Keep WiFi Active?

[soupjr]

Hello,

I have written an app that basically removes the Safari navigation bars by using a UIWebView and a settings bundle to set url. A pretty simple app... however, even with JavaScript sending AJAX calls and AutoLock turned off, the iPod Touches still turn off the WiFi radio after some time (can't tell exactly how long). Is there any way that I can keep the radio alive programmatically? I have found some sample code from Apple that shows how to detect availability but no discussion on activating the radio if it shuts off.

I do not want to do any jailbreaking in order to accomplish this. I have AutoLock set to 'Never' because ideally I'd like to keep the display on at all times. (By the way, the organization I work for owns all the devices this app will be on which is why the AutoLock will always be set to Never).

If anyone can help, I would very much appreciate it.

Thanks!

[ecume]

add the following to your info.plist

<key>UIRequiresPersistentWiFi</key>
<true/>

Originally Posted by soupjr

Hello,

I have written an app that basically removes the Safari navigation bars by using a UIWebView and a settings bundle to set url. A pretty simple app... however, even with JavaScript sending AJAX calls and AutoLock turned off, the iPod Touches still turn off the WiFi radio after some time (can't tell exactly how long). Is there any way that I can keep the radio alive programmatically? I have found some sample code from Apple that shows how to detect availability but no discussion on activating the radio if it shuts off.

I do not want to do any jailbreaking in order to accomplish this. I have AutoLock set to 'Never' because ideally I'd like to keep the display on at all times. (By the way, the organization I work for owns all the devices this app will be on which is why the AutoLock will always be set to Never).

If anyone can help, I would very much appreciate it.

Thanks!

[soupjr]

Thanks ecume! As far as I can tell my 2 test devices are maintaining their WiFi connection even after 10+ minutes without a touch event.

One quick follow up question for you if you have a free minute. I found this link to see all the possible info.plist field/value pairs, but is there a more official list? The UIRequiresPersistentWiFi was not mentioned in the SDK docs as far as I can tell.

Thanks again!

Originally Posted by ecume

add the following to your info.plist

<key>UIRequiresPersistentWiFi</key>
<true/>

[bharath2020]

It is officially mentioned in iPhone OS Programming guide.. Search for UIPersistentWifi key in the pdf.. Wifi connection is switched off after 30 min from the time when the application is launched to preserve battery..

[soupjr]

Found it bharath2020 - Thanks for reference!

Originally Posted by bharath2020

It is officially mentioned in iPhone OS Programming guide.. Search for UIPersistentWifi key in the pdf.. Wifi connection is switched off after 30 min from the time when the application is launched to preserve battery..

[Narender Mudgal]

Originally Posted by soupjr

Hello,

I have found some sample code from Apple that shows how to detect availability but no discussion on activating the radio if it shuts off.

Thanks!

hi soupjr,
can you please give me the link for that apple code,
I want to check wheather we can programatically check for sound(on/off) or not.

[soupjr]

Originally Posted by Narender Mudgal

hi soupjr,
can you please give me the link for that apple code,
I want to check wheather we can programatically check for sound(on/off) or not.

Hey Naren,

Here is the Apple sample code.

https://developer.apple.com/iphone/l.../Reachability/

Bear in mind this code is specifically geared to help you detect for WiFi or Edge/3G. I doubt it can detect whether someone has their sound turned on or off.