dismiss keyboard with a uiTextView - swift

Question

I am sure this is not that difficult, but I am having trouble finding info on how to dismiss a keyboard with the return/done key using a textview, not a textfield. here is what I have tried so far(which works with a textfield.)
Thanks very much in advance for any help!
// PostTravelQuestion.swift
class PostTravelQuestion: UIViewController, UITextViewDelegate {
#IBAction func closepostpage(sender: AnyObject) {
dismissViewControllerAnimated(true, completion: nil)
}
#IBOutlet var postquestion: UITextView!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
postquestion.delegate = self
}
self addDoneToolBarToKeyboard:self.textView
/*func textViewShouldEndEditing(textView: UITextView) -> Bool {
textView.resignFirstResponder()
return true
}*/
/*override func touchesBegan(touches: NSSet, withEvent event: UIEvent) {
postquestion.resignFirstResponder()
self.view.endEditing(true)
}*/
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func textViewShouldReturn(textView: UITextView!) -> Bool {
self.view.endEditing(true);
return true;
}
}

Answer 1

This works for me:
import UIKit
class ViewController: UIViewController, UITextViewDelegate {
#IBOutlet weak var textView: UITextView!
override func viewDidLoad() {
super.viewDidLoad()
textView.delegate = self
}
/* Updated for Swift 4 */
func textView(_ textView: UITextView, shouldChangeTextIn range: NSRange, replacementText text: String) -> Bool {
if(text == "\n") {
textView.resignFirstResponder()
return false
}
return true
}
/* Older versions of Swift */
func textView(textView: UITextView, shouldChangeTextInRange range: NSRange, replacementText text: String) -> Bool {
if(text == "\n") {
textView.resignFirstResponder()
return false
}
return true
}
}

Answer 2

Add UITextViewDelegate to your class and then set your delegate for your textView or your textField in viewDidLoad. Should look something like this:
// in viewDidLoad
textField.delegate = self
textView.delegate = self
Swift 3
// hides text views
func textView(_ textView: UITextView, shouldChangeTextIn range: NSRange, replacementText text: String) -> Bool {
if (text == "\n") {
textView.resignFirstResponder()
return false
}
return true
}
// hides text fields
func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool {
if (string == "\n") {
textField.resignFirstResponder()
return false
}
return true
}
Swift 2.0
The below syntax has been tested for Swift 1.2 & Swift 2.0
func textView(textView: UITextView, shouldChangeTextInRange range: NSRange, replacementText text: String) -> Bool {
if(text == "\n") {
textView.resignFirstResponder()
return false
}
return true
}

Answer 3

Below code will dismissing the keyboard when click return/done key on UITextView.
In Swift 3.0
import UIKit
class ViewController: UIViewController, UITextViewDelegate {
#IBOutlet var textView: UITextView!
override func viewDidLoad() {
super.viewDidLoad()
textView.delegate = self
}
func textView(_ textView: UITextView, shouldChangeTextIn range: NSRange, replacementText text: String) -> Bool
{
if(text == "\n")
{
view.endEditing(true)
return false
}
else
{
return true
}
}
In Swift 2.2
func textView(textView: UITextView, shouldChangeTextIn range: NSRange, replacementText text: String) -> Bool
{
if text == "\n"
{
view.endEditing(true)
return false
}
else
{
return true
}
}

Answer 4

Easiest and best way to do this using UITextView Extension.
Credit: http://www.swiftdevcenter.com/uitextview-dismiss-keyboard-swift/
Your ViewController Class
class ViewController: UIViewController {
#IBOutlet weak var myTextView: UITextView!
override func viewDidLoad() {
super.viewDidLoad()
// 1
self.myTextView.addDoneButton(title: "Done", target: self, selector: #selector(tapDone(sender:)))
}
// 2
#objc func tapDone(sender: Any) {
self.view.endEditing(true)
}
}
Add UITextView Extension
extension UITextView {
func addDoneButton(title: String, target: Any, selector: Selector) {
let toolBar = UIToolbar(frame: CGRect(x: 0.0,
y: 0.0,
width: UIScreen.main.bounds.size.width,
height: 44.0))//1
let flexible = UIBarButtonItem(barButtonSystemItem: .flexibleSpace, target: nil, action: nil)//2
let barButton = UIBarButtonItem(title: title, style: .plain, target: target, action: selector)//3
toolBar.setItems([flexible, barButton], animated: false)//4
self.inputAccessoryView = toolBar//5
}
}
For more detail: visit full documentation

Answer 5

to hide the keyboard touch on any part outside the textbox or textviews in swift 4 use this peace of code in the ViewController class:
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
view.endEditing(true)
super.touchesBegan(touches, with event: event)
}
Regards

Answer 6

Building on the answers of others (kudos!), here is my minimalistic take on it:
import UIKit
extension UITextView {
func withDoneButton(toolBarHeight: CGFloat = 44) {
guard UIDevice.current.userInterfaceIdiom == .phone else {
print("Adding Done button to the keyboard makes sense only on iPhones")
return
}
let toolBar = UIToolbar(frame: CGRect(x: 0.0, y: 0.0, width: UIScreen.main.bounds.width, height: toolBarHeight))
let flexibleSpace = UIBarButtonItem(barButtonSystemItem: .flexibleSpace, target: nil, action: nil)
let doneButton = UIBarButtonItem(barButtonSystemItem: .done, target: self, action: #selector(endEditing))
toolBar.setItems([flexibleSpace, doneButton], animated: false)
inputAccessoryView = toolBar
}
}
Usage:
override func viewDidLoad() {
super.viewDidLoad()
textView.withDoneButton()
}