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POmemory issue when passing the cclayer to my objects
 

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  1. POmemory issue when passing the cclayer to my objects
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    <p>I've got a CCLayer where I want to add many buttons. I created the class MyButton with this init function:</p> <pre><code>-(id) initWithLayer:(MyLayer *)theLayer andDictionary:(NSDictionary *)data { self = [super init]; if (self != nil) { self.layer = theLayer; self.tag = [[data objectForKey:@"day"] intValue]; _layerZ = [[data objectForKey:@"z"] intValue]; _closedCard = [[CCSprite alloc] initWithFile:[data objectForKey:@"file"]]; _openedCardFile = [[NSString alloc] initWithString:[data objectForKey:@"open_card"]]; CCMenuItemImage *itemImage = [CCMenuItemImage itemFromNormalSprite:_closedCard selectedSprite:nil target:self selector:@selector(displayCard:)]; CGPoint position = CGPointFromString([data objectForKey:@"position"]); _position = ccp(position.x, position.y); itemImage.position = _position; itemImage.tag = self.tag; _theCardButton = [CCMenu menuWithItems:itemImage, nil]; _theCardButton.position = CGPointZero; [self.layer addChild:_theCardButton z:_layerZ]; } return self; </code></pre> <p>}</p> <p>This init function will add the buttons to the layer and I'm managing all the behaviour (movements, image changes) in the MyButton class.</p> <p>So the layer is being sent to all the MyButton instances. The layer won't call the dealloc method until each button is released.</p> <p>These buttons are being added to the layer through an array:</p> <pre><code>_buttons = [[NSMutableArray alloc] init]; for (NSDictionary *buttonData in buttonsArray) { MyButton *btn = [[MyButton alloc] initWithLayer:self andDictionary:buttonData]; [_buttons addObject:btn]; [btn release]; } </code></pre> <p>My problem is that when I replace this scene, the dealloc methos of MyButton is not being called and the memory is not being released, cause the [_buttons release] is in the dealloc method of the layer, which is not being called either, cause the layer has been passed to each button.</p> <p>It's a mess. Can anyone tell me the best way for fixing this memory problem?</p> <p>-- edit</p> <p>If I try to release the array of buttons manually before calling the replaceScene, each button calls the dealloc, but then I get this error message:</p> <pre><code>[CCMenu pauseSchedulerAndActions]: message sent to deallocated instance 0x131a0670 </code></pre>
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    1. COYou created a retain cycle. Do not pass in layer in init. If the layer is the node's parent, you can use the parent property. In all other situations consider making the layer a singleton class.
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      1. POmemory issue when passing the cclayer to my objects
      1. USLearnCocos2D
 

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