jQuery基于iscroll.js手机移动端触屏滑动下拉刷新上拉加载代码

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js代码

<script src="js/jquery.min.js"></script>
    <script src="js/common.js"></script>
    <script src="js/iscroll-probe.js"></script>
    <script>
        var wd = document.documentElement.clientWidth*window.devicePixelRatio/10;
        document.getElementsByTagName("html")[0].style.fontSize = wd + "px";
        var scale = 1/window.devicePixelRatio;
        var mstr = 'initial-scale='+ scale +', maximum-scale='+ scale +', minimum-scale='+ scale +', user-scalable=no';
        document.getElementById("vp").content = mstr;
    </script>
    <script>
        var myScroll;
        myScroll = new IScroll('#wrapper', {
            probeType: 2,
            fadeScrollbars: false
        });

        var pullDown = 1;     // 下拉刷新避免多次执行
        var pullUp = 1;       // 上拉加载避免多次执行
        var downHeight = $(".pullDown").height();
        var upHeight = $(".pullUp").height();

        myScroll.on('scroll', function(){
            var y = myScroll.y;
            
            // 下拉加载
            if(y >= downHeight && pullDown){
                $(".pullDown").addClass("refresh").html("松开刷新...");
                myScroll.minScrollY = downHeight;
                pullDown = 0;
            }    
            if(y <= downHeight && y >= 0 && !pullDown){
                $(".pullDown").removeClass("refresh").html("下拉刷新...");
                pullDown = 1;
                myScroll.minScrollY = 0;
            }

            // 上拉刷新
            var maxHeight = myScroll.maxScrollY;
            if(y < (maxHeight - upHeight) && pullUp){
                $(".pullUp").addClass("loading").html("松开加载...");
                myScroll.maxScrollY = maxHeight - upHeight;
                pullUp = 0;
            }
            if(y > maxHeight && y < (maxHeight + upHeight) && !pullUp){
                $(".pullUp").removeClass("loading").html("上拉加载...");
                myScroll.maxScrollY = maxHeight + upHeight;
                pullUp = 1;
            }
        });

        myScroll.on('scrollEnd', function(){
            if($(".pullDown").hasClass("refresh")){
                $(".pullDown").text("正在刷新...");
                common.loadingShow();
                setTimeout(function(){
                    location.reload();
                }, 2000);
            }

            if($(".pullUp").hasClass("loading")){
                $(".pullUp").text("正在加载...");
                setTimeout(function(){
                    add();
                    myScroll.refresh();
                }, 1000);
            }
        });

        myScroll.on('refresh', function(){
            $(".pullUp").removeClass("loading").html("上拉加载...");
            pullUp = 1;
        });


        // 向列表添加数据
        function add(){
            common.loadingShow();
            var arr = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
            var html = $.map(arr, function(item, index){
                return "<li>我是加载的第"+(index+1)+"条数据</li>"
            }).join("");
            $(".dataLine").append(html);
            common.loadingHide();
        }

    </script>