IPod app stops responding after iPod returns from standby mode?

Sounds like your Audio Unit has been stopped If your GUI relies on the AU's progress then that would explain the problem Check your AU's state in applicationDidBecomeActive I didn't think standby mode stopped AUs, I thought only audio interruptions did that. Anyway, you should probably look at AudioSessions as well, as you'll find that phone calls, alarms, SMSs and ipod music will also stop your Audio Unit Good luck.

Sounds like your Audio Unit has been stopped. If your GUI relies on the AU's progress then that would explain the problem. Check your AU's state in applicationDidBecomeActive.

I didn't think standby mode stopped AUs, I thought only audio interruptions did that. Anyway, you should probably look at AudioSessions as well, as you'll find that phone calls, alarms, SMSs and ipod music will also stop your Audio Unit. Good luck.

Actually, I've been running into this problem on the iPod application itself, in just general daily use. That is, if you are using the 3.0 firmware OS, then this is most likely a bug in the iPhone. I guess you can relax, and know that it's probably not your own code that is causing the problem.

I'd file a radar ticket with Apple if you haven't already so that they can address it in the next bug fix release.

Thank you for responding. I can trigger the problem by just turning the device off and on again while the application is running. As mentioned, if a create a new project from one of the templates it does not have this problem.

I have then tried uncommenting the part where I use the Audio Unit but that did not help. This has made me think that maybe it is also related to my project settings. How do you reset the project settings?

Sometimes xcode crashes and asks me if I want to reset the project settings but right now I can't get it to crash.

It all happens just because I have an UISlider in an UIToolbar. If I remove the UISlider from my GUI it still responds after waking up from standby/sleep mode. Can someone explain me why that causes this problem (is it a bug in Apple's code)?

The solution is here: iphonedevsdk.com/forum/iphone-sdk-develo... Simply don't put a slider in a toolbar. Make a work around so it looks like the slider is in the toolbar instead. It is a bug in Apple's code.

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