UIPinchGestureRecognizer没有得到所谓的

Question

，我真的不知道为什么当我这样做的目标是没有得到所谓：

UIImage * imgSrc = [UIImage imageWithData:[NSData dataWithContentsOfURL:[NSURL URLWithString:imageSource]]]; 
      UIImageView * imgView = [[[UIImageView alloc] initWithImage:imgSrc] retain]; 

      UIPinchGestureRecognizer * pinchGestureRecognizer = [[UIPinchGestureRecognizer alloc] initWithTarget:self action:@selector(resizeImage:)]; 
      [imgView addGestureRecognizer:pinchGestureRecognizer]; 
      [pinchGestureRecognizer release]; 

- (IBAction)resizeImage:(UIPinchGestureRecognizer *)sender 
{ 
    //not getting here 
} 

调整大小的图像是没有得到调用。图像显示得很好

Answer 1

您需要设置imgView.userInteractionEnabled = YES。它默认为“NO”。