I'm encountering a difficult to debug issue with a static library project when attempting to animate a view.
It works fine when debugging (and even when debugging in the release configuration), but throws an error archived as a release:
Exception Type: EXC_CRASH (SIGSYS)
Exception Codes: 0x00000000, 0x00000000
Crashed Thread: 0
Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0 TestApp 0x000d04fc 0x91000 + 259324
1 UIKit 0x336d777e +[UIView(UIViewAnimationWithBlocks) animateWithDuration:animations:] + 42
2 TestApp 0x000d04de 0x91000 + 259294
3 TestApp 0x000d0678 0x91000 + 259704
4 Foundation 0x355f04f8 __57-[NSNotificationCenter addObserver:selector:name:object:]_block_invoke_0 + 12
5 CoreFoundation 0x35aae540 ___CFXNotificationPost_block_invoke_0 + 64
6 CoreFoundation 0x35a3a090 _CFXNotificationPost + 1400
7 Foundation 0x355643e4 -[NSNotificationCenter postNotificationName:object:userInfo:] + 60
8 UIKit 0x33599112 -[UIInputViewTransition postNotificationsForTransitionStart] + 846
9 UIKit 0x335988cc -[UIPeripheralHost(UIKitInternal) executeTransition:] + 880
10 UIKit 0x3351bb8c -[UIPeripheralHost(UIKitInternal) setInputViews:animationStyle:] + 304
11 UIKit 0x3351b260 -[UIPeripheralHost(UIKitInternal) _reloadInputViewsForResponder:] + 952
12 UIKit 0x3351ae54 -[UIResponder(UIResponderInputViewAdditions) reloadInputViews] + 160
13 UIKit 0x3351a990 -[UIResponder becomeFirstResponder] + 452
14 UIKit 0x336194a0 -[UITextInteractionAssistant setFirstResponderIfNecessary] + 168
15 UIKit 0x33618d6a -[UITextInteractionAssistant oneFingerTap:] + 1602
16 UIKit 0x33618630 _UIGestureRecognizerSendActions + 100
17 UIKit 0x335a8d5e -[UIGestureRecognizer _updateGestureWithEvent:] + 298
18 UIKit 0x337d9472 ___UIGestureRecognizerUpdate_block_invoke_0541 + 42
19 UIKit 0x33524f4e _UIGestureRecognizerApplyBlocksToArray + 170
20 UIKit 0x33523a9c _UIGestureRecognizerUpdate + 892
21 UIKit 0x335307e2 _UIGestureRecognizerUpdateGesturesFromSendEvent + 22
22 UIKit 0x33530620 -[UIWindow _sendGesturesForEvent:] + 768
23 UIKit 0x335301ee -[UIWindow sendEvent:] + 82
24 UIKit 0x3351668e -[UIApplication sendEvent:] + 350
25 UIKit 0x33515f34 _UIApplicationHandleEvent + 5820
26 GraphicsServices 0x376d5224 PurpleEventCallback + 876
27 CoreFoundation 0x35ab651c __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 32
28 CoreFoundation 0x35ab64be __CFRunLoopDoSource1 + 134
29 CoreFoundation 0x35ab530c __CFRunLoopRun + 1364
30 CoreFoundation 0x35a3849e CFRunLoopRunSpecific + 294
31 CoreFoundation 0x35a38366 CFRunLoopRunInMode + 98
32 GraphicsServices 0x376d4432 GSEventRunModal + 130
33 UIKit 0x33544cce UIApplicationMain + 1074
Thread 0 crashed with ARM Thread State:
r0: 0x0000004e r1: 0x000d04f8 r2: 0x338fed47 r3: 0x3f523340
r4: 0x00000000 r5: 0x2fe8da00 r6: 0x00000001 r7: 0x2fe8d9d0
r8: 0x3f54cad0 r9: 0x00000000 r10: 0x3fd00000 r11: 0x3f523310
ip: 0x3f497048 sp: 0x2fe8d988 lr: 0x33539a41 pc: 0x000d04fc
cpsr: 0x60000010
To give some background info:
The static library is part of an 'iOS fake-framework', built using the templates from here:
https://github.com/kstenerud/iOS-Universal-Framework
The framework presents a registration UI as a modal view on top of whatever the client application is doing at the time. It pushes these views using a handle to a UIViewController provided by the client application.
It doesn't do anything special, but here's the animation code:
-(void)keyboardWillShowNotification:(NSNotification *)notification
{
double animationDuration = [[[notification userInfo] objectForKey:UIKeyboardAnimationDurationUserInfoKey] doubleValue];
dispatch_async(dispatch_get_main_queue(), ^(void) {
[self animateViewsToState:kUMAnimationStateKeyboardVisible forIdiom:[UIDevice currentDevice].userInterfaceIdiom forDuration:animationDuration];
});
}
-(void)animateViewsToState:(kUMAnimationState)state forIdiom:(UIUserInterfaceIdiom)idiom forDuration:(double)duration
{
float fieldOffset;
if (idiom == UIUserInterfaceIdiomPhone) {
if (state == kUMAnimationStateKeyboardVisible) {
fieldOffset = -KEYBOARD_HEIGHT_IPHONE_PORTRAIT;
} else {
fieldOffset = KEYBOARD_HEIGHT_IPHONE_PORTRAIT;
}
} else {
if (state == kUMAnimationStateKeyboardVisible) {
fieldOffset = -IPAD_FIELD_OFFSET;
} else {
fieldOffset = IPAD_FIELD_OFFSET;
}
}
[UIView animateWithDuration:duration animations:^(void) {
mUserNameField.frame = CGRectOffset(mUserNameField.frame, 0, fieldOffset);
mUserPasswordField.frame = CGRectOffset(mUserPasswordField.frame, 0, fieldOffset);
}];
}
Further printf-style debugging shows that it crashes whenever I do anything much with UIKit - specifically, it crashes when I replace -animateViewsToState with:
if (0 == UIUserInterfaceIdiomPhone) {
NSLog(@"");
}
and
[[[[UIAlertView alloc] initWithTitle:@"test" message:@"123" delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil] autorelease] show];
To me, this sounds like a linker problem, but I don't understand how such problems would only manifest here, and not beforehand.
Any help would be greatly appreciated.
