swrevealcontroller not working after navigation to homepage

Question

I am new to Swift and I am trying to implement side navigation using SWrevealcontroller

I have a root VC which has a button when click on this button I am navigating to UITabBarController

Here is how my storyboard looks like (below)

and this is how I am navigating on button click

@IBAction func clickButton(_ sender: Any) {
    let storyBoard : UIStoryboard = UIStoryboard(name: "Main", bundle:nil)
    let nextViewController = storyBoard.instantiateViewController(withIdentifier: "Home") as! UITabBarController
    self.present(nextViewController, animated:true, completion:nil)
}

This is my code in FirstViewController

override func viewDidLoad() {
        super.viewDidLoad()
        barButton.target = self.revealViewController()
        barButton.action = #selector(SWRevealViewController.revealToggle(_:))
        self.view.addGestureRecognizer(self.revealViewController().panGestureRecognizer())
    }

But I am getting error at line when I navigate from root VC to UITabBarController

self.view.addGestureRecognizer(self.revealViewController().panGestureRecognizer())

Fatal error: Unexpectedly found nil while unwrapping an Optional value

Can someone help me what is wrong here.

TIA

gcharita · Accepted Answer · 2020-10-27T10:29:22.277

1

You need to present your RevealViewController instead of the UITabBarController.

Add a Storyboard ID to your RevealViewController:

And then present it in your clickButton(_:) function, like this:

let storyBoard: UIStoryboard = UIStoryboard(name: "Main", bundle:nil)
let nextViewController = storyBoard.instantiateViewController(withIdentifier: "RevealViewControllerID")
self.present(nextViewController, animated: true)

edited Oct 27 '20 at 10:29

answered Oct 27 '20 at 09:59

gcharita

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you mean, I have to change my code like this `@IBAction func clickButton(_ sender: Any) { let storyBoard : UIStoryboard = UIStoryboard(name: "Main", bundle:nil) let nextViewController = storyBoard.instantiateViewController(withIdentifier: "Home") as! UITabBarController self.revealViewController()?.setFront(nextViewController, animated: true) }` But after changing this I am not able to navigate. – Rigsby Oct 27 '20 at 10:09
@Rigsby you are not able to navigate from the side menu or from the tabbar? – gcharita Oct 27 '20 at 10:14
I am clicking on that orange button from the first VC, on click of that, I am trying to navigate, clickButton is the method called on orange button click – Rigsby Oct 27 '20 at 10:15
@Rigsby oh, that supposed to present the `TabBarController` along with the side menu? – gcharita Oct 27 '20 at 10:18
@Rigsby sorry, I got it wrong. Then you need to present your `RevealViewController` instead of your `TabBarController`. (the one that is left of your `TabBarController`) Try to add a `Storyboard ID` to your `RevealViewController`, instantiate it and then present it. – gcharita Oct 27 '20 at 10:23

swrevealcontroller not working after navigation to homepage

1 Answers1