您需要创建一个模态服务才能使下面的示例正常工作。
ModalComponent
import { Component, ElementRef, Input, OnInit,ViewChild, OnDestroy } from '@angular/core';
import {ModalService} from './modal.service';
@Component({
selector: 'app-modal',
templateUrl: './modal.component.html'
})
export class ModalComponent implements OnInit, OnDestroy {
@Input() id: string;
private element: any;
@ViewChild('basicModal') basicModal: ElementRef;
constructor(private modalService: ModalService, private el: ElementRef) {
this.element = el.nativeElement;
}
ngOnInit(): void {
let modal = this;
// ensure id attribute exists
if (!this.id) {
console.error('modal must have an id');
return;
}
// add self (this modal instance) to the modal service so it's accessible from controllers
this.modalService.add(this);
}
// remove self from modal service when directive is destroyed
ngOnDestroy(): void {
this.modalService.remove(this.id);
this.element.remove();
}
// open modal
open(): void {
this.basicModal.show();
}
// close modal
close(): void {
this.basicModal.hide()
}
}
而且这是HTML
<div mdbModal #basicModal="mdbModal" class="modal fade right" tabindex="-1" role="dialog" aria-labelledby="myBasicModalLabel"
aria-hidden="true">
<div class="modal-dialog modal-full-height modal-right" role="document">
<div class="modal-content">
<div class="modal-header">
<h4 class="modal-title w-100" id="myModalLabel">Modal title</h4>
<button type="button" class="close pull-right" aria-label="Close" (click)="basicModal.hide()">
<span aria-hidden="true">×</span>
</button>
</div>
<div class="modal-body">
<ng-content></ng-content>
</div>
<div class="modal-footer">
<button type="button" mdbBtn color="secondary" class="waves-light" aria-label="Close" (click)="basicModal.hide()" mdbWavesEffect>Close</button>
<button type="button" mdbBtn color="primary" class="relative waves-light" mdbWavesEffect>Save!</button>
</div>
</div>
</div>
</div>
以下是模态服务代码
import { Injectable } from '@angular/core';
@Injectable()
export class ModalService {
private modals: any[] = [];
add(modal: any) {
this.modals.push(modal);
}
remove(id: string) {
this.modals = this.modals.filter(x => x.id !== id);
}
open(id: string) {
let modal: any = this.modals.filter(x => x.id === id)[0];
modal.open();
}
close(id: string) {
let modal: any = this.modals.filter(x => x.id === id)[0];
modal.close();
}
}
在你的实际组件中这样使用它:
import { Component } from '@angular/core';
import {ModalService} from './modal/modal.service';
@Component({
selector: 'my-app',
templateUrl: './app.component.html',
styleUrls: [ './app.component.css' ]
})
export class AppComponent {
private bodyText: string;
constructor(private modalService: ModalService) {
}
ngOnInit() {
this.bodyText = 'This text can be updated in modal 1';
}
openModal(id: string) {
this.modalService.open(id);
}
closeModal(id: string) {
this.modalService.close(id);
}
}
并且它的HTML代码
<div class="col-md-6 col-md-offset-3">
<h1>Home</h1>
<p>{{bodyText}}</p>
<button (click)="openModal('custom-modal-1')">Open Modal 1</button>
<button (click)="openModal('custom-modal-2')">Open Modal 2</button>
</div>
<app-modal id="custom-modal-1">
<h1>A Custom Modal!</h1>
<p>Home page text: <input type="text" [(ngModel)]="bodyText" /></p>
<button (click)="closeModal('custom-modal-1');">Close</button>
</app-modal>
<app-modal id="custom-modal-2">
<h1>A Custom Modal!</h1>
</app-modal>