如何使用CaptiveNetwork获取当前的WiFi热点名称 [英] How do I use CaptiveNetwork to get the current WiFi Hotspot Name

问题描述

我需要获取当前连接的Wi-Fi热点的名称，例如BT OpenZone

I need to get the name of the currently connected Wi-Fi hotspot, e.g. "BT OpenZone"

我被告知可以通过 CaptiveNetwork 专门CNCopyCurrentNetworkInfo

I have been told it can be done with CaptiveNetwork specifically CNCopyCurrentNetworkInfo

我的代码到目前为止：

#import <SystemConfiguration/CaptiveNetwork.h>
...

// Get the dictionary containing the captive network infomation
CFDictionaryRef captiveNtwrkDict = CNCopyCurrentNetworkInfo(kCNNetworkInfoKeySSID);

// Get the count of the key value pairs to test if it has worked
int count = CFDictionaryGetCount(captiveNtwrkDict);
NSLog(@"Count of dict:%d",count);

当代码在WiFi热点的设备上运行时， captiveNtwrkDict 是nil。

When the code runs on a device in a WiFi hotspot the captiveNtwrkDict is nil.

有人设法让它工作吗？我不能在CaptiveNetworks上找到许多文档或任何示例代码示例...任何帮助将非常感激。

Has anyone managed to get it working? I cant find much documentation or any example code examples on CaptiveNetworks... any help would be much appreciated.

推荐答案

找出哪些网络可用，然后将它们传递到CNCopyCurrentNetworkInfo。例如：

You need to find out which networks are available, and then pass them into CNCopyCurrentNetworkInfo. For example:

CFArrayRef myArray = CNCopySupportedInterfaces();
CFDictionaryRef myDict = CNCopyCurrentNetworkInfo(CFArrayGetValueAtIndex(myArray, 0));

...然后你可以使用你回​​来的字典的kCNNetworkInfoKeySSID（myDict）找出SSID。不要忘记适当地释放/管理内存。

...and you can then use the kCNNetworkInfoKeySSID on the dictionary you've got back (myDict) to find out the SSID. Don't forget to release/manage memory appropriately.

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