编辑uitextfield后在集合视图中选择单元格

import UIKit

class ViewController: UIViewController, UICollectionViewDelegate, UICollectionViewDataSource, UITextFieldDelegate {
    @IBOutlet weak var collectionView: UICollectionView!
    @IBOutlet weak var textField: UITextField!
    
    let cellIdentifier = "Cell"
    var data = ["Item 1", "Item 2", "Item 3", "Item 4", "Item 5"]
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        // 设置集合视图的代理和数据源
        collectionView.delegate = self
        collectionView.dataSource = self
        
        // 设置UITextField的代理
        textField.delegate = self
    }
    
    // 实现UICollectionViewDataSource协议的方法
    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        return data.count
    }
    
    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
        let cell = collectionView.dequeueReusableCell(withReuseIdentifier: cellIdentifier, for: indexPath) as UICollectionViewCell
        cell.backgroundColor = UIColor.lightGray
        return cell
    }
    
    // 实现UITextFieldDelegate协议的方法
    func textFieldDidEndEditing(_ textField: UITextField) {
        // 获取用户输入的文本
        guard let inputText = textField.text else {
            return
        }
        
        // 根据用户输入的文本选择集合视图中的单元格
        if let index = data.firstIndex(of: inputText) {
            let indexPath = IndexPath(item: index, section: 0)
            
            // 选择单元格并滚动到选择的单元格
            collectionView.selectItem(at: indexPath, animated: true, scrollPosition: .centeredVertically)
            collectionView.scrollToItem(at: indexPath, at: .centeredVertically, animated: true)
        }
    }
}