将自定义动画类添加到 jQuery

Question

我在CSS中创建了一个自定义动画类，我正在使用jQuery将其动态添加到元素中。一旦动画.css动画完成，我的自定义动画类就开始了。

我遇到的问题是我的自定义动画无法播放，而且对于我的一生，我无法弄清楚我做错了什么。我可以在开发工具中看到该类正在添加到我的元素中，但动画没有发生。

自定义淡入淡出 CSS：

.custom-fade{
-webkit-animation: 3s ease 0s normal forwards 1 custom;
animation: 3s ease 0s normal forwards 1 custom;
}
@keyframes custom{
0% { opacity:.5; }
66% { opacity:.2; }
100% { opacity:0; }
}
@-webkit-keyframes custom{
0% { opacity: .5; }
66% { opacity: .2; }
100% { opacity: 0; }
}
@-moz-keyframes custom{
0% { opacity: .5; }
66% { opacity: .2; }
100% { opacity: 0; }
}

j查询：

var animationEnd = 'webkitAnimationEnd mozAnimationEnd MSAnimationEnd oanimationend animationend';
var fadeInUp = 'animated fadeIn fadeInUp';
var fadeOut = 'animated fadeOut';
var customFade = '.custom-fade';
$('.bg-img').addClass(fadeInUp);
$('.bg-img').one( animationEnd, function(){
$(this).removeClass(fadeInUp).addClass('.custom-fade');
});

Answer 1

问题在于添加类。你应该给'custom-fade'而不是'.custom-fade'addClass().

示例代码：

jQuery:
var animationEnd = 'webkitAnimationEnd mozAnimationEnd MSAnimationEnd oanimationend animationend';
var fadeInUp = 'animated fadeIn fadeInUp';
var fadeOut = 'animated fadeOut';
var customFade = '.custom-fade';
$('.bg-img').addClass(fadeInUp);
$('.bg-img').on( animationEnd, function(){
$(this).removeClass(fadeInUp).addClass('custom-fade');
});

.custom-fade{
-webkit-animation: 3s ease 0s normal forwards 1 custom;
animation: 3s ease 0s normal forwards 1 custom;
}
@keyframes custom{
0% { opacity:.5; }
66% { opacity:.2; }
100% { opacity:0; }
}
@-webkit-keyframes custom{
0% { opacity: .5; }
66% { opacity: .2; }
100% { opacity: 0; }
}
@-moz-keyframes custom{
0% { opacity: .5; }
66% { opacity: .2; }
100% { opacity: 0; }
}
.bg-img{
width:200px;
height:500px;
background:red;
}

<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/animate.css/3.5.2/animate.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="bg-img"></div>