更改Swift上拾取器视图的颜色

let pickerView = UIPickerView()
pickerView.delegate = self
pickerView.dataSource = self

extension ViewController: UIPickerViewDelegate, UIPickerViewDataSource {
    func numberOfComponents(in pickerView: UIPickerView) -> Int {
        return 1 // 返回拾取器视图的列数
    }
    
    func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
        return colors.count // 返回拾取器视图的行数
    }
    
    func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
        return colors[row] // 返回每行的标题
    }
}

let colors = ["红色", "绿色", "蓝色", "黄色", "紫色"]

func pickerView(_ pickerView: UIPickerView, attributedTitleForRow row: Int, forComponent component: Int) -> NSAttributedString? {
    let color = colors[row]
    let attributes: [NSAttributedString.Key: Any] = [
        .foregroundColor: UIColor.red // 设置标题颜色
    ]
    return NSAttributedString(string: color, attributes: attributes)
}