CNCopySupportedInterfaces() returning no value although wifi connected

Question

I am using CNCopySupportedInterfaces() to get bssid and it is not returning any value. Not sure why.

My code looks like this:

    #import <SystemConfiguration/CaptiveNetwork.h>

    CFArrayRef myArray = CNCopySupportedInterfaces();
    CFDictionaryRef myDict = CNCopyCurrentNetworkInfo(CFArrayGetValueAtIndex(myArray, 0));
    NSLog(@"Connected at:%@",myDict);
    NSDictionary *myDictionary = (__bridge_transfer NSDictionary*)myDict;
    NSString * BSSID = [myDictionary objectForKey:@"BSSID"];
    NSLog(@"bssid is %@",BSSID);

NSLog(@"%@",CNCopySupportedInterfaces());

returns (null)

Not sure what is wrong? Need some guidance

lakshmen · Accepted Answer · 2013-03-06T10:29:42.863

5

Just figured out it this code does not work in ios6.. working fine in ios5.. it doesn't work in simulator. Try in the device.

edited Mar 06 '13 at 10:29

answered Mar 06 '13 at 06:13

lakshmen

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Works find for me on my iOS 6 and iOS 7 (beta) devices. Not in simulator. – Henning Sep 06 '13 at 18:01
dun use simulator. this need to use device. – lakshmen Sep 07 '13 at 10:46
I'm use iphone 5S os 7.1 it not working, CNCopyCurrentNetworkInfo(CFArrayGetValueAtIndex(myArray, 0)) return null – vualoaithu Apr 17 '14 at 08:05

score 2 · Answer 2 · answered Oct 08 '18 at 23:32

2

To use CNCopySupportedInterfaces you must enable Access WiFi Information capability in the Capabilities pane of your project settings.

answered Oct 08 '18 at 23:32

HenryRootTwo

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This is true, iOS 12 requires app to turn on this Entitlement. (Apart from the simulator issue) – kakaiikaka Mar 13 '19 at 23:57

CNCopySupportedInterfaces() returning no value although wifi connected

2 Answers2