js移动端滑动事件

 <script type="text/javascript">

            var windowHeight = $(window).height(),

                $body = $("body");

            $body.css("height", windowHeight);

            var startX, startY, moveEndX, moveEndY, X, Y;

 

$("body").on("touchstart", function(e) {

    e.preventDefault();

    startX = e.originalEvent.changedTouches[0].pageX,

    startY = e.originalEvent.changedTouches[0].pageY;

});

$("body").on("touchmove", function(e) {

    e.preventDefault();

    moveEndX = e.originalEvent.changedTouches[0].pageX,

    moveEndY = e.originalEvent.changedTouches[0].pageY,

    X = moveEndX - startX,

    Y = moveEndY - startY;

     

    if ( Math.abs(X) > Math.abs(Y) && X > 0 ) {

        alert("像右滑动");

    }

    else if ( Math.abs(X) > Math.abs(Y) && X < 0 ) {

        alert("像左滑动");

    }

    else if ( Math.abs(Y) > Math.abs(X) && Y > 0) {

        alert("下滑动");

    }

    else if ( Math.abs(Y) > Math.abs(X) && Y < 0 ) {

        alert("上滑动");

    }

    else{

        alert("触摸");

    }

});

        

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