I was wondering if it's possible to determine what kind of iPhone (for example) the currentdevice is? I know it's possible to get the model through NSString *deviceType = [[UIDevice currentDevice] model]; which will just return whether I have an "iPhone" or an "iPod", BUT I was wondering if it's possible to detect/know if I have an iPhone 3GS vs. and iPhone 4 vs. an iPhone 4S (in actuality, all I really want to do is determine if I have a 3G or not, because I'm doing fairly graphics intensive stuff).

所以,请告诉我,谢谢!


当前回答

#import <sys/utsname.h>

#define HARDWARE @{@"i386": @"Simulator",@"x86_64": @"Simulator",@"iPod1,1": @"iPod Touch",@"iPod2,1": @"iPod Touch 2nd Generation",@"iPod3,1": @"iPod Touch 3rd Generation",@"iPod4,1": @"iPod Touch 4th Generation",@"iPhone1,1": @"iPhone",@"iPhone1,2": @"iPhone 3G",@"iPhone2,1": @"iPhone 3GS",@"iPhone3,1": @"iPhone 4",@"iPhone4,1": @"iPhone 4S",@"iPhone5,1": @"iPhone 5",@"iPhone5,2": @"iPhone 5",@"iPhone5,3": @"iPhone 5c",@"iPhone5,4": @"iPhone 5c",@"iPhone6,1": @"iPhone 5s",@"iPhone6,2": @"iPhone 5s",@"iPad1,1": @"iPad",@"iPad2,1": @"iPad 2",@"iPad3,1": @"iPad 3rd Generation ",@"iPad3,4": @"iPad 4th Generation ",@"iPad2,5": @"iPad Mini",@"iPad4,4": @"iPad Mini 2nd Generation - Wifi",@"iPad4,5": @"iPad Mini 2nd Generation - Cellular",@"iPad4,1": @"iPad Air 5th Generation - Wifi",@"iPad4,2": @"iPad Air 5th Generation - Cellular"}

@interface ViewController ()
@end

@implementation ViewController

- (void)viewDidLoad
{
    [super viewDidLoad];
    struct utsname systemInfo;
    uname(&systemInfo);
    NSLog(@"hardware: %@",[HARDWARE objectForKey:[NSString stringWithCString: systemInfo.machine encoding:NSUTF8StringEncoding]]);
}

其他回答

虽然这个问题在2012年就被提出了,但苹果仍然没有给出将设备模式标识符转换为设备名称的方法。 有很多答案依赖于硬编码这些名称,不幸的是,当苹果发布新设备时,这些名称很快就过时了。

我们需要的是一种方法来获得一个不断更新的列表,它就在这里:https://github.com/ptrkstr/Devices

每次添加新设备时,这个Swift包都会更新,你所需要做的就是更新你的依赖项来获得它们。

Swift 4或更高版本

extension UIDevice {
    var modelName: String {
        if let modelName = ProcessInfo.processInfo.environment["SIMULATOR_MODEL_IDENTIFIER"] { return modelName }
        var info = utsname()
        uname(&info)
        return String(String.UnicodeScalarView(
                   Mirror(reflecting: info.machine)
                    .children
                    .compactMap {
                        guard let value = $0.value as? Int8 else { return nil }
                        let unicode = UnicodeScalar(UInt8(value))
                        return unicode.isASCII ? unicode : nil
                    }))
    }
}

UIDevice.current.modelName   // "iPad6,4"

下面是它的代码(代码可能不包含所有设备的字符串,我和其他人在GitHub上维护相同的代码,所以请从那里获取最新的代码)

Objective-C: GitHub/DeviceUtil

吉hub /恶魔大师


#include <sys/types.h>
#include <sys/sysctl.h>

- (NSString*)hardwareDescription {
    NSString *hardware = [self hardwareString];
    if ([hardware isEqualToString:@"iPhone1,1"]) return @"iPhone 2G";
    if ([hardware isEqualToString:@"iPhone1,2"]) return @"iPhone 3G";
    if ([hardware isEqualToString:@"iPhone3,1"]) return @"iPhone 4";
    if ([hardware isEqualToString:@"iPhone4,1"]) return @"iPhone 4S";
    if ([hardware isEqualToString:@"iPhone5,1"]) return @"iPhone 5";
    if ([hardware isEqualToString:@"iPod1,1"]) return @"iPodTouch 1G";
    if ([hardware isEqualToString:@"iPod2,1"]) return @"iPodTouch 2G";
    if ([hardware isEqualToString:@"iPad1,1"]) return @"iPad";
    if ([hardware isEqualToString:@"iPad2,6"]) return @"iPad Mini";
    if ([hardware isEqualToString:@"iPad4,1"]) return @"iPad Air WIFI";
    //there are lots of other strings too, checkout the github repo
    //link is given at the top of this answer

    if ([hardware isEqualToString:@"i386"]) return @"Simulator";
    if ([hardware isEqualToString:@"x86_64"]) return @"Simulator";

    return nil;
}

- (NSString*)hardwareString {
    size_t size = 100;
    char *hw_machine = malloc(size);
    int name[] = {CTL_HW,HW_MACHINE};
    sysctl(name, 2, hw_machine, &size, NULL, 0);
    NSString *hardware = [NSString stringWithUTF8String:hw_machine];
    free(hw_machine);
    return hardware;
}

[[UIDevice currentDevice] model]只返回iPhone或iPod,你不会得到能让你区分不同代设备的型号的数字。

编写这个方法:

#include <sys/sysctl.h>
...

+ (NSString *)getModel {
    size_t size;
    sysctlbyname("hw.machine", NULL, &size, NULL, 0);
    char *model = malloc(size);
    sysctlbyname("hw.machine", model, &size, NULL, 0);
    NSString *deviceModel = [NSString stringWithCString:model encoding:NSUTF8StringEncoding];
    free(model);
    return deviceModel;
}

当你需要模型的时候调用方法[self getModel],你会得到例如:"iPhone5,1"对于超薄而快速的iPhone5。

一个好的做法是创建一个名为Utils.h/Utils的类。m并在那里放置像getModel这样的方法,这样你就可以从应用程序的任何地方获得这些信息,只需导入类并调用[Utils getModel];

为了节省别人的时间。 因为接受,必须投票回答建议库使用私人API和我的应用程序被拒绝,因为uidevice-extension就在昨天! 我切换到GBDeviceInfo库,安装为pod以及,现在它看起来不错,维护和更新到最新的设备。