Question

I have a UILabel in my class header file defined as :

 `@property (nonatomic, retain) UILabel *label1;` 

and it exists as instance variable like this:

 `UILabel *label1;` 

and synthesized in the .m file, however, in viewDidLoad method I do:

 `label1 = [UILabel alloc] init] autorelease];`

then I do various things on the label like setting its frame, text color, etc …
when the view controller is deallocated, the app crashes with this message in console

 (Zombies enabled): `[CALayer release] message sent to deallocated instance` ...

The app will not crash when I :

1) remove the autorelease word .. or

2) if i do not release label1 in the dealloc method .. or

3) remove [super dealloc]; from the dealloc method of the view controller.

how can I properly release this UILabel without facing such crash !!

Answer 1

strangely enough, when I used self.label1 = [[[UILabel alloc] init]autorelease]; instead of label1 = [[[UILabel alloc] init] autorelease]; solved the problem. the dealloc method remains as is without any change. really weird !!