Leveraging ng-class with an Angular $scope attribute

My HTML structure includes:

<div class="myDiv">
   <div style="width:200px; height:200px;background-image:url('img/200x200/{{largeImg}}.png');"
      ng-class="{'magictime foolishIn': 1}">
        <span>
            {{largeImg}}
        </span>
   </div>
</div>

I am trying to use the ng-class directive to apply a CSS class to the current element that will trigger a specific animation, similar to the ones shown here.

Although the CSS class is correctly applied when inspected with Firebug, the animation does not play. However, if I replace the dynamic values with hard-coded ones, everything works fine:

<div style="width:200px; height:200px;background-image:url('img/200x200/1.png');"
          ng-class="{'magictime foolishIn': 1}">
            <span>1</span>
       </div>

In AngularJS, I am using $scope.largeImg as the binding property for this view.

javascriptjquerycssangularjs

Answer №1

.customInnerDiv {
   width: 200px;
   height: 200px;
   background-image: url('img/200x200/{{largeImg % 8}}.png');
}

Your content can be styled using a CSS class like the example above. If you want to trigger animations by adding a CSS class, simply include it in the 'class' property as shown below.

<div class="myDiv">
<div class="customInnerDiv magictime foolishIn">
    <span>
        {{largeImg}}
    </span>

If you need to dynamically add styles based on user interactions, such as clicking a button, consider using the 'ng-class' directive. Take a look at this JsFiddle for an example.

Update: Following OP's feedback, the answer has been revised in the JSFiddle provided.

To achieve your desired functionality, pay attention to changes in your target value. It may be beneficial to create a custom directive for this task, as directives are designed to manipulate the UI.

Answer №2

Perhaps consider utilizing the ng-style directive for this scenario.

<div style="width:200px; height:200px;" 
     ng-style="{'background-image': 'url(img/200x200/{{ largeImg }}.png)'}"
     ng-class="{'magictime foolishIn': 1}">

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