How can I add an alert view

Question

I would like to be able to add an alert view to my login screen that says Incorrect Username/ Password when the info submitted is incorrect. I am using Swift 2. I'm still new to learning code and I am unsure how to add this action.

See the answer in the following thread (`UIAlertControllerStyleAlert`) http://stackoverflow.com/questions/24022479/how-would-i-create-a-uialertview-in-swift — dfrib, Dec 20 '15 at 20:09
Take a look at this, i've written a small repo to do this for you. https://github.com/Swinny1989/iOS-Swift-Popups — Swinny89, Dec 21 '15 at 11:19

score 0 · Accepted Answer · edited May 23 '17 at 12:23

Just use this code to display the alert:

func wrongLogin(input: String) {

    var alert = UIAlertController(title: "Incorrect", message: "The \(input) is wrong. Try again.", preferredStyle: UIAlertControllerStyle.Alert)
    //add a cancel button
        alert.addAction(UIAlertAction(title: "Okay", style: UIAlertActionStyle.Cancel, handler: nil))
    // Show it

        showViewController(alert, sender: self)
    }

Then when calling it just pass in if it's the username or the password.

You can do that like this wrongLogin("password") or wrongLogin("username")

For further info see this answer.

Hope that helps, Julian.

How can I add an alert view

1 Answers1