ios - 如何强制 UIPickerView.selectRow 调用 didSelectRow 方法？

Question

运行UIPickerView.selectRow(4, inComponent: 0,动画:假)

或者存档的正确方法是什么？

我的实现

let pickerView = UIPickerView()

pickerView.delegate = self
pickerView.dataSource = self
pickerView.selectRow(0, inComponent: 0, animated: false)
textField.inputView = pickerView

func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {

}

Answer 1

选择行

 self.yourPickerViewName.selectRow(2, inComponent: 0, animated: true)

这是触发方法

 self.pickerView(self.yourPickerViewName, didSelectRow: 2, inComponent: 0)

将它们结合起来模拟用户操作