Angular4.0动画操作实例详解

import { BrowserModule } from '@angular/platform-browser';
import {BrowserAnimationsModule} from '@angular/platform-browser/animations';
@NgModule({
  ...
 imports: [
 BrowserModule,
 BrowserAnimationsModule,
 AppRouting
 ],
 ...
})

@Component({
 selector: 'app-root',
 templateUrl: './app.component.html',
 styleUrls: ['./app.component.css'],
 animations: [] // 这里代码我省略了，先说一下结构，后面说具体实现。
})

import {RouterModule, Routes} from '@angular/router';
import {HomeComponent} from "./home/home.component";
import {AboutComponent} from "./about/about.component";
const routes: Routes = [
 { path: '', redirectTo: 'home', pathMatch: 'full' },
 { path: 'home', component: HomeComponent, data: { state: 'home' } },
 { path: 'about', component: AboutComponent, data: { state: 'about' } }
];
export const AppRouting = RouterModule.forRoot(routes, {
 useHash: true
});

<nav>
 <a routerLink="home" routerLinkActive="active">Home</a>
 <a routerLink="about" routerLinkActive="active">About</a>
</nav>
<main [@routerTransition] = "gg(o)">
 <router-outlet #o="outlet"></router-outlet>
</main>
<div [@queryAnimation]="goAnimate()">
 <div class="content">
 Blah blah blah
 </div>
 <h1>Title</h1>
</div>
 <!-- 
 [@routerTransition]="gg(o)" ,api：transition declares the sequence of animation steps that will be run when the provided stateChangeExpr value is satisfied. stateChangeExpr即等号左边即动画名称，注意中括号和@符不能省略，等号右边是一个函数，也可以是变量，满足条件便可以让动画进行，一个动画可以多次使用 
 -->

import { Component } from '@angular/core';
import {routerTransition} from './router.animation';
import {animate, group, query, stagger, style, transition, trigger} from "@angular/animations";
@Component({
 selector: 'app-root',
 templateUrl: './app.component.html',
 styleUrls: ['./app.component.css'],
 animations: [
 trigger('routerTransition', [ // 第一个参数是动画名称 stateChangeExpr
  transition('* <=> *', [ // 指定什么时候执行动画，状态的来源可以是简单的对象属性，也可以是由方法计算出来的值。重点是，我们得能从组件模板中读取它。官网上有提供一些通配符，[传送门](https://angular.cn/api/animations/transition)
  query(':enter, :leave', style({ position: 'fixed', width: '100%' }), { optional: true }),
  query('.block', style({ opacity: 0 }), { optional: true }),
  group([ // block executes in parallel
      query(':enter', [style({ transform: 'translateX(100%)' }),
      animate('0.5s ease-in-out', style({ transform: 'translateX(0%)' }))], { optional: true }),
      query(':leave', [style({ transform: 'translateX(0%)' }),
      animate('0.5s ease-in-out', style({ transform: 'translateX(-100%)' }))], { optional: true })
     ]),
   query(':enter .block', stagger(400, [style({ transform: 'translateY(100px)' }),
      animate('1s ease-in-out', style({ transform: 'translateY(0px)', opacity: 1 })),
    ]), { optional: true }),
  ])
 ]),
]
})
export class AppComponent {
 public exp = '';
 gg(outlet) { // 传递进入的组件的信息
 console.log(outlet.activatedRouteData.state);
 return outlet.activatedRouteData.state;
 }
}

<div [@queryAnimation]="goAnimate()">
 <h1>Title</h1>
 <div class="content">
 Blah blah blah
 </div>
</div>

import { Component } from '@angular/core';
import {animate, group, query, stagger, state, style, transition, trigger} from "@angular/animations";
@Component({
 selector: 'app-root',
 templateUrl: './app.component.html',
 styleUrls: ['./app.component.css'],
 animations: [
 trigger('queryAnimation', [
  transition('* => *', [
   query('h1', style({ opacity: 0 , color: 'red'})),
   query('.content', style({ opacity: 0, color: 'green', width: '100px', height: '100px', border: '1px solid red' })),
   query('h1', animate(1000, style({ opacity: 1, color: ' blue' }))),
   query('.content', animate(1000, style({ opacity: 1, width: '50px', height: '100px', border: '10px solid green'})),
    {optional: true}),
 ]),
  transition(':leave', [
  style({color: 'pink'}),
  animate(2000)
  ])
]),
]
})
export class AppComponent {
 public gg: string;
 constructor() {
 }
 goAnimate() {
 return true;
 }
}