我在 CSS 中有一个动画，可以围绕其中心旋转图像。我希望能够在 JavaScript 中以编程方式更改 animation-timing-function 和 -webkit-animation-timing-function 等。这是代码和我尝试过的内容:
<div id="content"> <div id="container">
<div id="outerQ"></div> <div id="innerQ">
</div>
</div>
<div id="logo"></div>
<span id="sp"></span>
<input type="button" id="linear" value="Linear"/>
<input type="button" id="ease" value="Ease in and out"/>
</div>
脚本:
<head>
<script src="http://code.jquery.com/jquery-2.0.1.min.js"></script>
<script>
$(document).ready(function ()
{
$("#linear").click(function ()
{
$("#innerQ").css("-webkit-animation-timing-function", "linear");
});
$("#ease").click(function ()
{
$("#innerQ").css("-webkit-animation-timing-function", "ease-in-out");
});
});
</script>
CSS:
<style>
body
{
background: #018a9a;
margin: 20px;
}
#content
{
width: 566px;
height: 120px;
position: fixed;
top: 50%;
left: 50%;
margin-top: -80px;
margin-left: -278px;
}
#outerQ
{
width: 96px;
height: 120px;
background-image: url('outerQ.png');
}
#innerQ
{
width: 96px;
height: 120px;
background-image: url('innerQ.png');
position: absolute;
left: 0;
top: 0;
}
#container
{
width: 96px;
height: 120px;
float: left;
}
#logo
{
width: 470px;
height: 120px;
background-image: url('LogoLarge.png');
float: left;
}
#sp
{
clear: both;
}
@keyframes spin
{
from {
transform: rotate(0deg);
}
to {
transform: rotate(360deg);
}
}
@-webkit-keyframes spin
{
from {
-webkit-transform: rotate(0deg);
}
to {
-webkit-transform: rotate(360deg);
}
}
@-moz-keyframes spin
{
from {
-moz-transform: rotate(0deg);
}
to {
-moz-transform: rotate(360deg);
}
}
#innerQ
{
/*IE 10*/
animation-name: spin;
animation-iteration-count: infinite;
animation-timing-function: linear;
animation-duration: 1.3s;
animation-play-state: running;
transform-origin: 48px 50.5px;
/*Chrome*/
-webkit-animation-name: spin;
-webkit-animation-iteration-count: 1;
-webkit-animation-timing-function: linear;
-webkit-animation-duration: 1.3s;
-webkit-animation-play-state: running;
-webkit-transform-origin: 48px 50px;
/*Firefox*/
-moz-animation-name: spin;
-moz-animation-iteration-count: infinite;
-moz-animation-timing-function: linear;
-moz-animation-duration: 1.3s;
-moz-animation-play-state: running;
-moz-transform-origin: 48px 50px;
}
</style>
</head>
<body>
HTML:
<input type="button" id="linear" value="Linear"/>
<input type="button" id="ease" value="Ease in and out"/>
</div>
</body>
我在这里使用 webkit，因为我使用 Chrome，点击按钮什么也不做。我还想更改“animation-iteration-count”和“animation-duration”，但它们不起作用。唯一有效的是“-webkit-animation-play-state”。我也试过:
$("#innerQ").style.WebkitAnimationTimingFunction = "ease-in-out";
那也不行。有没有办法在页面加载后更改这些属性？谢谢
最佳答案
function function_name() {
document.getElementById('innerQ"').className = "innerQ";
}
CSS
.innerQ
{
//you css code(put all timing stuff here!!!)
}
//Step 1--->Put you desired css animation in a css class
//Step 2--->add that css class with javascript(className)
//Step 3---->Call function animation on click of the button
关于javascript - 如何更改 JavaScript 中的动画计时功能？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/17296583/