import { BrowserAnimationsModule } from '@angular/platform-browser/animations';

imports: [BrowserAnimationsModule],

import { animate, AnimationEntryMetadata, state, style, transition, trigger } from'@angular/core';
// Component transition animations
export const slideInDownAnimation: AnimationEntryMetadata =
// 动画触发器名称
trigger('routeAnimation', [
  state('*',
    style({
      opacity: 1,
      transform: 'translateX(0)'
    })
  ),
  transition(':enter', [
    style({
      opacity: 0,
      transform: 'translateX(-100%)'
    }),
    animate('0.2s ease-in')
  ]),
  transition(':leave', [
    animate('0.5s ease-out', style({
      opacity: 0,
      transform: 'translateY(100%)'
    }))
  ])
]);

  // 添加@HostBinding属性添加到类中以设置这个路由组件元素的动画和样式
  @HostBinding('@routeAnimation') routeAnimation = true;
  @HostBinding('style.display') display = 'block';
  @HostBinding('style.position') position = 'absolute';