Replacing UIAlertView with UIAlertController

Now that I am taking a short break from OS-X programming to do some iOS development one of the first things that I encounter is the replacement of UIAlertView by UIAlertController.

Not to difficult, and I actually like the new way much better than the old.

This was the old code (still in Obj-C):

    UIAlertView *av = [[[UIAlertView alloc]

        initWithTitle:@"Error"

        message:@"Oopsie daisy"

        delegate:nil

        cancelButtonTitle:@"OK"

        otherButtonTitles:nil] autorelease];

    [av show];

This is the new code (in Swift of course):

    let alert = UIAlertController.init(

        title: "Error",

        message: "Oopsie daisy",

        preferredStyle: UIAlertControllerStyle.Alert)

      

    alert.addAction(UIAlertAction(

        title: "OK",

        style: UIAlertActionStyle.Default,

        handler: nil))

    

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

I specifically like the way action items are added to the alert view. Makes a lot of sense, and we can associate a handler (closure) with each action. It is no longer necessary to demultiplex in a single action handler.

Happy coding...

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