在选择时关闭作为 UITextField 输入视图的 UIPickerView

Question

I'm trying to close my UIPickerView when a selection was made:

    let pickerElement = UIPickerView()
    let textfieldElement = UITextField()

    textfieldElement.inputView = pickerElement
    pickerElement.delegate = self
    pickerElement.dataSource = self

    // ...
    func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
        textfieldElement.text = options[row].label as? String
        selectedElementId = options[row].id
        // this is not doing anything
        pickerElement.resignFirstResponder()
        pickerView.resignFirstResponder()
        
        // leaves the grey view open
        pickerElement.isHidden = true
        pickerView.isHidden = true
    }

This does not seem to work, it leaves open the grey view at the bottom:

Answer 1

You need to resign the text field instead of the picker or anything else.

Add this

textfieldElement.resignFirstResponder()

or you can also use

self.view.endEditing(true)

Note: Remove all other things like resign to other views or hide.