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POCocos2D application with menu and sprites crashing with EXC_BAD_ACCESS
 

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  1. POCocos2D application with menu and sprites crashing with EXC_BAD_ACCESS
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    <p>I always used ARC but my cocos2d template doesn't use ARC, to I have to use the manual ref counting and that's probably why I crash.<br> The goal is to make a menu with two labels, if I click to a label, I show an image with a sprite.If I click on the image, I can go back to the menu and choose again.<br> This is the CCLayer class: </p> <pre><code>-(id) init { if( (self=[super init])) { CCMenuItemLabel* item1, *item2; CCLabelTTF* label1= [CCLabelTTF labelWithString: @"Shark Icon" fontName: @"Arial" fontSize: 30], *label2; label2= [CCLabelTTF labelWithString: @"Cocos2D Icon" fontName: @"Arial" fontSize: 30]; label1.color= ccRED; label2.color= ccRED; [label1 retain]; [label2 retain]; item1=[CCMenuItemLabel itemWithLabel: label1 block:^(id sender) { NSLog(@"Clicked shark icon"); [self removeChild: menu cleanup: NO]; shark=[CCSprite spriteWithFile: @"shark.jpeg"]; [shark setPosition: CGPointMake(150, 200)]; [self addChild: shark]; [[CCTouchDispatcher sharedDispatcher] addTargetedDelegate: self priority: 0 swallowsTouches: YES]; }]; item2= [CCMenuItemLabel itemWithLabel: label2 block:^(id sender) { NSLog(@"Clicked cocos2d icon"); [self removeChild: menu cleanup: NO]; icon=[CCSprite spriteWithFile: @"icon.png"]; [icon setPosition: CGPointMake(150, 200)]; [self addChild: icon]; [[CCTouchDispatcher sharedDispatcher] addTargetedDelegate: self priority: 0 swallowsTouches: YES]; }]; [item1 retain]; [item2 retain]; menu=[CCMenu menuWithItems: item1,item2, nil]; [menu alignItemsVertically]; [self addChild: menu]; } return self; } - (BOOL) ccTouchBegan:(UITouch *)touch withEvent:(UIEvent *)event { [[CCTouchDispatcher sharedDispatcher] removeDelegate: self]; [self removeChild: shark cleanup: NO]; [self addChild: menu]; return YES; } </code></pre> <p><strong>What happens:</strong> I click on "Shark Icon" (or "Cocos2D Icon"), then the shark image appears,if I click on it I get EXC_BAD_ACCESS: </p> <pre><code>EXC_BAD_ACCESS (code=1, address= 0x70Baafc8) </code></pre> <p>I tried to print all addresses (menu, item1,etc...), and no one of the items has this address.Sometimes I even get an invalid address like 0x00000008 .</p> <p><strong>EDIT</strong></p> <p>I would solve the problem by just retaining menu, but I haven't understood why: menu is already retained: </p> <pre><code>@property (nonatomic, retain) CCSprite* shark; @property (nonatomic, retain) CCSprite* icon; @property (nonatomic, retain) CCMenu* menu; </code></pre> <p>If I enable zombies I get this: </p> <pre><code>*** -[CCMenu tag]: message sent to deallocated instance 0x7c71a10 </code></pre> <p>So menu is a zombie but shouldn't the retain property make it be retained?<br> The strange thing is that I don't need to retain shark and icon, just menu.</p>
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    1. USRamy Al Zuhouri
    1. USRamy Al Zuhouri
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    1. COset a brakepoint on ccTouchBegan so you know on which line your code crash
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      1. USChakalaka
    2. COWhen I add the menu as child crashes, I would solve this by just retaining menu, **but I haven't understood why**.In the properties menu is nonatomic, retain, it should be already retained.
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      1. POCocos2D application with menu and sprites crashing with EXC_BAD_ACCESS
      1. USRamy Al Zuhouri
    3. COyes but only if you use the property! you use only the pointer. so make self.menu =
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      1. USChakalaka
 

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