A和发行对象

这里我的代码A和发行对象

- (UIImageView *)createImageView:(NSUInteger)inImageIndex 
{ 
    UIImageView * result = [[UIImageView alloc] initWithImage:[mImages objectAtIndex:inImageIndex]]; 
    result.opaque = YES; 
    result.userInteractionEnabled = NO; 
    result.backgroundColor = [UIColor blackColor]; 
    result.contentMode = UIViewContentModeScaleAspectFit; 
    result.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight; 
    return [result autorelease]; 
}

问题这种方法由init 3次电话，但不是错误当我尝试刷卡图像此方法将再次调用并得到了一些错误

objc [962]：FREED（ID）：发送到释放对象消息释放= 0x3b37860

注意：如果我不释放导致它不会错误，但我会得到一些内存泄漏

我该如何解决它？

- (id)initWithImages:(NSMutableArray *)inImages byIndex:(int)Index 
{ 
    PictureCell* data = [PictureCell alloc]; 
    NSLog(@"get index = %d", [data getIndex]); 
    int cellIndex = [data getIndex]; 
    mCurrentImage = Index * 3 + cellIndex; 
    Index = mCurrentImage; 

    if (self = [super initWithFrame:CGRectZero]) 
    { 
     mImages = [inImages retain]; 
     NSUInteger imageCount = [inImages count]; 
     if (Index == 0) { 
      mCurrentImageView = [self createImageView:0]; 
      [self addSubview:mCurrentImageView]; 
      mRightImageView = [self createImageView:1]; 
      [self addSubview:mRightImageView]; 

     } 
     else if (Index == (imageCount-1)) { 
      mCurrentImageView = [self createImageView:imageCount-1]; 
      [self addSubview:mCurrentImageView]; 
      mLeftImageView = [self createImageView:(imageCount-2)]; 
      [self addSubview:mLeftImageView]; 

     } 
     else { 
      mLeftImageView = [self createImageView:(Index-1)]; 
      [self addSubview:mLeftImageView]; 

      mCurrentImageView = [self createImageView:Index]; 
      [self addSubview:mCurrentImageView]; 

      mRightImageView = [self createImageView:(Index+1)]; 
      [self addSubview:mRightImageView]; 

     } 
     self.opaque = YES; 
     self.backgroundColor = [UIColor blackColor]; 
     self.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight; 
    } 
    [data autorelease]; 
    return self; 
}

这里是从另一个类创建数组并发送至mImages = [inImages保留]

NSMutableArray *images = [NSMutableArray arrayWithObjects:[UIImage imageNamed:@"JGirl 01.jpg"], 
[UIImage imageNamed:@"JGirl 03.jpg"],[UIImage imageNamed:@"JGirl 04.jpg"],[UIImage imageNamed:@"JGirl 05.jpg"],[UIImage imageNamed:@"JGirl 06.jpg"],[UIImage imageNamed:@"JGirl 07.jpg"],nil]; 

self.view = [[[SlideShowView alloc] initWithImages:images byIndex:index] autorelease];

全码

static NSUInteger mCurrentImage; 
static NSString *title[] = { 
    @"JGirl 01.jpg", 
    @"JGirl 03.jpg", 
    @"JGirl 04.jpg", 
    @"JGirl 05.jpg", 
    @"JGirl 06.jpg", 
    @"JGirl 07.jpg", 
    @"JGirl 08.jpg", 
    @"JGirl 09.jpg", 
    @"JGirl 10.jpg", 
}; 

static BOOL toggle = YES; 
@implementation SlideShowView 
@synthesize AppDelegate; 

- (UIImageView *)createImageView:(NSUInteger)inImageIndex 
{ 
    if (inImageIndex >= [mImages count]) 
    { 
     return nil; 
    } 

    UIImageView * result = [[UIImageView alloc] initWithImage:[mImages objectAtIndex:inImageIndex]]; 
    result.opaque = YES; 
    result.userInteractionEnabled = NO; 
    result.backgroundColor = [UIColor blackColor]; 
    result.contentMode = UIViewContentModeScaleAspectFit; 
    result.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight; 
    return [result autorelease]; 
} 

- (id)initWithImages:(NSMutableArray *)inImages byIndex:(int)Index 
{ 
    PictureCell* data = [PictureCell alloc]; 
    NSLog(@"get index = %d", [data getIndex]); 
    int cellIndex = [data getIndex]; 
    mCurrentImage = Index * 3 + cellIndex; 
    Index = mCurrentImage; 

    if (self = [super initWithFrame:CGRectZero]) 
    { 
     mImages = [inImages retain]; 

     NSUInteger imageCount = [inImages count]; 

     if (Index == 0) { 
      mCurrentImageView = [self createImageView:0]; 
      [self addSubview:mCurrentImageView]; 
      mRightImageView = [self createImageView:1]; 
      [self addSubview:mRightImageView]; 

     } 
     else if (Index == (imageCount-1)) { 
      mCurrentImageView = [self createImageView:imageCount-1]; 
      [self addSubview:mCurrentImageView]; 
      mLeftImageView = [self createImageView:(imageCount-2)]; 
      [self addSubview:mLeftImageView]; 

     } 
     else { 
      mLeftImageView = [self createImageView:(Index-1)]; 
      [self addSubview:mLeftImageView]; 

      mCurrentImageView = [self createImageView:Index]; 
      [self addSubview:mCurrentImageView]; 

      mRightImageView = [self createImageView:(Index+1)]; 
      [self addSubview:mRightImageView]; 

     } 
     self.opaque = YES; 
     self.backgroundColor = [UIColor blackColor]; 
     self.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight; 

    } 
    [data autorelease]; 
    return self; 
} 

- (void)dealloc 
{ 
    [mImages release]; 
    [AppDelegate release]; 
    [super dealloc]; 
} 



- (void)layoutSubviews 
{ 
    if (mSwiping) 
     return; 

    CGSize contentSize = self.frame.size; 
    mLeftImageView.frame = CGRectMake(-contentSize.width, 0.0f, contentSize.width, contentSize.height); 
    mCurrentImageView.frame = CGRectMake(0.0f, 0.0f, contentSize.width, contentSize.height); 
    mRightImageView.frame = CGRectMake(contentSize.width, 0.0f, contentSize.width, contentSize.height); 
} 

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event 
{ 
    UITouch *touch = [touches anyObject]; 
    NSUInteger tapCount = [touch tapCount]; 
    switch (tapCount) { 
     case 2: 
     { 
      AppDelegate = [[UIApplication sharedApplication] delegate]; 
      if (toggle) { 
       [AppDelegate.navigationController setNavigationBarHidden:YES animated:YES]; 
      } 
      else { 
       [AppDelegate.navigationController setNavigationBarHidden:NO animated:YES]; 
      } 

      toggle = !toggle; 
      break; 
     } 
     default: 
      break; 
    } 

    NSLog(@"touches count = %d and Tap count = %d from slide show view toggle is %i",[touches count], tapCount,toggle); 

    if ([touches count] != 1) 
     return; 

    mSwipeStart = [[touches anyObject] locationInView:self].x; 
    mSwiping = YES; 

    mLeftImageView.hidden = NO; 
    mCurrentImageView.hidden = NO; 
    mRightImageView.hidden = NO; 

} 

- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event 
{ 
    if (! mSwiping || [touches count] != 1) 
     return; 

    CGFloat swipeDistance = [[touches anyObject] locationInView:self].x - mSwipeStart; 

    CGSize contentSize = self.frame.size; 

    mLeftImageView.frame = CGRectMake(swipeDistance - contentSize.width, 0.0f, contentSize.width, contentSize.height); 
    mCurrentImageView.frame = CGRectMake(swipeDistance, 0.0f, contentSize.width, contentSize.height); 
    mRightImageView.frame = CGRectMake(swipeDistance + contentSize.width, 0.0f, contentSize.width, contentSize.height); 
} 

- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event 
{ 
    if (! mSwiping) 
    { 
     return; 
    } 

    CGSize contentSize = self.frame.size; 

    NSUInteger count = [mImages count]; 

    CGFloat swipeDistance = [[touches anyObject] locationInView:self].x - mSwipeStart; 
    if (mCurrentImage > 0 && swipeDistance > 50.0f) 
    { 
     [mRightImageView removeFromSuperview]; 
     [mRightImageView release]; 

     mRightImageView = mCurrentImageView; 
     mCurrentImageView = mLeftImageView; 

     mCurrentImage--; 
     if (mCurrentImage > 0) 
     { 
      mLeftImageView = [self createImageView:mCurrentImage - 1]; 
      mLeftImageView.hidden = YES; 

      [self addSubview:mLeftImageView]; 
     } 
     else 
     { 
      mLeftImageView = nil; 
     } 
    } 
    else if (mCurrentImage < count - 1 && swipeDistance < -50.0f) 
    { 
     [mLeftImageView removeFromSuperview]; 
     [mLeftImageView release]; 

     mLeftImageView = mCurrentImageView; 
     mCurrentImageView = mRightImageView; 

     mCurrentImage++; 
     if (mCurrentImage < count - 1) 
     { 
      mRightImageView = [self createImageView:mCurrentImage + 1]; 
      mRightImageView.hidden = YES; 

      [self addSubview:mRightImageView]; 
     } 
     else 
     { 
      mRightImageView = nil; 
     } 
    } 

    [UIView beginAnimations:@"swipe" context:NULL]; 
    [UIView setAnimationCurve:UIViewAnimationCurveEaseOut]; 
    [UIView setAnimationDuration:0.3f]; 

    mLeftImageView.frame = CGRectMake(-contentSize.width, 0.0f, contentSize.width, contentSize.height); 
    mCurrentImageView.frame = CGRectMake(0.0f, 0.0f, contentSize.width, contentSize.height); 
    mRightImageView.frame = CGRectMake(contentSize.width, 0.0f, contentSize.width, contentSize.height); 
    mSwiping = NO; 
    [UIView commitAnimations]; 

} 


@end // SlideShowView 

@implementation SlideShowViewController 
@synthesize contentView; 

- (id)init:(int) index 
{ 
    if (self = [super initWithNibName:nil bundle:nil]) 
    { 

     NSMutableArray *images = [NSMutableArray arrayWithObjects: 
          [UIImage imageNamed:@"JGirl 01.jpg"], 
          [UIImage imageNamed:@"JGirl 03.jpg"], 
          [UIImage imageNamed:@"JGirl 04.jpg"], 
          [UIImage imageNamed:@"JGirl 05.jpg"], 
          [UIImage imageNamed:@"JGirl 06.jpg"], 
          [UIImage imageNamed:@"JGirl 07.jpg"], 
          [UIImage imageNamed:@"JGirl 08.jpg"], 
          [UIImage imageNamed:@"JGirl 09.jpg"], 
          [UIImage imageNamed:@"JGirl 10.jpg"],nil 
          ]; 


     self.view = [[[SlideShowView alloc] initWithImages:images byIndex:index] autorelease]; 

     UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect]; 

     button.frame = CGRectMake(100, 0, 100, 30); 
     self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemSave target:self action:@selector(save)]; 

    } 

    return self; 
} 

- (void)loadView 
{ 

} 

- (void)viewWillAppear:(BOOL)animated 
{ 
    NSLog(@"mCurrentImage %d",mCurrentImage); 

} 

- (void)save 
{ 
    NSLog(@"save clicked"); 
    UIImage *img = [UIImage imageNamed:title[mCurrentImage]]; 
    UIImageWriteToSavedPhotosAlbum(img, self, @selector(image:didFinishSavingWithError:contextInfo:), self); 

    [img release]; 
} 

- (void)image:(UIImage *)image didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextInfo{ 
    NSString *str = @"Wallpaper saved in Photo Albums successfully. Hit the Home Button and open Photo, select the wallpaper and chose the function Set as Use as Wallpaper."; 
    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Saved." message:str delegate:self cancelButtonTitle:nil otherButtonTitles:@"OK", nil]; 
    [alert show]; 
} 


@end

来源

2009-11-19 RAGOpoR

你可以发布代码在哪里创建mImages数组并正确地格式化代码？ – FelixLam 2009-11-19 10:53:56

不要发布AppDelegate – nduplessis 2009-11-20 06:12:44

AppDelegate = [[UIApplication sharedApplication] delegate]; 是这段代码保留我认为它分配了一些对象 – RAGOpoR 2009-11-20 08:09:47

UPDATE：你不应该释放的AppDelegate变量，因为你永远不会保留实例，你只需指定它

您能否为您显示init方法的类显示dealloc方法？

mCurrentImageView
mRightImageView
mLeftImageView

是实例变量，你是给他们分配自动释放的对象。如果您还发布了在你的dealloc方法，这些实例变量，你会释放双

其实我可以告诉你，现在来处理这个正确的方法是

mCurrentImageView = [[self createImageView:0] retain];

既然你那些分配到高德你想确保你坚持到他们，直到你完成。

来源

2009-11-19 11:16:33 nduplessis

Felix L.请求我为方法 – RAGOpoR 2009-11-19 11:19:02

我不是在寻找创建阵列的方法，我正在寻找dealloc方法 – nduplessis 2009-11-19 11:22:07

- （void）dealloc { \t [mImages release]; \t [AppDelegate release]; \t [super dealloc]; } – RAGOpoR 2009-11-19 11:27:24

A和发行对象

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