Robert Robert - 1 year ago 92
Objective-C Question

How do I use CaptiveNetwork to get the current WiFi Hotspot Name

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

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

My code so far:

#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);

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

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.

lxt lxt
Answer Source

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));

...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.