UIView的范畴导致无法识别选择错误

Question

我，是造成我想不通这是该类别的.H错误一个UIView类别：

#import <UIKit/UIKit.h> 

typedef NS_ENUM(NSUInteger, BCRectEdge) { 
    BCRectEdgeTop = 0, 
    BCRectEdgeLeft = 1, 
    BCRectEdgeBottom = 2, 
    BCRectEdgeRight = 3 
}; 

@interface UIView (Genie) 

/* 
* After the animation has completed the view's transform will be changed to match the destination's rect, i.e. 
* view's transform (and thus the frame) will change, however the bounds and center will *not* change. 
*/ 

- (void)genieInTransitionWithDuration:(NSTimeInterval)duration 
         destinationRect:(CGRect)destRect 
         destinationEdge:(BCRectEdge)destEdge 
          completion:(void (^)())completion; 



/* 
* After the animation has completed the view's transform will be changed to CGAffineTransformIdentity. 
*/ 

- (void)genieOutTransitionWithDuration:(NSTimeInterval)duration 
          startRect:(CGRect)startRect 
          startEdge:(BCRectEdge)startEdge 
          completion:(void (^)())completion; 

@end 

然后它我将其导入到一个视图控制器。创建一个新的UIView并使用其中一种方法。它建议这种方法，因为我开始打字，如果我定义它，它会去正确的地方。但是，当我运行它，它说：

'-[UIView genieInTransitionWithDuration:destinationRect:destinationEdge:completion:]: unrecognized selector sent to instance 0x1552c220' 

有什么想法？快把我逼疯。

Answer 1

扩展名在创建时出于某种原因未被添加到目标中。添加它解决了问题。