OC: CALayer+MaxMethod

.h文件

#import 

@interface CALayer (MaxMethod)
- (void)setBorderColorFromUIColor:(UIColor *)color;
@end

.m文件

#import "CALayer+MaxMethod.h"

@implementation CALayer (MaxMethod)

- (void)setBorderColorFromUIColor:(UIColor *)color {
    self.borderColor = color.CGColor;
}

@end