我已顯示該單元格，但我希望在按下按鈕時將圖像顯示在集合視圖單元格中

Question

我想在按下按鈕時從數組中插入圖像

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

您可以嘗試reloadData然后設置圖像，或者如果只對某些索引進行設置，則可以嘗試reloadDataForRowIndexes：columnIndexes然后在選定的行中設置圖像