Swift Navigation Bar Item Not Calling Action

Swift Navigation Bar item not calling action

Try something like this

If you have a parameter

 override func viewDidLoad() {
    super.viewDidLoad()

    self.navigationItem.rightBarButtonItem = UIBarButtonItem(title: "ButtonName", style: .done, target: self, action: #selector(YourViewController.yourAction(_:)))

}

Without parameter

 override func viewDidLoad() {
    super.viewDidLoad()

    self.navigationItem.rightBarButtonItem = UIBarButtonItem(title: "ButtonName", style: .done, target: self, action: #selector(YourViewController.yourAction))

}

Button action does not react when .touchUpInside inside a navigation bar

Instead of creating a title view and measuring its size and stuff... there are a load of convenience functions for doing this...

Take a look here... https://www.hackingwithswift.com/example-code/uikit/how-to-add-a-bar-button-to-a-navigation-bar

You can do something like...

navigationItem.leftBarButtonItem = UIBarButtonItem(barButtonSystemItem: .add, target: self, action: #selector(didTapProfile))

There are different ways to create UIBarButtonItem with images and text also...

https://developer.apple.com/documentation/uikit/uibarbuttonitem

UIButton in Navigation Bar Not Recognizing Taps in iOS 11

I found a solution from another developer.

You have to add width and height constraints to the view that wraps all your stuff inside the bar button item. So in my case, the item labeled View needs the constraints.

Here's what to do:

Step 1

Create an @IBOutlet from View to the view controller that has this nav bar.

@IBOutlet weak var myView: UIView!

Step 2

In the containing view controller, inside viewDidLoad() add the constraints:

myView.widthAnchor.constraint(equalToConstant: 63).isActive = true
myView.heightAnchor.constraint(equalToConstant: 33).isActive = true

After that, everything works like it used to.

Right Bar Button item not working

    UIToolbar* toolbar = [[UIToolbar alloc]
                          initWithFrame:CGRectMake(0, 0, 50, 45)];
    [toolbar setBarStyle: UIBarStyleBlackOpaque];
    // create an array for the buttons
    NSMutableArray *buttons = [[NSMutableArray alloc] initWithCapacity:0];

    // create a standard BarButtonItem
    UIBarButtonItem *SettingsBtn = [[UIBarButtonItem alloc]initWithImage:[UIImage imageNamed:@"icon_setting.png"] style:UIBarButtonItemStylePlain
                                   target:self
                                   action:@selector(ActionMethod:)];
    [buttons addObject:SettingsBtn];
    [SettingsBtn release];

    // put the buttons in the toolbar and release them
    [toolbar setItems:buttons animated:NO];
    [buttons release];

    // place the toolbar into the navigation bar
    self.navigationItem.rightBarButtonItem = [[[UIBarButtonItem alloc]
                                              initWithCustomView:toolbar]autorelease];
    [toolbar release];

Execute action when back bar button of UINavigationController is pressed

One option would be implementing your own custom back button. You would need to add the following code to your viewDidLoad method:

    - (void) viewDidLoad {
        [super viewDidLoad];
        self.navigationItem.hidesBackButton = YES;
        UIBarButtonItem *newBackButton = [[UIBarButtonItem alloc] initWithTitle:@"Back" style:UIBarButtonItemStyleBordered target:self action:@selector(back:)];
        self.navigationItem.leftBarButtonItem = newBackButton;
    }

    - (void) back:(UIBarButtonItem *)sender {
        // Perform your custom actions
        // ...
        // Go back to the previous ViewController
        [self.navigationController popViewControllerAnimated:YES];
    }

UPDATE:

Here is the version for Swift:

        override func viewDidLoad {
            super.viewDidLoad()
            self.navigationItem.hidesBackButton = true
            let newBackButton = UIBarButtonItem(title: "Back", style: UIBarButtonItemStyle.Bordered, target: self, action: "back:")
            self.navigationItem.leftBarButtonItem = newBackButton
        }

       @objc func back(sender: UIBarButtonItem) {
            // Perform your custom actions
            // ...
            // Go back to the previous ViewController
            self.navigationController?.popViewControllerAnimated(true)
        }

UPDATE 2:

Here is the version for Swift 3:

        override func viewDidLoad {
            super.viewDidLoad()
            self.navigationItem.hidesBackButton = true
            let newBackButton = UIBarButtonItem(title: "Back", style: UIBarButtonItemStyle.plain, target: self, action: #selector(YourViewController.back(sender:)))
            self.navigationItem.leftBarButtonItem = newBackButton
        }

       @objc func back(sender: UIBarButtonItem) {
            // Perform your custom actions
            // ...
            // Go back to the previous ViewController
            _ = navigationController?.popViewController(animated: true)
        }

Navigation bar button doesn't show in navigationbar

     let rightBarButton = UIBarButtonItem(image: UIImage(named: "test"), style: .plain, target: self, action: #selector(logoutButtonTapped))

    self.navigationController?.navigationBar.topItem?.rightBarButtonItem = rightBarButton

now this is works for me

UIBarButtonItem: target-action not working?

I do not think the target and action of the UIBarButtonItem apply to custom views. Try using a UIButton instead of UIImageView and applying the target and action to the button.

Sample code in Swift:

let button  = UIButton(type: .Custom)
if let image = UIImage(named:"icon-menu.png") {
    button.setImage(image, forState: .Normal)
}
button.frame = CGRectMake(0.0, 0.0, 30.0, 30.0)
button.addTarget(self, action: #selector(MyClass.myMethod), forControlEvents: .TouchUpInside)
let barButton = UIBarButtonItem(customView: button)
navigationItem.leftBarButtonItem = barButton

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