如何在obj-c上获得信号强度？

Question

I'm stuck on how to get the signal strength using Objective-C.

I'm referring to this video . Many people say accomplishing that task is impossible, since Apple hasn't opened the API, but how did the person on the video do it?

Answer 1

Yes, it is possible but it's not a public method and therefore you won't be able to get it on the app store. The app in the video was just a demo version.

Check out this duplicate question: Measuring cellular signal strength