获取iOS设备型号

- (NSString)deviceModelName {
    struct utsname systemInfo;
    uname(&systemInfo);
    NSString deviceModel = [NSString stringWithCString:systemInfo.machine encoding:NSUTF8StringEncoding];
    
    // iPhone系列
    if ([deviceModel isEqualToString:@"iPhone1,1"]) return @"iPhone 1G";
    if ([deviceModel isEqualToString:@"iPhone1,2"]) return @"iPhone 3G";
    if ([deviceModel isEqualToString:@"iPhone2,1"]) return @"iPhone 3GS";
    if ([deviceModel isEqualToString:@"iPhone3,1"]) return @"iPhone 4";
    if ([deviceModel isEqualToString:@"iPhone3,2"]) return @"Verizon 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";
    if ([deviceModel isEqualToString:@"iPhone5,3"]) return @"iPhone 5C";
    if ([deviceModel isEqualToString:@"iPhone5,4"]) return @"iPhone 5C";
    if ([deviceModel isEqualToString:@"iPhone6,1"]) return @"iPhone 5S";
    if ([deviceModel isEqualToString:@"iPhone6,2"]) return @"iPhone 5S";
    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";
    
    // iPod系列
    if ([deviceModel isEqualToString:@"iPod1,1"]) return @"iPod Touch 1G";
    if ([deviceModel isEqualToString:@"iPod2,1"]) return @"iPod Touch 2G";
    if ([deviceModel isEqualToString:@"iPod3,1"]) return @"iPod Touch 3G";
    if ([deviceModel isEqualToString:@"iPod4,1"]) return @"iPod Touch 4G";
    if ([deviceModel isEqualToString:@"iPod5,1"]) return @"iPod Touch 5G";
    
    // iPad系列
    if ([deviceModel isEqualToString:@"iPad1,1"]) return @"iPad";
    if ([deviceModel isEqualToString:@"iPad2,1"]) return @"iPad 2 (WiFi)";
    if ([deviceModel isEqualToString:@"iPad2,2"]) return @"iPad 2 (GSM)";
    if ([deviceModel isEqualToString:@"iPad2,3"]) return @"iPad 2 (CDMA)";
    if ([deviceModel isEqualToString:@"iPad2,4"]) return @"iPad 2 (32nm)";
    if ([deviceModel isEqualToString:@"iPad2,5"]) return @"iPad mini (WiFi)";
    if ([deviceModel isEqualToString:@"iPad2,6"]) return @"iPad mini (GSM)";
    if ([deviceModel isEqualToString:@"iPad2,7"]) return @"iPad mini (CDMA)";
    
    if ([deviceModel isEqualToString:@"iPad3,1"]) return @"iPad 3(WiFi)";
    if ([deviceModel isEqualToString:@"iPad3,2"]) return @"iPad 3(CDMA)";
    if ([deviceModel isEqualToString:@"iPad3,3"]) return @"iPad 3(4G)";
    if ([deviceModel isEqualToString:@"iPad3,4"]) return @"iPad 4 (WiFi)";
    if ([deviceModel isEqualToString:@"iPad3,5"]) return @"iPad 4 (4G)";
    if ([deviceModel isEqualToString:@"iPad3,6"]) return @"iPad 4 (CDMA)";
    
    if ([deviceModel isEqualToString:@"iPad4,1"]) return @"iPad Air";
    if ([deviceModel isEqualToString:@"iPad4,2"]) return @"iPad Air";
    if ([deviceModel isEqualToString:@"iPad4,3"]) return @"iPad Air";
    if ([deviceModel isEqualToString:@"iPad5,3"]) return @"iPad Air 2";
    if ([deviceModel isEqualToString:@"iPad5,4"]) return @"iPad Air 2";
    if ([deviceModel isEqualToString:@"i386"]) return @"Simulator";
    if ([deviceModel isEqualToString:@"x86_64"]) return @"Simulator";
    
    if ([deviceModel isEqualToString:@"iPad4,4"]
        ||[deviceModel isEqualToString:@"iPad4,5"]
        ||[deviceModel isEqualToString:@"iPad4,6"]) return @"iPad mini 2";
    
    if ([deviceModel isEqualToString:@"iPad4,7"]
        ||[deviceModel isEqualToString:@"iPad4,8"]
        ||[deviceModel isEqualToString:@"iPad4,9"]) return @"iPad mini 3";
    
    return deviceModel;
}