Cannot call value of non-function type "UIViewController?"

Question

I want to make an alert dialog showing up with messages and here's my code in ViewController.swift:

func showErrorAlert(title: String , msg: String){
    let alert = UIAlertController(title: title, message: msg, preferredStyle: .Alert)
    let action = UIAlertAction(title: "OK", style: .Default, handler: nil)
    alert.addAction(action)
    presentedViewController(alert, animated: true, completion: nil)
}

The last line is giving me an error:

"Cannot call value of non-function type "UIViewController?""

TheCodingArt · Accepted Answer · 2016-10-08 16:52:23Z

13

EDIT: For Swift 3, change it to

present(alert, animated: false, completion: nil)

You called the wrong function.

Should be

presentViewController(alert, animated: true, completion: nil)

Instead of presentedViewController(alert, animated: true, completion: nil)

edited Oct 8, 2016 at 16:52

TheCodingArt

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answered Jul 19, 2016 at 3:18

Happiehappie

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2 Comments

eyal Over a year ago

Change to self.present(alert, animated: false, completion: nil) solving this problem too.

Antek Over a year ago

presentViewController gave me the same error, only self.present worked

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