iOS为类簇动态绑定属性

Posted 2022-12-11 JackLee18

为类簇绑定属性没有太多的技术含量，这边记录下，方便后续用到直接复制粘贴。
具体代码如下：

#import "JKThemeColor.h"
#import <objc/runtime.h>
static const void *vv_CGColorKey = "jk_CGColorKey";
@interface  JKThemeColor:UIColor

@end

@implementation JKThemeColor

+ (void)configColor:(UIColor *)color jk_CGColor:(CGColorRef)jk_CGColor

    objc_setAssociatedObject(color, jk_CGColorKey, (__bridge id _Nullable)(vv_CGColor), OBJC_ASSOCIATION_RETAIN_NONATOMIC);

#pragma mark - - getter - -
+ (CGColorRef)vv_CGColorOfColor:(UIColor *)color

    return (__bridge CGColorRef _Nonnull)(objc_getAssociatedObject(color, vv_CGColorKey));

- (CGColorRef)CGColor

    return [VVThemeColor vv_CGColorOfColor:self];

@end