I have UITextField and UIButton in my application.
To hide system keyboard which is shown when UITextField is clicked, I added UITapGestureRecognizer to my view.
override func viewDidLoad() {
super.viewDidLoad()
let tapGesture = UITapGestureRecognizer.init(target: self, action: #selector(didTap(_:)))
view.addGestureRecognizer(tapGesture)
}
#objc func didTap(_ recognizer: UIGestureRecognizer) {
view.endEditing(true)
}
#IBAction func onClickedButton(_ sender: Any) {
print("aaa")
}
This code worked very well when I touched outside of my button.
However, when I clicked the button which has IBAction(onClickedButton), the keyboard did not disappear and only the message "aaa" printed in output console.
What I want to do is to hide keyboard and invoke IBAction at the same time. In other words, I want to invoke Tap gesture and IBAction at the same time, when I clicked my button.
How can I acheive this?
I found the solution.
Just setting
tapGesture.cancelsTouchesInView = false
can acheive this.
By doing like this, tapGesture hides keyboard and after that, passes touch event to the UIButton.
You can just add view.endEditing(true) to your onClickedButton.
try this
import UIKit
class ViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
let tapGesture = UITapGestureRecognizer.init(target: self, action: #selector(didTap(_:)))
view.addGestureRecognizer(tapGesture)
}
#objc func didTap(_ recognizer: UIGestureRecognizer) {
view.endEditing(true)
}
#IBAction func onClickedButton(_ sender: Any) {
print("aaa")
view.endEditing(true)
}
}
I have a UITabBar containing 5 tabs. I disabled one of the tabs like this:
tabBar.items?[3].isEnabled = false
To enable it again, I am using the following code:
tabBar.items?[3].isEnabled = true
The problem is that it doesn't actually get enabled again. I also tried to place the above code inside viewWillAppear and viewDidAppear, but the tab stays disabled.
Here's the full code:
import UIKit
class MainTabViewController: UITabBarController {
override func viewDidLoad() {
super.viewDidLoad()
tabBar.items?[0].title = NSLocalizedString("tab1", comment: "-")
tabBar.items?[1].title = NSLocalizedString("tab2", comment: "-")
tabBar.items?[2].title = NSLocalizedString("tab3", comment: "-")
tabBar.items?[3].title = NSLocalizedString("tab4", comment: "-")
tabBar.items?[4].title = NSLocalizedString("tab5", comment: "-")
self.tabBar.items?[3].isEnabled = true
// Do any additional setup after loading the view.
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
}
override func viewWillDisappear(_ animated: Bool) {
super.viewWillDisappear(animated)
}
override func viewDidAppear(_ animated: Bool) {
super.viewDidAppear(animated)
}
}
It should be the tabBar property of the UITabBarController.
self.tabBarController?.tabBar.items?[3].isEnabled = false
If you call it from inside the custom UITabBarController subclass:
self.tabBar.items?[3].isEnabled = false
Make sure viewWillAppear and viewDidAppear of the custom UITabBarController subclass are called only once, unlike the methods in every tab, since they are called every time the tab is selected.
The below code seems to work fine:
self.tabBar.items?[3].isEnabled = false
DispatchQueue.main.asyncAfter(deadline: .now() + 3) {
self.tabBar.items?[3].isEnabled = true
}
In the shortcut bar of iOS virtual keyboard there is an undo button that undoes the editing. Is there a way to associate an arbitrary button to that function?
From iOS 8, shaking the device should trigger the undo operation. Your view controller should be the first responders so it can response to the undo trigger. You can have that by becoming the first responder one the view is about to appear and then resign it when it is about to disappear
override func viewDidAppear(animated: Bool) {
super.viewDidAppear(animated)
becomeFirstResponder()
}
override func viewWillDisappear(animated: Bool) {
super.viewWillDisappear(animated)
resignFirstResponder()
}
override func canBecomeFirstResponder() -> Bool {
return true
}
override func viewDidLoad() {
super.viewDidLoad()
}
Here is the solution I implemented (the same can be done for the redo function).
import UIKit
class ViewController: UIViewController, UITextViewDelegate {
#IBAction func undoButtonPressed(sender: AnyObject) {
mainTextField.undoManager?.undo()
enableDisableUndoButton()
}
func enableDisableUndoButton() { // to disable or enable the button when needed
if mainTextField.undoManager?.canUndo == true {
undoButton.enabled = true
} else {
undoButton.enabled = false
}
}
func textViewDidChange(mainTextField: UITextView) { // monitors when user makes changes in the text field
enableDisableUndoRedoButtons()
}
}
To get undoManager to take notes of the text changes made via code on the field, I use this:
mainTextField.replaceRange((theRange), withText: newStr)
I have been looking all over for this but I can't seem to find it. I know how to dismiss the keyboard using Objective-C but I have no idea how to do that using Swift? Does anyone know?
override func viewDidLoad() {
super.viewDidLoad()
//Looks for single or multiple taps.
let tap = UITapGestureRecognizer(target: self, action: #selector(UIInputViewController.dismissKeyboard))
//Uncomment the line below if you want the tap not not interfere and cancel other interactions.
//tap.cancelsTouchesInView = false
view.addGestureRecognizer(tap)
}
//Calls this function when the tap is recognized.
#objc func dismissKeyboard() {
//Causes the view (or one of its embedded text fields) to resign the first responder status.
view.endEditing(true)
}
Here is another way to do this task if you are going to use this functionality in multiple UIViewControllers:
// Put this piece of code anywhere you like
extension UIViewController {
func hideKeyboardWhenTappedAround() {
let tap = UITapGestureRecognizer(target: self, action: #selector(UIViewController.dismissKeyboard))
tap.cancelsTouchesInView = false
view.addGestureRecognizer(tap)
}
#objc func dismissKeyboard() {
view.endEditing(true)
}
}
Now in every UIViewController, all you have to do is call this function:
override func viewDidLoad() {
super.viewDidLoad()
self.hideKeyboardWhenTappedAround()
}
This function is included as a standard function in my repo which contains a lot of useful Swift Extensions like this one, check it out: https://github.com/goktugyil/EZSwiftExtensions
An answer to your question on how to dismiss the keyboard in Xcode 6.1 using Swift below:
import UIKit
class ItemViewController: UIViewController, UITextFieldDelegate {
#IBOutlet var textFieldItemName: UITextField!
#IBOutlet var textFieldQt: UITextField!
#IBOutlet var textFieldMoreInfo: UITextField!
override func viewDidLoad() {
super.viewDidLoad()
textFieldItemName.delegate = self
textFieldQt.delegate = self
textFieldMoreInfo.delegate = self
}
...
/**
* Called when 'return' key pressed. return NO to ignore.
*/
func textFieldShouldReturn(textField: UITextField) -> Bool {
textField.resignFirstResponder()
return true
}
/**
* Called when the user click on the view (outside the UITextField).
*/
override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
self.view.endEditing(true)
}
}
(Source of this information).
Swift 4 working
Create extension as below & call hideKeyboardWhenTappedAround() in your Base view controller.
//
// UIViewController+Extension.swift
// Project Name
//
// Created by ABC on 2/3/18.
// Copyright © 2018 ABC. All rights reserved.
//
import UIKit
extension UIViewController {
func hideKeyboardWhenTappedAround() {
let tapGesture = UITapGestureRecognizer(target: self,
action: #selector(hideKeyboard))
view.addGestureRecognizer(tapGesture)
}
#objc func hideKeyboard() {
view.endEditing(true)
}
}
Most important thing to call in your Base View Controller so that no need to call all time in all view controllers.
You can call
resignFirstResponder()
on any instance of a UIResponder, such as a UITextField. If you call it on the view that is currently causing the keyboard to be displayed then the keyboard will dismiss.
swift 5 just two lines is enough. Add into your viewDidLoad should work.
let tapGesture = UITapGestureRecognizer(target: view, action: #selector(UIView.endEditing))
view.addGestureRecognizer(tapGesture)
If your tap gesture blocked some other touches, then add this line:
tapGesture.cancelsTouchesInView = false
for Swift 3 it is very simple
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
self.view.endEditing(true)
}
if you want to hide keyboard on pressing RETURN key
func textFieldShouldReturn(_ textField: UITextField) -> Bool {
textField.resignFirstResponder()
return true
}
but in second case you will also need to pass delegate from all textFields to the ViewController in the Main.Storyboard
//Simple exercise to demonstrate, assuming the view controller has a //Textfield, Button and a Label. And that the label should display the //userinputs when button clicked. And if you want the keyboard to disappear //when clicken anywhere on the screen + upon clicking Return key in the //keyboard. Dont forget to add "UITextFieldDelegate" and
//"self.userInput.delegate = self" as below
import UIKit
class ViewController: UIViewController,UITextFieldDelegate {
#IBOutlet weak var userInput: UITextField!
#IBAction func transferBtn(sender: AnyObject) {
display.text = userInput.text
}
#IBOutlet weak var display: UILabel!
override func viewDidLoad() {
super.viewDidLoad()
//This is important for the textFieldShouldReturn function, conforming to textfieldDelegate and setting it to self
self.userInput.delegate = self
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
//This is for the keyboard to GO AWAYY !! when user clicks anywhere on the view
override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
self.view.endEditing(true)
}
//This is for the keyboard to GO AWAYY !! when user clicks "Return" key on the keyboard
func textFieldShouldReturn(textField: UITextField) -> Bool {
textField.resignFirstResponder()
return true
}
}
Swift 3:
Easiest way to dismiss keyboard:
//Dismiss keyboard method
func keyboardDismiss() {
textField.resignFirstResponder()
}
//ADD Gesture Recignizer to Dismiss keyboard then view tapped
#IBAction func viewTapped(_ sender: AnyObject) {
keyboardDismiss()
}
//Dismiss keyboard using Return Key (Done) Button
//Do not forgot to add protocol UITextFieldDelegate
func textFieldShouldReturn(_ textField: UITextField) -> Bool {
keyboardDismiss()
return true
}
In swift you can use
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
super.touchesBegan(touches, with: event)
view.endEditing(true)
}
Just one line of code in viewDidLoad() method:
view.addGestureRecognizer(UITapGestureRecognizer(target: view, action: #selector(UIView.endEditing(_:))))
Dash's answer is correct and preferred. A more "scorched earth" approach is to call view.endEditing(true). This causes view and all its subviews to resignFirstResponder. If you don't have a reference to the view you'd like to dismiss, this is a hacky but effective solution.
Note that personally I think you should have a reference to the view you'd like to have resign first responder. .endEditing(force: Bool) is a barbaric approach; please don't use it.
I found the best solution included the accepted answer from #Esqarrouth, with some adjustments:
extension UIViewController {
func hideKeyboardWhenTappedAround() {
let tap: UITapGestureRecognizer = UITapGestureRecognizer(target: self, action: "dismissKeyboardView")
tap.cancelsTouchesInView = false
view.addGestureRecognizer(tap)
}
func dismissKeyboardView() {
view.endEditing(true)
}
}
The line tap.cancelsTouchesInView = false was critical: it ensures that the UITapGestureRecognizer does not prevent other elements on the view from receiving user interaction.
The method dismissKeyboard() was changed to the slightly less elegant dismissKeyboardView(). This is because in my project's fairly old codebase, there were numerous times where dismissKeyboard() was already used (I imagine this is not uncommon), causing compiler issues.
Then, as above, this behaviour can be enabled in individual View Controllers:
override func viewDidLoad() {
super.viewDidLoad()
self.hideKeyboardWhenTappedAround()
}
In storyboard:
select the TableView
from the the right-hand-side, select the attribute inspector
in the keyboard section - select the dismiss mode you want
Swift 3:
Extension with Selector as parameter to be able to do additional stuff in the dismiss function and cancelsTouchesInView to prevent distortion with touches on other elements of the view.
extension UIViewController {
func hideKeyboardOnTap(_ selector: Selector) {
let tap: UITapGestureRecognizer = UITapGestureRecognizer(target: self, action: selector)
tap.cancelsTouchesInView = false
view.addGestureRecognizer(tap)
}
}
Usage:
override func viewDidLoad() {
super.viewDidLoad()
self.hideKeyboardOnTap(#selector(self.dismissKeyboard))
}
func dismissKeyboard() {
view.endEditing(true)
// do aditional stuff
}
I have use IQKeyBoardManagerSwift for keyboard. it is easy to use.
just Add pod 'IQKeyboardManagerSwift'
Import IQKeyboardManagerSwift and write code on didFinishLaunchingWithOptions in AppDelegate.
///add this line
IQKeyboardManager.shared.shouldResignOnTouchOutside = true
IQKeyboardManager.shared.enable = true
To expand on Esqarrouth's answer, I always use the following to dismiss the keyboard, especially if the class from which I am dismissing the keyboard does not have a view property and/or is not a subclass of UIView.
UIApplication.shared.keyWindow?.endEditing(true)
And, for convenience, the following extension to the UIApplcation class:
extension UIApplication {
/// Dismisses the keyboard from the key window of the
/// shared application instance.
///
/// - Parameters:
/// - force: specify `true` to force first responder to resign.
open class func endEditing(_ force: Bool = false) {
shared.endEditing(force)
}
/// Dismisses the keyboard from the key window of this
/// application instance.
///
/// - Parameters:
/// - force: specify `true` to force first responder to resign.
open func endEditing(_ force: Bool = false) {
keyWindow?.endEditing(force)
}
}
Use IQKeyboardmanager that will help you solve easy.....
/////////////////////////////////////////
![ how to disable the keyboard..][1]
import UIKit
class ViewController: UIViewController,UITextFieldDelegate {
#IBOutlet weak var username: UITextField!
#IBOutlet weak var password: UITextField!
override func viewDidLoad() {
super.viewDidLoad()
username.delegate = self
password.delegate = self
// 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.
}
func textFieldShouldReturn(textField: UITextField!) -> Bool // called when 'return' key pressed. return NO to ignore.
{
textField.resignFirstResponder()
return true;
}
override func touchesBegan(_: Set<UITouch>, with: UIEvent?) {
username.resignFirstResponder()
password.resignFirstResponder()
self.view.endEditing(true)
}
}
If you use a scroll view, It could be much simpler.
Just select Dismiss interactively in storyboard.
Add this extension to your ViewController :
extension UIViewController {
// Ends editing view when touches to view
open override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
super.touchesBegan(touches, with: event)
self.view.endEditing(true)
}
}
In Swift 4, add #objc:
In the viewDidLoad:
let tap: UITapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(self.dismissKeyboard))
view.addGestureRecognizer(tap)
Function:
#objc func dismissKeyboard() {
view.endEditing(true)
}
import UIKit
class ItemViewController: UIViewController, UITextFieldDelegate {
#IBOutlet weak var nameTextField: UITextField!
override func viewDidLoad() {
super.viewDidLoad()
self.nameTextField.delegate = self
}
// Called when 'return' key pressed. return NO to ignore.
func textFieldShouldReturn(textField: UITextField) -> Bool {
textField.resignFirstResponder()
return true
}
// Called when the user click on the view (outside the UITextField).
override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
self.view.endEditing(true)
}
}
As a novice programmer it can be confusing when people produce more skilled and unnecessary responses...You do not have to do any of the complicated stuff shown above!...
Here is the simplest option...In the case your keyboard appears in response to the textfield - Inside your touch screen function just add the resignFirstResponder function. As shown below - the keyboard will close because the First Responder is released (exiting the Responder chain)...
override func touchesBegan(_: Set<UITouch>, with: UIEvent?){
MyTextField.resignFirstResponder()
}
This one liner resigns Keyboard from all(any) the UITextField in a UIView
self.view.endEditing(true)
Posting as a new answer since my edit of #King-Wizard's answer was rejected.
Make your class a delegate of the UITextField and override touchesBegan.
Swift 4
import UIKit
class ViewController: UIViewController, UITextFieldDelegate {
#IBOutlet var textField: UITextField!
override func viewDidLoad() {
super.viewDidLoad()
textField.delegate = self
}
//Called when 'return' key is pressed. Return false to keep the keyboard visible.
func textFieldShouldReturn(textField: UITextField) -> Bool {
return true
}
// Called when the user clicks on the view (outside of UITextField).
override func touchesBegan(touches: Set<UITouch>, with event: UIEvent?) {
self.view.endEditing(true)
}
}
For Swift3
Register an event recogniser in viewDidLoad
let tap = UITapGestureRecognizer(target: self, action: #selector(hideKeyBoard))
then we need to add the gesture into the view in same viewDidLoad.
self.view.addGestureRecognizer(tap)
Then we need to initialise the registered method
func hideKeyBoard(sender: UITapGestureRecognizer? = nil){
view.endEditing(true)
}
Here is how to dismiss the keyboard by tapping anywhere else, in 2 lines using Swift 5.
(I hate to add another answer, but since this is the top result on Google I will to help rookies like me.)
In your ViewController.swift, find the viewDidLoad() function.
Add these 2 lines:
let tap: UIGestureRecognizer = UITapGestureRecognizer(target: self.view, action: #selector(UIView.endEditing))
view.addGestureRecognizer(tap)
You can also add a tap gesture recognizer to resign the keyboard. :D
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
let recognizer = UITapGestureRecognizer(target: self, action: Selector("handleTap:"))
backgroundView.addGestureRecognizer(recognizer)
}
func handleTap(recognizer: UITapGestureRecognizer) {
textField.resignFirstResponder()
textFieldtwo.resignFirstResponder()
textFieldthree.resignFirstResponder()
println("tappped")
}
Another possibility is to simply add a big button with no content that lies underneath all views you might need to touch.
Give it an action named:
#IBAction func dismissKeyboardButton(sender: AnyObject) {
view.endEditing(true)
}
The problem with a gesture recognizer was for me, that it also caught all touches I wanted to receive by the tableViewCells.
If you have other views that should receive the touch as well you have to set
cancelsTouchesInView = false
Like this:
let elsewhereTap = UITapGestureRecognizer(target: self, action: #selector(dismissKeyboard))
elsewhereTap.cancelsTouchesInView = false
self.view.addGestureRecognizer(elsewhereTap)
override func viewDidLoad() {
super.viewDidLoad()
self.view.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(tap)))
}
func tap(sender: UITapGestureRecognizer){
print("tapped")
view.endEditing(true)
}
Try this,It's Working