第一次点击 UITextField.inputView = UIPickerView 时会显示键盘

Question

关于这件事，我找不到任何关于 Swift 的内容。

我正在将 UIPickerView 配置为 inputView 用于 UITextField。

一切正常，但是当我第一次点击这个特定的 UITextField 时，显示的是键盘，而不是 UIPickerView，如果我再次点击它，[=显示 12=]。

有人知道我做错了什么吗？

查看我的部分代码。

@IBAction func textFieldEditingMot(sender: UITextField) {

    let motivoPicker: UIPickerView = UIPickerView()

    motivos = ["Pedido de demissão","Dispensa sem justa causa","Dispensa com justa causa", "Término do contrato de experiência"]

    motivoPicker.delegate = self
    motivoPicker.dataSource = self
    motivoTextField.inputView = motivoPicker

}

func numberOfComponentsInPickerView(pickerView: UIPickerView) -> Int
{
    return 1
}

func pickerView(pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int
{
    return motivos.count
}

func pickerView(pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int)
{
    motivoTextField.text = motivos[row]
}

func pickerView(pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String?
{
    return motivos[row]
}

Answer 1

确保您正在设置 UITextFieldDelegate，然后我也会移动所有这些：

let motivoPicker: UIPickerView = UIPickerView()

motivos = ["Pedido de demissão","Dispensa sem justa causa","Dispensa com justa causa", "Término do contrato de experiência"]

motivoPicker.delegate = self
motivoPicker.dataSource = self
motivoTextField.inputView = motivoPicker

查看DidLoad

第一次点击 UITextField.inputView = UIPickerView 时会显示键盘

Keyboard is showing on first tap for a UITextField.inputView = UIPickerView

ios

swift

uitextview

uipickerview

inputview