在滾動視圖中獲取圖像標簽

Question

我有一個使用以下代碼創建的滾動視圖：

NSUInteger i;
for (i = 1; i <= kNumImages; i++)
{
    imageName = [NSString stringWithFormat:image, i];
    UIImage *image = [UIImage imageNamed:imageName];
    UIImageView *imageView = [[UIImageView alloc] initWithImage:image];

    CGRect rect = imageView.frame;
    rect.size.height = kScrollObjHeight;
    rect.size.width = kScrollObjWidth;
    imageView.frame = rect;
    imageView.tag = i;  // tag our images for later use when we place them in serial fashion
    [bigScrollView addSubview:imageView];
}

如何獲取視圖中當前圖像的標簽？

Answer 1

您可以通過獲取bigScrollView的所有子視圖來獲取標簽。

 for(UIView *subview in [bigScrollView subviews])
 {
     if([subview isKindOfClass:[UIImageView class]])
     {
         NSLog("%d",[subview tag]);
     }
 }