AngularJS停止定时器$interval

1、问题背景

设置一个定时器，给定两个变量startData和endData，计时开始后分别减去5和50；单击停止暂停定时器，重置后数据恢复到原来的数据。

2、实现源码

 
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 <!DOCTYPE html>  
 <html>  
     <head>  
         <meta charset="UTF-8">  
         <title>AngularJS停止定时器</title>  
         <script src="http://cdn.static.runoob.com/libs/angular.js/1.4.6/angular.min.js"></script>  
         <script>  
             var app = angular.module("intervalApp",[]);  
             app.controller("intervalController",["$scope","$interval",function($scope,$interval){  
                 $scope.startData = 100;  
                 $scope.endData = 1000;  
                   
                 var stopEvent;  
                   
                 $scope.startEvent = function(){  
                     if(angular.isDefined(stopEvent)) return;  
                       
                     stopEvent = $interval(function(){  
                         if($scope.startData > 50 && $scope.endData > 500)  
                         {  
                             $scope.startData = $scope.startData - 5;  
                             $scope.endData = $scope.endData - 50;  
                         }  
                         else  
                         {  
                             $scope.stopClick();  
                         }  
                     },1000)  
                 };  
                   
                 $scope.stopClick = function(){  
                     if(angular.isDefined(stopEvent))  
                     {  
                         $interval.cancel(stopEvent);  
                         stopEvent = undefined;  
                     }  
                 };  
                   
                 $scope.resetEvent = function(){  
                     $scope.startData = 100;  
                     $scope.endData = 1000;  
                 };  
                   
                 $scope.$on("$destory",function(){  
                     $scope.stopClick();  
                 });  
             }]);  
         </script>  
     </head>  
     <body ng-app="intervalApp">  
         <div ng-controller="intervalController">  
             <button data-ng-click="startEvent()">开始</button>  
             <button data-ng-click="stopClick()">停止</button>  
             <button data-ng-click="resetEvent()">重置</button><br>  
             <div>开始数据：{{startData}}</div><br>  
             <div>结束数据：{{endData}}</div><br>  
         </div>  
     </body>  
 </html>  

3、实现结果

（1）初始化

AngularJS停止定时器$interval

（2）点击开始

AngularJS停止定时器$interval

（3）点击停止

AngularJS停止定时器$interval

（4）点击重置

AngularJS停止定时器$interval

转自：http://blog.csdn.net/you23hai45/article/details/52771974

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AngularJS停止定时器$interval

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