本文实例为大家分享实现类似QQ中对联系人的操作：向左滑动，滑出删除按钮。滑动超过一半时松开则自动滑到底，不到一半时松开则返回原处。
纯js实现
使用了h5的touchmove等事件，以及用js动态改变css3的translate属性来达到动画效果：
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta content="width=device-width, initial-scale=1"> <title>html5向左滑动删除特效</title> <style> * { padding: 0; margin: 0; list-style: none; } header { background: #f7483b; border-bottom: 1px solid #ccc } header h2 { text-align: center; line-height: 54px; font-size: 16px; color: #fff } .list-ul { overflow: hidden } .list-li { line-height: 60px; border-bottom: 1px solid #fcfcfc; position: relative; padding: 0 12px; color: #666; background: #f2f2f2; -webkit-transform: translateX(0px); } .btn { position: absolute; top: 0; right: -80px; text-align: center; background: #ffcb20; color: #fff; width: 80px } </style> <script> /* * 描述：html5苹果手机向左滑动删除特效 */ window.addEventListener('load', function() { var initX; //触摸位置 var moveX; //滑动时的位置 var X = 0; //移动距离 var objX = 0; //目标对象位置 window.addEventListener('touchstart', function(event) { event.preventDefault(); var obj = event.target.parentNode; if (obj.className == "list-li") { initX = event.targetTouches[0].pageX; objX = (obj.style.WebkitTransform.replace(/translateX\(/g, "").replace(/px\)/g, "")) * 1; } if (objX == 0) { window.addEventListener('touchmove', function(event) { event.preventDefault(); var obj = event.target.parentNode; if (obj.className == "list-li") { moveX = event.targetTouches[0].pageX; X = moveX - initX; if (X >= 0) { obj.style.WebkitTransform = "translateX(" + 0 + "px)"; } else if (X < 0) { var l = Math.abs(X); obj.style.WebkitTransform = "translateX(" + -l + "px)"; if (l > 80) { l = 80; obj.style.WebkitTransform = "translateX(" + -l + "px)"; } } } }); } else if (objX < 0) { window.addEventListener('touchmove', function(event) { event.preventDefault(); var obj = event.target.parentNode; if (obj.className == "list-li") { moveX = event.targetTouches[0].pageX; X = moveX - initX; if (X >= 0) { var r = -80 + Math.abs(X); obj.style.WebkitTransform = "translateX(" + r + "px)"; if (r > 0) { r = 0; obj.style.WebkitTransform = "translateX(" + r + "px)"; } } else { //向左滑动 obj.style.WebkitTransform = "translateX(" + -80 + "px)"; } } }); } }) window.addEventListener('touchend', function(event) { event.preventDefault(); var obj = event.target.parentNode; if (obj.className == "list-li") { objX = (obj.style.WebkitTransform.replace(/translateX\(/g, "").replace(/px\)/g, "")) * 1; if (objX > -40) { obj.style.WebkitTransform = "translateX(" + 0 + "px)"; objX = 0; } else { obj.style.WebkitTransform = "translateX(" + -80 + "px)"; objX = -80; } } }) }) </script> </head> <body> <header> <h2>消息列表</h2> </header> <section> <ul> <li> <div> 你的快递到了，请到楼下签收 </div> <div>删除</div> </li> <li> <div> 哇，你在干嘛，快点来啊就等你了 </div> <div>删除</div> </li> </ul> </section> </body> </html>
做成zepto插件
实际项目中，我们可能有很多个地方会用到这个功能。现在我们将这个功能做成zepto插件，方便后面使用。
这个插件，我们仅实现这个功能，然后传入参数（删除按钮的样式名），让程序在js中计算所需要滑动的距离，方便复用。
zepto.touchWipe.js
/** * zepto插件：向左滑动删除动效 * 使用方法：$('.itemWipe').touchWipe({itemDelete: '.item-delete'}); * 参数：itemDelete 删除按钮的样式名 */ ; (function($) { $.fn.touchWipe = function(option) { var defaults = { itemDelete: '.item-delete', //删除元素 }; var opts = $.extend({}, defaults, option); //配置选项 var delWidth = $(opts.itemDelete).width(); var initX; //触摸位置 var moveX; //滑动时的位置 var X = 0; //移动距离 var objX = 0; //目标对象位置 $(this).on('touchstart', function(event) { event.preventDefault(); var obj = this; initX = event.targetTouches[0].pageX; objX = (obj.style.WebkitTransform.replace(/translateX\(/g, "").replace(/px\)/g, "")) * 1; if (objX == 0) { $(this).on('touchmove', function(event) { event.preventDefault(); var obj = this; moveX = event.targetTouches[0].pageX; X = moveX - initX; if (X >= 0) { obj.style.WebkitTransform = "translateX(" + 0 + "px)"; } else if (X < 0) { var l = Math.abs(X); obj.style.WebkitTransform = "translateX(" + -l + "px)"; if (l > delWidth) { l = delWidth; obj.style.WebkitTransform = "translateX(" + -l + "px)"; } } }); } else if (objX < 0) { $(this).on('touchmove', function(event) { event.preventDefault(); var obj = this; moveX = event.targetTouches[0].pageX; X = moveX - initX; if (X >= 0) { var r = -delWidth + Math.abs(X); obj.style.WebkitTransform = "translateX(" + r + "px)"; if (r > 0) { r = 0; obj.style.WebkitTransform = "translateX(" + r + "px)"; } } else { //向左滑动 obj.style.WebkitTransform = "translateX(" + -delWidth + "px)"; } }); } }) $(this).on('touchend', function(event) { event.preventDefault(); var obj = this; objX = (obj.style.WebkitTransform.replace(/translateX\(/g, "").replace(/px\)/g, "")) * 1; if (objX > -delWidth / 2) { obj.style.transition = "all 0.2s"; obj.style.WebkitTransform = "translateX(" + 0 + "px)"; obj.style.transition = "all 0"; objX = 0; } else { obj.style.transition = "all 0.2s"; obj.style.WebkitTransform = "translateX(" + -delWidth + "px)"; obj.style.transition = "all 0"; objX = -delWidth; } }) //链式返回 return this; }; })(Zepto);
touchWipe.html