在 CollectionView 中关闭已使用的单元格并打开未使用的单元格

Question

我尝试在 collectionView 中关闭使用的单元格并打开未使用的单元格。我认为需要在 func collectionView(_ collectionView: UICollectionView, shouldSelectItemAt indexPath: IndexPath) -> Bool

我有字符串数组：

var arrayOfStrings: [String] = ["01:00", "05:00", "06:00", "07:00"]

我需要 close 来选择在我的 collectionView 中有来自 arrayOfStrings 的字符串的单元格，然后 open 单元格选择我的阵列中不存在的那个。

我该怎么做？

我是密码：

var allTimeArray: [String] = ["01:00", "02:00", "03:00", "04:00", "05:00", "06:00", "07:00", "08:00", "09:00", "10:00", "11:00", "12:00", "13:00", "14:00", "15:00", "16:00"]
var arrayOfStrings: [String] = ["01:00", "05:00", "06:00", "07:00"]

func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {

    return allTimeArray.count

}

func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {

    let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "timeCell", for: indexPath) as! BookTimeCell

    cell.timeLabel.text = allTimeArray[indexPath.item]

    return cell

}

func collectionView(_ collectionView: UICollectionView, shouldSelectItemAt indexPath: IndexPath) -> Bool {

    // i think need use IF...
    return true

}

还有我的收藏查看图片：

Answer 1

您可以尝试搜索 arrayOfStrings 是否包含要显示的项目，return false 关闭选择

func collectionView(_ collectionView: UICollectionView, shouldSelectItemAt indexPath: IndexPath) -> Bool {

 let item = allTimeArray[indexPath.row]
    for er in arrayOfStrings
     if(er == item)
       return false

  return true

}

或者简而言之

 func collectionView(_ collectionView: UICollectionView, shouldSelectItemAt indexPath: IndexPath) -> Bool {


     return !(arrayOfStrings.contains(allTimeArray[indexPath.row]))


}

Answer 2

func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {

    let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "timeCell", for: indexPath) as! BookTimeCell

    cell.timeLabel.text = allTimeArray[indexPath.item]

    if arrayOfStrings.contains(cell.timeLAbel.text) {
        //configure for choosed cell.
    } 
    else {
        //Configure for open cell.
    }

    return cell

}


func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath)
{
    let selectedString = allTimeArray[indexPath.item]
    if !arrayOfStrings.contains(selectedString)
    {
        arrayOfStrings.append(selectedString)

        //Reload the cell at indexpath.
        collectionView.reloadItems(at: [indexPath])
    }
}

在 CollectionView 中关闭已使用的单元格并打开未使用的单元格

Close used cells and open unused cells in CollectionView

collections

xcode

ios

uicollectionviewcell

swift