How to detect fullscreen mode using AVPlayerViewController in Swift?

Question

I am trying to detect when the AVPlayerViewController is in full-screen mode, but I\'m having a difficult time achieving this. I\'d like to know when the user s

Answer 1

Updated for Swift 3:

Add an observer for the playerViewController object:

playerViewController(self, forKeyPath: "videoBounds", options: NSKeyValueObservingOptions.new, context: nil)

override func observeValue(forKeyPath keyPath: String?, of object: Any?, change: [NSKeyValueChangeKey : Any]?, context: UnsafeMutableRawPointer?)
{
    if keyPath == "videoBounds"
    {
        if let rect = change?[.newKey] as? NSValue
        {
            if let newrect = rect.cgRectValue as CGRect?
            {
                // 200 is height of playerViewController in normal screen mode
                if newrect.size.height <= 200
                {
                    print("normal screen")
                }
                else
                {
                    print("full screen")
                }
            }
        }
    }
}