hiding the keyboard when I used PickerView with textField - ios

Question

I want to realize one simple app, but I have some trouble. I add textField and PickerView. When I tab at textField, PickerView is appeared. But standard keyboard is appeared too (I dont want it). And when I again tab on textField, PickerView don't appear. How can I receive this problem? Thank's a lot!
This is my code:
import UIKit
class ViewController: UIViewController, UIPickerViewDelegate, UIPickerViewDataSource, UITextFieldDelegate {
#IBOutlet weak var pickerView1: UIPickerView!
#IBOutlet weak var textField1: UITextField!
var age = ["8", "18", "28", "38", "48"]
func numberOfComponents(in pickerView: UIPickerView) -> Int {
return 1
}
func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
return age.count
}
func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
if pickerView == pickerView1 {
}
return age[row]
}
func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
if pickerView == pickerView1 {
self.textField1.text = self.age[row]
self.pickerView1.isHidden = true
}
}
func textFieldDidBeginEditing(_ textField: UITextField) {
if textField == self.textField1 {
self.pickerView1.isHidden = false
}
}
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}

Answer 1

why you are not try the simple way, just add your pickerview as inputview of your textfield
textField1.inputView = pickerView1
This will not give you a direct way to dismiss the view since your UIPickerView has no return button, which is why I recommend to use the inputAccessoryView property to display a toolbar with a done button
let myToolbar = UIToolbar(frame: CGRect(x: CGFloat(0), y: CGFloat(0), width: CGFloat(320), height: CGFloat(44)))
//should code with variables to support view resizing
let doneButton = UIBarButtonItem(barButtonSystemItem: .done, target: self, action: #selector(self.inputAccessoryViewDidFinish))
//using default text field delegate method here, here you could call
//myTextField.resignFirstResponder to dismiss the views
myToolbar.setItems([doneButton], animated: false)
lblcurrentText.inputAccessoryView = myToolbar
and call the function as
func inputAccessoryViewDidFinish() {
lblcurrentText.resignFirstResponder()
}
at the same time after selection on your pickerview hide the text field like
func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
if pickerView == pickerView1 {
self.textField1.text = self.age[row]
self.inputAccessoryViewDidFinish()
}
}
Tutorial
for example you can get the step by step tutorial in here