How get current keywindow equivalent for multi window SceneDelegate Xcode 11?

Question

I\'m converting my iOS13 app for iPadOS to SceneDelegate (multi window).

How can I get the current UIWindow from the current SceneDelegate?

I know that a can

Answer 1

You'll want to simply iterate through all your windows and find the key window manually.

for (UIWindow *window in [UIApplication sharedApplication].windows) {
    if (window.isKeyWindow) {
        // you have the key window
        break;
    }
}

DO NOT use UISceneActivationStateForegroundActive as the check. That means something different and folks are introducing bugs by using logic to find the first UISceneActivationStateForegroundActive window scene.