用jquery模仿头条导航的滚动效果
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no">
<title></title>
<script src="jquery.js"></script>
<style>
.scroll{
2000px;
height:100px;
display: flex;
flex-direction: row;
border:1px solid gray;
position: fixed;
top: 0;
left:0;
}
.flex-item{
flex: 14;
border-right: 1px solid gray;
line-height: 100px;
text-align: center;
}
</style>
</head>
<body>
<div class="scroll">
<div class="flex-item">推荐</div>
<div class="flex-item">热点</div>
<div class="flex-item">视频</div>
<div class="flex-item">济南</div>
<div class="flex-item">社会</div>
<div class="flex-item">头条</div>
<div class="flex-item">问答</div>
<div class="flex-item">图片</div>
<div class="flex-item">娱乐</div>
<div class="flex-item">科技</div>
<div class="flex-item">汽车</div>
<div class="flex-item">体育</div>
<div class="flex-item">财经</div>
<div class="flex-item">军事</div>
</div>
<script>
var startX=0;
var startY=0;
var enX=0;
var screenWidth=$(window).width();
var elementWidth=$(".scroll").width();
var lei=0;
var flag=false;
var flag1=false;
var leijia=0;
$('body').bind('touchstart',function(e){
startX = e.originalEvent.changedTouches[0].pageX,
startY = e.originalEvent.changedTouches[0].pageY;
});
$('body').bind('touchend',function(e){
enX = e.originalEvent.changedTouches[0].pageX
console.log("离开屏幕*********"+enX)
lei=enX-startX;
leijia=leijia+lei;
});
$('body').bind('touchmove',function(e){
//获取滑动屏幕时的X,Y
endX = e.originalEvent.changedTouches[0].pageX,
endY = e.originalEvent.changedTouches[0].pageY;
//获取滑动距离
distanceX = endX-startX;
distanceY = endY-startY;
//判断滑动方向
if(Math.abs(distanceX)>Math.abs(distanceY) && distanceX>0){
console.log('往右滑动');
if(flag){
leijia=-(elementWidth-screenWidth);
flag=false;
}
var offsetop=$(".scroll").offset().left;
if(offsetop<0){
$(".scroll").css({'left':leijia+distanceX});
}else{
$(".scroll").css({'left':0});
leijia=0;
flag1=true;
}
}else if(Math.abs(distanceX)>Math.abs(distanceY) && distanceX<0){
console.log('往左滑动'+"*********"+leijia);
if(flag1){
leijia=0;
flag1=false;
}
var offsetop=$(".scroll").offset().left;
if(offsetop>-(elementWidth-screenWidth)){
$(".scroll").css({'left':leijia+distanceX});
}else{
$(".scroll").css({'left':-(elementWidth-screenWidth)});
leijia=-(elementWidth-screenWidth);
flag=true;
}
console.log("offsetTop********************"+$(".scroll").offset().left)
}else if(Math.abs(distanceX)<Math.abs(distanceY) && distanceY<0){
console.log('往上滑动');
}else if(Math.abs(distanceX)<Math.abs(distanceY) && distanceY>0){
console.log('往下滑动');
}else{
console.log('点击未滑动');
}
});
</script>
</body>
</html>