContent"></tab>
<tab title="Tab 2" [contentRef]="alternativeContent"></tab>
</tab-container>
`,
})
export class App {
normalContent = TabContentComponent;
alternativeContent = TabContentAlternativeComponent;
}
这是工作Plunkr
我已经在我的项目中使用了它,并且可以根据您的要求正常工作。