super.viewDidLoad()
let tapGesture = UITapGestureRecognizer(target: self, action: Selector("hideKeyboard"))
tapGesture.cancelsTouchesInView = true
scrlView.addGestureRecognizer(tapGesture)
//self.navigationController!.navigationBarHidden = true
scrlView.contentSize = CGSizeMake(UIScreen .mainScreen().bounds.size.width, (regButton.frame.size.height + regButton.frame.origin.y)+20)
// Do any additional setup after loading the view.
}
func hideKeyboard() {
scrlView.endEditing(true)
scrlView .setContentOffset(CGPointMake(0, 0), animated: true)
}
#IBAction func tapped(sender: AnyObject) {
scrlView.endEditing(true)
scrlView .setContentOffset(CGPointMake(0, 0), animated: true)
}
My hideKeyboard function is ok. But now I want to cahnge the position of the textfields above the keyboard when I tap on them.
try this :
func textFieldShouldBeginEditing(textField: UITextField) -> Bool{
scrl.setContentOffset(CGPointMake(0.0, textField.center.y-120), animated: true)
}
And your func hideKeyboard() should be remain same
Hope it will helpful for u
You can use IQkeyboardmanger third party library for your project, here is the link for that, https://github.com/hackiftekhar/IQKeyboardManager
Related
is how my screen looks like..
Now my code for dismissing the keyboard when the use of searchbar is over:
override func viewDidLoad() {
super.viewDidLoad()
let tap = UITapGestureRecognizer(target: self, action: #selector(handleTap))
view.addGestureRecognizer(tap)
}
#objc func handleTap() {
searchbar.resignFirstResponder()
}
By this my keyboard is getting dismissed but whenever using this, the tableview DidSelectRowAt is no more working (Though there is no error or warning). I am confused that what is the problem exactly. Please help! Thanks is advance..
Set cancelsTouchesInView to false, for detailed explanation: link
extension UIViewController {
func hideKeyboard() {
let tap: UITapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(UIViewController.dismissKeyboard))
tap.cancelsTouchesInView = false
view.addGestureRecognizer(tap)
}
#objc
func dismissKeyboard() {
view.endEditing(true)
}
}
Usage:
call hideKeyboard() in the viewDidLoad of the controller.
I'm using this code to hide the keyboard when the user taps anywhere on the screen outside of the TextView:
override func viewDidLoad() {
super.viewDidLoad()
//Looks for single or multiple taps.
let tap = UITapGestureRecognizer(target: self, action: #selector(UIInputViewController.dismissKeyboard))
tap.delegate = self
//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)
}
public func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer, shouldReceive touch: UITouch) -> Bool {
if touch.view is UIButton {
return false
}
return true
}
The problem is I have a UIButton in this view as well - when I tap on the button, the button's gesture recognizer function is not called. Instead, dismissKeyboard is called. I already tried the suggestion of using tap.cancelsTouchesInView = false as well as the shouldReceive method, but neither of them work - in the shouldReceive method, when I tap on the button, the class of touch.view is UIView.
Does anybody know how to allow the user to hide the keyboard when clicking anywhere on screen, but also allow button action handlers to execute?
I fixed this using the following code:
I detect the location of the user's touch
I check if the touch is in the frame of each of the two buttons in my UIView
If this is true, I manually call the button handler and return false from the method
public func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer, shouldReceive touch: UITouch) -> Bool {
if let view = self.view as? MyViewControllersView {
let location = touch.location(in: self.view)
if view.saveButton.frame.contains(location) {
view.saveHit()
return false
} else if view.scanButton.frame.contains(location) {
view.scanHit()
return false
}
}
return true
}
it works for me, please check out
//MARK:- View Lyfe cycle
override func viewDidLoad() {
super.viewDidLoad()
IQKeyboardManager.shared().isEnableAutoToolbar = false
// IQKeyboardManager.shared().disabledToolbarClasses = self
IQKeyboardManager.shared().isEnabled = false
self.keyboardWillShowAndHide()
initializeHideKeyboard()
}
//MARK:- KayBoard Handling...
//MARK:- Init Hide KeyBoard...
func initializeHideKeyboard(){
//Declare a Tap Gesture Recognizer which will trigger our dismissMyKeyboard() function
let tap: UITapGestureRecognizer = UITapGestureRecognizer(
target: self,
action: #selector(dismissMyKeyboard))
//Add this tap gesture recognizer to the parent view
view.addGestureRecognizer(tap)
}
//MARK:- Dismissing Keyboard...
#objc func dismissMyKeyboard(){
//endEditing causes the view (or one of its embedded text fields) to resign the first responder status.
//In short- Dismiss the active keyboard.
view.endEditing(true)
}
//MARK:- Kayboard Hide and Show...
func keyboardWillShowAndHide(){
NotificationCenter.default.addObserver(
self,
selector: #selector(keyboardWillShow),
name: UIResponder.keyboardWillShowNotification,
object: nil
)
NotificationCenter.default.addObserver(
self,
selector: #selector(keyboarddidHide),
name: UIResponder.keyboardWillHideNotification,
object: nil
)
}
//MARK:- KeyBoard Will Show
#objc func keyboardWillShow(_ notification: Notification) {
self.arrConversationList.count
if let keyboardFrame: NSValue = notification.userInfo?[UIResponder.keyboardFrameEndUserInfoKey] as? NSValue {
let keyboardRectangle = keyboardFrame.cgRectValue
let keyboardHeight = keyboardRectangle.height
self.ChatBottomConstraint.constant = keyboardHeight - self.bottomLayoutGuide.length
DispatchQueue.main.asyncAfter(deadline: .now()+0.1, execute: {
if self.arrConversationList.count > 0 {
let indexPath = NSIndexPath(row: self.arrConversationList.count-1, section: 0)
self.ConversationTblref.scrollToRow(at: indexPath as IndexPath, at: .bottom, animated: true)
}
})
self.tableviewbottomconstraintref.constant = 0
ConversationTblref.reloadData()
}
}
//MARK:- KeyBoard Will Hide
#objc func keyboarddidHide(_ notification: Notification) {
self.tableviewbottomconstraintref.constant = 0
self.ChatBottomConstraint.constant = 0
ConversationTblref.reloadData()
}
//MARK:- View Disappear for handleing kayboard...
override func viewWillDisappear(_ animated: Bool) {
super.viewWillDisappear(true)
IQKeyboardManager.shared().isEnableAutoToolbar = true
IQKeyboardManager.shared().isEnabled = true
NotificationCenter.default.removeObserver(self, name: UIResponder.keyboardWillShowNotification, object: nil)
NotificationCenter.default.removeObserver(self, name: UIResponder.keyboardWillHideNotification, object: nil)
}
override func viewDidDisappear(_ animated: Bool) {
}
When I am tapping on UIView but Gesture is not working.
override func viewDidLoad() {
super.viewDidLoad()
let tap = UITapGestureRecognizer(target: self, action: #selector(self.handleTap(_:)))
viewForSHadow.isUserInteractionEnabled = true
viewForSHadow.addGestureRecognizer(tap)
// Do any additional setup after loading the view.
}
func handleTap(_sender: UITapGestureRecognizer) {
print("---------View Tapped--------")
viewForSHadow.isHidden = true
viewForAlert.isHidden = true
}
I just want to perform this action on UIView tap.
You may check in the debug view hierarchy if anything with alpha = 0 is overlapping your viewForSHadow.
You have to implement as follows:
class ViewController: UIViewController, UIGestureRecognizerDelegate {
...
override func viewDidLoad() {
super.viewDidLoad()
let tap = UITapGestureRecognizer(target: self, action: #selector(handleTap(_sender:)))
viewForSHadow.isUserInteractionEnabled = true
viewForSHadow.addGestureRecognizer(tap)
}
#objc func handleTap(_sender: UITapGestureRecognizer) {
print("---------View Tapped--------")
viewForSHadow.isHidden = true
viewForAlert.isHidden = true
}
...
}
Your code is more than enough to have working UIGestureRecognizer, you should check some other stuff like, is there something else that can consume the user interaction. And also to check if you use
isUserInteractionEnabled = false
to some parent view of viewForSHadow.
You have to use UIGestureRecognizerDelegate
let tapRecognizer = UITapGestureRecognizer(target: self, action: #selector(handleDismiss))
tapRecognizer.delegate = self
blackView.addGestureRecognizer(tapRecognizer)
func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer, shouldReceive touch: UITouch) -> Bool {
return true
}
#objc func handleDismiss() {
print("handleDismiss")
}
Reference
Don't forget to set the UIGestureRecognizerDelegate in your class
You need to mention numberOfTapsRequired property of the UITapGestureRecognizer.
override func viewDidLoad() {
super.viewDidLoad()
let tap = UITapGestureRecognizer(target: self, action: #selector(handleTapGesture(_sender:)))
tap.numberOfTapsRequired = 1
viewForSHadow.isUserInteractionEnabled = true
viewForSHadow.addGestureRecognizer(tap)
}
#objc func handleTapGesture(_sender: UITapGestureRecognizer) {
print("---------View Tapped--------")
// Why are you hiding this view **viewForSHadow**
viewForSHadow.isHidden = true
viewForAlert.isHidden = true
}
Also, make sure you are not doing viewForSHadow.isUserInteractionEnabled = false anywhere in the code.
First of all you code doesn't compile. The handleTap(_:) signature must be like:
#objc func handleTap(_ sender: UITapGestureRecognizer) {
print("---------View Tapped--------")
}
Secondly, you need to first try with the minimal code in a separate project. And by minimal code I mean what you've added in the question.
class ViewController: UIViewController {
#IBOutlet weak var viewForSHadow: UIView!
override func viewDidLoad() {
super.viewDidLoad()
let tap = UITapGestureRecognizer(target: self, action: #selector(self.handleTap(_:)))
viewForSHadow.addGestureRecognizer(tap)
}
#objc func handleTap(_ sender: UITapGestureRecognizer) {
print("---------View Tapped--------")
}
}
Try with just the above code and see if you can get it working. The above code is working well at my end without any delegate or numberOfTaps.
I'm trying to call an action when I tap on a UIImage at the time of its animation.
I've seen similar questions, but I could not apply these solutions to my case.
Please help.
xcode 9.2
swift 4
import UIKit
class MyCalssViewController: UIViewController {
#IBOutlet weak var myImageView: UIImageView!
override func viewDidLoad() {
super.viewDidLoad()
// action by tap
let gestureSwift2AndHigher = UITapGestureRecognizer(target: self, action: #selector (self.actionUITapGestureRecognizer))
myImageView.addGestureRecognizer(gestureSwift2AndHigher)
}
// action by tap
#objc func actionUITapGestureRecognizer (){
print("actionUITapGestureRecognizer - works!") // !!! THIS DOES NOT WORK !!!
}
// hide UIImage before appear
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
myImageView.center.y += view.bounds.height
}
// show UIImage after appear with animation
override func viewDidAppear(_ animated: Bool) {
super.viewDidAppear(animated)
UIView.animate(withDuration: 10, animations: {
self.myImageView.center.y -= self.view.bounds.height
})
}
}
You just missed a line, enabling user interaction on the view.
override func viewDidLoad() {
super.viewDidLoad()
// action by tap
let gestureSwift2AndHigher = UITapGestureRecognizer(target: self, action: #selector (self.actionUITapGestureRecognizer))
myImageView.isUserInteractionEnabled = true
myImageView.addGestureRecognizer(gestureSwift2AndHigher)
}
let tapGesture = UITapGestureRecognizer(target: self, action: #selector(self.clickedImageView(_:)))
myImageview.isUserInteractionEnabled = true
myImageview.addGestureRecognizer(tapGesture)
// MARK: - Gesture Recognizer action
func clickedImageView(_ sender: UITapGestureRecognizer) {
// Write your action here.
}
You need to pass in the option .allowUserInteraction like this:
UIView.animate(withDuration: 10, delay: 0, options: .allowUserInteraction, animations: {
...
})
I tried calling tabBarController!.tabBar.hidden = true in viewDidLoad() and it hides the TabBar. However, I tried to set tap gesture and hide the bar on Tap. The parent viewController that has ScrollView inside it with subview (that is connected with IBOutlet as myView)
override func viewDidLoad() {
super.viewDidLoad()
let tap = UITapGestureRecognizer(target: self, action: Selector("handleTap:"))
myView.addGestureRecognizer(tap)
}
func handleTap(sender: UITapGestureRecognizer? = nil) {
print("A") // logs successfully
if TabBarHidden == false {
print("B") // logs successfully
//I tried:
tabBarController?.tabBar.hidden = true
// I also tried
tabBarController?.tabBar.alpha = 0
tabBarController?.tabBar.frame.origin.x += 50
hidesBottomBarWhenPushed = true
} else {
...
TabBarHidden = false
}
}
hidden does work when I call it in viewDidLoad as I said, but not if I call in tap gesture function. What may be the problem? What am I missing?
this code totally works for me:
class ViewController: UIViewController {
var tabBarHidden: Bool = false {
didSet {
tabBarController?.tabBar.hidden = tabBarHidden
}
}
override func viewDidLoad() {
super.viewDidLoad()
let tapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(tapGestureRecognized(_:)))
view.addGestureRecognizer(tapGestureRecognizer)
}
func tapGestureRecognized(sender: UITapGestureRecognizer) {
tabBarHidden = !tabBarHidden
}
}