Solve "thread 1:" -[*.collectionnormalcellview isselected]: unrecognized selector sent to instance 0x7F "

problem ： Use xib File creation “ Customize UICollectionReusableView class ：CollectionNormalCellView” when , appear collapse , The console print information is as follows ：

---

Solution ： Get into xib file -> Select control -> Set up Custom Class by “UICollectionViewCell”, The operation path is as follows ：

---