我已显示该单元格，但我希望在按下按钮时将图像显示在集合视图单元格中

Question

我想在按下按钮时从数组中插入图像

func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {


       let cell = collectionView.dequeueReusableCellWithReuseIdentifier("Cell", forIndexPath: indexPath)
        cell.backgroundColor = UIColor.orangeColor()

        return cell
    }




    func buttonCreateStickerPressed(sender: UIButton!){
        let stickerName = "Sticker Number "+String(stickerDictionary.count+1)
        let stickerNumber = stickerDictionary.count+1
        makeSticker(stickerName, stickerNumber: stickerNumber)
        // let count = stickerArray.count



    }

Answer 1

您可以尝试reloadData然后设置图像，或者如果只对某些索引进行设置，则可以尝试reloadDataForRowIndexes：columnIndexes然后在选定的行中设置图像