perform segue from programmatically button

Question

I am using swift 4

I have a tab bar controller where I created a programmatically button in the middle of the tab bar. Upon button click I want to perform segue and show the next view. I created the segue from the tabar view to the next view and named it moveToNext.

here is the button

let button = UIButton.init(type: .custom)

override func viewDidLoad() {
    super.viewDidLoad()


    let blue = UIColor(red: 53/255, green: 92/255, blue: 125/255, alpha: 1.0)

    UITabBar.appearance().tintColor = blue

    button.setTitle("+", for: .normal)
    button.titleLabel?.font = .systemFont(ofSize: 32)
    button.setTitleColor(.white, for: .normal)
    button.setTitleColor(.white, for: .highlighted)

    button.backgroundColor = blue
    button.layer.cornerRadius = 32
    button.layer.borderWidth = 1.5
    button.layer.borderColor = blue.cgColor
    //button.layer.borderColor = UIColor.green.cgColor


    button.addTarget(self, action:#selector(self.buttonClicked), for: .touchUpInside)

    self.view.insertSubview(button, aboveSubview: self.tabBar)

    UITabBar.appearance().backgroundImage = UIImage.colorForNavBar(color: .white)
    UITabBar.appearance().shadowImage = UIImage.colorForNavBar(color: blue)

}


@objc func buttonClicked() {
    print("Button Clicked")
    self.performSegue(withIdentifier: "moveToNext", sender: self)

}

I get the following error

'Receiver (<Pac.CustomTabBarViewController: 0x7fc94285be00>) has no segue with identifier 'moveToNext''
*** First throw call stack:

Im fairly new to swift and Xcode, and come from java background.

I think I am performing the segue correctly. Why can't it find the segue and how can I fire it from the button click?

Thanks for taking the time to read this and help me.

I have seen that before making this post. I stated that in the story board I dragged across made a segue and named it. — steller, Oct 20 '18 at 05:48
Can you please share a screenshot of the segue that you have made, with the source and destination view controllers also in the field, with the Attributes inspector at the right also open? — D V, Oct 20 '18 at 08:38

score 1 · Accepted Answer · answered Oct 20 '18 at 04:21

1

Have you established the segue? In IB ⌃-drag from the the source controller (yellow icon) to the destination view controller)?
Have you specified the identifier? Select the segue, press ⌥⌘4 and type moveToNext in the Identifier field.

answered Oct 20 '18 at 04:21

vadian

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Yes, I have done that. I thought I specified that in my post. Thats the reason why I am posting as I have done everything right. – steller Oct 20 '18 at 05:46
There are a few ways to do that but making mistakes anyhow (for example wrong source object of the segue) – vadian Oct 20 '18 at 05:48
I got it. There are like 4 tabor controls. I was using the wrong one – steller Oct 20 '18 at 20:12

perform segue from programmatically button

1 Answers1