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POMemory management problem (release UIVIewCotroller)
 

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  1. POMemory management problem (release UIVIewCotroller)
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    <p>I develop the game for iPad (composing image from puzzles). In my menu i choose level difficult (simple, medium or hard). After selecting the main playing field will be shown. Here's place, where i create the main playing field:</p> <pre><code>- (void)simpleDiffButtonClicked:(id)sender { UIButton *button = sender; if (simpleDiffButton == button) { UIView *mySuperView = self.view.superview; mainGame = [[MainGame alloc] initWithMode:1 andImage:nil]; //mainGame variable is declared in header file like: MainGame *mainGame; mainGame.view.frame = CGRectMake(0, 0, 1024, 768); [mySuperView addSubview: mainGame.view]; } </code></pre> <p>}</p> <p>After this playing field is appears (there are a lot of sublayers adding to self.view.layer) and i can interact with it. When i want to quit from it, i click button "back". (here i want to release my viewcontroller)</p> <pre><code>- (void)backToMenuButtonClicked:(id)sender { UIButton *button = sender; if (nextImageClick == YES) { return; } if (backToMenuButton == button) { self.view.layer.sublayers = nil; //here's an exception [self.view removeFromSuperview]; } } </code></pre> <p>After clicking "back" button everything is ok. And i can choose difficultly level again. A choose a level, and after it clicking "back" button again and at this place application crashes (EXC_BAD_ACCESS). As i understand "<strong>self.view.layer.sublayers = nil</strong>" causes the exception. Without it everything is ok. But memory is leaking. And after several minutes of playing app was crashes (memory warning 2). I cannot solve the problem for about a week. I don't understand what to do to release my viewcontroller (or i need to release all sublayers in controller?).</p> <p>Please, someone help me. Thanks in advance.</p>
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