Wifi strength in iPhone app

Does anyone have some code I can use in an iPhone app that will let开发者_开发知识库 me see strength of wifi? I have a connection intensive operation and prefer they aren't in a spotty zone

This may help get you going on the right track .....

http://blog.vladalexa.com/2010/07/07/iphone-signal-testing-with-code/

I doubt this is possible.

iOS and its SDK isolate applications from doing (and querying) most system-level things. What you could do is to use [NSData dataWithContentsFromURL:...] to do one or two HTTP requests to ensure that the connection is stable and then do the main data transfers.

I wanted to point those of you who land here to a great reference on this question.

Getting the wifi signal for your use on an iOS device:

Accessing & Using the MobileWiFi.framework