使用背景颜色在UIDatePicker上设置角半径 [英] Setting corner radius on UIDatePicker with a background color

问题描述

我的视图中有一个 UIDatePicker ，并设置了 UIDatePicker 的背景颜色：

I have a UIDatePicker in my view and have set the background color of the UIDatePicker:

self.datePicker.backgroundColor = [UIColor lightTextColor];
self.datePicker.layer.cornerRadius = 10;

这成功地将背景置于 UIDatePicker 之后（在iOS7中基本上是透明的）但是无法为我正在寻找的背景制作圆角（我为屏幕上的图像做同样的事情并且它完美地工作）。$
似乎角半径不会影响背景颜色。

有没有办法通过设置背景颜色的角半径来解决这个问题（或任何其他解决方案）。

This successfully puts a background behind the UIDatePicker (which in iOS7 is essentially transparent) but fails to make the rounded corners for the background that I am looking for (I do this same thing for an image on the screen and it works perfectly).
It seems that the corner radius doesn't affect the background color.
Is there a way to fix this problem by setting a corner radius for the background color (or any another solution).

我想这样做的原因是因为普通的 UIDatePicker 看起来很尴尬我构建的视图和背景颜色看起来好多了。

但是，视图中的所有其他项目都有圆角，我想要 UIDatePicker 匹配他们。

The reason I want to do this is because the ordinary UIDatePicker looks awkward in the view I have constructed and looks much better with a background color.
However, all the other items in the view have rounded corners and I want the UIDatePicker to match them.

谢谢。

推荐答案

你必须添加 layer.masksToBounds = YES;

试试这个，

self.datePicker.backgroundColor = [UIColor lightTextColor];
self.datePicker.layer.cornerRadius = 10;
self.datePicker.layer.masksToBounds=YES;

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