子类UIButtons

Question

I have four different UIViews with custom UIbuttons(10) in each view.But I want to apply two different backgroundcolors to 5 of them in each view ie I need to apply each view 5 buttons -> redColor each view remaining 5 buttons->blue Color.

So is there any thing like CSS in which I can define two different global classes in which each class will have all the properties necessary to be applied to button , and declaring that class name while creating button so that the button will inherit all the properties of that class? I have gone through Google but didnot find any ...

Any idea /help would be appreciated..

Answer 1

在Objective-C中没有CSS方法来定义按钮的属性，但是您可以创建UIButton的子类并创建2个主按钮，一个具有红色背景，另一个具有蓝色背景。

Answer 2

UIAppearance API是Cocoa Touch中唯一的CSS，所以如果你不想使用自定义子类，你可以使用它：

[[UIButton appearanceWhenContainedIn:[ViewController class], nil] setBackgroundColor:[UIColor blueColor];