个人总结
前言: 今天周末,闲来无事又看了看拦截器,发现不只是截获http请求,同样还可以制作很多好玩的东西,今天来写一个loading案例,请求http或者跳转渲染页面时,会有一定的等待时间,可能一两秒,也可能是十几秒,在等待的过程中,用户是不知道的,所以我们要给用户一个直观的等待效果,让用户知道!
步骤(需要引入的文件)
第一步: 引入bootstrap.css
第二步: 引入jquery库
第三步: 引入angular.js
第四步: 引入angular-ui-router.js
第五步: 引入angular-animate.js
下面看代码(需要的直接复制看效果就好!)
<!DOCTYPE html>
<html lang="zh-CN" ng-app="myApp">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="../../angularjs/bootstrap-3.3.7-dist/css/bootstrap.min.css">
<style type="text/css">
.mask-loading .loading-icon {
-webkit-animation: rotate 1s linear infinite;
-o-animation: rotate 1s linear infinite;
animation: rotate 1s linear infinite;
position: absolute;
top: 50%;
left: 50%;
width: 30px;
height: 30px;
margin: -20px 0 0 -20px;
border-width: 5px;
border-style: solid;
border-color: #37c3aa #37c3aa #fff #fff;
opacity: .9;
border-radius: 20px;
}
@-webkit-keyframes rotate{
0% {-webkit-transform:rotate(0)}
100% {-webkit-transform:rotate(360deg)}
}
@keyframes rotate{
0% {transform:rotate(0)}
100% {transform:rotate(360deg)}
}
.mask-loading {
position:fixed;
top:0;
right:0;
bottom:0;
left:0;
background:0 0;
z-index:9999;
}
</style>
</head>
<body>
<h1>index</h1>
<div id="mask-loading" class="mask-loading" ng-if="loading" style="background-color: rgba(0, 0, 0, 0.17);">
<div class="loading-icon"></div>
</div>
<div ui-view></div>
<a ui-sref="a">go to a.html</a>
<br/>
<a ui-sref="b">go to b.html</a>
<script src="../../angularjs/jquery-1.12.4.js"></script>
<script src="../../angularjs/angular-1.5.8/angular.min.js"></script>
<script type="text/javascript" src="./angular-animate.js"></script>
<script type="text/javascript" src="./angular-ui-router.js"></script>
<script type="text/javascript">
var myApp = angular.module('myApp',['ui.router', 'ngAnimate']);
myApp.config(["$stateProvider", "$httpProvider", '$urlRouterProvider', function ($stateProvider, $httpProvider, $urlRouterProvider) {
$stateProvider
.state('a', {
url: '/a',
templateUrl: "./a.html",
controller: "aController"
})
.state('b', {
url: '/b',
templateUrl: "./b.html",
controller: "bController"
});
$urlRouterProvider.otherwise('/');
$httpProvider.interceptors.push('myInterceptor');
}]);
//loading拦截器
myApp.factory('myInterceptor', ["$rootScope", function ($rootScope) {
var timestampMarker = {
request: function (config) { //请求前或跳转前或渲染后
$rootScope.loading = true; // loading特效容器为true 显示
return config;
},
response: function (response) { // 请求后或跳转后或渲染后
setTimeout(function(){//由于并没有调接口,所以体现不出来时间差距,为了体现有时间差,这里用到了定时器,
$rootScope.$apply(function(){ //重新脏检查
$rootScope.loading = false;
});
},2000);
return response;
}
};
return timestampMarker;
}]);
myApp.controller('aController', function($scope) {
$scope.page = "a";
});
myApp.controller('bController', function($scope) {
$scope.page = "b";
});
</script>
</body>
</html>