iphone – 如何在枚举UIScrollView的子视图时排除滚动指示器？

我正在尝试在UIScrollView子类中调整我的子视图,但我不想打扰滚动指示器.似乎没有任何公共接口来访问这些并且我想检查视图是否是滚动指示符之一(以便我可以忽略它).

UIScrollView.h声明了这两个iVar：

UIImageView* _verticalScrollInDicator;
UIImageView* _horizontalScrollInDicator;

…但我尝试了以下内容并收到链接器错误：

for(UIView* v in self.subviews)
{
    // Ignore the scroll-inDicator views
    if( (v == _horizontalScrollInDicator) ||
        (v == _verticalScrollInDicator))
    {
        conTinue;
    }
    // View is one of mine - do stuff to it...
}

Apple显然不希望你搞砸这些,在这种情况下,他们应该做一些聪明的事情,以便从子视图返回的数组不包括它们(来到Apple,它不是那么难！),但在那之前,我怎么能忽略他们？

BOOL showsVerticalScrollInDicator = self.showsVerticalScrollInDicator;
BOOL showsHorizontalScrollInDicator = self.showsHorizontalScrollInDicator;

self.showsVerticalScrollInDicator = NO;
self.showsHorizontalScrollInDicator = NO;

// loop through self.subviews here

self.showsVerticalScrollInDicator = showsVerticalScrollInDicator;
self.showsHorizontalScrollInDicator = showsHorizontalScrollInDicator;