移动端手指操控左右滑动的菜单

2019-11-19 10:51:16

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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>