以编程方式标识iphone设备

我想确定安装应用程序的设备。 这意味着，当我在iphone上安装应用程序时，它应该告诉我设备信息。 信息是这样的，设备是2G、3G或3GS

目前我只获得设备的型号、名称、系统名称和系统版本

我想知道这个设备是2G、3G还是3GS

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请帮帮我。

在过去的Mac编程史上，这一直被认为是一个错误的问题

你真正需要知道的是一条更具体的信息。针对代码中的每个行为决策提出一个更为狭义的问题。例如，您可能需要知道设备是否具有GPS。另一个问题是，您不应该根据OpenGL堆栈是什么模型设备来决定如何使用它，而应该根据提供的OpenGL功能/扩展信息来决定

您现在获得的信息来自UIDevice，这是一个设计糟糕的API。它以最糟糕的格式（字符串）为您提供了完全错误的信息

Erica Sadun有一个对UIDevice的扩展，可能很有用。它只是sysctlbyname（“hw.machine，…）的包装器。每个模型的此属性都不同

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但是，这通常是一个错误的问题。

这是我在我的应用程序中使用的，效果很好

NSString *deviceType = [UIDevice currentDevice].model;
NSLog(@"DEVICE TYPE %@", deviceType);

struct utsname systemInfo;
uname(&systemInfo);

  - (NSString *) platformString{
NSString *platform =  [NSString stringWithCString:systemInfo.machine
                                     encoding:NSUTF8StringEncoding];    
NSLog(@"type ...%@", platform);


if ([platform isEqualToString:@"iPhone1,1"])    return @"iPhone 1G";
if ([platform isEqualToString:@"iPhone1,2"])    return @"iPhone 3G";
if ([platform isEqualToString:@"iPhone2,1"])    return @"iPhone 3GS";
if ([platform isEqualToString:@"iPhone3,1"])    return @"iPhone 4";
if ([platform isEqualToString:@"iPod1,1"])      return @"iPod Touch 1G";
if ([platform isEqualToString:@"iPod2,1"])      return @"iPod Touch 2G";
if ([platform isEqualToString:@"iPod3,1"])      return @"iPod Touch 3G";
if ([platform isEqualToString:@"iPod4,1"])      return @"iPod Touch 4G";
if ([platform isEqualToString:@"iPad1,1"])      return @"iPad";
if ([platform isEqualToString:@"iPad2,1"])      return @"iPad 2 (WiFi)";
if ([platform isEqualToString:@"iPad2,2"])      return @"iPad 2 (GSM)";
if ([platform isEqualToString:@"iPad2,3"])      return @"iPad 2 (CDMA)";
if ([platform isEqualToString:@"i386"])         return @"Simulator";
return platform;
}

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希望它有帮助

我做了这个，它甚至会显示型号：

struct utsname systemInfo;
    uname(&systemInfo);

    NSString *modelName = [NSString stringWithCString:systemInfo.machine
                                             encoding:NSUTF8StringEncoding];

    NSString *machinename = [NSString stringWithCString:systemInfo.machine
                                               encoding:NSUTF8StringEncoding];


    NSString *modelnumber = @"Not listed";

    //Simulator
    if([modelName isEqualToString:@"i386"] || [modelName isEqualToString:@"x86_64"]) {
        modelName = @"iPhone Simulator";
        modelnumber = @"XXXXX";

    }

    //iPhone
    else if([modelName isEqualToString:@"iPhone1,1"]) {
        modelName = @"iPhone";
        modelnumber = @"A1203";
    }
    else if([modelName isEqualToString:@"iPhone1,2"]) {
        modelName = @"iPhone 3G";
        modelnumber = @"A1241/A1324";
    }
    else if([modelName isEqualToString:@"iPhone2,1"]) {
        modelName = @"iPhone 3GS";
        modelnumber = @"A1303/A1325";
    }
    else if([modelName isEqualToString:@"iPhone3,1"]) {
        modelName = @"iPhone 4 (GSM)";
        modelnumber = @"A1332";
    }
    else if([modelName isEqualToString:@"iPhone3,2"]) {
        modelName = @"iPhone 4 GSM Rev A";
        modelnumber = @"Not listed";
    }
    else if([modelName isEqualToString:@"iPhone3,3"]) {
        modelName = @"iPhone 4 (CDMA)";
        modelnumber = @"A1349";
    }
    else if([modelName isEqualToString:@"iPhone4,1"]) {
        modelName = @"iPhone 4S";
        modelnumber = @"A1387/A1431";
    }
    else if([modelName isEqualToString:@"iPhone5,1"]) {
        modelName = @"iPhone 5 (GSM)";
        modelnumber = @"A1428";
    }
    else if([modelName isEqualToString:@"iPhone5,2"]) {
        modelName = @"iPhone 5 (GSM+CDMA)";
        modelnumber = @"A1429/A1442";
    }

    //iPod touch
    else if([modelName isEqualToString:@"iPod1,1"]) {
        modelName = @"iPod touch 1G";
        modelnumber = @"A1213";
    }
    else if([modelName isEqualToString:@"iPod2,1"]) {
        modelName = @"iPod touch 2G";
        modelnumber = @"A1288";
    }
    else if([modelName isEqualToString:@"iPod3,1"]) {
        modelName = @"iPod touch 3G";
        modelnumber = @"A1318";
    }
    else if([modelName isEqualToString:@"iPod4,1"]) {
        modelName = @"iPod touch 4G";
        modelnumber = @"A1367";
    }
    else if([modelName isEqualToString:@"iPod5,1"]) {
        modelName = @"iPod touch 5G";
        modelnumber = @"A1421";
    }

    //iPad
    else if([modelName isEqualToString:@"iPad1,1"]) {
        modelName = @"iPad 1G";
        modelnumber = @"A1219/A1337";
    }
    else if([modelName isEqualToString:@"iPad2,1"]) {
        modelName = @"iPad 2 (WiFi)";
        modelnumber = @"A1395";
    }
    else if([modelName isEqualToString:@"iPad2,2"]) {
        modelName = @"iPad 2 (GSM)";
        modelnumber = @"A1396";
    }
    else if([modelName isEqualToString:@"iPad2,3"]) {
        modelName = @"iPad 2 (CDMA)";
        modelnumber = @"A1397";
    }
    else if([modelName isEqualToString:@"iPad2,4"]) {
        modelName = @"iPad 2 (WiFi + Rev A)";
        modelnumber = @"A1395";
    }
    else if([modelName isEqualToString:@"iPad3,1"]) {
        modelName = @"iPad 3 (WiFi)";
        modelnumber = @"A1416";
    }
    else if([modelName isEqualToString:@"iPad3,2"]) {
        modelName = @"iPad 3 (GSM+CDMA)";
        modelnumber = @"A1403";
    }
    else if([modelName isEqualToString:@"iPad3,3"]) {
        modelName = @"iPad 3 (GSM)";
        modelnumber = @"A1430";
    }
    else if([modelName isEqualToString:@"iPad3,4"]) {
        modelName = @"iPad 4 (WiFi)";
        modelnumber = @"A1458";
    }
    else if([modelName isEqualToString:@"iPad3,5"]) {
        modelName = @"iPad 4 (GSM)";
        modelnumber = @"A1459";
    }
    else if([modelName isEqualToString:@"iPad3,6"]) {
        modelName = @"iPad 4 (GSM+CDMA)";
        modelnumber = @"A1460";
    }

    //iPad mini
    else if([modelName isEqualToString:@"iPad2,5"]) {
        modelName = @"iPad mini (WiFi)";
        modelnumber = @"A1432";
    }
    else if([modelName isEqualToString:@"iPad2,6"]) {
        modelName = @"iPad mini (GSM)";
        modelnumber = @"A1454";
    }
    else if([modelName isEqualToString:@"iPad2,7"]) {
        modelName = @"iPad mini (GSM+CDMA)";
        modelnumber = @"A1455";
    }

    //Apple TV, just for funn:)
    else if([modelName isEqualToString:@"AppleTV2,1"]) {
        modelName = @"Apple TV 2G";
        modelnumber = @"A1378";
    }
    else if([modelName isEqualToString:@"AppleTV3,1"]) {
        modelName = @"Apple TV 3G";
        modelnumber = @"A1427";
    }
    else if([modelName isEqualToString:@"AppleTV3,2"]) {
        modelName = @"Apple TV 3G (Rev A)";
        modelnumber = @"A1469";
    }

    NSLog(@"Device model: %@/ %@ /%@",modelName,machinename,modelnumber);

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同意。除非你正在开发一款应用程序，该应用程序只列出公司车队中所有不同的iPhone，并且你需要能够对它们进行排序，否则你可能不需要知道它是3G还是3Gs，只需要知道它是否支持你想访问的功能。使用AvailabilityMacros查看设备是否支持您所需的功能。嘿，兄弟！这帮了我的忙！非常感谢！：）