关于C#：如何在swift中以编程方式检查iphone 4和iphone 5的屏幕尺寸

how to check screen size of iphone 4 and iphone 5 programmatically in swift

我要把目标C换成斯威夫特。有人对如何转移它有什么建议吗？

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if(UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone)
{
CGSize result = [[UIScreen mainScreen] bounds].size;
if(result.height == 480)
{
// iPhone Classic
}
if(result.height == 568)
{
// iPhone 5
}
}

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XCode 9？SWIFT 4

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extension UIDevice {
var iPhoneX: Bool {
return UIScreen.main.nativeBounds.height == 2436
}
var iPhone: Bool {
return UIDevice.current.userInterfaceIdiom == .phone
}
enum ScreenType: String {
case iPhones_4_4S ="iPhone 4 or iPhone 4S"
case iPhones_5_5s_5c_SE ="iPhone 5, iPhone 5s, iPhone 5c or iPhone SE"
case iPhones_6_6s_7_8 ="iPhone 6, iPhone 6S, iPhone 7 or iPhone 8"
case iPhones_6Plus_6sPlus_7Plus_8Plus ="iPhone 6 Plus, iPhone 6S Plus, iPhone 7 Plus or iPhone 8 Plus"
case iPhones_X_XS ="iPhone X or iPhone XS"
case iPhone_XR ="iPhone XR"
case iPhone_XSMax ="iPhone XS Max"
case unknown
}
var screenType: ScreenType {
switch UIScreen.main.nativeBounds.height {
case 960:
return .iPhones_4_4S
case 1136:
return .iPhones_5_5s_5c_SE
case 1334:
return .iPhones_6_6s_7_8
case 1792:
return .iPhone_XR
case 1920, 2208:
return .iPhones_6Plus_6sPlus_7Plus_8Plus
case 2436:
return .iPhones_X_XS
case 2688:
return .iPhone_XSMax
default:
return .unknown
}
}
}

ZZU1

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Alternative solution with uiscreen extension(IOS 8 and later)：

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extension UIScreen {

enum SizeType: CGFloat {
case Unknown = 0.0
case iPhone4 = 960.0
case iPhone5 = 1136.0
case iPhone6 = 1334.0
case iPhone6Plus = 1920.0
}

var sizeType: SizeType {
let height = nativeBounds.height
guard let sizeType = SizeType(rawValue: height) else { return .Unknown }
return sizeType
}
}

惯例：

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if UIScreen.mainScreen().sizeType == .iPhone4 {
// Make specific layout for small devices.
}

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if UIDevice().userInterfaceIdiom == .Phone {
switch UIScreen.mainScreen().bounds.size.height{
case 480:
print("iPhone 4S")
case 568:
print("iPhone 5")
default:
print("other models")
}
}

Uiscreen.Mainscreen().Bounds.size.hight will provide the hight of the device.使用这个值，我们可以检查特定的iphone设备。

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用iphone xs，iphone xs最大值

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extension UIDevice {
var iPhoneX: Bool {
return UIScreen.main.nativeBounds.height == 2436
}
var iPhone: Bool {
return UIDevice.current.userInterfaceIdiom == .phone
}
enum ScreenType: String {
case iPhone4_4S ="iPhone 4 or iPhone 4S"
case iPhones_5_5s_5c_SE ="iPhone 5, iPhone 5s, iPhone 5c or iPhone SE"
case iPhones_6_6s_7_8 ="iPhone 6, iPhone 6S, iPhone 7 or iPhone 8"
case iPhones_6Plus_6sPlus_7Plus_8Plus ="iPhone 6 Plus, iPhone 6S Plus, iPhone 7 Plus or iPhone 8 Plus"
case iPhoneXR ="iPhone XR"
case iPhoneX_iPhoneXS ="iPhone X,iPhoneXS"
case iPhoneXSMax ="iPhoneXS Max"
case unknown
}
var screenType: ScreenType {
switch UIScreen.main.nativeBounds.height {
case 960:
return .iPhone4_4S
case 1136:
return .iPhones_5_5s_5c_SE
case 1334:
return .iPhones_6_6s_7_8
case 1792:
return .iPhoneXR
case 1920, 2208:
return .iPhones_6Plus_6sPlus_7Plus_8Plus
case 2436:
return .iPhoneX_iPhoneXS
case 2688:
return .iPhoneXSMax
default:
return .unknown
}
}
}

Print("screentype："，uidevice.current.screentype.rawvalue)

Just to add to https://stackoverflow.com/A/27776671/1766242

允许你写作

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if UIDevice.isScreen35inch() {
// Do something to fit small screen
} else {
// do something else for larger screens
}

See below

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extension UIDevice {
var iPhone: Bool {
return UIDevice().userInterfaceIdiom == .Phone
}
enum ScreenType: String {
case iPhone4
case iPhone5
case iPhone6
case iPhone6Plus
case Unknown
}
var screenType: ScreenType? {
guard iPhone else { return nil }
switch UIScreen.mainScreen().nativeBounds.height {
case 960:
return .iPhone4
case 1136:
return .iPhone5
case 1334:
return .iPhone6
case 2208:
return .iPhone6Plus
default:
return nil
}
}

// helper funcs
static func isScreen35inch() -> Bool {
return UIDevice().screenType == .iPhone4
}

func isScreen4inch() -> Bool {
return UIDevice().screenType == .iPhone5
}

func isScreen47inch() -> Bool {
return UIDevice().screenType == .iPhone6
}

func isScreen55inch() -> Bool {
return UIDevice().screenType == .iPhone6Plus
}}

这是我用XCode 10+Swift 4+IPhone XS/XS/XS/XR做的

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struct ScreenSize {
static let SCREEN_WIDTH = UIScreen.main.bounds.size.width
static let SCREEN_HEIGHT = UIScreen.main.bounds.size.height
static let SCREEN_MAX_LENGTH = max(ScreenSize.SCREEN_WIDTH, ScreenSize.SCREEN_HEIGHT)
static let SCREEN_MIN_LENGTH = min(ScreenSize.SCREEN_WIDTH, ScreenSize.SCREEN_HEIGHT)
}

struct DeviceType {
static let IS_IPHONE_4_OR_LESS = UIDevice.current.userInterfaceIdiom == .phone && ScreenSize.SCREEN_MAX_LENGTH < 568.0
static let IS_IPHONE_5 = UIDevice.current.userInterfaceIdiom == .phone && ScreenSize.SCREEN_MAX_LENGTH == 568.0
static let IS_IPHONE_6 = UIDevice.current.userInterfaceIdiom == .phone && ScreenSize.SCREEN_MAX_LENGTH == 667.0
static let IS_IPHONE_6P = UIDevice.current.userInterfaceIdiom == .phone && ScreenSize.SCREEN_MAX_LENGTH == 736.0
static let IS_IPHONE_X = UIDevice.current.userInterfaceIdiom == .phone && ScreenSize.SCREEN_MAX_LENGTH == 812
static let IS_IPAD = UIDevice.current.userInterfaceIdiom == .pad && ScreenSize.SCREEN_MAX_LENGTH == 1024.0
static let IS_IPAD_PRO = UIDevice.current.userInterfaceIdiom == .pad && ScreenSize.SCREEN_MAX_LENGTH == 1366.0
static let IS_IPHONE_XSMAX = UIDevice.current.userInterfaceIdiom == .phone && ScreenSize.SCREEN_MAX_LENGTH == 2688
static let IS_IPHONE_XR = UIDevice.current.userInterfaceIdiom == .phone && ScreenSize.SCREEN_MAX_LENGTH == 1792
}

另外，在建议的方式中，一种方法是沿着同样的方式使用结构。

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struct ScreenSize
{
static let SCREEN_WIDTH = UIScreen.main.bounds.size.width
static let SCREEN_HEIGHT = UIScreen.main.bounds.size.height
static let SCREEN_MAX_LENGTH = max(ScreenSize.SCREEN_WIDTH, ScreenSize.SCREEN_HEIGHT)
static let SCREEN_MIN_LENGTH = min(ScreenSize.SCREEN_WIDTH, ScreenSize.SCREEN_HEIGHT)
}

struct DeviceType
{
static let IS_IPHONE_4_OR_LESS = UIDevice.current.userInterfaceIdiom == .phone && ScreenSize.SCREEN_MAX_LENGTH < 568.0
static let IS_IPHONE_5 = UIDevice.current.userInterfaceIdiom == .phone && ScreenSize.SCREEN_MAX_LENGTH == 568.0
static let IS_IPHONE_6 = UIDevice.current.userInterfaceIdiom == .phone && ScreenSize.SCREEN_MAX_LENGTH == 667.0
static let IS_IPHONE_6P = UIDevice.current.userInterfaceIdiom == .phone && ScreenSize.SCREEN_MAX_LENGTH == 736.0
static let IS_IPAD = UIDevice.current.userInterfaceIdiom == .pad && ScreenSize.SCREEN_MAX_LENGTH == 1024.0
static let IS_IPAD_PRO = UIDevice.current.userInterfaceIdiom == .pad && ScreenSize.SCREEN_MAX_LENGTH == 1366.0
}

让我知道它是否有帮助。

李奥为我固定了答案。这里是整个Xamarin.ios devs：)

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public static class ScreenHelper
{
public enum ScreenSizeType
{
iPhone4_4s,
iPhone5_5s_5c_SE,
iPhone6_6s_7_8,
iPhone6plus_6sPlus_7Plus_8Plus,
iPhoneX,
unknown
}

public static bool IsIphone
{
get
{
return UIDevice.CurrentDevice.UserInterfaceIdiom == UIUserInterfaceIdiom.Phone;
}
}

public static bool IsNarrowScreen
{
get
{
return UIScreen.MainScreen.NativeBounds.Width <= 640;
}
}

public static ScreenSizeType CurrentScreenType
{
get
{
switch ((int)UIScreen.MainScreen.NativeBounds.Height)
{
case 960:
return ScreenSizeType.iPhone4_4s;
case 1136:
return ScreenSizeType.iPhone5_5s_5c_SE;
case 1334:
return ScreenSizeType.iPhone6_6s_7_8;
case 1920:
case 2208:
return ScreenSizeType.iPhone6plus_6sPlus_7Plus_8Plus;
case 2436:
return ScreenSizeType.iPhoneX;
default:
return ScreenSizeType.unknown;
}
}
}
}

Try to use this:

创建UiviewController+Extension.swift file：and put into below code：

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enum DeviceTypeModel{
case iphoneX
case iphone8Plus
case iphone8
case iphoneSE //SE is the like iphone 5 and iphone 5s
case iphone4s
}

extension UIViewController{
func runOnTheDeviceType(_ completion: (DeviceTypeModel) -> Void) {
if UIDevice().userInterfaceIdiom == .phone{
switch UIScreen.main.nativeBounds.height{
case 2436:
completion(.iphoneX)
case 1920:
completion(.iphone8Plus)
case 1334:
completion(.iphone8)
case 1136:
completion(.iphoneSE)
default:
completion(.iphone4s)
}
}
}
}

并在你的视图控制器中使用它。

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class ChatViewController: UIViewController{
override func viewDidLoad() {
super.viewDidLoad()
runOnTheDeviceType { devices in
switch devices{
case .iphoneSE:
//do something
case .iphone4s:
//do something
default:
//do something
}
}
}
}

如果你想做的话，你可以添加更多的例子。享受它。

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你也可以试试下面的代码：

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if (IS_IPHONE4) {
imgHeight.constant = 150;
}
else if (IS_IPAD) {
imgHeight.constant = 300;
}
else if (IS_IPHONE5) {
imgHeight.constant = 170;
}
else {
imgHeight.constant = 200;
}

谢谢

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