如何在AngularJS中加载内容时添加微调器？

Question

我在加载内容时使用按钮微调器,当用户点击"搜索"按钮时会加载内容,此时buttonLabel将更改为"搜索"并显示微调器(此处按钮将被禁用).加载后内容(Promise已解决)buttonLabel将恢复为"搜索"(此处将启用按钮).

我尝试了下面的代码,但它始终显示微调器.

HTML:

<button class="btn btn-xs btn btn-blue" ng-click="show()">
  <span><i class="glyphicon glyphicon-off"></i></span> {{buttonLabel}}
</button>

脚本:

$scope.buttonLabel = "Search";
$scope.show = function() {
  $scope.buttonLabel = "Searching";
  $scope.test = TestService.getList( $cookieStore.get('url'),
    $rootScope.resourceName+"/students" );
    $scope.test.then( function( data ) {
      if( data.list ) {
        $scope.testData = data.list;
        $scope.buttonLabel = "Search";
      }
    }
  }

更新小提琴: http ://jsfiddle.net/xc6nx235/18/

Answer 1

<div ng-app="formDemo" ng-controller="LocationFormCtrl">
<div>
    <button type="submit" class="btn btn-primary" ng-click="search()"> 
        <span ng-show="searchButtonText == 'Searching'"><i class="glyphicon glyphicon-refresh spinning"></i></span>
        {{ searchButtonText }}
    </button>
</div>

您需要做的就是使用ng-show或ng-hide指令.

NG-节目= "表达"

<span ng-show="searchButtonText == 'Searching'">
    <i class="glyphicon glyphicon-refresh spinning"></i>
</span>

只有在searchButtonText字符串'Searching' 时才会显示此范围.

您应该了解有关angular指令的更多信息.它们将来会很有用.

祝好运.

演示http://jsfiddle.net/xc6nx235/16/

Answer 2

使用ng-show显示(或不)装载机ng-show="test":

的jsfiddle

// http://icelab.com.au/articles/levelling-up-with-angularjs-building-a-reusable-click-to-edit-directive/

angular.module("formDemo", [])

.controller("LocationFormCtrl", function ($scope, $timeout) {
    $scope.searchButtonText = "Search";
$scope.test="false";
$scope.search = function() {
    $scope.test="true";
     $scope.searchButtonText = "Searching";
    $timeout(function(){
        $scope.test="false";
        $scope.searchButtonText = "Search";
    },1000)
    // Do your searching here
}
});

body {
    font-family:"HelveticNeue", sans-serif;
    font-size: 14px;
    padding: 20px;
}
h2 {
    color: #999;
    margin-top: 0;
}
.field {
    margin-bottom: 1em;
}
.click-to-edit {
    display: inline-block;
}
input {
    display: initial !important;
    width: auto !important;
    margin: 0 5px 0 0 !important;
}

.glyphicon.spinning {
    animation: spin 1s infinite linear;
    -webkit-animation: spin2 1s infinite linear;
}

@keyframes spin {
    from { transform: scale(1) rotate(0deg);}
    to { transform: scale(1) rotate(360deg);}
}

@-webkit-keyframes spin2 {
    from { -webkit-transform: rotate(0deg);}
    to { -webkit-transform: rotate(360deg);}
}

<link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/foundation/4.1.6/css/foundation.min.css">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">

<!-- Optional theme -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap-theme.min.css">

<!-- Latest compiled and minified JavaScript -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.0.7/angular.min.js"></script> 
<script src="https://rawgithub.com/angular-ui/angular-ui/master/build/angular-ui.js"></script>
  
<div ng-app="formDemo" ng-controller="LocationFormCtrl">
    <div>
    <button type="submit" class="btn btn-primary" ng-click="search()">
       <span ng-show="test" ><i class="glyphicon glyphicon-refresh spinning"></i></span>
        {{ searchButtonText }}
    </button>
</div>    
</div>