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"
我被告知可以使用 CaptiveNetwork 特别是 CNCopyCurrentNetworkInfo
I have been told it can be done with CaptiveNetwork specifically CNCopyCurrentNetworkInfo
到目前为止我的代码:
#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 为零.
When the code runs on a device in a WiFi hotspot the captiveNtwrkDict is nil.
有没有人设法让它工作?我在 CaptiveNetworks 上找不到太多文档或任何示例代码示例...任何帮助将不胜感激.
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
需要找出哪些网络可用，然后将它们传递给 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));
...然后你可以使用你得到的字典 (myDict) 上的 kCNNetworkInfoKeySSID 来找出 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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