Distinguish different iPhones based on the device screen height.

UIDevice+Extensions.swift

//
//  UIDevice+Extensions.swift
//  tenbet
//
//  Created by Emil Atanasov on 28.10.19.
//  Copyright © 2019. All rights reserved.
//

//based on https://stackoverflow.com/questions/46192280/detect-if-the-device-is-iphone-x/47067296

///Extension that can be used to distinguish different types of iPhones
///iPad devices are treated as one - generic Pad
public extension UIDevice {

    enum DeviceType {
        case iPad
        case iPhone_unknown
        case iPhone_5_5S_5C_SE
        case iPhone_6_6S_7_8
        case iPhone_6_6S_7_8_PLUS
        case iPhone_X_Xs_11_Pro
        case iPhone_Xs_Max_11_Pro_Max
        case iPhone_Xr_11
    }
    
    /// Returns true if the harware has a home button
    var hasHomeButton: Bool {
        switch deviceType {
        case .iPhone_X_Xs_11_Pro, .iPhone_Xr_11, .iPhone_Xs_Max_11_Pro_Max:
            return false
        default:
            return true
        }
    }
    
    /// Return the type device type, based on screen height
    var deviceType: DeviceType {
        if userInterfaceIdiom == .phone {
            switch UIScreen.main.nativeBounds.height {
            case 1136:
                return .iPhone_5_5S_5C_SE
            case 1334:
                return .iPhone_6_6S_7_8
            case 1920, 2208:
                return .iPhone_6_6S_7_8_PLUS
            case 2436:
                return .iPhone_X_Xs_11_Pro
            case 2688:
                return .iPhone_Xs_Max_11_Pro_Max
            case 1792:
                return .iPhone_Xr_11
            default:
                return .iPhone_unknown
            }
        }
        return .iPad
   }
}