Detect if app is running in Slide Over or Split View mode in iOS 9

Question

In iOS 9, is it possible to detect when an app is running in iOS 9\'s Slide Over or Split View mode?

I\'ve tried reading through Apple\'s documentation on iOS 9 mult

Answer 1

I made an edit to @Michael Voccola solution which fixed the problem for orientation

I used this way in my situation to detect all iPad split screen state and handling layout Just call determineLayout() to get current layoutStyle

private func getScreenSize() -> CGRect { 
     let size = UIScreen.main.bounds
     return size
}

private func getApplicationSize() -> CGRect {
    let size = UIApplication.shared.windows[0].bounds
    return size
}

enum LayoutStyle: String {
    case iPadFullscreen = "iPad Full Screen"
    case iPadHalfScreen = "iPad 1/2 Screen"
    case iPadTwoThirdScreeen = "iPad 2/3 Screen"
    case iPadOneThirdScreen = "iPad 1/3 Screen"
    case iPhoneFullScreen = "iPhone"
}

func determineLayout() -> LayoutStyle {

    if UIDevice.current.userInterfaceIdiom == .phone {
        return .iPhoneFullScreen
    }

    let screenSize = getScreenSize().size
    let appSize = getApplicationSize().size
    let screenWidth = screenSize.width
    let appWidth = appSize.width

    if screenSize == appSize {
//       full screen
         return .iPadFullscreen
    }

    let persent = CGFloat(appWidth / screenWidth) * 100.0

    if persent <= 55.0 && persent >= 45.0 {
//      The view persent between 45-55 that's mean it's half screen
        return .iPadHalfScreen
    } else if persent > 55.0 {
//      more than 55% that's mean it's 2/3
        return .iPadTwoThirdScreeen
    } else {
//      less than 45% it's 1/3
        return .iPadOneThirdScreen
    }
}