Display mode

Display.swift

import UIKit

public enum DisplayType {
    case unknown
    case iphone4
    case iphone5
    case iphone6
    case iphone6plus
    static let iphone7 = iphone6
    static let iphone7plus = iphone6plus
    case iphoneX
}

public final class Display {
    class var width:CGFloat { return UIScreen.main.bounds.size.width }
    class var height:CGFloat { return UIScreen.main.bounds.size.height }
    class var maxLength:CGFloat { return max(width, height) }
    class var minLength:CGFloat { return min(width, height) }
    class var zoomed:Bool { return UIScreen.main.nativeScale >= UIScreen.main.scale }
    class var retina:Bool { return UIScreen.main.scale >= 2.0 }
    class var phone:Bool { return UIDevice.current.userInterfaceIdiom == .phone }
    class var pad:Bool { return UIDevice.current.userInterfaceIdiom == .pad }
    class var carplay:Bool { return UIDevice.current.userInterfaceIdiom == .carPlay }
    class var tv:Bool { return UIDevice.current.userInterfaceIdiom == .tv }
    class var typeIsLike:DisplayType {
        if phone && maxLength < 568 {
            return .iphone4
        }
        else if phone && maxLength == 568 {
            return .iphone5
        }
        else if phone && maxLength == 667 {
            return .iphone6
        }
        else if phone && maxLength == 736 {
            return .iphone6plus
        }
        else if phone && maxLength == 812 {
            return .iphoneX
        }
        return .unknown
    }
}

Example.swift

print("width: \(Display.width)")
print("height: \(Display.height)")
print("maxLength: \(Display.maxLength)")
print("minLength: \(Display.minLength)")
print("zoomed: \(Display.zoomed)")
print("retina: \(Display.retina)")
print("phone: \(Display.phone)")
print("pad: \(Display.pad)")
print("carplay: \(Display.carplay)")
print("tv: \(Display.tv)")
print("Type is like: \(Display.typeIsLike)")

Results.txt

// iphone 6s without launch screen 
width: 320.0
height: 480.0
maxLength: 480.0
minLength: 320.0
zoomed: false
retina: true
phone: true
pad: false
carplay: false
tv: false
Type is like: iphone4


// iphone SE portrait
width: 320.0
height: 568.0
maxLength: 568.0
minLength: 320.0
zoomed: true
retina: true
phone: true
pad: false
carplay: false
tv: false
Type is like: iphone5

// iphone 7 plus portrait
width: 414.0
height: 736.0
maxLength: 736.0
minLength: 414.0
zoomed: true
retina: true
phone: true
pad: false
carplay: false
tv: false
Type is like: iphone6plus

// iphone 7 plus landscape
width: 736.0
height: 414.0
maxLength: 736.0
minLength: 414.0
zoomed: true
retina: true
phone: true
pad: false
carplay: false
tv: false
Type is like: iphone6plus

// iphone x
width: 375.0
height: 812.0
maxLength: 812.0
minLength: 375.0
zoomed: true
retina: true
phone: true
pad: false
carplay: false
tv: false
Type is like: iphoneX