NSObject+YBImageBrowser.m 636 B

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  1. //
  2. // NSObject+YBImageBrowser.m
  3. // YBImageBrowserDemo
  4. //
  5. // Created by 波儿菜 on 2019/9/26.
  6. // Copyright © 2019 杨波. All rights reserved.
  7. //
  8. #import "NSObject+YBImageBrowser.h"
  9. #import <objc/runtime.h>
  10. @implementation NSObject (YBImageBrowser)
  11. static void *YBIBOriginAlphaKey = &YBIBOriginAlphaKey;
  12. - (void)setYbib_originAlpha:(CGFloat)ybib_originAlpha {
  13. objc_setAssociatedObject(self, YBIBOriginAlphaKey, @(ybib_originAlpha), OBJC_ASSOCIATION_RETAIN_NONATOMIC);
  14. }
  15. - (CGFloat)ybib_originAlpha {
  16. NSNumber *alpha = objc_getAssociatedObject(self, YBIBOriginAlphaKey);
  17. return alpha ? alpha.floatValue : 1;
  18. }
  19. @end