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POError when subclassing NSObject: "EXC_BAD_ACCESS"
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  1. POError when subclassing NSObject: "EXC_BAD_ACCESS"
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    copied!<p>I'm trying to create a class called HighscoresController which subclasses NSObject. When I call <code>init</code> method in the following manner, I get an error in the debugger <code>GDB: Program received signal: "EXC_BAD_ACCESS"</code>. Does anyone have any idea why? I'm completely stumped.</p> <pre><code>// Initialize the highscores controller _highscoresController = [[HighscoresController alloc] init]; </code></pre> <p>Here's my class implementation:</p> <pre><code>#import "HighscoresController.h" #import "Constants.h" @implementation HighscoresController @synthesize highscoresList = _highscoresList; - (id) init { self = [super init]; _highscoresList = [[NSMutableArray alloc] initWithCapacity:kHighscoresListLength]; int kMyListNumber = 0; NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsDirectory = [paths objectAtIndex:0]; NSString *filePath = [documentsDirectory stringByAppendingPathComponent:@"highscores.plist"]; if ([[NSFileManager defaultManager] fileExistsAtPath:filePath]) { // if settings file exists NSArray *HighscoresListOfLists = [[NSArray alloc] initWithContentsOfFile:filePath]; _highscoresList = [HighscoresListOfLists objectAtIndex:kMyListNumber]; [HighscoresListOfLists release]; } else { // if no highscores file, create a new one NSMutableArray *array = [[NSMutableArray alloc] init]; [array addObject:_highscoresList]; [array writeToFile:filePath atomically:YES]; [array release]; } [_highscoresList addObject:[NSNumber numberWithFloat:0.0f]]; return self; } - (void) addScore:(float)score { // Implementation } - (BOOL) isScore:(float)score1 betterThan:(float)score2 { if (score1 &gt; score2) return true; else return false; } - (BOOL) checkScoreAndAddToHighscoresList:(float)score { NSLog(@"%d",[_highscoresList count]); if ([_highscoresList count] &lt; kHighscoresListLength) { [self addScore:score]; [self saveHighscoresList]; return true; } else { NSNumber *lowScoreNumber = [_highscoresList objectAtIndex:[_highscoresList count]-1]; float lowScore = [lowScoreNumber floatValue]; if ([self isScore:score betterThan:lowScore]) { [self addScore:score]; [self saveHighscoresList]; return true; } } return false; } - (void) saveHighscoresList { // Implementation } - (void) dealloc { [_highscoresList release]; _highscoresList = nil; [super dealloc]; } @end </code></pre>
 

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