Posted by 手机页面touch拉取页面效果
需要下载touchSwipe。
移动端触屏滑动的效果其实就是图片轮播，在PC的页面上很好实现，绑定click和mouseover等事件来完成。但是在移动设备上，要实现这种轮播的效果，就需要用到核心的touch事件。处理touch事件能跟踪到屏幕滑动的每根手指。
touch事件如下：
touchstart：手指放到屏幕上时触发
touchmove：手指在屏幕上滑动式触发
touchend：手指离开屏幕时触发
touchcancel：系统取消touch事件的时候触发
<script>
$(“body”).on(“touchstart”, function(e) {
//e.preventDefault();
startX = e.originalEvent.changedTouches[0].pageX,
startY = e.originalEvent.changedTouches[0].pageY;
startT = +new Date;
$(“body”).on(“touchmove”,function(event){
_touchmove(event);
});
});
function _touchmove(e) {
var endT = +new Date – startT;
if(Number(endT) < 100)
{
return;
}
//e.preventDefault(); //阻止页面滚动
var moveEndX = e.originalEvent.changedTouches[0].pageX,
moveEndY = e.originalEvent.changedTouches[0].pageY,
X = moveEndX – startX,
Y = moveEndY – startY;
var moveX = (Math.abs(X) > 50) ? Math.abs(X) : 0;
var moveY = (Math.abs(Y) > 50) ? Math.abs(Y) : 0;
var scroll_top = $(“body”).scrollTop();
var height = $(document).height();
var totalheight = parseFloat($(window).height()) + parseFloat($(window).scrollTop());
// 向右滑动 页面左拉
if (moveX > moveY && X > 0 ) {
console.log(“向右滑动”);
return;
}
//向左滑动 页面右拉
if (moveX > moveY && X < 0 ) {
console.log(“向左滑动”);
return;
}
// 向下滑动 页面上拉
if ( moveX < moveY && Y > 0) {
if(scroll_top == 0){
console.log(“向下滑动, 页面到顶了”);
return;
}
console.log(“向下滑动”);
return;
}
// 向上滑动 页面下拉
if ( moveX < moveY && Y < 0) {
if(height <= totalheight)
{
console.log(“向上滑动, 页面到底了”);
return;
}
console.log(“向上滑动”);
return;
}
console.log(‘just touch’);
};
</script>
这个可以有！
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