XIB 使用 runtime添加button 的cornerRadius，borderWidth，borderColor属性

#import <UIKit/UIKit.h>

IB_DESIGNABLE

@interfaceUIView (CornerRadius)

@property(nonatomic, assign)IBInspectableCGFloatcornerRadius;

@property(nonatomic, assign)IBInspectableCGFloatborderWidth;

@property(nonatomic, strong)IBInspectableUIColor*borderColor;

@end

#import "Viewall.h"

#import <objc/runtime.h>

@implementationUIView (CornerRadius)

- (CGFloat)cornerRadius

{

    return[objc_getAssociatedObject(self, @selector(cornerRadius)) floatValue];

}

- (void)setCornerRadius:(CGFloat)cornerRadius

{

    self.layer.cornerRadius= cornerRadius;

    self.layer.masksToBounds= YES;

}

- (CGFloat)borderWidth

{

    return[objc_getAssociatedObject(self, @selector(borderWidth)) floatValue];

}

- (void)setBorderWidth:(CGFloat)borderWidth

{

    self.layer.borderWidth= borderWidth;

    self.layer.masksToBounds= YES;

}

- (UIColor*)borderColor

{

    returnobjc_getAssociatedObject(self, @selector(borderColor));

}

- (void)setBorderColor:(UIColor*)borderColor

{

    self.layer.borderColor= borderColor.CGColor;

}

@end