Is there a way to toggle wifi on and off programat

问题:

I done it for Bluetooth using the code on this link: Is there a way to toggle bluetooth and/or wifi on and off programmatically in iOS?

But I couldn't figure out how to do the same for Wifi. How do you switch the Wifi on/off? Is it possible ?

回答1:

In iOs 2.x you can use some private API to do this, however it does not work in iOS4.x, 5.x. Hope that Apple will public the API for manage Wifi, now it is only used by Setting apple app.

回答2:

It's definitely not possible to turn WiFi off or on with any public (documented) API.

It might be possible to achieve this even on a non-jailbroken device using private functions.

See Apple80211Functions - there is a private function called Apple80211SetPower which is a good candidate for this job. But using it would be also interfering with automatic TX power settings - could result in either increased battery usage or decreased WiFi link quality (or both).

Of course your app would most definitely not pass App Store approval using this.

You can see how Apple80211 functions can be used if you download Stumbler source.

Stumbler SVN checkout is done by:

svn checkout http://iphone-wireless.googlecode.com/svn/trunk/ iphone-wireless-read-only

There are also two other projects that might help you start with low-level WiFi functions:

web-login-helper

BECHA

回答3:

I'm fairly certain that the SDK does not allow access to turning Wifi on or off using the public framework, sorry. You could use a private framework but then you won't get your app past Apple, I suspect.