我们假设我们有一个单页面的程序,并且想为这个页面添加动画效果。点击某一个链接会将一个试图滑出,同时将另一个试图滑入。
我们将会使用:
- 使用 ngRoute 来为我们的页面路由
- 使用 ngAnimate 来为页面创建动画效果
- 对页面使用 CSS Animations
- 当我们离开或进入试图时,我们的每一个页面会有不同的动画效果
让我们看一下ngAnimate是如何工作的。ngAnimate 会根据是进入还是离开视图来为不同的Angular 指令(directive)添加和移除不同的CSS类名。例如,当我们加载网站时,无论ng-view中填充了什么都会得到一个.ng-enter的类名。
我们所需要做的就是给.ng-enter 类名添加CSS动画效果,该动画在进入的时候会自动生效。
ngAnimate 可以应用于: ngRepeat, ngInclude, ngIf, ngSwitch, ngShow, ngHide, ngView 以及 ngClass
需要的文件列表:
- index.html - style.css - app.js - page-home.html - page-about.html - page-contact.html index.html,
加载我们需要的资源,定义我们的Angular app,并且为我们注入的视图添加ng-view类名。
<html> <head> <!-- CSS --> <!-- load bootstrap (bootswatch version) --> <link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootswatch/3.1.1/readable/bootstrap.min.css"> <link rel="stylesheet" href="style.css"> <!-- JS --> <!-- load angular, ngRoute, ngAnimate --> <script type="text/javascript" src="http://apps.bdimg.com/libs/angular.js/1.2.13/angular.min.js"></script> <script src="http://lib.baomitu.com/angular.js/1.2.13/angular-route.min.js"></script> <script src="http://lib.baomitu.com/angular.js/1.2.13/angular-animate.min.js"></script> <script src="app.js"></script> </head> <!-- apply our angular app --> <body ng-app="animateApp"> <!-- inject our views using ng-view --> <!-- each angular controller applies a different class here --> <div class="page {{ pageClass }}" ng-view></div> </body> </html>
app.js
现在,我们需要将会创建一个带路由的Angular程序,以便我们可以在不刷新页面的情况下修改我们的页面。
// define our application and pull in ngRoute and ngAnimate var animateApp = angular.module(‘animateApp‘, [‘ngRoute‘, ‘ngAnimate‘]); // ROUTING =============================================== // set our routing for this application // each route will pull in a different controller animateApp.config(function($routeProvider) { $routeProvider // home page .when(‘/‘, { templateUrl: ‘page-home.html‘, controller: ‘mainController‘ }) // about page .when(‘/about‘, { templateUrl: ‘page-about.html‘, controller: ‘aboutController‘ }) // contact page .when(‘/contact‘, { templateUrl: ‘page-contact.html‘, controller: ‘contactController‘ }); }); // CONTROLLERS ============================================ // home page controller animateApp.controller(‘mainController‘, function($scope) { $scope.pageClass = ‘page-home‘; }); // about page controller animateApp.controller(‘aboutController‘, function($scope) { $scope.pageClass = ‘page-about‘; }); // contact page controller animateApp.controller(‘contactController‘, function($scope) { $scope.pageClass = ‘page-contact‘; });
page-home.html
<!-- page-home.html --> <h1>Angular Animations Shenanigans</h1> <h2>Home</h2> <a href="#about" class="btn btn-success btn-lg">About</a> <a href="#contact" class="btn btn-danger btn-lg">Contact</a>
page-about.html
<!-- page-about.html --> <h1>Animating Pages Is Fun</h1> <h2>About</h2> <a href="#" class="btn btn-primary btn-lg">Home</a> <a href="#contact" class="btn btn-danger btn-lg">Contact</a>
page-contact.html
<!-- page-contact.html --> <h1>Tons of Animations</h1> <h2>Contact</h2> <a href="#" class="btn btn-primary btn-lg">Home</a> <a href="#about" class="btn btn-success btn-lg">About</a>
style.css
/* make our pages be full width and full height */ /* positioned absolutely so that the pages can overlap each other as they enter and leave */ .page { bottom: 0; padding-top: 200px; position: absolute; text-align: center; top: 0; width: 100%; } .page h1 { font-size: 60px; } .page a { margin-top: 50px; } /* PAGES (specific colors for each page) ============================================================================= */ .page-home { background: #00D0BC; color: #00907c; } .page-about { background: #E59400; color: #a55400; } .page-contact { background: #ffa6bb; color: #9e0000; } /* ANIMATIONS ============================================================================= */ .ng-enter { animation: scaleUp 0.5s both ease-in; z-index: 8888; } .ng-leave { animation: slideOutLeft 0.5s both ease-in; z-index: 9999; } .ng-enter { z-index: 8888; } .ng-leave { z-index: 9999; } /* page specific animations ------------------------ */ /* home -------------------------- */ .page-home.ng-enter { animation: scaleUp 0.5s both ease-in; } .page-home.ng-leave { transform-origin: 0% 0%; animation: rotateFall 1s both ease-in; } /* about ------------------------ */ .page-about.ng-enter { animation: slideInRight 0.5s both ease-in; } .page-about.ng-leave { animation: slideOutLeft 0.5s both ease-in; } /* contact ---------------------- */ .page-contact.ng-leave { transform-origin: 50% 50%; animation: rotateOutNewspaper .5s both ease-in; } .page-contact.ng-enter { animation: slideInUp 0.5s both ease-in; } /* leaving animations ----------------------------------------- */ /* rotate and fall */ @keyframes rotateFall { 0% { transform: rotateZ(0deg); } 20% { transform: rotateZ(10deg); animation-timing-function: ease-out; } 40% { transform: rotateZ(17deg); } 60% { transform: rotateZ(16deg); } 100% { transform: translateY(100%) rotateZ(17deg); } } /* slide in from the bottom */ @keyframes slideOutLeft { to { transform: translateX(-100%); } } /* rotate out newspaper */ @keyframes rotateOutNewspaper { to { transform: translateZ(-3000px) rotateZ(360deg); opacity: 0; } } /* entering animations --------------------------------------- */ /* scale up */ @keyframes scaleUp { from { opacity: 0.3; -webkit-transform: scale(0.8); } } /* slide in from the right */ @keyframes slideInRight { from { transform: translateX(100%); } to { transform: translateX(0); } } /* slide in from the bottom */ @keyframes slideInUp { from { transform: translateY(100%); } to { transform: translateY(0); } }
我们将使用CSS来添加所有的动画效果。这种方法很棒,因为我们所要做的事就是添加ngAnimate,并且不用修改我们的代码就可以添加CSS动画效果。
ngAnimate为我们的ng-view添加的两个类分别是.ng-enter和.ng-leave。你可以想象一些他们各自的作用。
我们定义了6个不同的动画效果。每一个页面都会有他们各自的ng-enter 和 ng-leave 的动画效果。
时间: 2024-10-24 17:16:16