объектов NSMutableArray становятся зомби

Question

я занимаюсь разработкой очень простой викториной приложения

В viewDidLoad я добавлять объекты в MyArray

где когда-либо я NSLog MyArray значения он работает отлично

но если я попробовать это внутри Методы ibaction все объекты становятся зомби

на 2 дня я застрял в этом, но не могу найти, что не так.

quiz.h

#import <UIKit/UIKit.h> 
#import <sqlite3.h> 

@class dbVals; 
@class viewTransition; 
@class AppDelegate; 

@interface quiz : UIViewController 
{ 
    NSMutableArray *myarray; 

    IBOutlet UITextView *questionTextView_; 

    IBOutlet UIButton *skipButton_; 

    IBOutlet UIButton *optionAButton_; 

    IBOutlet UIButton *optionBButton_; 

    IBOutlet UIButton *optionCButton_; 

    NSString *correctAnswer; 

    int questionNumber; 

    int score; 

    IBOutlet UILabel *scoreLabel_; 

    int totalQuestions; 

} 

-(void)populate:(int)number; 

//@property(nonatomic, retain) NSMutableArray *myarray; 

@property (retain, nonatomic) IBOutlet UITextView *questionTextView; 

@property (retain, nonatomic) IBOutlet UIButton *skipButton; 

@property (retain, nonatomic) IBOutlet UIButton *optionAButton; 

@property (retain, nonatomic) IBOutlet UIButton *optionBButton; 

@property (retain, nonatomic) IBOutlet UIButton *optionCButton; 

@property (retain, nonatomic) IBOutlet UILabel *scoreLabel; 

- (IBAction)optionsToAnswer:(id)sender; 

- (IBAction)zzz:(id)sender; 

@end 

quiz.m

#import "quiz.h" 
#import "DbVals.h" 
#import "viewTransition.h" 
#import "AppDelegate.h" 

@implementation quiz 
@synthesize skipButton=skipButton_; 
@synthesize optionAButton=optionAButton_; 
@synthesize optionBButton=optionBButton_; 
@synthesize optionCButton=optionCButton_; 
@synthesize scoreLabel=scoreLabel_; 
@synthesize questionTextView=questionTextView_; 

//@synthesize myarray; 

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil 
{ 
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; 
    if (self) { 
     // Custom initialization 
    } 
    return self; 
} 

- (void)didReceiveMemoryWarning 
{ 
    // Releases the view if it doesn't have a superview. 
    [super didReceiveMemoryWarning]; 

    // Release any cached data, images, etc that aren't in use. 
} 

#pragma mark - View lifecycle 

- (void)createEditableCopyOfDatabaseIfNeeded 
{ 
    //NSLog(@"Creating editable copy of database"); 
    // First, test for existence. 
    BOOL success; 
    NSFileManager *fileManager = [NSFileManager defaultManager]; 
    NSError *error; 
    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); 
    NSString *documentsDirectory = [paths objectAtIndex:0]; 
    NSString *writableDBPath = [documentsDirectory stringByAppendingPathComponent:@"oq.sqlite"]; 
    success = [fileManager fileExistsAtPath:writableDBPath]; 
    if (success) return; 
    // The writable database does not exist, so copy the default to the appropriate location. 
    NSString *defaultDBPath = [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:@"oq.sqlite"]; 
    success = [fileManager copyItemAtPath:defaultDBPath toPath:writableDBPath error:&error]; 
    if (!success) { 
     NSAssert1(0, @"Failed to create writable database file with message '%@'.", [error localizedDescription]); 
    } 
} 

+(sqlite3 *) getNewDBConnection 
{ 
    sqlite3 *newDBconnection; 
    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); 
    NSString *documentsDirectory = [paths objectAtIndex:0]; 
    NSString *path = [documentsDirectory stringByAppendingPathComponent:@"oq.sqlite"]; 
    // Open the database. The database was prepared outside the application. 
    if (sqlite3_open([path UTF8String], &newDBconnection) == SQLITE_OK) { 

     //NSLog(@"Database Successfully Opened "); 

    } else { 
     NSLog(@"Error in opening database "); 
    } 

    return newDBconnection; 
} 

- (void)viewDidLoad 
{ 
    [super viewDidLoad]; 

    questionNumber = 0; 

    score = 0; 

    [self createEditableCopyOfDatabaseIfNeeded];  

    sqlite3 *dbc = [quiz getNewDBConnection]; 

    sqlite3_stmt *statement = nil; 

    const char *sqlSelect = "select * from QnA ORDER BY RANDOM()"; 

    if(sqlite3_prepare_v2(dbc, sqlSelect, -1, &statement, NULL)!=SQLITE_OK) 
    { 
     NSAssert1(0, @"Error Preparing Statement", sqlite3_errmsg(dbc)); 
    } 
    else 
    { 
     myarray = [[NSMutableArray alloc]init]; 

     while(sqlite3_step(statement)==SQLITE_ROW) 
     { 
      NSString *q = [NSString stringWithUTF8String:(char *) sqlite3_column_text(statement, 0)]; 
      NSString *o = [NSString stringWithUTF8String:(char *) sqlite3_column_text(statement, 1)]; 
      NSString *a = [NSString stringWithUTF8String:(char *) sqlite3_column_text(statement, 2)]; 

      DbVals *dbValsObj = [[DbVals alloc]init];    
      [dbValsObj setValsOfQuestions:q options:o answer:a];     
      [myarray addObject:dbValsObj];    
      [dbValsObj release];   
     } 
    } 

    sqlite3_finalize(statement); 

    //[self populate:questionNumber]; 

} 

-(void)populate:(int)number 
{ 
    /*[scoreLabel_ setText:[NSString stringWithFormat:@"%d",score]]; 

    AppDelegate *appDel = [[UIApplication sharedApplication] delegate]; 
    [appDel setFinalScore:[NSString stringWithFormat:@"%d",score]]; 

    if(number < [myarray count]) 
    { 
     DbVals *dbv1 = [myarray objectAtIndex:number]; 

     [questionTextView_ setText:[dbv1 getQuestions]]; 

     NSString *joinedOptions = [dbv1 getOptions]; 

     NSArray *splitOptions = [joinedOptions componentsSeparatedByString:@","]; 
     [optionAButton_ setTitle:[splitOptions objectAtIndex:0] forState:UIControlStateNormal]; 
     [optionBButton_ setTitle:[splitOptions objectAtIndex:1] forState:UIControlStateNormal]; 
     [optionCButton_ setTitle:[splitOptions objectAtIndex:2] forState:UIControlStateNormal]; 

     correctAnswer = [dbv1 getAnswer]; 
    } 
    else 
    { 
     //viewTransition *vt = [[viewTransition alloc]init]; 
     [viewTransition viewsTransitionCurrentView:self toNextView:@"result"]; 
     //[vt release];  
    }*/ 
} 

- (void)viewDidUnload 
{ 
    for(int i=0; i<[myarray count]; i++) 
    { 
     DbVals *dbv1 = [myarray objectAtIndex:i]; 
     NSLog(@"%@",[dbv1 getQuestions]); 
     NSLog(@"%@",[dbv1 getOptions]); 
     NSLog(@"%@",[dbv1 getAnswer]); 
     NSLog(@"<u><u><u><u><><><><><><><><><><><>"); 
    } 

    [self setQuestionTextView:nil]; 
    [questionTextView_ release]; 
    questionTextView_ = nil; 
    [self setQuestionTextView:nil]; 
    [skipButton_ release]; 
    skipButton_ = nil; 
    [self setSkipButton:nil]; 
    [optionAButton_ release]; 
    optionAButton_ = nil; 
    [self setOptionAButton:nil]; 
    [optionBButton_ release]; 
    optionBButton_ = nil; 
    [self setOptionBButton:nil]; 
    [optionCButton_ release]; 
    optionCButton_ = nil; 
    [self setOptionCButton:nil]; 
    [scoreLabel_ release]; 
    scoreLabel_ = nil; 
    [self setScoreLabel:nil]; 
    [super viewDidUnload]; 
    // Release any retained subviews of the main view. 
    // e.g. self.myOutlet = nil; 
} 

- (void)dealloc 
{ 
    for(int i=0; i<[myarray count]; i++) 
    { 
     DbVals *dbv1 = [myarray objectAtIndex:i]; 
     NSLog(@"%@",[dbv1 getQuestions]); 
     NSLog(@"%@",[dbv1 getOptions]); 
     NSLog(@"%@",[dbv1 getAnswer]); 
     NSLog(@"<d><d><d><d><d><><><><><><><><><><>"); 
    } 

    [questionTextView_ release]; 

    [skipButton_ release]; 

    [optionAButton_ release]; 

    [optionBButton_ release]; 

    [optionCButton_ release]; 

    [scoreLabel_ release]; 

    [myarray release]; 

    [super dealloc]; 
} 

- (IBAction)optionsToAnswer:(id)sender 
{ 
    for(int i=0; i<[myarray count]; i++) 
    { 
     DbVals *dbv1 = [myarray objectAtIndex:i]; 
     NSLog(@"%@",[dbv1 getQuestions]); 
     NSLog(@"%@",[dbv1 getOptions]); 
     NSLog(@"%@",[dbv1 getAnswer]); 
     NSLog(@"six"); 
    } 


    if(sender == skipButton_) 
    { 
     //questionNumber++; 

     //[self populate:questionNumber]; 

     /*[UIView animateWithDuration:5 delay:0 options: UIViewAnimationCurveEaseOut 
     animations: 
     ^{ 
      [UIView setAnimationTransition:103 forView:self.view cache:NO]; 
     } 
     completion: 
     ^(BOOL finished) 
     {        
     } 
     ];*/ 
    } 

    if(sender == optionAButton_) 
    { 
     /*NSString *one = @"1"; 
     if([correctAnswer isEqualToString:one]) 
     { 
      score++; 
     } 
     questionNumber++; 
     [self populate:questionNumber];*/ 
    } 

    if(sender == optionBButton_) 
    { 
     /*NSString *two = @"2"; 
     if([correctAnswer isEqualToString:two]) 
     { 
      score++; 
     } 
     questionNumber++; 
     [self populate:questionNumber];*/ 
    } 

    if(sender == optionCButton_) 
    { 
     /*NSString *three = @"3"; 
     if([correctAnswer isEqualToString:three]) 
     { 
      score++; 
     } 
     questionNumber++; 
     [self populate:questionNumber];*/ 
    } 
} 

- (IBAction)zzz:(id)sender 
{ 
} 
@end 

dbVals.h

#import <Foundation/Foundation.h> 

@interface DbVals : NSObject 
{ 
    NSString *questions_; 
    NSString *options_; 
    NSString *answer_; 
    // NSString *hint; 
    // NSString *mode; 
} 

-(void)setValsOfQuestions:(NSString*)questions options:(NSString*)options answer:(NSString*)answer; 

-(NSString*)getQuestions; 
-(NSString*)getOptions; 
-(NSString*)getAnswer; 

dbVals.m

#import "DbVals.h" 

@implementation DbVals 

-(void)setValsOfQuestions:(NSString*)questions options:(NSString*)options answer:(NSString*)answer 
{ 
    questions_ = questions; 
    options_ = options; 
    answer_ = answer; 
} 

-(NSString*)getQuestions 
{ 
    return questions_; 
} 

-(NSString*)getOptions 
{ 
    return options_; 
} 

-(NSString*)getAnswer 
{ 
    return answer_; 
} 

@end 

Answer 1

Ваш dbVals.m setVals не сохраняет параметры. Это, очевидно, означает, что все внутреннее становится освобожденным после завершения функции. Попробуйте изменить его на что-то вроде

-(void)setValsOfQuestions:(NSString*)questions options:(NSString*)options answer:(NSString*)answer 
{ 
    [questions_ release]; 
    [options_ release]; 
    [answer_ release]; 
    questions_ = [questions copy]; 
    options_ = [options copy]; 
    answer_ = [answer copy]; 
}