js/jq移动端触屏滑动 拖拽效果

其实就是普通的事件操作

var startPosition, endPosition, deltaX ;
el.addEventListener('touchstart', function (e) {
    var touch = e.touches[0];
    startPosition = {
        x: touch.pageX,
        y: touch.pageY
    }
});

el.addEventListener('touchmove', function (e) {
    var touch = e.touches[0];
    endPosition = {
        x: touch.pageX,
        y: touch.pageY
    }

    deltaX = endPosition.x - startPosition.x;
    deltaY = endPosition.y - startPosition.y;
});