Question

[[UIDevice currentDevice] model];返回的所有可能值是多少？它不是documented。

Answer 1

可能的值包括iPod touch，iPhone，iPhone Simulator，iPad，iPad Simulator

如果您想知道哪些硬件iOS正在破坏，iPhone3，iPhone4，iPhone5等，则代码为

注意：下面的代码可能不包含所有设备的字符串，我和其他人在 GitHub上保持相同的代码所以请从那里获取最新的代码

#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

我刚刚对iPod Touch，iPhone，手机视网膜，iPhone 5，iPad，iPad Retina和iPad Mini进行了测试。所以这是我的结论：

iPod touch
iPhone
iPad

在模拟器上 - 如果你是一名开发有时在模拟器上根本无法工作的功能的开发人员，这可能很有用 - 你会得到这些值：

iPhone Simulator
iPad Simulator

Answer 3

我相信解释的最佳答案（这里没有写的东西）就是说值本身就是一个String值。并且可能的答案是字符串，例如：＆＃34; iPhone＆＃34;，＆＃34; iPad＆＃34;等等。

Answer 4

这些答案都不适用于新型号。这是一个枚举：

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

扩展我写道，我认为当新的型号出现时，它会更清洁，更可扩展。

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
        }
    }
}

UIDevice currentDevice模型可能的值

4 个答案: