如何在AngularJS中动态更改CSS属性 | 如何在AngularJS中动态更改CSS属性

本文介绍了如何在AngularJS中动态更改CSS属性的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

现在，我有一个背景图像URL硬编码到CSS中.我想使用AngularJS中的逻辑动态选择背景图片.这是我目前拥有的:

Right now I have a background image URL hard-coded into CSS. I'd like to dynamically choose a background image using logic in AngularJS. Here is what I currently have:

HTML

<div class="offer-detail-image-div"><div>

CSS

.offer-detail-image-div {
  position: relative;
  display: block;
  overflow: hidden;
  max-width: 800px;
  min-height: 450px;
  min-width: 700px;
  margin-right: auto;
  margin-left: auto;
  padding-right: 25px;
  padding-left: 25px;
  -webkit-box-flex: 1;
  -webkit-flex: 1;
  -ms-flex: 1;
  flex: 1;
  border-radius: 5px;
  background-image: url('/assets/images/118k2d049mjbql83.jpg');
  background-position: 0px 0px;
  background-size: cover;
  background-repeat: no-repeat;
}

如您所见，CSS中的背景图像引用了特定的文件位置.我希望能够以编程方式确定图像URL的位置.我真的不知道从哪里开始.我不知道JQuery.谢谢.

As you can see, the background image in the CSS references a specific file location. I want to be able to programmatically determine the location of the image URL. I really don't know where to begin. I do not know JQuery. Thank you.

推荐答案

您可以使用ng-style使用AngularJS动态更改CSS类属性.

You can use ng-style to dynamically change a CSS class property using AngularJS.

希望这个ng样式的示例至少可以帮助您理解概念.

Hope this ng-style example will help you to understand the concept at least.

有关 ngStyle

var myApp = angular.module('myApp', []);
myApp.controller("myAppCtrl", ["$scope", function($scope) {
      $scope.colors = ['#C1D786', '#BF3978', '#15A0C6', '#9A2BC3'];
      $scope.style = function(value) {
          return { "background-color": value };
      }
}]);

ul{
  list-style-type: none;
  color: #fff;
}
li{
  padding: 10px;
  text-align: center;
}
.original{
  background-color: red;
}

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<body ng-app="myApp">
<div ng-controller="myAppCtrl">
  <div class="container">
    <div class="row">
      <div class="span12">
        <ul>
          <li ng-repeat="color in colors">
            <h4 class="original" ng-style="style(color)"> {{ color }}</h4>
          </li>
        </ul>
      </div>
    </div>
  </div>
</div>
</body>

编辑1

您可以通过以下方式更改背景图片:URL.

You can change the background-image: URL by following way.

$scope.style = function(value) {
   return { 'background-image': 'url(' + value+')' };
}

这篇关于如何在AngularJS中动态更改CSS属性的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！