iOS - How can I display an 'AirPlay' popup menu in Swift?

Question

How can I display an AirPlay popup menu in my Swift project? (Many applications like Spotify can display one like below):

Answer 1

After all it seems there is no easy and straightforward way to make a custom button display the system's Airplay menu.

However, @totiG pointer me to an interesting resource and I created a script that creates the standard Volume Control outside of the visible area of the screen a simulates a click on the Airplay button:

func showAirplay() {
    let rect = CGRect(x: -100, y: 0, width: 0, height: 0)
    let airplayVolume = MPVolumeView(frame: rect)
    airplayVolume.showsVolumeSlider = false
    self.view.addSubview(airplayVolume)
    for view: UIView in airplayVolume.subviews {
        if let button = view as? UIButton {
            button.sendActions(for: .touchUpInside)
            break
        }
    }
    airplayVolume.removeFromSuperview()
}

After running this code the following popup menu appears: