UIDevice currentDevice模型可能的值

Question

What are all the possible values returned by [[UIDevice currentDevice] model]; ? It isn't documented .

Answer 1

The possible vales are iPod touch , iPhone , iPhone Simulator , iPad , iPad Simulator

If you want to know which hardware iOS is ruining on like iPhone3 , iPhone4 , iPhone5 etc below is the code for that

---

NOTE: The below code may not contain all device's string, I'm with other guys are maintaining the same code on GitHub so please take the latest code from there

Objective-C : GitHub/DeviceUtil

Swift : GitHub/DeviceGuru

---

#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;
}

Answer 2

I just did a test on iPod Touch, iPhone, Phone Retina, iPhone 5, iPad, iPad Retina and iPad Mini. So this is my conclusion:

iPod touch
iPhone
iPad

On simulators - this could be useful if you're a developer working on features that sometimes do not work at all on simulators - you'll get these values:

iPhone Simulator
iPad Simulator

Answer 3

I believe the best answer to explain(something which wasn't written here) Is to say that the value itself is a String value. and the possible answers are string eg: "iPhone","iPad" and etc..

Answer 4

None of these answers are extendable for new model numbers. Here is an enumeration:

public enum DeviceType {
 case iPad(String?)
 case iPhone(String?)
 case simulator(String?)
 case appleTV(String?)
 case unknown
}

And Extension I wrote that I think is a little cleaner and a little more extendable for when new model number come out.

extension UIDevice {
    public static func getDevice() -> DeviceType {
        var info = utsname()
        uname(&info)
        let machineMirror = Mirror(reflecting: info.machine)
        let code = machineMirror.children.reduce("") { identifier, element in
            guard let value = element.value as? Int8, value != 0 else {
                return identifier
            }
            return identifier + String(UnicodeScalar(UInt8(value)))
        }

        if code.lowercased().range(of: "ipad") != nil {
            if let range = code.lowercased().range(of: "ipad") {
                var mutate = code
                mutate.removeSubrange(range)
                return .iPad(mutate)
            }else{
                return .iPad(nil)
            }
        }else if code.lowercased().range(of: "iphone") != nil {
            if let range = code.lowercased().range(of: "iphone") {
                var mutate = code
                mutate.removeSubrange(range)
                return .iPhone(mutate)
            }else{
                return .iPhone(nil)
            }
        }else if code.lowercased().range(of: "i386") != nil || code.lowercased().range(of: "x86_64") != nil{
            return .simulator(code)
        }else if code.lowercased().range(of: "appletv") != nil {
            if let range = code.lowercased().range(of: "appletv") {
                var mutate = code
                mutate.removeSubrange(range)
                return .appleTV(mutate)
            }else{
                return .appleTV(nil)
            }
        }else{
            return .unknown
        }
    }
}