iOS 11.0 - Periodically scan for SSIDs (WiFi) nearby

Question

I would like to scan for nearby SSIDs of the Wi-Fi networks periodically (without connecting to it) and implement an SSID filter (one or multiple). Once a match is found a back-end API call is initiated.


I have done a quick research on the Hotspot Helper framework in iOS 10. I found that, these APIs are not designed for the use I’ve identified.


Seems like, iOS 11 now allows apps to manage Wi-Fi configurations programmatically. Apple added a network extension for hotspot configuration methods and properties. Please click here to see the changes. 


My question here is, can I achieve my goal through the newly iOS 11 hotspot configuration class? Or does this provide the SSID of a known network or the currently connected one?



Any help on this is highly appreciated.

Answer 1

Unfortunately, we can't achieve this in iOS.

When I learned about NEHotspotConfiguration, I was initially excited, because I was hoping we could automate this process. However, it doesn't look like there's a way to retrieve a list of currently available SSIDs, which makes NEHotspotConfiguration much less useful for our use case.

Answer 2

Not possible.

I enabled the NEHotspotHelper permission and tried on a Demo app. Even though Apple does allow you to configure wifi connections, in order to get the list of available networks, you need to open the Settings > WiFi page to get the list. This API can NOT offer the ability to scan the WiFi list in background, not to mention periodically.

It's a pity for developers, but I think it's good for iOS users, to protect privacy and safety by strict restriction of the API usage.