<!DOCTYPE html> <html lang="en"> <head> <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0"> <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>
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