touch下拉刷新

<!DOCTYPE html>

<html lang="en">

<head>

    <meta charset="UTF-8">

    <title>Title</title>

    <meta name="viewport" content="initial-scale=1, user-scalable=0, minimal-ui" charset="UTF-8">

    <style type="text/css">

        *{margin: 0;padding:0}

        #slideDown{margin-top: 0;width: 100%;}

        #slideDown1,#slideDown2{width: 100%;height: 70px;;background: #e9f4f7;display: none;}

        #slideDown1{height: 20px;}

        #slideDown1>p,#slideDown2>p{margin: 20px auto;text-align:center;font-size: 14px;color: #37bbf5;}

    </style>

</head>

<body>

<div id="content">

    <div id="slideDown">

        <div id="slideDown1">

            <p>松开刷新</p>

        </div>

        <div id="slideDown2">

            <p>正在刷新 ...</p>

        </div>

    </div>

    <div class="myContent">

        <ul>

            <li>item1 -- item1 -- item1</li>

            <li>item2 -- item2 -- item2</li>

            <li>item3 -- item3 -- item3</li>

            <li>item4 -- item4 -- item4</li>

            <li>item5 -- item5 -- item5</li>

            <li>item6 -- item6 -- item6</li>

            <li>item7 -- item7 -- item7</li>

        </ul>

    </div>

</div>

<script>

    //第一步：下拉过程

    function slideDownStep1(dist){  // dist 下滑的距离，用以拉长背景模拟拉伸效果

        var slideDown1 = document.getElementById("slideDown1"),

                slideDown2 = document.getElementById("slideDown2");

        slideDown2.style.display = "none";

        slideDown1.style.display = "block";

        slideDown1.style.height = (parseInt("20px") - dist) + "px";

    }

    //第二步：下拉，然后松开，

    function slideDownStep2(){

        var slideDown1 = document.getElementById("slideDown1"),

                slideDown2 = document.getElementById("slideDown2");

        slideDown1.style.display = "none";

        slideDown1.style.height = "20px";

        slideDown2.style.display = "block";

        //刷新数据

        //location.reload();

    }

    //第三步：刷新完成，回归之前状态

    function slideDownStep3(){

        var slideDown1 = document.getElementById("slideDown1"),

                slideDown2 = document.getElementById("slideDown2");

        slideDown1.style.display = "none";

        slideDown2.style.display = "none";

    }

    //下滑刷新调用

    k_touch("content","y");

    //contentId表示对其进行事件绑定，way==>x表示水平方向的操作，y表示竖直方向的操作

    function k_touch(contentId,way){

        var _start = 0,

                _end = 0,

                _content = document.getElementById(contentId);

        _content.addEventListener("touchstart",touchStart,false);

        _content.addEventListener("touchmove",touchMove,false);

        _content.addEventListener("touchend",touchEnd,false);

        function touchStart(event){

            //var touch = event.touches[0]; //这种获取也可以，但已不推荐使用

            var touch = event.targetTouches[0];

            if(way == "x"){

                _start = touch.pageX;

            }else{

                _start = touch.pageY;

            }

        }

        function touchMove(event){

            var touch = event.targetTouches[0];

            if(way == "x"){

                _end = (_start - touch.pageX);

            }else{

                _end = (_start - touch.pageY);

                //下滑才执行操作

                if(_end < 0){

                    slideDownStep1(_end);

                }

            }

        }

        function touchEnd(event){

            if(_end >0){

                console.log("左滑或上滑  "+_end);

            }else{

                console.log("右滑或下滑"+_end);

                slideDownStep2();

                //刷新成功则

                //模拟刷新成功进入第三步

                setTimeout(function(){

                    slideDownStep3();

                },2500);

            }

        }

    }

</script>

</body>

</html>
巴特西

touch下拉刷新

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