iOS- Detect current size classes on viewDidLoad

Question

I\'m working with adaptive Layout on iOS 8 and I want to get exactly what the size classes are on viewDidLoad. Any ideas about that?

Answer 1

You can also do it like that in Swift 5

enum DeviceTraitStatus {
    ///IPAD and others: Width: Regular, Height: Regular
    case wRhR
    ///Any IPHONE Portrait Width: Compact, Height: Regular
    case wChR
    ///IPHONE Plus/Max Landscape Width: Regular, Height: Compact
    case wRhC
    ///IPHONE landscape Width: Compact, Height: Compact
    case wChC

    static var current:DeviceTraitStatus{

        switch (UIScreen.main.traitCollection.horizontalSizeClass, UIScreen.main.traitCollection.verticalSizeClass){

        case (UIUserInterfaceSizeClass.regular, UIUserInterfaceSizeClass.regular):      
            return .wRhR
        case (UIUserInterfaceSizeClass.compact, UIUserInterfaceSizeClass.regular):
            return .wChR
        case (UIUserInterfaceSizeClass.regular, UIUserInterfaceSizeClass.compact):
            return .wRhC
        case (UIUserInterfaceSizeClass.compact, UIUserInterfaceSizeClass.compact):
            return .wChC
        default:
            return .wChR

        }

    }

}

The main advantatge is that can be used from not only a UIViewController class dependant and the static method can go into an i.e. Helper class. So you can do somewhere in your code:

let textSize:CGFloat = DeviceTraitStatus.current == .wRhR ? 18:14