如何在集合视图中手动选择下一个关注的索引路径

class ViewController: UIViewController, UICollectionViewDataSource, UICollectionViewDelegate {
    @IBOutlet weak var collectionView: UICollectionView!
    
    var data = ["Item 1", "Item 2", "Item 3", "Item 4", "Item 5"]
    var selectedIndex = 0
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        collectionView.dataSource = self
        collectionView.delegate = self
    }
    
    // MARK: - UICollectionViewDataSource
    
    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        return data.count
    }
    
    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
        let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "Cell", for: indexPath)
        cell.textLabel.text = data[indexPath.item]
        return cell
    }
    
    // MARK: - UICollectionViewDelegate
    
    func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
        // 获取当前选中的索引路径
        let currentIndexPath = collectionView.indexPathsForSelectedItems?.first ?? IndexPath(item: 0, section: 0)
        
        // 计算下一个关注的索引路径
        let nextIndexPath = IndexPath(item: currentIndexPath.item + 1, section: currentIndexPath.section)
        
        // 滚动到下一个关注的索引路径
        collectionView.scrollToItem(at: nextIndexPath, at: .centeredVertically, animated: true)
    }
}