Interface Builder（iPhone dev）自定义按钮背景图像不尊重拉伸设置 [英] Interface Builder (iPhone dev) custom button background Image does not respect Stretching settings

问题描述

我正在尝试使用Interface Builder中的背景图像创建自定义按钮。图像具有可伸缩和不可伸缩的部分，因此可以调整大小。

I'm attempting to create a custom button using a background image in Interface Builder. The image has stretchable and non-stretchable parts so that it can be resized.

IB公开拉伸属性以允许这样做，但是我放入的值没有影响如何按钮出现。它总是被完全拉伸以填充框架的大小。

IB exposes the Stretching properties to allow for this, yet no values I put in affect how the button appears. It is always fully stretched to fill the size of the frame.

这可能是IB或UIButton中不支持的功能吗？

Is this this a unsupported feature in IB or in UIButton perhaps?

http://img.skitch.com/20100103-rjabkq2c2jkqynw47crxepdtwb.jpg

（注意：上面的拉伸值不适用于图像，但只是我在屏幕截图时弄乱的值）

(Note: The above stretch values are not the ones that will work with the image properly, but just the values I was messing with at the time of the screenshot)

推荐答案

在开始iPhone 3开发的示例中，只有 UIImage leftCapWidth 和 topCapHeight ，并以编程方式创建/设置图像，因此如果contentStretch不起作用，这是另一种方法。

In the example in Beginning iPhone 3 Development only the UIImage leftCapWidth and topCapHeight are used, and the image is created/set programmatically, so that's an alternate method if contentStretch isn't working.

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