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POallocating and dismissing UIAlert w/spinner animation: crashes sometimes, doing it wrong?
 

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  1. POallocating and dismissing UIAlert w/spinner animation: crashes sometimes, doing it wrong?
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    <p>I'm creating an alert dialog with a spinner graphic.</p> <pre><code>UIAlertView *alert; //(at top of controller) alert = [[[UIAlertView alloc] initWithTitle:@"Looking for someone to connnect to via WiFi" message:nil delegate:self cancelButtonTitle:nil otherButtonTitles: nil] autorelease]; [alert show]; UIActivityIndicatorView *indicator = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge]; indicator.center = CGPointMake(alert.bounds.size.width / 2, alert.bounds.size.height - 50); [indicator startAnimating]; [alert addSubview:indicator]; [indicator release]; </code></pre> <p>And then it is later dismissed like this:</p> <pre><code>[alert dismissWithClickedButtonIndex:0 animated:YES]; </code></pre> <p>This occasionally results in a crash:</p> <pre><code>Sun Mar 7 12:01:29 unknown com.apple.SpringBoard[24] &lt;Notice&gt;: CoreAnimation: timed out fence 500 Sun Mar 7 12:01:29 unknown ReportCrash[1615] &lt;Notice&gt;: Formulating crash report for process someApp[1614] </code></pre> <p>and the trace:</p> <pre><code>Exception Type: EXC_CRASH (SIGABRT) Exception Codes: 0x00000000, 0x00000000 Crashed Thread: 0 Thread 0 Crashed: 0 libSystem.B.dylib 0x00090b2c __kill + 8 1 libSystem.B.dylib 0x00090b1a kill + 4 2 libSystem.B.dylib 0x00090b0e raise + 10 3 libSystem.B.dylib 0x000a7e34 abort + 36 4 libstdc++.6.dylib 0x00066390 __gnu_cxx::__verbose_terminate_handler() + 588 5 libobjc.A.dylib 0x00008898 _objc_terminate + 160 6 libstdc++.6.dylib 0x00063a84 __cxxabiv1::__terminate(void (*)()) + 76 7 libstdc++.6.dylib 0x00063afc std::terminate() + 16 8 libstdc++.6.dylib 0x00063c24 __cxa_throw + 100 9 libobjc.A.dylib 0x00006e54 objc_exception_throw + 104 10 CoreFoundation 0x00026b2c +[NSException raise:format:arguments:] + 76 11 CoreFoundation 0x00026acc +[NSException raise:format:] + 24 12 GameKit 0x00025a50 -[GKPeerPickerViewController _shouldShowConnectTypeView] + 124 13 GameKit 0x00026200 -[GKPeerPickerViewController loadInitialView] + 76 14 GameKit 0x000262a4 -[GKPeerPickerViewController loadView] + 108 15 UIKit 0x00069750 -[UIViewController view] + 44 16 GameKit 0x000263fc -[GKPeerPickerViewController show] + 204 17 GameKit 0x00023fbc -[GKPeerPickerController show] + 80 18 someApp 0x00002a0c -[someAppViewController btnConnect:] (someAppViewController.m:43) 19 CoreFoundation 0x00059888 -[NSObject performSelector:withObject:withObject:] + 20 20 UIKit 0x0005b77c -[UIApplication sendAction:to:from:forEvent:] + 128 21 UIKit 0x0005b6e4 -[UIApplication sendAction:toTarget:fromSender:forEvent:] + 32 22 UIKit 0x0005b6ac -[UIControl sendAction:to:forEvent:] + 44 23 UIKit 0x0005b304 -[UIControl(Internal) _sendActionsForEvents:withEvent:] + 528 24 UIKit 0x0005bf84 -[UIControl touchesEnded:withEvent:] + 452 25 UIKit 0x0005a8f8 -[UIWindow _sendTouchesForEvent:] + 520 26 UIKit 0x00059f8c -[UIWindow sendEvent:] + 108 27 UIKit 0x00055788 -[UIApplication sendEvent:] + 400 28 UIKit 0x0005508c _UIApplicationHandleEvent + 4528 29 GraphicsServices 0x000057dc PurpleEventCallback + 1044 30 CoreFoundation 0x00057524 CFRunLoopRunSpecific + 2296 31 CoreFoundation 0x00056c18 CFRunLoopRunInMode + 44 32 GraphicsServices 0x000041c0 GSEventRunModal + 188 33 UIKit 0x00003c28 -[UIApplication _run] + 552 34 UIKit 0x00002228 UIApplicationMain + 960 35 someApp 0x0000266e main (main.m:14) 36 someApp 0x00002604 start + 44 </code></pre> <p>One thing that's curious is the reference to GKPeerPicker, from GameKit; I'm not using it anywhere (I'm using GameKit's GKSession, but I'm not using the GKPeerPicker component).</p>
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