CODEWITHSUNDEEP
iosswiftbuttonuinavigationcontrolleruibarbuttonitem
Davis Mariotti
Davis Mariotti

Reputation: 605

Adding a custom UIBarButtonItem to a UINavigationBar

I am trying to have a large plus button as a right bar button, the code below worked while it was in a storyboard, but after moving everything to xib files and separate .swift files, this was the only thing that broke.

let button = UIButton(type: .Custom)
button.setTitle("+", forState: .Normal)
button.titleLabel?.font = UIFont.systemFontOfSize(20.0)
button.frame = CGRectMake(0, 0, 100, 40)
self.navigationItem.rightBarButtonItem = UIBarButtonItem(customView: button)
self.navigationItem.rightBarButtonItem = UIBarButtonItem(title: "+", style: .Plain, target: self, action: #selector(GroupNavViewController.onCreate))
self.navigationItem.rightBarButtonItem?.setTitleTextAttributes([NSFontAttributeName:UIFont.systemFontOfSize(40)], forState: .Normal)

The UINavigationController is its own .swift file with no xib file.

I can't figure out why it worked in the storyboard, but now it doesn't.

Ideally, I'd like to have a large plus button (as the normal font size seems a bit too small)

Upvotes: 0

Views: 1031

Answers (2)

ha100
ha100

Reputation: 1592

does work for me. i just got rid of target action so i don't have to implement it. all done in code. no storyboards and no xibs.

AppDelegate.swift

var window: UIWindow?
let viewController = ViewController();

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {

    let navigationController = UINavigationController(rootViewController:viewController)

    self.window = UIWindow(frame: UIScreen.mainScreen().bounds)
    self.window!.backgroundColor = UIColor.whiteColor()
    self.window!.rootViewController = navigationController
    self.window!.makeKeyAndVisible()

    return true
}

ViewController.swift

override func viewDidLoad() {
    super.viewDidLoad()

    let button = UIButton(type: .Custom)
    button.setTitle("+", forState: .Normal)
    button.titleLabel?.font = UIFont.systemFontOfSize(20.0)
    button.frame = CGRectMake(0, 0, 100, 40)

    self.navigationItem.rightBarButtonItem = UIBarButtonItem(customView: button)
    self.navigationItem.rightBarButtonItem = UIBarButtonItem(title: "+", style: .Plain, target: self, action: nil)
    self.navigationItem.rightBarButtonItem?.setTitleTextAttributes([NSFontAttributeName:UIFont.systemFontOfSize(40)], forState: .Normal)

}

Upvotes: 1

Ghulam Ali
Ghulam Ali

Reputation: 1935

The UINavigationController is its own .swift file with no xib file.

Make this Button in the UIViewController class and not in your UINavigationController. So move the same code to your UIViewController.

Upvotes: 1

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