如何重置界面生成器中提到的UIButton背景图像？
[英]how to reset UIButton background image mentioned in interface builder?
问题描述
I creating an iPhone application, set background image for UIButton using interface builder, then i changed the background image for that UIButton programmatically. 
我创建了一个iPhone应用程序，使用界面生成器为UIButton设置了背景图片，然后以编程方式更改了该UIButton的背景图片。 Now i need to restore the background programmatically which i have used already(used in interface builder). 现在，我需要以编程方式恢复我已经使用过的背景（在界面生成器中使用）。
1 个解决方案
解决方案1
1 2011-08-18 17:39:05
After you change the background image programmatically, you either need to call -viewDidLoad (probably after calling -viewDidUnload ) to reset the background, or change it again progammatically. 以编程方式更改背景图像后，您需要调用-viewDidLoad （可能在调用-viewDidUnload ）以重置背景，或者以编程方式再次更改背景。 The UIImage doesn't remember it's previous background, so there is no easier way to "restore" the setting. UIImage不会记住它的先前背景，因此没有更简单的方法来“恢复”设置。
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