UIPinchGestureRecognizer沒有得到所謂的

Question

，我真的不知道爲什麼當我這樣做的目標是沒有得到所謂：

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 
} 

調整大小的圖像是沒有得到調用。圖像顯示得很好

Answer 1

您需要設置imgView.userInteractionEnabled = YES。它默認爲「NO」。