从Swift中的选定下拉选项获取数据

import UIKit

class ViewController: UIViewController, UIPickerViewDataSource, UIPickerViewDelegate {
    let data = ["Option 1", "Option 2", "Option 3"] // 下拉选项的数据
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        let pickerView = UIPickerView()
        pickerView.dataSource = self
        pickerView.delegate = self
        view.addSubview(pickerView)
    }
    
    // 实现UIPickerViewDataSource协议的方法
    func numberOfComponents(in pickerView: UIPickerView) -> Int {
        return 1 // 下拉选项的列数
    }
    
    func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
        return data.count // 下拉选项的行数
    }
    
    // 实现UIPickerViewDelegate协议的方法
    func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
        return data[row] // 返回每行的选项内容
    }
    
    func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
        let selectedOption = data[row] // 获取选中的选项
        print("Selected option: \(selectedOption)")
        
        // 在这里可以根据选项做相应的处理
    }
}