iOS 12 issues with Xcode10

[southfox]

Hi guys,

awesome repository, we are using this for our application, thanks for sharing this.

I've been trying to build for iOS 12 under Xcode 10 and I'm having the following issues:

• [ ] = #39 which is reported here
• [ ] = Type 'UIWindow.Level' (aka 'CGFloat') has no member 'alert'

 //  BaseWindow.swift
...
       backgroundColor = UIColor.clear
        windowLevel = UIWindow.Level.alert + 1
        
        makeKey()

// CircularProgressView.swift

• [ ] = 'didEnterBackgroundNotification' has been renamed to 'NSNotification.Name.UIApplicationDidEnterBackground'

        NotificationCenter.default.addObserver(self,
                                               selector: #selector(viewDidEnterBackground(_:)),
                                               name: UIApplication.didEnterBackgroundNotification,
                                               object: nil)

• [ ] = 'willEnterForegroundNotification' has been renamed to 'NSNotification.Name.UIApplicationWillEnterForeground'

//  CircularProgressView.swift
        NotificationCenter.default.addObserver(self,
                                               selector: #selector(viewWillEnterForeground(_:)),
                                               name: UIApplication.willEnterForegroundNotification,
                                               object: nil)

Do you want me to send a PR for these issues? Thanks again.

[southfox]

Hi, I've just publish a PR here to fix issue #39 and issue #40, could you review? Thanks.