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I may be slow to respond.
Wenchao Ding
WenchaoD
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I may be slow to respond.
"Never memorize what you can look up in books." - Albert Einstein ( https://en.wikiquote.org/wiki/Albert_Einstein )
Subclass UICollectionViewFlowLayout to build a tag layout, and make UICollectionView scrolling smonthly while it holds dozens of cells with round corner