js webapp 滑动事件

var startX, startY, endX, endY;

$(".detailImg").on("touchstart", touchStart);
$(".detailImg").on("touchmove", touchMove);
$(".detailImg").on("touchend", touchEnd); function touchStart(event) {
var touch = event.originalEvent.targetTouches[0];
startX = touch.pageX;
event.preventDefault();//在andorid下不触发touchend解决方案
};
function touchMove(event) {
var touch = event.originalEvent.targetTouches[0];
endX = (startX - touch.pageX);
};
function touchEnd(event) {
if (endX > 10)
nextImgCallBack();
else if (endX < -10)
proImgCallBack(); endX = 0; startX = 0;
};