iOS 获取手机具体型号（更新到iPhone 12 Pro Ma

我们在开发过程中会遇到获取iPhone的具体型号，目前更新至iPhone 12 Pro Max。后续苹果如果出新产品，可自行查阅官方文档https://www.theiphonewiki.com/wiki/Models，苹果的系列产品都会有具体说明。我这里只做了iPhone的判断，可针对自己的需求，自行添加。只需记下官方文档中设备型号以及设备对应的Identifier，加进下面的方法即可。

#import <sys/utsname.h>//要导入头文件

//获取设备型号方法
+ (NSString *)getCurrentDeviceModel{
    struct utsname systemInfo;
    uname(&systemInfo);
    
    NSString *deviceModel = [NSString stringWithCString:systemInfo.machine encoding:NSASCIIStringEncoding];
    if ([deviceModel isEqualToString:@"iPhone3,1"])    return @"iPhone 4";
    if ([deviceModel isEqualToString:@"iPhone3,2"])    return @"iPhone 4";
    if ([deviceModel isEqualToString:@"iPhone3,3"])    return @"iPhone 4";
    if ([deviceModel isEqualToString:@"iPhone4,1"])    return @"iPhone 4S";
    if ([deviceModel isEqualToString:@"iPhone5,1"])    return @"iPhone 5";
    if ([deviceModel isEqualToString:@"iPhone5,2"])    return @"iPhone 5 (GSM+CDMA)";
    if ([deviceModel isEqualToString:@"iPhone5,3"])    return @"iPhone 5c (GSM)";
    if ([deviceModel isEqualToString:@"iPhone5,4"])    return @"iPhone 5c (GSM+CDMA)";
    if ([deviceModel isEqualToString:@"iPhone6,1"])    return @"iPhone 5s (GSM)";
    if ([deviceModel isEqualToString:@"iPhone6,2"])    return @"iPhone 5s (GSM+CDMA)";
    if ([deviceModel isEqualToString:@"iPhone7,1"])    return @"iPhone 6 Plus";
    if ([deviceModel isEqualToString:@"iPhone7,2"])    return @"iPhone 6";
    if ([deviceModel isEqualToString:@"iPhone8,1"])    return @"iPhone 6s";
    if ([deviceModel isEqualToString:@"iPhone8,2"])    return @"iPhone 6s Plus";
    if ([deviceModel isEqualToString:@"iPhone8,4"])    return @"iPhone SE";
    if ([deviceModel isEqualToString:@"iPhone9,1"])    return @"iPhone 7";
    if ([deviceModel isEqualToString:@"iPhone9,2"])    return @"iPhone 7 Plus";
    if ([deviceModel isEqualToString:@"iPhone9,3"])    return @"iPhone 7";
    if ([deviceModel isEqualToString:@"iPhone9,4"])    return @"iPhone 7 Plus";
    if ([deviceModel isEqualToString:@"iPhone10,1"])   return @"iPhone_8";
    if ([deviceModel isEqualToString:@"iPhone10,4"])   return @"iPhone_8";
    if ([deviceModel isEqualToString:@"iPhone10,2"])   return @"iPhone_8_Plus";
    if ([deviceModel isEqualToString:@"iPhone10,5"])   return @"iPhone_8_Plus";
    if ([deviceModel isEqualToString:@"iPhone10,3"])   return @"iPhone X";
    if ([deviceModel isEqualToString:@"iPhone10,6"])   return @"iPhone X";
    if ([deviceModel isEqualToString:@"iPhone11,8"])   return @"iPhone XR";
    if ([deviceModel isEqualToString:@"iPhone11,2"])   return @"iPhone XS";
    if ([deviceModel isEqualToString:@"iPhone11,6"])   return @"iPhone XS Max";
    if ([deviceModel isEqualToString:@"iPhone11,4"])   return @"iPhone XS Max";
    if ([deviceModel isEqualToString:@"iPhone12,1"])   return @"iPhone 11";
    if ([deviceModel isEqualToString:@"iPhone12,3"])   return @"iPhone 11 Pro";
    if ([deviceModel isEqualToString:@"iPhone12,5"])   return @"iPhone 11 Pro Max";
    if ([deviceModel isEqualToString:@"iPhone12,8"])   return @"iPhone SE2";
    if ([deviceModel isEqualToString:@"iPhone13,1"])   return @"iPhone 12 mini";
    if ([deviceModel isEqualToString:@"iPhone13,2"])   return @"iPhone 12";
    if ([deviceModel isEqualToString:@"iPhone13,3"])   return @"iPhone 12 Pro";
    if ([deviceModel isEqualToString:@"iPhone13,4"])   return @"iPhone 12 Pro Max";
   
    return deviceModel;
}