Ng-class - remove a class after it is added to the DOM
I am using animate.css to make animation on the same element. I am having a problem in removing the class after adding it.
HTML
<form ng-submit="animate()" ng-controller="AnimateCtrl">
<input type='text' ng-model="some">
</form>
<div ng-class="{shake:animation.shake}" class="animated">
Angular
myapp.controller(function($scope){
var animation = $scope.animation = {
shake:false
};
$scope.animate=function(){
//remove the class first and add it back again
animation.shake = false
animation.shake = true
};
})
How can I remove the class after animation?
Answer
Changing the value of animation.shake to false removes the class. Changing it to true adds the class. That is the foundation of how ng-class works. If you are wanting your animation to run for some interval you need to toggle using $timeout. Difficult to tell by your code. The following example removes the class using a $timeout which executes after 2000 milliseconds.
For example http://plnkr.co/edit/Wtxkrv2nIqSLNfEsvCyI?p=preview
CSS .red{ color:red; }
HTML And Code
<!DOCTYPE html>
<html>
<head>
<script data-require="angular.js@*" data-semver="1.2.16" src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.16/angular.min.js"></script>
<link rel="stylesheet" href="style.css" />
<script src="script.js"></script>
</head>
<body ng-controller="test">
<h1>Hello Plunker!</h1>
<span ng-class="{'red':animation.shake}">Hello World</span>
<button ng-click="shake()">red</button>
<script>
var app=angular.module("app",[]);
app.controller("test",function($scope,$timeout){
$scope.animation={shake:false};
$scope.shake=function(){
$scope.animation.shake=true;
$timeout(function(){
$scope.animation.shake=false;
},2000,true);
}
});
angular.bootstrap(document,["app"]);
</script>