Hiding the Keyboard at any Touch in Scroll View-Swift Project - ios

How can I hide the keyboard At any touch on the screen, on a view that has a scroll View.
I added this code into viewDidLoad function:
self.NewAccountScrollView.keyboardDismissMode.UIScrollViewKeyboardDismissMode.OnDrag
And I added the UIScrollViewKeyboardDismissMode protocol!
I got errors?
What should I add more to make this works?
Is this the correct way to do that? or there are a better function to do the job?

try to add this, remove UIScrollViewKeyboardDismissMode
override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
self.view.endEditing(true)
}

Add the tap gesture to NewAccountScrollView in ViewDidLoad Method.
let touch = UITapGestureRecognizer(target: self, action: "singleTapGestureCaptured:")
NewAccountScrollView.addGestureRecognizer(touch)
and hide keyboard after receiving tap.
func singleTapGestureCaptured(gesture: UITapGestureRecognizer){
self.view.endEditing(true)
}

Related

How to capture touch events from a UIScrollView when user is scrolling the screen vertically on iOS with Swift?

I'm new to the iOS development and Swift and I have the following problem:
I would like to capture touch events from the screen. I have no problems with doing this on regular views. Unfortunately, I encountered issues with the UIScrollView component. When user is tapping on the screen, long pressing on the screen or moving finger horizontally, then I'm able to capture touches, but when user is moving finger vertically and activating vertical scrolling at the same time, then I'm not able to capture touches.
I found a few threads on StackOverflow regarding similar issue, but solutions provided there did not resolve my problem.
Structure of my views is as follows:
+- View (top-level view)
|
|
+--- UIScrollView
|
|
+-- other views inside...
Here is my code:
class MyViewController : UIViewController {
#IBOutlet weak var scrollView: UIScrollView!
override func viewDidLoad() {
super.viewDidLoad()
view.addGestureRecognizer(myRecognizer)
}
}
Gesture recognizer is added into the top-level view.
I also have basic custom implementation of the UIGestureRecognizer:
class MyRecognizer: UIGestureRecognizer {
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent) {
super.touchesBegan(touches, with: event)
// handle events...
}
override func touchesMoved(_ touches: Set<UITouch>, with event: UIEvent) {
super.touchesMoved(touches, with: event)
// handle events...
}
override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent) {
super.touchesEnded(touches, with: event)
// handle events...
}
}
What did I try to do to solve this issue?
setting parameter scrollView.canCancelContentTouches = false - didn't help
setting parameter scrollView.isScrollEnabled = false - I was able to capture all touch events, but scrollView stopped working - didn't help
adding gesture recognizer to the scrollView and removing it from the top-level view - didn't help
adding gesture recognizer both to the scrollView and the top-level view - didn't help
setting parameter scrollView.isUserInteractionEnabled = false - I was able to capture all touch events, but scrollView and all UI components stopped working - didn't help
reordering calls in MyRecognizer class: handling events first and then calling method from the upper class super.touches... - didn't help
Right now, I have no idea what else I can do to capture touch events inside the UIScrollView while user is scrolling the screen vertically.
Any suggestions or help are appreciated!
Regards,
Piotr
So UIScrollView has its own set of gestures that have cancelsTouchesInView set to true by default. Try setting this property to false for each gesture in the scrollview like so:
for gesture in scrollView.gestureRecognizers ?? [] {
gesture.cancelsTouchesInView = false
}
EDIT:
Solution to this problem is creating a separate custom UIScrollView and capture touches inside it. It is described in details in this thread: https://stackoverflow.com/a/70594220/10953499 (also linked in the comment).

iOS: Why touchesBegan has some delay in some specific area in UIView

I'm making a custom keyboard and I'm in a really weird situation.
I've noticed that when I catch the event touchesBegan at the rear left (about 20 pixels) of the UIView (inputView), I'll have some delay in here.
Any action I do in touchesBegan will be perform slower than other area.
override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?)
{
self.keypop.hidden = false
}
override func touchesEnded(touches: Set<UITouch>, withEvent event: UIEvent?) {
{
self.keypop.hidden = true
}
And this trouble affects my app's performance.
In this example, I will not see the keypop appears when I touched on the rear left because self.keypop.hidden was delayed in showing up.
I don't know why, or is this an error from iOS 9?
I've been stuck on this trouble for a week.
In my situation I was using touchBegan in a CollectionView and it was delaying touches when I tap
Its worked with me by simply added this code
In Swift,
self.collectionView.delaysContentTouches = false
/*delaysContentTouches applies to all UIScrollView instances.*/
The answer here seems to have fixed the same issue in our keyboard:
UISystemGateGestureRecognizer and delayed taps near bottom of screen
With the following code:
override func viewDidAppear(animated: Bool) {
let window = view.window!
let gr0 = window.gestureRecognizers![0] as UIGestureRecognizer
let gr1 = window.gestureRecognizers![1] as UIGestureRecognizer
gr0.delaysTouchesBegan = false
gr1.delaysTouchesBegan = false
}

Dismiss the Keyboard in Swift via hitTest

My code inside a UIView Class that contains a UITextField named titleInput:
override func hitTest(point: CGPoint, withEvent event: UIEvent?) -> UIView? {
// Code to Dismiss the Keyboard when Pressed Outside Text Field
if !titleInput.pointInside(point, withEvent: event) {
endEditing(true)
}
// Return Original hitTest Result as Usual
return super.hitTest(point, withEvent: event)
}
I am experiencing a strange bug. When I first start the app, everything works as expected, touching outside the titleInput dismisses the keyboard. However, it brakes if I switch to a different app, and than come back to this app. After coming back to the app, clicking on the keyboard also dismisses the keyboard. Makes it difficult to type :)
Any idea why this is happening, and why it ONLY starts to happen after switching away from the app and then coming back to it? Also, is there a better way to do this same thing.
I would recommended doing it this way instead of what you are trying. This will just dismiss the keyboard when the enter/return key is pressed. I realize it is in Obj-C however the method calls are almost identical.
I usually do just this
override func touchesBegan(touches: Set<NSObject>, withEvent event: UIEvent) {
view.endEditing(true)
super.touchesBegan(touches, withEvent: event)
}

Swift - How to dismiss number keyboard after tapping outside of the textfield

How would you dismiss the keyboard from the UITextField when tapping outside of the keyboard. I have tried resignFirstResponder() and it only exits after typing one number. I have also tried textField.inputView = UIView.frame(frame: CGRectZero). I have seen many Obj-C verisons of what I'm asking but I need the Swift equivalent because I have no programming experience in Objective-C
Thank you for your time and patience.
The best way to add a tap gesture recognizer to the view and calling either resignFirstResponder() or self.view.endEditing(true). I prefer endEditing() since resignFirstResponder has to be done for each text field separately unlike endEditing which is done for the view itself.
In viewDidLoad, write the below code:
let tapRecognizer = UITapGestureRecognizer()
tapRecognizer.addTarget(self, action: "didTapView")
self.view.addGestureRecognizer(tapRecognizer)
Now write the didTapView method to dismiss the keyboard:
func didTapView(){
self.view.endEditing(true)
}
Now when you tap outside the keyboard on the main view of the controller, it will call the didTapView method and dismiss the keyboard.
Swift 3.x
The code in viewDidLoad should be:
let tapRecognizer = UITapGestureRecognizer()
tapRecognizer.addTarget(self, action: #selector(ViewController.didTapView))
self.view.addGestureRecognizer(tapRecognizer)
where ViewController should be the name of your view controller.
Thanks
Swift 3 tested and working
// dismiss keyboard on touch outside textfield
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
for txt in self.view.subviews {
if txt.isKind(of: UITextField.self) && txt.isFirstResponder {
txt.resignFirstResponder()
}
}
}
Enjoy
Swift 2.3 tested and working
override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
for txt in self.view.subviews {
if txt.isKindOfClass(UITextField.self) && txt.isFirstResponder() {
txt.resignFirstResponder()
}
}
}
Enjoy
You could also use this method to dismiss the keyboard when pressing 'Return'
func textFieldShouldReturn(textField: UITextField!) -> Bool {
self.view.endEditing(true);
return false;
}
Make sure to set your delegate
If you don't want to define an extra method, there is a slightly simpler way that will also work
let tapRecognizer = UITapGestureRecognizer(target: self, action: "endEditing:")
view.addGestureRecognizer(tapRecognizer)
I found this code on a site and it works great for me!
//FUNCTION TO DISMISS THE 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)
}
#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)
}
Then just call this function in a button action or similar:
dismissMyKeyboard()

Dismiss keyboard on UITextField using Interface Builder

I've seen this, but don't remember what Jedi technique exactly was used through interface builder to dismiss uikeboard when return key is pressed. Anyone knows how to do this?
Please do not post about using UITextFieldDelegate, I know that method, I'm only interested in forcing keyboard to be dismissed on return key being hit without any additional logic or protocol conformation.
Connect the IBAction with "Did End On Exit" event in your xib of your textfield
-(IBAction)textFieldDidEndOnExit:(UITextField *)sender
{
}
override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
if let touch = touches.first{
view.endEditing(true)
}
}

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