AngularJS停止定时器$interval

来源：互联网发布：js简繁体切换编辑：程序博客网时间：2024/05/29 17:23

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

（2）点击开始

（3）点击停止

（4）点击重置

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

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