Question

我使用此方法获取设备型号名称：

+ (NSString *) machineModel
{
    const char *name = "hw.model";
#if TARGET_OS_IPHONE
    // .model on iOS returns internal model name (e.g. "N51AP") when we'd prefer to see the model identifier here ("iPhone6,1")
    name = "hw.machine";
#endif

    int error = 0;
    size_t length = 0;
    error = sysctlbyname(name, NULL, &length, NULL, 0);

    if (error != 0) {
        return nil;
    }

    char *p = malloc(sizeof(char) * length);
    if (p) {
        error = sysctlbyname(name, p, &length, NULL, 0);
    }

    if (error != 0) {
        free(p);
        return nil;
    }

    NSString *machinemodel = [NSString stringWithFormat:@"%s", p];        
    free(p);        
    return machinemodel;
}

但是，当我在数千台设备上运行此代码时，我在数据库中获得以下选项：

"iPhone7;1"
"iPhone8,1"
"iPhone7;2"
"iPhone"
"iPhone9;3"
"iPhone7;1"
"iPhone8,1"
"iPhone8,1"
"iPhone7,2"
"iPhone7;2"
"iPhone9;1"
"iPhone7;2"
...

问题

有时候我有,分隔符，有时;，有时我看不到号码："iPhone"

为什么会这样？

我希望这可以从Android设备（5K不同的制造商），但为什么iOS只有Apple是所有者

Answer 1

我相信您通过直接访问模型名称来解决代码问题。可能在某些iOS版本或iOS架构上，它的工作方式不同。

我建议您使用一些更高级别的库，例如DeviceKit或Device - 它对我来说效果非常好，并且始终能够提供正确的结果。

如果你不想直接使用它们，至少你可以看到它们如何工作并自己实现相同的逻辑。

Answer 2

@snaggs你可以添加这个方法，它会给你正确的输出。我在第一行方法中调用了你的方法。

- (NSString *)platformString
{
    NSString *platform = [self machineModel];
    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 (GSM)";
    if ([platform isEqualToString:@"iPhone3,3"])    return @"iPhone 4 (CDMA)";
    if ([platform isEqualToString:@"iPhone4,1"])    return @"iPhone 4S";
    if ([platform isEqualToString:@"iPhone5,1"])    return @"iPhone 5 (GSM)";
    if ([platform isEqualToString:@"iPhone5,2"])    return @"iPhone 5 (GSM+CDMA)";
    if ([platform isEqualToString:@"iPhone5,3"])    return @"iPhone 5c (GSM)";
    if ([platform isEqualToString:@"iPhone5,4"])    return @"iPhone 5c (GSM+CDMA)";
    if ([platform isEqualToString:@"iPhone6,1"])    return @"iPhone 5s (GSM)";
    if ([platform isEqualToString:@"iPhone6,2"])    return @"iPhone 5s (GSM+CDMA)";
    if ([platform isEqualToString:@"iPhone7,1"])    return @"iPhone 6 GSM";
    if ([platform isEqualToString:@"iPhone7,2"])    return @"iPhone 6 GSM+CDMA";
    if ([platform isEqualToString:@"iPhone8,1"])    return @"iPhone 6+ GSM";
    if ([platform isEqualToString:@"iPhone8,2"])    return @"iPhone 6+ Global";
    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:@"iPod5,1"])      return @"iPod Touch 5G";
    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:@"iPad2,4"])      return @"iPad 2 (WiFi)";
    if ([platform isEqualToString:@"iPad2,5"])      return @"iPad Mini (WiFi)";
    if ([platform isEqualToString:@"iPad2,6"])      return @"iPad Mini (GSM)";
    if ([platform isEqualToString:@"iPad2,7"])      return @"iPad Mini (GSM+CDMA)";
    if ([platform isEqualToString:@"iPad3,1"])      return @"iPad 3 (WiFi)";
    if ([platform isEqualToString:@"iPad3,2"])      return @"iPad 3 (GSM+CDMA)";
    if ([platform isEqualToString:@"iPad3,3"])      return @"iPad 3 (GSM)";
    if ([platform isEqualToString:@"iPad3,4"])      return @"iPad 4 (WiFi)";
    if ([platform isEqualToString:@"iPad3,5"])      return @"iPad 4 (GSM)";
    if ([platform isEqualToString:@"iPad3,6"])      return @"iPad 4 (GSM+CDMA)";
    if ([platform isEqualToString:@"iPad4,1"])      return @"iPad Air (WiFi)";
    if ([platform isEqualToString:@"iPad4,2"])      return @"iPad Air (GSM)";
    if ([platform isEqualToString:@"iPad4,4"])      return @"iPad Mini Retina (WiFi)";
    if ([platform isEqualToString:@"iPad4,5"])      return @"iPad Mini Retina (GSM)";
    if ([platform isEqualToString:@"i386"])         return @"Simulator";
    if ([platform isEqualToString:@"x86_64"])       return @"Simulator";
    return platform;
}

Answer 3

有了这些知识，我们终于可以获得“硬件模型”的价值了使用sysctl获取OS X的HW_MODEL和iOS的HW_MACHINE 系统

在iOS中，您应该使用hw.machine而不是hw.model

size_t size;
int nR = sysctlbyname("hw.machine", NULL, &size, NULL, 0);
char *machine = (char *)malloc(size);
nR = sysctlbyname("hw.machine", machine, &size, NULL, 0);
NSString *deviceString = [NSString stringWithCString:machine encoding:NSUTF8StringEncoding];
free(machine);

More info

iOS设备返回不同格式的设备型号，为什么？

问题

3 个答案: