HTML5+原生javascript移动端滑动banner效果demo

xiaoxiao2021-03-25 93

<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0"> <meta name="apple-mobile-web-app-capable" content="yes"> <meta content="telephone=yes" name="format-detection" /> <meta name="apple-mobile-web-app-status-bar-style" content="white"> <meta name="x5-fullscreen" content="true"> <meta name="apple-touch-fullscreen" content="yes"> <title>Document</title> <style> *{margin:0;padding:0;} .box{ height:200px; width:100%; overflow: hidden; } .movebox{ height:200px; width:9000px; padding:0; position:relative; left:0; } .movebox li{ height:200px; float:left; list-style:none; font-size:30px; color:#fff; } </style> <script> window.onload = function(){ var moveX, //手指滑动距离 endX, //手指停止滑动时X轴坐标 cout = 0, //滑动计数器 moveDir; //滑动方向 var movebox = document.querySelector(".movebox"); //滑动对象 var Li = movebox.querySelectorAll("li"); //滑动对象item var width = parseInt(window.getComputedStyle(movebox.parentNode).width); //滑动对象item的宽度 movebox.style.width = (width*4) + "px"; //设置滑动盒子width for(var i = 0; i < Li.length; i++){ Li[i].style.width = width + "px"; //设置滑动item的width，适应屏幕宽度 } //触摸开始 function boxTouchStart(e){ var touch = e.touches[0]; //获取触摸对象 startX = touch.pageX; //获取触摸坐标 endX = parseInt(movebox.style.webkitTransform.replace("translateX(", "")); //获取每次触摸时滑动对象X轴的偏移值 } function boxTouchMove(e){ var touch = e.touches[0]; moveX = touch.pageX - startX; //手指水平方向移动的距离 if(cout == 0 && moveX > 0){ //刚开始第一次向左滑动时 return false; } if(cout == 3 && moveX < 0){ //滑动到最后继续向右滑动时 return false; } movebox.style.webkitTransform = "translateX(" + (endX + moveX) + "px)"; //手指滑动时滑动对象随之滑动 } function boxTouchEnd(e){ moveDir = moveX < 0 ? true : false; //滑动方向大于0表示向左滑动，小于0表示向右滑动 //手指向左滑动 if(moveDir){ if(cout<3){ movebox.style.webkitTransform = "translateX(" + (endX-width) + "px)"; cout++; } //手指向右滑动 }else{ //滑动到初始状态时返回false if(cout == 0){ return false; }else{ movebox.style.webkitTransform = "translateX(" + (endX+width) + "px)"; cout--; } } } //滑动对象事件绑定 movebox.addEventListener("touchstart", boxTouchStart, false); movebox.addEventListener("touchmove", boxTouchMove, false); movebox.addEventListener("touchend", boxTouchEnd, false); } </script> </head> <body style="position:absolute;width:100%;overflow:hidden;"> <div class="box"> <ul class="movebox" style="transition-duration:0.2s;transform: translateX(-0px);"> <li style="background:red;">1</li> <li style="background:yellow">2</li> <li style="background:blue">3</li> <li style="background:green">4</li> </ul> </div> </body> </html>

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