如果我了解您的问题，那么您需要：
这是完整的代码来管理它，您只需链接您的代理UITextField：
@IBOutlet var textfieldBizCat: UITextField!
@IBOutlet var pickerBizCat: UIPickerView! = UIPickerView()
var bizCat = ["Cat One", "Cat Two", "Cat Three"]
override func viewDidLoad() {
super.viewDidLoad()
pickerBizCat.hidden = true;
textfieldBizCat.text = bizCat[0]
}
// returns the number of 'columns' to display.
func numberOfComponentsInPickerView(pickerView: UIPickerView!) -> Int{
return 1
}
// returns the # of rows in each component..
func pickerView(pickerView: UIPickerView!, numberOfRowsInComponent component: Int) -> Int{
return bizCat.count
}
func pickerView(pickerView: UIPickerView!, titleForRow row: Int, forComponent component: Int) -> String! {
return bizCat[row]
}
func pickerView(pickerView: UIPickerView!, didSelectRow row: Int, inComponent component: Int)
{
textfieldBizCat.text = bizCat[row]
pickerBizCat.hidden = true;
}
func textFieldShouldBeginEditing(textField: UITextField) -> Bool {
pickerBizCat.hidden = false
return false
}
我对您的代码所做的更改：
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