移动端手指操控左右滑动的菜单

本文实例为大家分享了移动端手指操控左右滑动菜单的具体代码，供大家参考，具体内容如下

<!DOCTYPE html>  
<html lang="en">  
<head>  
  <meta charset="UTF-8">  
  <title>移动端手指操控左右滑动的菜单</title> 
  <style type="text/css"> 
  body {margin:0;}
  .menu-wrap {
   width: 100%;
   height: 50px;
   overflow: hidden;
  }
  .menu-wrap-layer2 {
   width: 100%;
   height: 50px;
   overflow: hidden;
  }
  .menu-list {
   display: inline-block;
   white-space: nowrap;
   transition-duration: 0ms;
   transform: translateX(0px);
  }
  .menu-list-item {
   display: inline-block;
  }
  .menu-list-item span {
   display: inline-block;
   width: 100px;
   margin: 0 3px;
   text-align: center;
  }
  </style>  
</head>  
<body> 
<div id="menu-wrap" class="menu-wrap">
 <div class="menu-list js-menu-list">
   <div class="menu-list-item">
     <span data-index="0">全站</span>    
   </div>
  <div class="menu-list-item">
     <span data-index="1">动画</span>
   </div>
   <div class="menu-list-item">
     <span data-index="2">番剧</span>
   </div>
  <div class="menu-list-item">
     <span data-index="3">国创</span>
   </div>
   <div class="menu-list-item">
     <span data-index="4">音乐</span>
   </div>
  <div class="menu-list-item">
     <span>舞蹈</span>
   </div>
   <div class="menu-list-item">
     <span>科技</span>
   </div>
  <div class="menu-list-item">
     <span>游戏</span>
   </div>
   <div class="menu-list-item">
     <span>娱乐</span>
   </div>
  <div class="menu-list-item">
     <span>电影</span>
   </div>
   <div class="menu-list-item">
     <span>电视剧</span>
   </div>
  <div class="menu-list-item">
     <span>纪录片</span>
   </div>   
 </div> 
</div>
<div>
<div class="menu-wrap-layer2 js-menu-wrap-layer2 js-menu-wrap0" style="display: block;">
 <div class="menu-list js-menu-list">
   <div class="menu-list-item">
     <span>二级菜单1</span>
   </div>
  <div class="menu-list-item">
     <span>二级菜单2</span>
   </div>
   <div class="menu-list-item">
     <span>二级菜单3</span>
   </div>
  <div class="menu-list-item">
     <span>二级菜单4</span>
   </div>
   <div class="menu-list-item">
     <span>二级菜单5</span>
   </div>
  <div class="menu-list-item">
     <span>二级菜单6</span>
   </div>
   <div class="menu-list-item">
     <span>二级菜单7</span>
   </div>
  <div class="menu-list-item">
     <span>二级菜单8</span>
   </div>
   <div class="menu-list-item">
     <span>二级菜单9</span>
   </div>
  <div class="menu-list-item">
     <span>二级菜单10</span>
   </div>
   <div class="menu-list-item">
     <span>二级菜单11</span>
   </div>
  <div class="menu-list-item">
     <span>二级菜单12</span>
   </div>   
 </div> 
</div> 
 
<div class="menu-wrap-layer2 js-menu-wrap-layer2 js-menu-wrap1" style="display: none;">
 <div class="menu-list js-menu-list">
   <div class="menu-list-item">
     <span>二级菜单s1</span>
   </div>
  <div class="menu-list-item">
     <span>二级菜单s2</span>
   </div>   
 </div> 
</div>
</div>
 
 
<script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.js"></script>
<script type="text/javascript">
 
 
$(function() {
 var menu = function(wrap, menuList, menuItems) {
 var deviceWidth = $(window).width();
 var positionX = 0;
 var menuListPositionX1 = wrap.offset().left; 
 var menuListPositionX2 = menuListPositionX1 + wrap.width();   
 
 $(menuList).attr("style","transition-duration: 0ms;transform: translateX(0px);");
 
 menuList.addEventListener('touchstart',function(event){
  if(event.targetTouches.length == 1){
     var touch = event.targetTouches[0];
     positionX = touch.pageX;
     //确定本次拖动transform的初始值
     var transformStr = menuList.style.transform;
     transformStr = transformStr.substring(11);
     var index = transformStr.lastIndexOf("p");
     transformStr = transformStr.substring(0, index);
     transformX = parseInt(transformStr);
     //确定本次拖动的div宽度值
     var widthStr = menuList.style.width;
     thisWidth = parseInt(widthStr.substring(0,widthStr.lastIndexOf("p")));
   }
 }, false);
 menuList.addEventListener('touchmove', function(event) {
   //阻止其他事件
   event.preventDefault();
   //获取当前坐标
   if(event.targetTouches.length == 1){
     var touch = event.targetTouches[0];
     menuList.style.transform = 'translateX('+(transformX+touch.pageX-positionX)+'px)';
     $(menuList).css("width",thisWidth+positionX-touch.pageX);
   }
 }, false);
 menuList.addEventListener('touchend', function(event) {
   var menuItem1 = menuItems[0];
   var menuItem1Left = $(menuItem1).offset().left;
   var menuItem2 = menuItems[menuItems.length-1];
   var menuItemPositionX = $(menuItem2).offset().left+$(menuItem2).width();
   var firstToLast = menuItemPositionX - menuItem1Left;
   if (menuItem1Left > menuListPositionX1 || firstToLast < deviceWidth) {
     menuList.style.transform = 'translateX('+(menuListPositionX1)+'px)';
   }
   if(menuItemPositionX < menuListPositionX2 && menuItem1Left < 0 && firstToLast > deviceWidth) {
    var myWidth = $(menuList).width() - deviceWidth;
     menuList.style.transform = 'translateX('+(0-myWidth)+'px)';
   }
 }, false);
 }
 
 var event = function() {
 $('#menu-wrap .js-menu-list span').click(function () {
  console.log($(this).attr('data-index'));
  var activeMenu = $('.js-menu-wrap' + $(this).attr('data-index'));
  activeMenu.siblings().hide();
  activeMenu.show();
 });
 }
 var init = function() {
 var menuWrap = $('#menu-wrap');
 var menuList = $("#menu-wrap .js-menu-list")[0];
 var menuListItems = $("#menu-wrap .menu-list-item");
 menu(menuWrap, menuList, menuListItems);
 
 var menuWrapLayer2 = $('.js-menu-wrap-layer2');
 var helper = function (tempWrap, tempMenuList, tempMenuListItems) { 
  var tempFun = function() {
  menu(tempWrap, tempMenuList, tempMenuListItems);
  }();
 } 
 for (var i = 0; i < menuWrapLayer2.length; i++) {
  var tempWrap = $(menuWrapLayer2[i]);
  var tempMenuList = $(menuWrapLayer2[i]).find('.js-menu-list')[0];
  var tempMenuListItems = $(menuWrapLayer2[i]).find('.menu-list-item');
  helper(tempWrap, tempMenuList, tempMenuListItems);
 }
 event();
 }();
});
</script>
</body>  
</html>

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持呐喊教程。

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