有一个bug,，默认的cube类型时，从右往左主动切片时会出现多余的图片旋转 #3
Description
原因是position这个变量的值引起的，修正也很简单：
if(position<=1&&position>=0){
ViewHelper.setPivotX(view, 0);
ViewHelper.setPivotY(view, view.getMeasuredHeight() * 0.5f);
ViewHelper.setRotationY(view, 90f * position);
}else if(position<0&&position>=-1){
ViewHelper.setPivotX(view, view.getMeasuredWidth());
ViewHelper.setPivotY(view, view.getMeasuredHeight() * 0.5f);
//只在Y轴做旋转操作
ViewHelper.setRotationY(view, 90f * position);
}