collection view cell 用 prepareForSegue 的时候，始终无法获得 cell 的 indexPath

[daiyuechuan]

override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {

        let cell = sender as! CateCollectionViewCell
        let indexPath = self.collectionView!.indexPathForCell(cell)


        var vc = segue.destinationViewController as! PostQuestionViewController
        vc.cate = data[indexPath.row]


    }

let indexPath = self.collectionView!.indexPathForCell(cell) 提示报错

Cannot invoke 'indexPathForCell' with argument list of type '(CateCollectionViewCell)'

CateCollectionViewCell是我自己创建的一个UICollectionViewCell

[daiyuechuan]

找到问题了

不能在UIViewController里直接这样来写，需要把控制器更改为UICollectionViewController