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有一个UIScrollView的私有方法,应该允许我控制内容偏移动画的速度。但是,当我将其覆盖在我的课是这样的...UIScrollView覆盖
- (void)setContentOffsetAnimationDuration:(CFTimeInterval)value
{
_contentOffsetAnimationDuration = 10;
}
[self setContentOffset:offset animated:YES];
我得到一个编译错误这样的...
Undefined symbols for architecture armv7:
"_OBJC_IVAR_$_UIScrollView._contentOffsetAnimationDuration", referenced from:
-[HistoryScrollView setContentOffsetAnimationDuration:] in HistoryScrollView.o
ld: symbol(s) not found for architecture armv7
collect2: ld returned 1 exit status
任何想法。我真的不想把一些笨拙的动画代码放到这里。它非常接近修复。