PickerView字体大小相应更改iOS Swift

let pickerView = UIPickerView()
view.addSubview(pickerView)

class ViewController: UIViewController, UIPickerViewDataSource, UIPickerViewDelegate {
    // 数据源
    let data = ["选项1", "选项2", "选项3"]
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        pickerView.dataSource = self
        pickerView.delegate = self
    }
    
    // 数据源方法
    func numberOfComponents(in pickerView: UIPickerView) -> Int {
        return 1 // 列数
    }
    
    func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
        return data.count // 行数
    }
    
    // 代理方法
    func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
        return data[row] // 返回每行的标题
    }
}

func pickerView(_ pickerView: UIPickerView, viewForRow row: Int, forComponent component: Int, reusing view: UIView?) -> UIView {
    let label = UILabel()
    label.text = data[row]
    label.font = UIFont.systemFont(ofSize: 20) // 设置字体大小
    return label
}