我想子类UIButton添加一些我需要的属性(不是方法...只有属性).
这是我的子类的代码:
//.h-----------------------
@interface MyButton : UIButton{
MyPropertyType *property;
}
@property (nonatomic,retain) MyPropertyType *property;
@end
//.m--------------------------
@implementation MyButton
@synthesize property;
@end
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在这里我如何使用该类:
MyButton *btn = ((MytButton *)[MyButton buttonWithType:UIButtonTypeRoundedRect]);
btn.property = SomeDataForTheProperty;
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从哪里获得此错误:
-[UIRoundedRectButton setProperty:]: unrecognized selector sent to instance 0x593e920
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因此,从ButtonWithType我获得一个UIRoundedRectButton,(Mybutton *)不能施展它...我需要做什么来获得一个MyButton对象?是-init唯一的解决方案?
谢谢!