iOS获取设备型号 系统版本

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

+ (NSString *) platformString{
    NSString *platform = [self getDeviceVersion];
    //iPhone
    if ([platform isEqualToString:@"iPhone1,1"])   return@"iPhone 1G";
    if ([platform isEqualToString:@"iPhone1,2"])   return@"iPhone 3G";
    if ([platform isEqualToString:@"iPhone2,1"])   return@"iPhone 3GS";
    if ([platform isEqualToString:@"iPhone3,1"])   return@"iPhone 4";
    if ([platform isEqualToString:@"iPhone3,2"])   return@"Verizon iPhone 4";
    if ([platform isEqualToString:@"iPhone3,3"])   return@"iPhone 4 (CDMA)";
    if ([platform isEqualToString:@"iPhone4,1"])   return @"iPhone 4s";
    if ([platform isEqualToString:@"iPhone5,1"])   return @"iPhone 5 (GSM/WCDMA)";
    if ([platform isEqualToString:@"iPhone4,2"])   return @"iPhone 5 (CDMA)"; 
    if ([platform isEqualToString:@"iPhone5,2"])   return @"iPhone 5";
    if ([platform isEqualToString:@"iPhone6,1"])   return @"iPhone 5C";
    if ([platform isEqualToString:@"iPhone6,2"])   return @"iPhone 5S";
    
    //iPot Touch 
    if ([platform isEqualToString:@"iPod1,1"])     return@"iPod Touch 1G";
    if ([platform isEqualToString:@"iPod2,1"])     return@"iPod Touch 2G";
    if ([platform isEqualToString:@"iPod3,1"])     return@"iPod Touch 3G";
    if ([platform isEqualToString:@"iPod4,1"])     return@"iPod Touch 4G";
    if ([platform isEqualToString:@"iPod5,1"])     return@"iPod Touch 5G";
    //iPad
    if ([platform isEqualToString:@"iPad1,1"])     return@"iPad";
    if ([platform isEqualToString:@"iPad2,1"])     return@"iPad 2 (WiFi)";
    if ([platform isEqualToString:@"iPad2,2"])     return@"iPad 2 (GSM)";
    if ([platform isEqualToString:@"iPad2,3"])     return@"iPad 2 (CDMA)";
    if ([platform isEqualToString:@"iPad2,4"])     return@"iPad 2 New";
    if ([platform isEqualToString:@"iPad2,5"])     return@"iPad Mini (WiFi)";
    if ([platform isEqualToString:@"iPad3,1"])     return@"iPad 3 (WiFi)";
    if ([platform isEqualToString:@"iPad3,2"])     return@"iPad 3 (CDMA)";
    if ([platform isEqualToString:@"iPad3,3"])     return@"iPad 3 (GSM)";
    if ([platform isEqualToString:@"iPad3,4"])     return@"iPad 4 (WiFi)";
    if ([platform isEqualToString:@"i386"] || [platform isEqualToString:@"x86_64"])        return@"Simulator";
    
    return platform;
}