受信したメモリ警告。レベル= 2、プログラム受信信号： "0"

Question

こんにちは私はwebservicesから画像を取得していて、テーブルビューでこれらの画像を読み込んでいますが、スクロールを続けるとメモリ警告level1、level2を受け取り、アプリケーションはステータス0それはシミュレータにないデバイスでのみ起こります。 私のコードは私が私を助けてください置いています。私は間違いをしています

- (void)viewDidLoad { 
    [super viewDidLoad]; 

    UIButton *infoButton = [[UIButton alloc] initWithFrame:CGRectMake(0, -4, 62, 30)]; 
    [infoButton setBackgroundImage:[UIImage imageNamed: @"back.png"] forState:UIControlStateNormal]; 
    [infoButton addTarget:self action:@selector(backButtonClicked) forControlEvents:UIControlEventTouchUpInside]; 
    UIBarButtonItem *customBarButtomItem = [[UIBarButtonItem alloc] initWithCustomView:infoButton]; 
    self.navigationItem.leftBarButtonItem = customBarButtomItem; 
    [customBarButtomItem release]; 
    [infoButton release]; 

    UIButton *homeButton = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 62, 30)]; 
    [homeButton setBackgroundImage:[UIImage imageNamed: @"home.png"] forState:UIControlStateNormal]; 
    [homeButton.titleLabel setFont:[UIFont systemFontOfSize:11]]; 
    //[homeButton setTitle:@"UPLOAD" forState:UIControlStateNormal]; 
    [homeButton addTarget:self action:@selector(homeButtonClicked) forControlEvents:UIControlEventTouchUpInside]; 
    UIBarButtonItem *rightBarButtom = [[UIBarButtonItem alloc] initWithCustomView:homeButton]; 
    self.navigationItem.rightBarButtonItem = rightBarButtom; 
    [rightBarButtom release]; 
    [homeButton release]; 

    sellerTableView=[[UITableView alloc]initWithFrame:CGRectMake(0, 0, 320, 416) style:UITableViewStylePlain]; 
    sellerTableView.delegate=self; 
    sellerTableView.dataSource=self; 
    sellerTableView.backgroundColor=[UIColor clearColor]; 
    sellerTableView.scrollEnabled=YES; 
    //table.separatorColor=[UIColor grayColor]; 
    //table.separatorColor=[UIColor whiteColor]; 
    //[[table layer]setRoundingMode:NSNumberFormatterRoundDown]; 
    [[sellerTableView layer]setBorderColor:[[UIColor darkGrayColor]CGColor]]; 
    [[sellerTableView layer]setBorderWidth:2]; 
    //[[productTable layer]setCornerRadius:10.3F]; 
    [self.view addSubview:sellerTableView]; 

    appDel = (SnapItAppAppDelegate*)[[UIApplication sharedApplication] delegate]; 



} 

-(void)viewWillAppear:(BOOL)animated 
{ 


    spinner = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleGray]; 
    spinner.center = self.view.center; 
    [self.view addSubview:spinner]; 
    [spinner startAnimating]; 
    [[SnapItParsing sharedInstance]assignSender:self]; 
    [[SnapItParsing sharedInstance]startParsingForShowProducts:appDel.userIdString]; 
    [sellerTableView reloadData]; 

} 


-(void)showProducts:(NSMutableArray*)proArray 
{ 

    if (spinner) { 
     [spinner stopAnimating]; 
     [spinner removeFromSuperview]; 
     [spinner release]; 
     spinner = nil; 
    } 


    if ([[[proArray objectAtIndex:1]objectForKey:@"Success"]isEqualToString:@"True"]) { 
     //[self.navigationController popViewControllerAnimated:YES]; 
     //self.view.alpha=.12; 

     if (productInfoArray) { 
      [productInfoArray release]; 
     } 
     productInfoArray=[[NSMutableArray alloc]init]; 

     for (int i=2; i<[proArray count]; i++) 
     { 
      NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; 
      [productInfoArray addObject:[proArray objectAtIndex:i]]; 
      NSLog(@"data fetch array is====> /n%@",productInfoArray); 
      [pool release]; 
     } 
    } 
} 

#pragma mark (tableview methods) 

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath{ 
    return 100; 
} 


- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { 

    //return [resultarray count]; 

    return [productInfoArray count]; 
} 


-(void)loadImagesInBackground:(NSNumber *)index{ 

    NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; 

    NSMutableDictionary *frame = [[productInfoArray objectAtIndex:[index intValue]] retain]; 
    //NSLog(@"frame value ==>%@",[[frame objectForKey:@"Image"]length]); 
    NSString *frameImagePath = [NSString stringWithFormat:@"http://apple.com/snapit/products/%@",[frame objectForKey:@"Image"]]; 
    NSData *imageData = [NSData dataWithContentsOfURL:[NSURL URLWithString:frameImagePath]]; 
    NSLog(@"FRAME IMAGE%d",[[frame valueForKey:@"Image" ]length]); 

    if([[frame valueForKey:@"Image"] length] == 0){ 
     NSString *imagePath = [[NSString alloc] initWithFormat:@"%@/%@",[[NSBundle mainBundle] resourcePath],@"no_image.png"]; 
     UIImage *image = [UIImage imageWithContentsOfFile:imagePath]; 
     [frame setObject:image forKey:@"friendImage"]; 
     [imagePath release]; 
     //[image release]; 
    } 
    else { 
     //NSData *imageData = [NSData dataWithContentsOfURL:[NSURL URLWithString:frameImagePath]]; 
     NSLog(@"image data length ==>%d",[imageData length]); 
     if([imageData length] == 0){ 
      NSString *imagePath = [[NSString alloc] initWithFormat:@"%@/%@",[[NSBundle mainBundle] resourcePath],@"no_image.png"]; 
      UIImage *image = [UIImage imageWithContentsOfFile:imagePath]; 
      [frame setObject:image forKey:@"friendImage"]; 
      [imagePath release]; 
      //[image release]; 
     } 
     else { 
      //UIImage *image = [[UIImage alloc] initWithData:imageData]; 
      UIImage *image = [UIImage imageWithData:imageData]; 
      [frame setObject:image forKey:@"friendImage"]; 
      //[image release]; 
     } 
    } 
    [frame release]; 
    frame = nil; 

    [self performSelectorOnMainThread:@selector(reloadTable:) withObject:[NSArray arrayWithObject:[NSIndexPath indexPathForRow:[index intValue] inSection:0]] waitUntilDone:NO]; 

    [pool release]; 

} 

-(void)reloadTable:(NSArray *)array{ 
    NSLog(@"array ==>%@",array); 
    [sellerTableView reloadRowsAtIndexPaths:array withRowAnimation:UITableViewRowAnimationNone];  
} 


- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath 
{ 
    static NSString *celltype=@"cell"; 
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:celltype]; 


    for (UIView *view in cell.contentView.subviews) { 
     [view removeFromSuperview]; 
    } 
    if (cell == nil) 
    { 
     cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"cell"] autorelease]; 
     cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator; 
     cell.backgroundColor=[UIColor clearColor]; 
     //cell.textLabel.text=[[resultarray objectAtIndex:indexPath.row] valueForKey:@"Service"]; 

     /*UIImage *indicatorImage = [UIImage imageNamed:@"indicator.png"]; 
     cell.accessoryView = 
     [[[UIImageView alloc] 
     initWithImage:indicatorImage] 
     autorelease];*/ 
     /*NSThread *thread=[[NSThread alloc]initWithTarget:self selector:@selector() object:nil]; 
     [thread setStackSize:44]; 
     [thread start];*/ 

     cell.backgroundView=[[[UIImageView alloc]initWithImage:[UIImage imageNamed:@"cell.png"]]autorelease]; 
     // [[[UIImageView alloc] initWithImage:[UIImage imageNamed:@"back.png"]] autorelease]; 

     cell.selectionStyle=UITableViewCellSelectionStyleNone; 



    } 


    UIImageView *imageView= [[UIImageView alloc] initWithFrame:CGRectMake(19, 15, 75, 68)]; 
    imageView.contentMode = UIViewContentModeScaleToFill; 

    // @synchronized(self) 
    //{ 
    NSMutableDictionary *dict = [productInfoArray objectAtIndex:indexPath.row]; 
    if([dict objectForKey:@"friendImage"] == nil){ 
     imageView.backgroundColor = [UIColor clearColor]; 
     if ([dict objectForKey:@"isThreadLaunched"] == nil) { 
      [NSThread detachNewThreadSelector:@selector(loadImagesInBackground:) toTarget:self withObject:[NSNumber numberWithInt:indexPath.row]]; 
      [dict setObject:@"Yes" forKey:@"isThreadLaunched"]; 
     } 
    }else { 

     imageView.image =[dict objectForKey:@"friendImage"]; 

    } 

    //NSString *imagePath = [[NSString alloc] initWithFormat:@"%@/%@",[[NSBundle mainBundle] resourcePath],@"no_image.png"]; 
    //imageView.layer.cornerRadius = 20.0;//vk 
    //imageView.image=[UIImage imageWithContentsOfFile:imagePath]; 
    //imageView.layer.masksToBounds = YES; 

    //imageView.layer.borderColor = [UIColor darkGrayColor].CGColor; 
    //imageView.layer.borderWidth = 1.0;//vk 
    //imageView.layer.cornerRadius=7.2f; 
    [cell.contentView addSubview:imageView]; 
    //[imagePath release]; 
    [imageView release]; 

    imageView = nil;  
    //} 

    UILabel *productCodeLabel = [[UILabel alloc] initWithFrame:CGRectMake(105, 7, 60,20)]; 
    productCodeLabel.textColor = [UIColor whiteColor]; 
    productCodeLabel.backgroundColor=[UIColor clearColor]; 
    productCodeLabel.text=[NSString stringWithFormat:@"%@",@"Code"]; 
    [cell.contentView addSubview:productCodeLabel]; 
    [productCodeLabel release]; 

    UILabel *CodeValueLabel = [[UILabel alloc] initWithFrame:CGRectMake(170, 7, 140,20)]; 
    CodeValueLabel.textColor = [UIColor whiteColor]; 
    CodeValueLabel.backgroundColor=[UIColor clearColor]; 
    CodeValueLabel.text=[NSString stringWithFormat:@"%@",[[productInfoArray objectAtIndex:indexPath.row]valueForKey:@"ID"]]; 
    [cell.contentView addSubview:CodeValueLabel]; 
    [CodeValueLabel release]; 



    UILabel *productNameLabel = [[UILabel alloc] initWithFrame:CGRectMake(105, 35, 60,20)]; 
    productNameLabel.textColor = [UIColor whiteColor]; 
    productNameLabel.backgroundColor=[UIColor clearColor]; 
    productNameLabel.text=[NSString stringWithFormat:@"%@",@"Name"]; 
    [cell.contentView addSubview:productNameLabel]; 
    [productNameLabel release]; 

    UILabel *NameValueLabel = [[UILabel alloc] initWithFrame:CGRectMake(170, 35, 140,20)]; 
    NameValueLabel.textColor = [UIColor whiteColor]; 
    NameValueLabel.backgroundColor=[UIColor clearColor]; 
    NameValueLabel.text=[NSString stringWithFormat:@"%@",[[productInfoArray objectAtIndex:indexPath.row]valueForKey:@"Title"]]; 
    [cell.contentView addSubview:NameValueLabel]; 
    [NameValueLabel release]; 



    UILabel *dateLabel = [[UILabel alloc] initWithFrame:CGRectMake(105, 68, 60,20)]; 
    dateLabel.textColor = [UIColor whiteColor]; 
    dateLabel.backgroundColor=[UIColor clearColor]; 
    dateLabel.text=[NSString stringWithFormat:@"%@",@"Date"]; 
    [cell.contentView addSubview:dateLabel]; 
    [dateLabel release]; 

    UILabel *dateValueLabel = [[UILabel alloc] initWithFrame:CGRectMake(170, 68, 140,20)]; 
    dateValueLabel.textColor = [UIColor whiteColor]; 
    dateValueLabel.backgroundColor=[UIColor clearColor]; 
    dateValueLabel.text=[NSString stringWithFormat:@"%@",[[productInfoArray objectAtIndex:indexPath.row]valueForKey:@"PostedDate"]]; 
    dateValueLabel.font=[UIFont systemFontOfSize:14]; 
    dateValueLabel.numberOfLines=3; 
    dateValueLabel.adjustsFontSizeToFitWidth=YES; 
    [dateValueLabel setLineBreakMode:UILineBreakModeCharacterWrap]; 
    [cell.contentView addSubview:dateValueLabel]; 
    [dateValueLabel release]; 

} 

ください-2の助け私を、.....

Answer 1

私は全く同じ問題を抱えていました。二つの提案：キャッシュイメージへ

1. 使用https://github.com/rs/SDWebImage - あなたのコードはそうでない、ビューの画像を解放しない - あなたは自動的に警告メモリを受信したとき、それはディスクにキャッシュします。

2. 画像は小さくても大きくてもかまいませんか？ほとんどの場合、テーブルビュー用のサムネイルを作成することをお勧めします。これは、サイズの大きすぎるイメージの場合は簡単に多くのメモリが必要になるためです。

Answer 2

ここで起こっ特に神秘的なものは何もありません。メモリ警告が表示されますが、無視してください。それから、別の警告が送られます。無視してください。その後、あなたのアプリを強制終了します。

要するに、あまりにも多くのメモリを使用しています。

イメージファイルを「ディスク」に保存し、表示しようとしているものだけをメモリに保存するか、イメージまたは小さいイメージの数を減らして使用する方法を見つけ出す必要があります。あなたが考えることができる他の多くの方法があると確信していますが、あなたのアプリがより具体的にすることが難しいことを知らずに。