UIImageView crash in [UIImageView isAnimating]

Question

Created Apr ’21

Replies 3

Boosts 0

Views 1.3k

Participants 3

Hi,

I see for a certain low percentage of usage a crash in a routine that is dispatched async to the main thread - for multiple iOS Versions. Has anybody an idea what might be the reason?

Thanks!

Code Block EXC_BAD_ACCESS KERN_INVALID_ADDRESS 0x0000000a275a9dec
 libobjc.A.dylib                0x1a005a2e4 objc_opt_class + 16
1  UIKitCore                      0x18ded3408 -[UIImageView isAnimating] + 48
2  UIKitCore                      0x18ded37f8 -[UIImageView setBackgroundColor:] + 56
3  SomeApp                        0x1042abc10 -[SomeView updateViewWithImage] + yyy (SomeView.m:yyy)

Code Block - (void) updateViewWithImage {}
     //  Lots of geometry calculation removed
     
	 if (_logoView && self.logoImage) {
        // crash here: 
		_logoView.backgroundColor = [UIColor clearColor]; 
		_logoView.frame = CGRectMake(0, round((self.frame.size.height - imgHeight) / 2), round(imgWidth), round(imgHeight));
		_logoView.image = self.logoImage;
	}
}

Boost

Answer 1

Claude31 OP

Apr ’21

If you remove _logoView.backgroundColor = [UIColor clearColor];

Code Block 	 if (_logoView && self.logoImage) {
        // crash here: 
		_logoView.backgroundColor = [UIColor clearColor];

Does the app crash on next instruction ?

Could you show how you launch animation ?

0

Answer 2

TH0MAS OP

Apr ’21

The UIImage is just a plain [UIImage imageWithData:...] generated in a background thread, the UI update is dispatched to the main thread.
I couldn't reproduce it yet. The code is run on every app execution, the probability to have this crash seems to be 1:5000.

0

Answer 3

DTS Engineer OP

Apple

Apr ’21

I see for a certain low percentage of usage a crash in a routine that
is dispatched async to the main thread

Please post a full Apple crash report for this. Use the text attachment feature (the paperclip icon) to avoid clogging up the timeline.

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