Why is the "20% battery" message box crashing my app? [closed]

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overl开发者_如何学Goy broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center. Closed 11 years ago.

I work on a ipod apps, and when I run it on a real device, my apps crash when the msgbox 20$% battery left. How I can fix that? I think this msgbox stop one of my thread(a timer), is it possible?

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Does the same thing happen when the device receives a phone call, SMS, or push notification? If so, it's probably something in your app delegate’s -application:willResignActive: method. Check your code in there, or—better yet—update your question to include that code.