Hello, below are the lines of code where the error is found. It seems to me that I have declared the function "picker" ( UIDatePicker) however I get an error that "Cannot find 'picker' in scope" ( the error is displayed on line 66, next to " let pickedDatetime = picker.time"
import UIKit
class DateViewController: UIViewController, UITextFieldDelegate {
private let field: UITextField = {
let field = UITextField(frame: CGRect (x: 220, y: 220, width: 100, height: 100))
field.placeholder = "Enter Text"
field.becomeFirstResponder()
return field
}()
private let Buttonb: UIButton = {
let Buttonb = UIButton(frame: CGRect (x: 157, y: 470, width: 100, height: 150))
Buttonb.addTarget(self, action: #selector(didTapButtonValidate), for: .touchUpInside)
Buttonb.setTitle( "save", for: .normal)
Buttonb.addTarget(self, action: #selector(didTapButtonValidate), for: .touchUpInside)
return Buttonb
}()
private let returnButton = UIButton()
public var completionHandler: ((String, Date) -> Void)?
override func viewDidLoad() {
super.viewDidLoad()
view.backgroundColor = .systemTeal
view.addSubview(field)
view.addSubview(Buttonb)
field.becomeFirstResponder()
field.delegate = self
let picker = UIDatePicker()
picker.datePickerMode = .time
picker.timeZone = NSTimeZone.local
picker .frame = CGRect(x: 10,y : 50, width: self.view.frame.width, height: 200)
self.view.addSubview(picker)
title = "New timer"
navigationItem.rightBarButtonItem = UIBarButtonItem(title: "Dismiss",
style: .plain,
target: self,
action: #selector(dismissSelf))
returnButton.setTitle("Push Another controller", for: .normal)
view.addSubview(returnButton)
returnButton .backgroundColor = .white
returnButton.setTitleColor(.black, for: .normal)
returnButton.frame = CGRect(x: 100, y: 100, width: 200, height: 52)
returnButton.addTarget(self, action: #selector(didTapreturmButton), for: .touchUpInside)
}
@objc private func didTapButtonValidate( sender: UIButton) {
if let text = field.text, !text.isEmpty {
// the mistake "Cannot find 'picker' in scope" is displayed just below
let pickedDatetime = picker.time
completionHandler?(text, pickedDatetime)
navigationController?.popToRootViewController(animated: true)
}
}
@objc private func didTapreturmButton(){
let vc = SecondViewController()
vc.view.backgroundColor = .white
navigationController?.pushViewController(vc, animated: true)
}
@objc private func dismissSelf() {
dismiss(animated: true, completion: nil)
}
func textFieldShouldReturn(_ textField: UITextField) -> Bool {
textField.resignFirstResponder()
return true
}
}```
When I add the function over the override func like that
```Swift
private let picker = UIDatePicker {
picker.datePickerMode = .time
return picker
}()
```
**** I get the error message "No exact matches in call to initializer " which I don't understand either. However the other error message disappears afterwards. Does anyone know how to fix this problem?
Thanks in advance****
