Call different method depending on Bool without if-statement in Swift

Question

Is it possible to call one or another method depending a Bool value? I wish to do this:

var isLocked: Bool
{
    didSet
    {
        // This is not Swift but indicates what I'm looking for.
        self.activityIndicator.(isLocked ? startAnimating() : stopAnimating())
    }
}

I'm looking to do this using existing Swift 2 (or 3) language features; without class extensions.

Possibly a duplicate, but couldn't find.

Answer 1

How about:

didSet {
    isLocked ? self.activityIndicator.startAnimating() :
        self.activityIndicator.stopAnimating()
}