I am trying to build my first iOS app with swift 5.
I have a textfield where the user should type a value like 15,00
this is my result at the moment:
I searched for a solution to dismiss the keyboard.
Option 1: dismiss keyboard after user type a format like xx,xx
Option 2: a "Done" button im keyboard with decimal pad style
But I don't know, how I can realize any of this option.
Need help ! :)
You can add this code to your didLoad
var toolbar = UIToolbar()
toolbar.sizeToFit()
var flexibleSpace = UIBarButtonItem(barButtonSystemItem: UIBarButtonItem.SystemItem.flexibleSpace, target: nil, action: nil)
var doneButton = UIBarButtonItem(barButtonSystemItem: UIBarButtonItem.SystemItem.done, target: self, action: #selector(yourFunc))
toolbar.setItems([flexibleSpace, doneButton], animated: true)
yourTextField.inputAccessoryView = toolbar
When click done button you can do whatever you want but we want to do dismiss keyboard
#objc func doneClicked(){
searchBar.endEditing(true)
}
Related
I have a navigation bar with two buttons as the right bar button items and a text field in the title view. If I tap the text field, a search screen pops up and I can enter texts into the text field. The texts in the text field would set the "resultText" variable in my code below. The button items, including filterItem and mapItem, are well connected with #IBOutlet.
I would like to hide the right bar button items when the text field is not empty. With the code shown below, it works fine initially when I enter texts into the text field. However, when I delete the texts in the text field and then returns from the pop-up, the app crashes because the button items are found nil. I do not understand why it is nil. Am I missing something here?
if !resultText.isEmpty {
navigationItem.rightBarButtonItem = nil
} else {
navigationItem.setRightBarButtonItems([filterItem, mapItem], animated: false)
}
You are adding and removing buttons from the navigation bar, it must be removing reference from view. Try adding it using code -
func addBarButtonItems() {
let filterItemBarButton = UIBarButtonItem(title: "filterItem", style: .plain, target: self, action: #selector(filterItemTapped))
let mapItemBarButton = UIBarButtonItem(title: "mapItem", style: .plain, target: self, action: #selector(mapItemTapped))
navigationItem.rightBarButtonItems = [filterItemTapped, mapItemTapped]
}
func removeBarButtonItems() {
navigationItem.rightBarButtonItems = nil
}
#objc private func filterItemTapped() {
//code
}
#objc private func mapItemTapped() {
//code
}
Call these methods correctly in textField delegate methods.
I've got some fairly simple code, and am trying to figure out why the uibarbuttonitem isn't triggering the selector:
TableView's viewDidLoad method:
override func viewDidLoad() {
super.viewDidLoad()
// Uncomment the following line to preserve selection between presentations
self.clearsSelectionOnViewWillAppear = false
// this line adds a button to top right
let addNewChecklistItemButton = UIBarButtonItem(barButtonSystemItem: .add,
target: nil,
action: #selector(self.addNewChecklistItemToDataModel))
self.navigationItem.rightBarButtonItem = addNewChecklistItemButton
}
Method called:
#objc func addNewChecklistItemToDataModel() {
print("adding new item...")
<...>
}
The button is being added (was not visible before I put this code in) and when I press it the button click animates but my console doesn't show the printed text.
After reading UIBarButtonItem selector not working, I'm wondering if the fact that my UITableViewController is embedded in both a UITabViewController and UINavigationViewController is effecting the button's scope? If not, anyone see something I'm missing?
Target shouldn't be nil
let addNewChecklistItemButton = UIBarButtonItem(barButtonSystemItem: .add,
target: self,
action: #selector(self.addNewChecklistItemToDataModel))
In the app I'm making I have a side menu that I used SWRevealViewController template to make. I made my own animated button to be the hamburger menu button so when its pressed the side menu will open. The problem is I can't figure out how to connect my animated button to the SWRevealViewController.
Here's the button code I made.
Animated Button
self.button = HamburgerButton(frame: CGRectMake(0, 0, 30, 30))
self.button.addTarget(self, action: #selector(home.toggle(_:)), forControlEvents:.TouchUpInside)
let refreshButton = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.Refresh,
target: self, action: #selector(home.buttonMethod))
navigationItem.leftBarButtonItem = button
and heres the button that was used for the SWRevealViewController
override func viewDidLoad() {
super.viewDidLoad()
if revealViewController() != nil {
menuButton.target = revealViewController()
menuButton.action = #selector(SWRevealViewController.revealToggle(_:))
view.addGestureRecognizer(self.revealViewController().panGestureRecognizer())
}
}
Ive done a lot of research but just can't find out how to do it. I need the button I made, which is the first code, to be the one to access the SWRevealViewController and to open and close the side menu rather then the button, which is the second code, that came with the SWRevealViewController template. Any help will be Awesome!!
This is how I do it. You can adapt this to your needs.
let singleTap = UITapGestureRecognizer(target: self, action: #selector(tapDetected))
singleTap.numberOfTapsRequired = 1
sideMenuButton.userInteractionEnabled = true
sideMenuButton.addGestureRecognizer(singleTap)
func tapDetected() {
self.revealViewController().revealToggle(self)
}
Id like to remove an icon and add text to BarButtomItem, but im not sure how to do it. here is my currrent code:
let logoutButton = UIBarButtonItem(barButtonSystemItem: .Action, target: self, action: #selector(SettingsViewController.logout))
self.navigationItem.setRightBarButtonItem(logoutButton, animated: false)
I thought i could just do UIBarButtonItem(text: "sign out", ... but I guess that doesn't work.
you can connect your UIBarButtonItem from the UI.
#IBOutlet weak var logoutButton: UIBarButtonItem!
It should look like this when you connect it.
Setting of that button can look like this
And finally put this line to ViewDidLoad func:
//Logout button
logoutButton.title = "Sign out" //This is the button title
:) It should work.
This is an old post but in case somebody else's need this, you can actually create a bar button item with just text:
let logoutButton:UIBarButtonItem = UIBarButtonItem(title:"Sign out",
style:UIBarButtonItemStyle.plain,
target:self,
action:#selector(SettingsViewController.logout))
self.navigationItem.setRightBarButtonItem(logoutButton, animated:false)
How do you create UIBarButtonItem as a plus symbol? I tried giving it the title "+", but I would like it to look more like the plus symbol you would normally create if you used storyboard. Which doesn't have a background or an underline.
It's one of the provided bar button system items.
let addBarButton = UIBarButtonItem(barButtonSystemItem: .add, target: YOUR_TARGET, action: YOUR_SELECTOR)
I think this is what you are looking for:
Swift 4.2 Example
Here is how you do it:
let addBarButton = UIBarButtonItem(barButtonSystemItem: .add, target: self, action: #selector(addUser))
override func viewDidLoad() {
super.viewDidLoad()
self.navigationItem.rightBarButtonItem = addBarButton
}
#objc private func addUser() {
// Some code, e.g.
let storyboard = UIStoryboard(name: "CreateNewUser", bundle: nil)
let vc = storyboard.instantiateViewController(withIdentifier: "createUser") as! CreateUserVC
self.navigationController?.pushViewController(vc, animated: true)
}
IMPORTANT NOTE: There is a little problem though which many users have pointed out and took me many hours to figure out as well (for iOS 11, 12) that you must put the self.navigationItem.rightBarButtonItem = addBarButton inside the viewDidLoad function otherwise the button's selector won't work. This has something to do, as per other users on StackOverflow, with tap gestures. In my code, one of my view controllers have two buttons assigned outside of viewDidLoad function but there is also use a function to hide the keyboard, which probably causes the buttons to work fine. However, in view controllers of two other projects where I don't show or hide keyboard, the #selector for programatically set navigation bar buttons don't work unless they are defined within viewDidLoad function as in the example above. I hope this tip will save you tons of time in case you face this problem.
Swift 3.0
let addBarButton = UIBarButtonItem(barButtonSystemItem: .add, target: self, action: #selector(ViewController.openSearch))