import UIKit

class ViewController: UIViewController {

    //// Outlets //////////////////////////////////////////////////////////
    @IBOutlet weak var DateTextField: UITextField!

    @IBOutlet weak var ScrollView: UIScrollView!

    @IBOutlet weak var FirstTextView: UITextField!
    @IBOutlet weak var FirstName: UITextField!

    @IBOutlet weak var OtherDetailsField: UITextView!


    /////-------------------------------------------------

    /////-----------------------

    lazy var datePicker: UIDatePicker = {
        let picker = UIDatePicker()
        picker.datePickerMode = .date
        picker.addTarget(self, action: #selector(datePickerChanged(_:)), for: .valueChanged)
        return picker
    }()
    lazy var dateFormatter: DateFormatter = {
        let formatter = DateFormatter()
        formatter.dateStyle = .medium
        formatter.timeStyle = .none
        return formatter
    }()

    // Adjust Scroll for Keyboard ------------------
    @objc func adjustForKeyboard(notification: Notification) {
        guard let keyboardValue = notification.userInfo?[UIResponder.keyboardFrameEndUserInfoKey] as? NSValue else { return }
        let keyboardScreenEndFrame = keyboardValue.cgRectValue
        let keyboardViewEndFrame = view.convert(keyboardScreenEndFrame, from: view.window)
        if notification.name == UIResponder.keyboardWillHideNotification {
            ScrollView.contentInset = .zero
        } else {
            ScrollView.contentInset = UIEdgeInsets(top: 0, left: 0, bottom: keyboardViewEndFrame.height - view.safeAreaInsets.bottom, right: 0)
        }
        ScrollView.scrollIndicatorInsets = ScrollView.contentInset
      //  let selectedRange = OtherDetailsField.selectedRange
      //  OtherDetailsField.scrollRangeToVisible(selectedRange)
    }



    //// View Did Load  ///////////////////////////////////////

    override func viewDidLoad(){
        super.viewDidLoad()
        // Do any additional setup after loading the view.

        // Adjust Scroll for Keyboard ---------------
        let notificationCenter = NotificationCenter.default
        notificationCenter.addObserver(self, selector: #selector(adjustForKeyboard), name: UIResponder.keyboardWillHideNotification, object: nil)
        notificationCenter.addObserver(self, selector: #selector(adjustForKeyboard), name: UIResponder.keyboardWillChangeFrameNotification, object: nil)


        // Date Picker ---------------
        DateTextField.inputView = datePicker}
    @objc func datePickerChanged(_ sender: UIDatePicker){
        DateTextField.text = dateFormatter.string(from: sender.date)
    }
    override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?){view.endEditing(true)
    }

    // Dismiss Keyboard ------------------
    func setupKeyboardDismissRecognizer(){
        let tapRecognizer: UITapGestureRecognizer = UITapGestureRecognizer(
            target: self, action: #selector(ViewController.dismissKeyboard))
        tapRecognizer.cancelsTouchesInView = false
        self.view.addGestureRecognizer(tapRecognizer)
    }
    @objc func dismissKeyboard()
    {
        view.endEditing(true)
    }


    ///////
}
// Add Done Button to keypad toolbar -----------------
extension UITextField{

    @IBInspectable var doneAccessory: Bool{
        get{
            return self.doneAccessory
        }
        set (hasDone) {
            if hasDone{
                addDoneButtonOnKeyboard()
            }
        }
    }

    func addDoneButtonOnKeyboard()
    {
        let doneToolbar: UIToolbar = UIToolbar(frame: CGRect.init(x: 0, y: 0, width: UIScreen.main.bounds.width, height: 50))
        doneToolbar.barStyle = .default

        let flexSpace = UIBarButtonItem(barButtonSystemItem: .flexibleSpace, target: nil, action: nil)
        let done: UIBarButtonItem = UIBarButtonItem(title: "Done", style: .done, target: self, action: #selector(self.doneButtonAction))

        let items = [flexSpace, done]
        doneToolbar.items = items
        doneToolbar.sizeToFit()

        self.inputAccessoryView = doneToolbar
    }

    @objc func doneButtonAction()
    {
        self.resignFirstResponder()
    }
}
extension UITextView{

    @IBInspectable var doneAccessory: Bool{
        get{
            return self.doneAccessory
        }
        set (hasDone) {
            if hasDone{
                addDoneButtonOnKeyboard()
            }
        }
    }

    func addDoneButtonOnKeyboard()
    {
        let doneToolbar: UIToolbar = UIToolbar(frame: CGRect.init(x: 0, y: 0, width: UIScreen.main.bounds.width, height: 50))
        doneToolbar.barStyle = .default

        let flexSpace = UIBarButtonItem(barButtonSystemItem: .flexibleSpace, target: nil, action: nil)
        let done: UIBarButtonItem = UIBarButtonItem(title: "Done", style: .done, target: self, action: #selector(self.doneButtonAction))

        let items = [flexSpace, done]
        doneToolbar.items = items
        doneToolbar.sizeToFit()

        self.inputAccessoryView = doneToolbar
    }

    @objc func doneButtonAction()
    {
        self.resignFirstResponder()
    }
}

import UIKit

class ViewController2: UIViewController {

    //// Outlets //////////////////////////////////////////////////////////

        @IBOutlet weak var ScrollView: UIScrollView!



    // Adjust Scroll for Keyboard ------------------
    @objc func adjustForKeyboard(notification: Notification) {
        guard let keyboardValue = notification.userInfo?[UIResponder.keyboardFrameEndUserInfoKey] as? NSValue else { return }
        let keyboardScreenEndFrame = keyboardValue.cgRectValue
        let keyboardViewEndFrame = view.convert(keyboardScreenEndFrame, from: view.window)

        if notification.name == UIResponder.keyboardWillHideNotification {
            ScrollView.contentInset = .zero
        } else {
            ScrollView.contentInset = UIEdgeInsets(top: 0, left: 0, bottom: keyboardViewEndFrame.height - view.safeAreaInsets.bottom, right: 0)
        }
        ScrollView.scrollIndicatorInsets = ScrollView.contentInset
        //let selectedRange = yourTextView.selectedRange
        //yourTextView.scrollRangeToVisible(selectedRange)
    }


    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view.


        // Adjust Scroll for Keyboard ---------------
        let notificationCenter = NotificationCenter.default
        notificationCenter.addObserver(self, selector: #selector(adjustForKeyboard), name: UIResponder.keyboardWillHideNotification, object: nil)
        notificationCenter.addObserver(self, selector: #selector(adjustForKeyboard), name: UIResponder.keyboardWillChangeFrameNotification, object: nil)
    }

    /*
    // MARK: - Navigation

    // In a storyboard-based application, you will often want to do a little preparation before navigation
    override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
        // Get the new view controller using segue.destination.
        // Pass the selected object to the new view controller.
    }
    */
        // Dismiss Keyboard ------------------
        func setupKeyboardDismissRecognizer(){
            let tapRecognizer: UITapGestureRecognizer = UITapGestureRecognizer(
                target: self, action: #selector(ViewController.dismissKeyboard))
            tapRecognizer.cancelsTouchesInView = false
            self.view.addGestureRecognizer(tapRecognizer)
        }
        func dismissKeyboard()
        {
            view.endEditing(true)
        }
    }

import UIKit

class ViewController3: UIViewController {


    override func viewDidLoad() {
        super.viewDidLoad()



        // Do any additional setup after loading the view.
    }


    /*
    // MARK: - Navigation

    // In a storyboard-based application, you will often want to do a little preparation before navigation
    override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
        // Get the new view controller using segue.destination.
        // Pass the selected object to the new view controller.
    }
    */

}