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css变形 transform

2018-06-24 00:39:37来源：未知阅读 ()

transition：过度属性

transition-property 规定设置过度效果的css属性的名称，默认可以写all
transition-duration 规定完成过度效果需要多少秒或毫秒
transition-timing-function: 默认easetransition-delay：延时时间
- ease:逐渐变慢
- linear:匀速
- ease-in:加速
- ease-out:减速
- ease-in-out:先加速在减速
- cubic-bezier：贝塞尔曲线

transitionend：过度完成事件

1 function addEnd(obj,fn){
2     obj.addEventListener('WebkitTransitionEnd',fn,false);
3     obj.addEventListener('transitionend',fn,false);
4 }
5 function removeEnd(obj,fn){
6     obj.removeEventListener('WebkitTransitionEnd',fn,false);
7     obj.removeEventListener('transitionend',fn,false);
8 }

注：1在transition里，如果写了多个，那没改变一次样式，就会触发一次事件
　　2注意重复触发transitionend事件。比如下面重复改变div的y轴位置

 1 <!DOCTYPE html>
 2 <html lang="en">
 3 <head>
 4     <meta charset="UTF-8">
 5     <title>Title</title>
 6     <style>
 7         #nav{position: absolute;left:0;top:0;width: 100px;height: 100px;background: gray;transition: 1s all;}
 8     </style>
 9 </head>
10 <body>
11 <div id="nav"></div>
12 <script>
13     var oHome=document.getElementById("nav");
14     var count = 10;
15     oHome.onclick = function(){
16         count += 20;
17         oHome.style.transform = 'translate(0,'+ count +'px)'
18         addEnd(this,function(){
19             count += 20;
20             oHome.style.transform = 'translate(0,'+ count +'px)'
21         })
22     }
23     function addEnd(obj,fn) {
24         obj.addEventListener('WebkitTransitionEnd',fn,false);
25         obj.addEventListener('transitionend',fn,false);
26     }
27 </script>
28 </body>
29 </html>