手机侧滑事件

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" id="viewport" content="width=device-width, initial-scale=1">
    <title> 手机侧滑事件</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>
       
        window.addEventListener('load',function(){
            var initX;
            var moveX;
            var X = 0;
            var objX = 0;
            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)";
                    }else{
                        obj.style.WebkitTransform = "translateX(" + -80 + "px)";
                    }
                }
             })

        })

    </script>

</head>
<body>
<header>
    <h2>消息列表</h2>
</header>
<section class="list">
    <ul class="list-ul">
        <li id="li" class="list-li">
            <div class="con">
                你的快递到了，请到楼下签收
            </div>
            <div class="btn">删除</div>
        </li>
        <li class="list-li">
            <div class="con">
                哇，你在干嘛，快点来啊就等你了
            </div>
            <div class="btn">删除</div>
        </li>
    </ul>
</section>
</body>
</html>