Comments on: How-to: Prevent iPhone from Deep Sleeping

By: Mike Nigh

Mike Nigh — Fri, 18 Nov 2011 08:35:35 +0000

Thanks for the code.

However it does not seem to work. I replaced the sound file with something that plays music and it plays the music while the app is visible but when it goes in the background the music stops and the app “sleeps”.

By: erich

erich — Wed, 09 Nov 2011 14:47:23 +0000

hi marco!

danke für dein howto! hab mir auch gerade dein app installiert – der sleep-trick funktioniert bestens. bei tunealarm ist mir aufgefallen, wenn keine mp3′s vorhanden sind und man tippt auf speichern, schließt sich die app. (3G 3.1.2) .

lg,erich

By: Bearc

Bearc — Mon, 24 Oct 2011 19:22:11 +0000

Great stuff!
It doesn’t seem to work w/ iOS 5 though. Or is it me?

Thanks in advance for any response.

By: ahvv1

ahvv1 — Mon, 17 Oct 2011 04:58:24 +0000

after upgrade to IOS5, I can no longer to do that again more…need help!!

By: Abhijeet Pathak

Abhijeet Pathak — Wed, 07 Sep 2011 11:27:00 +0000

Hi Macro,
I tried the app on iPhone 3GS running iOS 4.2.1. I added an NSLog() statement in mmp_playPreventSleepSound() before playing sound. It works well when app is active on phone and I can see log message.
But when I press Home key app immediately stops. Any idea why this is happening?

By: sarona

sarona — Tue, 19 Jul 2011 10:22:40 +0000

I want to do that in my game because I have a count down timer and i want it to continue counting down even if the game resign active….so please if you have another idea, I will be glade if you guide me to the right way :)
thanks again :)

By: sarona

sarona — Tue, 19 Jul 2011 10:20:57 +0000

hi marco …great job :)
I tried to use your code with my application but it doesn’t work…
I used cocos2d and ios 4.2 , is that the problem?
please help I am completely clueless

thanks

By: GT

GT — Thu, 07 Jul 2011 01:40:43 +0000

Hello Marco, thank you for your great job!

Otherwise, could your code properly work even that the user click the home button and exit to the launcher on device supporting multi-task? If not yet, anything can do to add such feature?

By: Fabrizio Bartolomucci

Fabrizio Bartolomucci — Fri, 10 Jun 2011 13:28:07 +0000

Hullo, I am afraid that iOS 5 introduced some features that interferes with the behaviors of timers and sounds while the iPhone is locked even by using the sleep preventer in this article. Is there a fix for it or you know if this problem shall be eventually solved by apple in a future release of iOS 5?

Thanks, Fabrizio

By: Marco

Marco — Sat, 21 May 2011 18:21:03 +0000

I’m sorry, but I’ve never tried to use this in combination with Bluetooth.

If you figure anything out, let me know about it, please.