我无法在注册表中添加性别的UIPickerview

import UIKit

class RegistrationViewController: UIViewController, UIPickerViewDataSource, UIPickerViewDelegate {
    let genderOptions = ["男", "女"]
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        let pickerView = UIPickerView()
        pickerView.dataSource = self
        pickerView.delegate = self
        
        // 设置UIPickerView的布局约束和样式
        
        // 将UIPickerView添加到注册表的相应位置
    }
    
    // MARK: - UIPickerViewDataSource
    
    func numberOfComponents(in pickerView: UIPickerView) -> Int {
        return 1
    }
    
    func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
        return genderOptions.count
    }
    
    // MARK: - UIPickerViewDelegate
    
    func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
        return genderOptions[row]
    }
    
    func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
        let selectedGender = genderOptions[row]
        // 处理选中性别的逻辑
    }
}