¿cómo configurar programáticamente la acción de barButtonItem en swift 3?
Esto es lo que usé anteriormente,
var barButtonItem = UIBarButtonItem(image: backImgs, style: UIBarButtonItemStyle.plain, target: self, action: Selector("menuButtonTapped:"))
Pero hay algunos cambios de sintaxis para Swift 3. Gracias de antemano.
10 answers
Ex: -
navigationItem.rightBarButtonItem = UIBarButtonItem(title: "Add", style: .plain, target: self, action: #selector(addTapped))
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2016-09-29 11:10:31
Resuma el método más utilizado en Swift 3 para agregar acción a un barButton.
-
Barbutton con texto
navigationItem.rightBarButtonItem = UIBarButtonItem(title: "Add", style: .plain, target: self, action: #selector(addTapped))
-
BarButton con tu propia imagen
navigationItem.rightBarButtonItem = UIBarButtonItem(image: UIImage(named:"add"), style: .plain, target: self, action: #selector(addTapped))
-
BarButton con imagen del sistema
navigationItem.rightBarButtonItem = UIBarButtonItem(barButtonSystemItem: .add, target: self, action: #selector(addTapped))
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2016-11-10 14:52:49
Si alguien está usando customView
:
barButtonItem.customView?.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(onBarButtonItemClicked)))
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2017-04-25 16:00:43
Una línea de código en Swift 3 para iOS 10.1:
navigationController?.navigationBar.topItem?.rightBarButtonItem = UIBarButtonItem(title: "Add", style: .plain, target: self, action: nil)
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2017-03-23 10:12:24
Solo necesita cambiar su sintaxis selector
a partir de Swift 3 necesita especificar el primer nombre de parámetro del método en su llamada a la función, así que cambie su selector de esta manera.
#selector(menuButtonTapped(sender:))
Y su método debe ser así.
func menuButtonTapped(sender: UIBarButtonItem) {
}
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2016-09-29 11:18:46
let barButtonItem = UIBarButtonItem(image: UIImage(named: "backImgs"),
style: .plain,
target: self,
action: #selector(menuButtonTapped))
// Adding button to navigation bar (rightBarButtonItem or leftBarButtonItem)
self.navigationItem.rightBarButtonItem = barButtonItem
// Private action
@objc fileprivate func menuButtonTapped() { // body method here }
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2016-09-29 11:21:53
Cree una extensión para el elemento barbutton.
extension UINavigationItem {
func addSettingButtonOnRight(){
let button = UIButton(type: .Custom)
button.setTitle("setting", forState: .Normal)
button.titleLabel?.font = UIFont.systemFontOfSize(15.0)
button.layer.cornerRadius = 5
button.backgroundColor = UIColor.grayColor()
button.frame = CGRect(x: 0, y: 0, width: 100, height: 25)
button.addTarget(self, action: #selector(gotSettingPage), forControlEvents: UIControlEvents.TouchUpInside)
let barButton = UIBarButtonItem(customView: button)
self.rightBarButtonItem = barButton
}
func gotSettingPage(){
}
}
Y llámalo desde viewDidLoad ()
self.navigationItem.addSettingButtonOnRight()
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2017-06-16 06:21:18
En Swift 3 , puedes añadir UIBarButtonItem así,
let addButton = UIBarButtonItem(image:UIImage(named:"your_icon_name"), style:.plain, target:self, action:#selector(YourControllerName.buttonAction(_:)))
addButton.tintColor = UIColor.white
self.navigationItem.rightBarButtonItem = addButton
Y manejar la acción del botón así,
func buttonAction(_ sender: UIBarButtonItem) {
}
Espero que ayude.
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2017-11-14 08:34:57
Para Swift 4 añadir viewDidLoad
:
navigationItem.rightBarButtonItem = UIBarButtonItem(
barButtonSystemItem: UIBarButtonSystemItem.add,
target: self,
action: #selector(addTransaction)
)
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2018-06-19 17:05:05
Hacer un UIBarButtonItem:
let rightButton: UIBarButtonItem = UIBarButtonItem(title: "Done", style: UIBarButtonItemStyle.done, target: self, action: #selector(LocationViewController.doneButtonClicked(_:)))
Añadir a navigationItem:
self.navigationItem.rightBarButtonItem = rightButton
Función asociada:
func doneButtonClicked(_ button:UIBarButtonItem!){
print("Done clicked")
}
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2017-04-10 05:00:38