Attempt to present OTPViewController on UIAlertController whose view is not in window

Question

I wrote this code so that the viewcontroller changes from loginscreenviewcontroller to otpviewcontroller.

function createAlert() {
    let alertController = UIAlertController(title: nil, message: "Please wait\n\n", preferredStyle: .alert)
    let spinnerIndicator = UIActivityIndicatorView(activityIndicatorStyle: .whiteLarge)
    spinnerIndicator.center = CGPoint(x: 135.0, y: 65.5)
    spinnerIndicator.color = UIColor.black
    spinnerIndicator.startAnimating()
    self.present(alertController, animated: true, completion: nil)
    Alamofire.request(".....").responseData { response in
       switch response.result {
           case .success:
               self.dismiss(animated: true, completion: nil)
               self.performSegue(withIdentifier: "OTPSegue", sender: self)
       }
    }
}

but it gives me an error

Attempt to present <Junkart.OTPViewController: 0x79769c80> on <UIAlertController: 0x79b5fe00> whose view is not in the window hierarchy!

alert controller does close but there is no change in view controller.

Please help.

UPADTE 2 Ok. So I am able to change to the other viewController but the alert view goes to the top before the new view controller animates and takes the whole screen.

hi this answer could help you http://stackoverflow.com/questions/28451295/push-view-controller-after-dismissing-presented-view-controller — Muzahid, May 08 '17 at 12:29

Senthil Kumar Rajendran · Answer 1 · 2017-05-08T12:44:15.623

0

You dismiss the current view controller before present new view controller. That's wrong. Remove following line instead self.dismiss(animated: true, completion: nil)

edited May 08 '17 at 12:44

answered May 08 '17 at 12:25

Senthil Kumar Rajendran

53
4

what should I do then? please elaborate – Gaurav May 08 '17 at 12:27
remove following line: self.dismiss(animated: true, completion: nil) – Senthil Kumar Rajendran May 08 '17 at 12:33

Luca Davanzo · Accepted Answer · 2017-05-08T12:38:24.303

0

Error is pretty exhaustive.

You need to dismiss alert view and then perform segue with the new view controller:

alertController.dismiss(animated: true, completion: {
    self.performSegue(withIdentifier: "OTPSegue", sender: self)
})

edited May 08 '17 at 12:38

answered May 08 '17 at 12:35

Luca Davanzo

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Attempt to present OTPViewController on UIAlertController whose view is not in window

2 Answers2