ios - 单击在数组中添加/删除时，Swift Collection View didSelectItemAtIndexPath

Question

我有 swift collection view 和 items ，我想将单击的每个项目添加到数组中，再次单击时相同的项目将在数组中删除。我的代码在这里。

我的数组

var services = [""]

我的 didSelectItemAtIndexPath 代码

   func collectionView(collectionView: UICollectionView, didSelectItemAtIndexPath indexPath: NSIndexPath) {


           let clickeditem = items[indexPath.section].services[indexPath.item - 1]
                print(clickeditem) // here clicked item this item will be add to services array when first click, after clicked again will be remove in services array


    }

clickeditem // will be add to services array when first click, after clicked again will be remove in services array

Answer 1

你可以使用结构，所以:

struct Item {
    let indexPath: NSIndexPath 
    let value: AnyObject
}

services.append(Item(indexPath, value: clickeditem))

然后要删除，您可以迭代并检查具有该 indexPath 的元素:

for item in services {
    if item.indexPath == indexPath {
        //remove your item and whatever you want
    }
}