ios - 无法在左侧显示长长的 collectionviewcell，在右侧显示小单元格

Question

我有一个 UICollectionView，它在顶部显示 2 个单元格，在底部显示 3 个单元格，如

中所示

This link

override func viewDidLoad() {
    super.viewDidLoad()
           let layout = UICollectionViewFlowLayout()
    layout.minimumLineSpacing = 5
    layout.minimumInteritemSpacing = 5

    collectionview2.delegate = self
    collectionview2.dataSource = self
    collectionview2.register(UICollectionViewCell.self, forCellWithReuseIdentifier: "ident")

    }
  }


  func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
      return 5
    }


func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
 switch indexPath.item {
      case 0,1:
        return CGSize(width: (UIScreen.main.bounds.width - 16) / 2, height: (UIScreen.main.bounds.width - 16) / 2)
      default:
        return CGSize(width: (UIScreen.main.bounds.width - 32) / 3, height:  (UIScreen.main.bounds.width) / 3)
      }
}



func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
     let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "ident", for: indexPath)
      cell.backgroundColor = .red
      return cell

}

但是我想像这样在左边显示一个长单元格，在右边显示 2 个小单元格......

那么我需要在我的答案中做出哪些改变......？

EDIT 1 这是最新的输出...

代码在sizeForItemAt..

func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
 switch indexPath.item {
      case 0,3:
        return CGSize(width: (UIScreen.main.bounds.width - 16) / 2, height: (UIScreen.main.bounds.width - 16) / 2)
      case 1,2,4:
         return CGSize(width: (UIScreen.main.bounds.width - 32) / 3, height:  (UIScreen.main.bounds.width) / 3)
      default:
        return CGSize(width: (UIScreen.main.bounds.width - 32) / 3, height:  (UIScreen.main.bounds.width) / 3)
      }

}

输出:

Answer 1

检查这可能对你有帮助:)

DynamicHeightForCollectionView