ifletattributes =self.collect_Var3_View.layoutAttributesForItem(at:IndexPath(item:0, section: $0)) {
self.collect_Var3_View.setContentOffset(CGPoint(x:0, y: attributes.frame.minY-_Num(key:44)), animated:true)
}
ifletattributes =self.collect_Var3_View.layoutAttributesForItem(at:IndexPath(item:0, section: $0)) {
self.collect_Var3_View.setContentOffset(CGPoint(x:0, y: attributes.frame.minY-_Num(key:44)), animated:true)
}
本文标题:UICollectionView滑动到指定组 组头上移问题
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