禁用ios浏览器页面上下滚动回弹效果
<!doctype html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width,initial-scale=1,user-scalable=0"><title>Demo</title&
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<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1,user-scalable=0">
<title>Demo</title>
<style>
html,body{
width: 100%; height: 100%; position: fixed;top:0;left:0;
}
.box{
height:100%;
}
.scroll{
height:100%;
overflow: auto;
-webkit-overflow-scrolling: touch;
}
</style>
</head>
<body>
<div class="box">
<div class="scroll" id="scroll">
<div id="test">测试</div>
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</div>
</div>
<script>
var ios = navigator.userAgent.indexOf('iPhone');//判断是否为ios
if(ios != -1){
//ios下运行
var scroll = document.getElementById("scroll")//你需要滑动的dom元素
touchScroll(scroll);
}
var canScroll = true;
function touchScroll(el) {
canScroll = false;
//el需要滑动的元素
el.addEventListener('touchmove',function(e){
canScroll = true;
})
document.body.addEventListener('touchmove',function(e){
// alert(canScroll);
if(!canScroll){
e.preventDefault(); //阻止默认事件(上下滑动)
}else{
//需要滑动的区域
var top = el.scrollTop; //对象最顶端和窗口最顶端之间的距离
var scrollH = el.scrollHeight; //含滚动内容的元素大小
var offsetH = el.offsetHeight; //网页可见区域高
var cScroll = top + offsetH; //当前滚动的距离
//被滑动到最上方和最下方的时候
if(top == 0){
top = 1; //0~1之间的小数会被当成0
}else if(cScroll === scrollH){
el.scrollTop = top - 0.1;
}
}
}, {passive: false}) //passive防止阻止默认事件不生效
}
</script>
</body>
</html>
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