Crash only on iPad

Question

I have some animations in my screen. I am animating all of them through CAlayers using sprite sheets. I am downloading all the assets which sizes to 4 MB in viewDidAppear method.

I am able to show the animations on both simulators and on iPhone. But receiving memory warnings on iPad.

In my device crash reports it is showing exception type as

EXC_BAD_ACCESS(SIGSEGV)

I am animating using the following code:

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask, YES); NSString *documentsDirectory = [paths objectAtIndex:0]; NSString *getImagePath = [documentsDirectory stringByAppendingPathComponent:[NSString stringWithFormat:@"%@.png", imageNameStr]]; UIImage *img = [UIImage imageWithContentsOfFile:getImagePath];

CGImageRef richterImgPl1 = [UIImage imageWithContentsOfFile:getImagePath].CGImage;

NSArray *arrayWithSprites = [img spritesWithSpriteSheetImage:img
                                                  spriteSize:CGSizeMake(230,350)];

CGSize fixedSize = CGSizeMake(230, 350);
MCSpriteLayer *richterPl1 = [MCSpriteLayer layerWithImage:richterImgPl1 sampleSize:fixedSize] ;


richterPl1.frame = imgView.frame;
richterPl1.position = imgView.layer.position;

CABasicAnimation *anim = [CABasicAnimation animationWithKeyPath:@"sampleIndex"];
anim.fromValue = [NSNumber numberWithInt:1];
anim.toValue = [NSNumber numberWithInt:arrayWithSprites.count];
anim.duration = sleepTime;//[imgView.animationImages count] * 0.0500;
anim.repeatCount = 1;

[richterPl1 addAnimation:anim forKey:nil];
[self.view.layer addSublayer:richterPl1];

Any ideas or clues to get rid of this issue?

Try setting [exception breakpoint](http://stackoverflow.com/a/6434190/730701) in Xcode. It will show you the exact line which caused the crash. — Adam, Dec 08 '12 at 08:12
Try turning on NSZombie objects. Here is how : http://stackoverflow.com/questions/5386160/how-to-enable-nszombie-in-xcode — Mats, Dec 08 '12 at 09:19
@Adam i tried by adding the exception break point but no use. — Gani414, Dec 13 '12 at 08:22

score 0 · Accepted Answer · answered Dec 08 '12 at 09:59

0

you have to respond to that didReceiveMemory warning and free some resources or your app will be killed by the os which is this segfault you are getting

answered Dec 08 '12 at 09:59

Daij-Djan

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what do you want me to do in did receive memory warning. I canot release any resource till end of that show. Can you please explain me in detail. – Gani414 Dec 13 '12 at 08:24
why not? If(!visible) imageView.image = nil; – Daij-Djan Dec 13 '12 at 12:31

Crash only on iPad

1 Answers1