我有一个要在删除时设置动画的对象数组:
<div [@arrayAnim]="motives.length">
<div class="motive" *ngFor="let motive of motives"><div>
<div class="motive-name">{{motive.name}}</div>
...
<mat-icon class="delete-icon" (click)="deleteMotive(motive)">delete</mat-icon>
</div>
在组件动画中,我构建了一个数组动画触发器,如下所示:
@Component({
selector: 'app-motives',
templateUrl: './motives.component.html',
styleUrls: ['./motives.component.scss'],
animations: [
trigger('arrayAnim', [
transition('* => *', [
query(':leave', stagger('300ms', [
animate('500ms ease-out', keyframes([
style({opacity: 1, transform: 'scale(1.1)', offset:0}),
style({opacity: .5, transform: 'scale(.5)', offset: .3}),
style({opacity: 0, transform: 'scale(0)', offset:1})
]) )
]), {optional: true})
])
])
]
})
当siwtching路由时,即使我没有删除数组的任何元素,也会触发转换。我不了解这种行为。为什么在更改路线时触发动画?
我在stackblitz上创建了一个最小的示例:
https://stackblitz.com/edit/angular-ivy-wdyzlh?file=src/app/prices/prices.component.ts
从价格到产品再到价格路线的转换将触发意外行为。删除价格将按预期工作。
更新
正如评论中所建议的,我可以将arrayAnim div包装在另一个将基于组件变量禁用动画的区域中。
<div [@.disabled]="noAnimation">
<div [@arrayAnim]="motives.length" (@arrayAnim.done)="onAnimationDone()">
<div class="motive" *ngFor="let motive of motives"><div>
<div class="motive-name">{{motive.name}}</div>
...
<mat-icon class="delete-icon" (click)="deleteMotive(motive)">delete</mat-icon>
</div>
</div>
在我的组件中,我将具有一个noAnimation属性,一旦删除完成,该属性将切换为true。触发deleteMotive()方法时,no animation属性将设置为false
答案 0 :(得分:1)
尝试一下:
if ($this.hasClass('fa-plus-square')) {
$this.removeClass('fa-plus-square').addClass('fa-minus-square');
$showMoreElement.css('display', 'table-row-group');
}
Component.ts:
<div [@.disabled]="noAnimation">
<div [@arrayAnim]="priceArray.length">
<div *ngFor="let p of priceArray" class="price" (click)="deletePrice(p)">
Regular: {{p.regular}}
Discounted: {{p.discounted}}
</div>
</div>
</div>
<p>Click on a price to delete it</p>