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My question is actually about the timing that the layoutSubviews is being fired. Is it called when the scroll view starts to scroll? or, the scrolling is completed? or being fired during the scrolling?
Thanks
It’s fired on every frame of scrolling, every time the scroll view’s bounds change (which can happen up to 60 times per second). Eliza mentions this 14 minutes into the “Session 104 – Designing Apps with Scroll Views” video from WWDC 2010.
Sometimes it’s faster to just call
NSLogfrom a method than to wait for someone to answer you on stackoverflow. ;^)