Ios 我在UICollectionViewCell中有复选框图像，我想显示为选中还是未选中？

我想使用全选和全选

ui按钮来全选和全选
collectionView
的所有单元格？
请帮助任何人

//Delegate Method cellForItemAtIndexPath
func collectionView(collectionView: UICollectionView,
cellForItemAtIndexPath indexPath: NSIndexPath) ->
UICollectionViewCell
{
    //Get a reference to our storyboard cell
    let cell = collectionView.dequeueReusableCellWithReuseIdentifier(
                                                            "pickSomecell",
                  forIndexPath: indexPath) as!      pickSomeGridViewController
    //Show Images in grid view
    cell.cellImage.image = self.arrAllOriginalImages[indexPath.row] as? UIImage
     cell.toggleSelected()

     //return cell.
     return cell
}

谢谢
试着做以下事情-

 var isSelectAll=false


    func collectionView(collectionView: UICollectionView,
                        cellForItemAtIndexPath indexPath: NSIndexPath) ->
        UICollectionViewCell
    {
        //Get a reference to our storyboard cell
        let cell = collectionView.dequeueReusableCellWithReuseIdentifier(
            "pickSomecell",
            forIndexPath: indexPath)
        //Show Images in grid view

        if isSelectAll {

            cell.cellImage.image = selectedImage;
        }else{
            cell.cellImage.image = desselectedImage;
        }


        return cell
    }

@IBAction func selectAllcell(sender: AnyObject) {

    isSelectAll=true
    collectionView.reloadData()

}

@IBAction func deselectAllcell(sender: AnyObject) {

    isSelectAll=false
    collectionView.reloadData()

}

你的意思是你在UICollectionViewCell中有复选框图像，你想显示为选中或未选中？是@BhumitMehta，但我想一起选择所有图像。你能在CellForItemAtIndexPath中发布你的代码吗？是的，当然@BhumitMehta ThanksOk，让我试试。谢谢。