在Swift中将JSON数据解析为UIPickerView

import UIKit

class ViewController: UIViewController, UIPickerViewDelegate, UIPickerViewDataSource {
    
    @IBOutlet weak var pickerView: UIPickerView!
    
    var data: [String] = [] // 存储解析后的数据
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        // 从JSON文件或网络请求中获取JSON数据
        guard let jsonData = loadJSONData() else {
            return
        }
        
        // 解析JSON数据
        do {
            if let json = try JSONSerialization.jsonObject(with: jsonData, options: []) as? [String: Any] {
                if let items = json["items"] as? [String] {
                    data = items
                    pickerView.reloadAllComponents()
                }
            }
        } catch {
            print("JSON解析错误：\(error)")
        }
        
        // 设置PickerView的代理和数据源
        pickerView.delegate = self
        pickerView.dataSource = self
    }
    
    // 加载JSON数据的方法，可以根据实际情况进行修改
    func loadJSONData() -> Data? {
        if let path = Bundle.main.path(forResource: "data", ofType: "json") {
            do {
                let data = try Data(contentsOf: URL(fileURLWithPath: path), options: .mappedIfSafe)
                return data
            } catch {
                print("读取JSON文件错误：\(error)")
            }
        }
        return nil
    }
    
    // UIPickerViewDataSource协议方法，返回PickerView的列数
    func numberOfComponents(in pickerView: UIPickerView) -> Int {
        return 1
    }
    
    // UIPickerViewDataSource协议方法，返回PickerView的行数
    func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
        return data.count
    }
    
    // UIPickerViewDelegate协议方法，返回指定行的标题
    func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
        return data[row]
    }
}