详解AngularJS ng-class样式切换

<ion-view>   <ion-content>     <div class="button-bar">       <div ng-class="{true: 'bgstyle-check', false: 'bgstyle'}[isFirst]" ng-click="isFirst = !isFirst">First</div>       <div ng-class="{true: 'bgstyle-check', false: 'bgstyle'}[isSecond]" ng-click="isSecond = !isSecond">Second</div>       <div ng-class="{true: 'bgstyle-check', false: 'bgstyle'}[isThird]" ng-click="isThird = !isThird">Third</div>     </div>     <br><br>     <div class="button-bar">       <div ng-class="{true: 'bgstyle-check', false: 'bgstyle'}[hasAll]" ng-click="toggleAll()">All</div>       <div ng-class="{true: 'bgstyle-check', false: 'bgstyle'}[hasFirst]" ng-click="toggleFirst()">First</div>       <div ng-class="{true: 'bgstyle-check', false: 'bgstyle'}[hasSecond]" ng-click="toggleSecond()">Second</div>       <div ng-class="{true: 'bgstyle-check', false: 'bgstyle'}[hasThird]" ng-click="toggleThird()">Third</div>     </div>   </ion-content> </ion-view> <style>   .bgstyle {background-color: #8f8f8f;width: 100%;height: 20px;margin: 2px 0 2px 0;text-align: center;}   .bgstyle-check {background-color: #ff3b30;width: 100%;height: 20px;margin: 2px 0 2px 0;text-align: center;} </style> 

appControllers.controller('TestlCtrl', function ($scope, $state) {   $scope.isFirst = false;   $scope.isSecond = false;   $scope.isThird = false;     $scope.hasAll = false;   $scope.hasFirst = false;   $scope.hasSecond = false;   $scope.hasThird = false;    $scope.toggleAll = function () {     $scope.hasAll = !$scope.hasAll;     console.log($scope.hasAll);     var dynamicValue = $scope.hasAll;     $scope.hasFirst = dynamicValue;     $scope.hasSecond = dynamicValue;     $scope.hasThird = dynamicValue;   }    $scope.toggleFirst = function () {     $scope.hasFirst = !$scope.hasFirst;     checkAll();   }    $scope.toggleSecond = function () {     $scope.hasSecond = !$scope.hasSecond;     checkAll();   }    $scope.toggleThird = function () {     $scope.hasThird = !$scope.hasThird;     checkAll();   }    function checkAll() {     if ($scope.hasFirst == true && $scope.hasSecond == true && $scope.hasThird == true) {       console.log("123ok");       $scope.hasAll = true;     } else {       console.log("123no");       $scope.hasAll = false;     }    } }) 

<div class="category-tab ">   <ul>     <li ng-repeat="item in rootList" ng-class="{true: 'cur', false: ''}[$index+1===1]">       <a href="">{{item.CategoryName}}</a>     </li>     <li><a href="">热门推荐</a></li>     <li><a href="">热门推荐</a> </li>   </ul> </div> 

<ion-item class="item-divider">   <i ng-class="{true: 'icon ion-tips mr10', false: 'iconfont icon-shangdian text-orange mr10'}[item.VendorId==0]">     <element ng-show="item.VendorId==0">合作</element></i>{{item.VendorName}} </ion-item>