IB_DESIGNABLE和IBInspectable应用

#import <UIKit/UIKit.h>

IB_DESIGNABLE
@interface UIView (HKPIBInspectable)
@property(nonatomic,assign) IBInspectable CGFloat cornerRadius;
@property(nonatomic,assign) IBInspectable CGFloat borderWidth;
@property(nonatomic,assign) IBInspectable UIColor *borderColor;
@property(nonatomic,assign) IBInspectable CGFloat defineValue;
@end

#import "UIView+HKPIBInspectable.h"
#import <objc/runtime.h>

@implementation UIView (HKPIBInspectable)

-(void)setCornerRadius:(CGFloat)cornerRadius{
    self.layer.masksToBounds = YES;
    self.layer.cornerRadius = cornerRadius;
}

-(void)setBorderColor:(UIColor *)borderColor{
    self.layer.borderColor = borderColor.CGColor;
}

-(void)setBorderWidth:(CGFloat)borderWidth{
    self.layer.borderWidth = borderWidth;
}

-(void)setDefineValue:(CGFloat)defineValue{
    objc_setAssociatedObject(self, @selector(defineValue), @(defineValue),OBJC_ASSOCIATION_ASSIGN);
}

-(CGFloat)cornerRadius{
    return self.layer.cornerRadius;
}

-(CGFloat)borderWidth{
    return self.layer.borderWidth;
}

-(UIColor *)borderColor{
    return [UIColor colorWithCGColor:self.layer.borderColor];
}

-(CGFloat)defineValue{
    return [objc_getAssociatedObject(self, @selector(defineValue)) floatValue];
}
@end

无效图如下:(备注:虽然已经新建UIView的分类,可是没有效果出来.)

有效图如下:(备注:新建了customView继承于UIView,效果出来了)