UIPickerView不可自定义.完全没有.

UIPickerView is not customizable. At all.

您必须根据自己的需求进行自定义.

You'll have to go custom for what you want.

最简单的方法也许就是弄乱启用了垂直分页的UIScrollView，并尝试使其表现出所需的效果.也许将UIImageView与它重叠，然后将整个内容包装在自定义视图中.

Perhaps the easiest way would be to mess with an UIScrollView with vertical pagination enabled, and try to get it to act like you want. Maybe overlap an UIImageView with it and wrap the whole thing up in a custom view.