如何找到像gsm和cdma这样的网络功能

Question

我有一个要求，比如我需要以编程方式找到，具有GSM，CDMA和SPI网络能力的IOS设备。

所以，如果有任何方法可以找到，请告诉我。

先谢谢。

Answer 1

使用UIDevice课程，您可以确定您的应用程序是在iPod还是iPhone上运行。要获取此信息，请访问名为model的属性，该属性将返回iPhone或iPod touch的NSString。但是，有时候你需要更多细节，例如iPhone是最新的设备，3GS还是另一方面，iPod是第一代还是第二代设备？

访问系统硬件将揭示我们做出上述区分所需的信息。我们将使用一个类别来扩展UIDevice类，该方法将“machine”类型作为字符串返回。从下面的接口定义开始：

@interface UIDevice(machine)
- (NSString *)machine;
@end

要访问硬件类型，我们将调用标准C库中的函数：

sysctlbyname(const char *name, void *oldp, size_t *oldlenp, void *newp, size_t newlen);

Read more here...

或

导入#import <sys/utsname.h>

然后，NSString *deviceName = [Classname myDeviceModel];

+ (NSString*)myDeviceModel 
  {
    struct utsname deviceInfo;

    uname(&deviceInfo);

    NSString *deviceNameTemp = [NSString stringWithCString:deviceInfo.machine encoding:NSUTF8StringEncoding];
    NSDictionary *deviceDictionary =
    @{

   //simulators.
   @"i386":     @"iPhone Simulator",
   @"x86_64":   @"iPad Simulator",

   //iPhone's.
   @"iPhone1,1":    @"iPhone",
   @"iPhone1,2":    @"iPhone 3G",
   @"iPhone2,1":    @"iPhone 3GS",
   @"iPhone3,1":    @"iPhone 4",
   @"iPhone3,2":    @"iPhone 4(Rev A)",
   @"iPhone3,3":    @"iPhone 4(CDMA)",
   @"iPhone4,1":    @"iPhone 4S",
   @"iPhone5,1":    @"iPhone 5(GSM)",
   @"iPhone5,2":    @"iPhone 5(GSM+CDMA)",
   @"iPhone5,3":    @"iPhone 5c(GSM)",
   @"iPhone5,4":    @"iPhone 5c(GSM+CDMA)",
   @"iPhone6,1":    @"iPhone 5s(GSM)",
   @"iPhone6,2":    @"iPhone 5s(GSM+CDMA)",

   //iPads.
   @"iPad1,1":  @"iPad",
   @"iPad2,1":  @"iPad 2(WiFi)",
   @"iPad2,2":  @"iPad 2(GSM)",
   @"iPad2,3":  @"iPad 2(CDMA)",
   @"iPad2,4":  @"iPad 2(WiFi Rev A)",
   @"iPad2,5":  @"iPad Mini(WiFi)",
   @"iPad2,6":  @"iPad Mini(GSM)",
   @"iPad2,7":  @"iPad Mini(GSM+CDMA)",
   @"iPad3,1":  @"iPad 3(WiFi)",
   @"iPad3,2":  @"iPad 3(GSM+CDMA)",
   @"iPad3,3":  @"iPad 3(GSM)",
   @"iPad3,4":  @"iPad 4(WiFi)",
   @"iPad3,5":  @"iPad 4(GSM)",
   @"iPad3,6":  @"iPad 4(GSM+CDMA)",

   //ipods
   @"iPod1,1":  @"iPod 1st Gen",
   @"iPod2,1":  @"iPod 2nd Gen",
   @"iPod3,1":  @"iPod 3rd Gen",
   @"iPod4,1":  @"iPod 4th Gen",
   @"iPod5,1":  @"iPod 5th Gen",

   };

    NSString *deviceName = commonNamesDictionary[deviceNameTemp];

    if (deviceName == nil) 
    {
        deviceName = machineName;
    }

    return deviceName;
}