How to reliably detect if an external keyboard is connected on iOS 9?

Question

Previous to iOS 9, the most reliable method of determining whether an external keyboard is connected was to listen for UIKeyboardWillShowNotification and make a

Answer 1

iOS 14 SDK finally brings public API for that: GCKeyboard. To check if external keyboard is connected:

let isKeyboardConnected = GCKeyboard.coalescedKeyboard != nil

Notes:

• import GameController
• you might need to enclose it in if #available(iOS 14.0, *)