通常，我想为不同的设备测试我的iOS-App。由于我没有钱购买所有设备，我使用模拟器这样做：）
对于Apple产品的不同形式因素，代码看起来略有不同。因此，我提出了以下开关案例（见下文......），以便在设备之间以编程方式进行区分。
开关盒非常适用于实际的硬件设备 - 但它仍然是使用模拟器的一个不好的解决方案。
模拟器是它自己的设备！如果我换成具有不同形状因子的模拟器目标，我需要在每个开关案例中取消注释/注释！
是否有更好的解决方案可以更好地照顾模拟器及其形状因子？
switch UIDevice.current.modelName {
// Here there is still the need to uncomment/comment the Devices.Simulator
// for any new form-factor that is being simulated....
// as an example: If simulating an iPhone-8S then the Devices.Simulator needs to be uncommented in the according switch-case...
case Devices.IPhone5, Devices.IPhone5S, Devices.IPhone5C: //, Devices.Simulator:
print("do whatever...")
case Devices.IPhone6, Devices.IPhone6S, Devices.IPhone7, Devices.IPhone8: //, Devices.Simulator:
print("do whatever...")
case Devices.IPhone6Plus, Devices.IPhone6SPlus, Devices.IPhone7Plus, Devices.IPhone8Plus, Devices.Simulator:
print("do whatever...")
case Devices.IPhoneX: //, Devices.Simulator:
print("do whatever...")
default:
print("do whatever...")
}
当然，您的代码库中有以下内容：
public enum Devices: String {
case IPodTouch5
case IPodTouch6
case IPhone4
case IPhone4S
case IPhone5
case IPhone5C
case IPhone5S
case IPhone6
case IPhone6Plus
case IPhone6S
case IPhone6SPlus
case IPhone7
case IPhone7Plus
case IPhoneSE
case IPhone8
case IPhone8Plus
case IPhoneX
case IPad2
case IPad3
case IPad4
case IPad5
case IPadAir
case IPadAir2
case IPadMini
case IPadMini2
case IPadMini3
case IPadMini4
case IPadPro_9_7
case IPadPro_12_9
case IPadPro_12_9_2ndGen
case IPadPro_10_5
case AppleTV_5_3
case AppleTV_6_2
case HomePod
case Simulator
case Other
}
而且......
public extension UIDevice {
public var modelName: Devices {
var systemInfo = utsname()
uname(&systemInfo)
let machineMirror = Mirror(reflecting: systemInfo.machine)
let identifier = machineMirror.children.reduce("") { identifier, element in
guard let value = element.value as? Int8 , value != 0 else { return identifier }
return identifier + String(UnicodeScalar(UInt8(value)))
}
switch identifier {
case "iPod5,1": return Devices.IPodTouch5
case "iPod7,1": return Devices.IPodTouch6
case "iPhone3,1", "iPhone3,2", "iPhone3,3": return Devices.IPhone4
case "iPhone4,1": return Devices.IPhone4S
case "iPhone5,1", "iPhone5,2": return Devices.IPhone5
case "iPhone5,3", "iPhone5,4": return Devices.IPhone5C
case "iPhone6,1", "iPhone6,2": return Devices.IPhone5S
case "iPhone7,2": return Devices.IPhone6
case "iPhone7,1": return Devices.IPhone6Plus
case "iPhone8,1": return Devices.IPhone6S
case "iPhone8,2": return Devices.IPhone6SPlus
case "iPhone9,1", "iPhone9,3": return Devices.IPhone7
case "iPhone9,2", "iPhone9,4": return Devices.IPhone7Plus
case "iPhone8,4": return Devices.IPhoneSE
case "iPhone10,1", "iPhone10,4": return Devices.IPhone8
case "iPhone10,2", "iPhone10,5": return Devices.IPhone8Plus
case "iPhone10,3", "iPhone10,6": return Devices.IPhoneX
case "iPad2,1", "iPad2,2", "iPad2,3", "iPad2,4":return Devices.IPad2
case "iPad3,1", "iPad3,2", "iPad3,3": return Devices.IPad3
case "iPad3,4", "iPad3,5", "iPad3,6": return Devices.IPad4
case "iPad4,1", "iPad4,2", "iPad4,3": return Devices.IPadAir
case "iPad5,3", "iPad5,4": return Devices.IPadAir2
case "iPad6,11", "iPad6,12": return Devices.IPad5
case "iPad2,5", "iPad2,6", "iPad2,7": return Devices.IPadMini
case "iPad4,4", "iPad4,5", "iPad4,6": return Devices.IPadMini2
case "iPad4,7", "iPad4,8", "iPad4,9": return Devices.IPadMini3
case "iPad5,1", "iPad5,2": return Devices.IPadMini4
case "iPad6,3", "iPad6,4": return Devices.IPadPro_9_7
case "iPad6,7", "iPad6,8": return Devices.IPadPro_12_9
case "iPad7,1", "iPad7,2": return Devices.IPadPro_12_9_2ndGen
case "iPad7,3", "iPad7,4": return Devices.IPadPro_10_5
case "AppleTV5,3": return Devices.AppleTV_5_3
case "AppleTV6,2": return Devices.AppleTV_6_2
case "AudioAccessory1,1": return Devices.HomePod
case "i386", "x86_64": return Devices.Simulator
default: return Devices.Other
}
}
}
答案 0 :(得分：0)
我找到了一个更好的解决方案，参见＆＃34;借助Martin R的输入，......＆＃34;
答案 1 :(得分：0)
使用来自Martin R的输入，我现在有了一个很好的解决方案，在对iOS设备的形状因子（无论是硬件还是模拟器）进行区分时，用户无需在代码中输入任何手册。 ！ [当然，新的未来Apple设备被排除在外......]
最重要的是：它也是区分iPhoneSE和iPhone6 / 7/8外形的解决方案！
struct AppConstants {
// feature flags
struct FEATUREFLAG {
static let DEVICE_MODEL_NAME = { () -> Devices in
switch UIDevice.current.modelName {
case Devices.Simulator:
// set featureFlag for different form-factors to be simulated...
return UIDevice.current.simulatorModelName
default:
// set featureFlag for different form-factors on actual device...
return UIDevice.current.modelName
}
}()
}
}
设备扩展中的更改：
public extension UIDevice {
public var modelName: Devices {
var systemInfo = utsname()
uname(&systemInfo)
let machineMirror = Mirror(reflecting: systemInfo.machine)
let identifier = machineMirror.children.reduce("") { identifier, element in
guard let value = element.value as? Int8 , value != 0 else { return identifier }
return identifier + String(UnicodeScalar(UInt8(value)))
}
return self.getDeviceFromIdentifier(identifier: identifier)
}
public var simulatorModelName: Devices {
if let simulatorModelIdentifier = ProcessInfo().environment["SIMULATOR_MODEL_IDENTIFIER"] { return getDeviceFromIdentifier(identifier: simulatorModelIdentifier) }
var sysinfo = utsname()
uname(&sysinfo) // ignore return value
return getDeviceFromIdentifier(identifier: String(bytes: Data(bytes: &sysinfo.machine, count: Int(_SYS_NAMELEN)), encoding: .ascii)!.trimmingCharacters(in: .controlCharacters))
}
private func getDeviceFromIdentifier(identifier: String) -> Devices {
switch identifier {
case "iPod5,1": return Devices.IPodTouch5
case "iPod7,1": return Devices.IPodTouch6
case "iPhone3,1", "iPhone3,2", "iPhone3,3": return Devices.IPhone4
case "iPhone4,1": return Devices.IPhone4S
case "iPhone5,1", "iPhone5,2": return Devices.IPhone5
case "iPhone5,3", "iPhone5,4": return Devices.IPhone5C
case "iPhone6,1", "iPhone6,2": return Devices.IPhone5S
case "iPhone7,2": return Devices.IPhone6
case "iPhone7,1": return Devices.IPhone6Plus
case "iPhone8,1": return Devices.IPhone6S
case "iPhone8,2": return Devices.IPhone6SPlus
case "iPhone9,1", "iPhone9,3": return Devices.IPhone7
case "iPhone9,2", "iPhone9,4": return Devices.IPhone7Plus
case "iPhone8,4": return Devices.IPhoneSE
case "iPhone10,1", "iPhone10,4": return Devices.IPhone8
case "iPhone10,2", "iPhone10,5": return Devices.IPhone8Plus
case "iPhone10,3", "iPhone10,6": return Devices.IPhoneX
case "iPad2,1", "iPad2,2", "iPad2,3", "iPad2,4":return Devices.IPad2
case "iPad3,1", "iPad3,2", "iPad3,3": return Devices.IPad3
case "iPad3,4", "iPad3,5", "iPad3,6": return Devices.IPad4
case "iPad4,1", "iPad4,2", "iPad4,3": return Devices.IPadAir
case "iPad5,3", "iPad5,4": return Devices.IPadAir2
case "iPad6,11", "iPad6,12": return Devices.IPad5
case "iPad2,5", "iPad2,6", "iPad2,7": return Devices.IPadMini
case "iPad4,4", "iPad4,5", "iPad4,6": return Devices.IPadMini2
case "iPad4,7", "iPad4,8", "iPad4,9": return Devices.IPadMini3
case "iPad5,1", "iPad5,2": return Devices.IPadMini4
case "iPad6,3", "iPad6,4": return Devices.IPadPro_9_7
case "iPad6,7", "iPad6,8": return Devices.IPadPro_12_9
case "iPad7,1", "iPad7,2": return Devices.IPadPro_12_9_2ndGen
case "iPad7,3", "iPad7,4": return Devices.IPadPro_10_5
case "AppleTV5,3": return Devices.AppleTV_5_3
case "AppleTV6,2": return Devices.AppleTV_6_2
case "AudioAccessory1,1": return Devices.HomePod
case "i386", "x86_64": return Devices.Simulator
default: return Devices.Other
}
}
}
并且：
public enum Devices: String {
case IPodTouch5
case IPodTouch6
case IPhone4
case IPhone4S
case IPhone5
case IPhone5C
case IPhone5S
case IPhone6
case IPhone6Plus
case IPhone6S
case IPhone6SPlus
case IPhone7
case IPhone7Plus
case IPhoneSE
case IPhone8
case IPhone8Plus
case IPhoneX
case IPad2
case IPad3
case IPad4
case IPad5
case IPadAir
case IPadAir2
case IPadMini
case IPadMini2
case IPadMini3
case IPadMini4
case IPadPro_9_7
case IPadPro_12_9
case IPadPro_12_9_2ndGen
case IPadPro_10_5
case AppleTV_5_3
case AppleTV_6_2
case HomePod
case Simulator
case Other
}