5
Я разрабатываю приложение для iPhone, и я обнаружил, что следующий код вызывает увеличение памяти.ImageI initImageJPEG экземпляры получают выделенные и никогда не выпущенные
-(UIImage *)createRecipeCardImage:(Process *)objectTBD atIndex:(int)indx
{
[objectTBD retain];
// bringing the image for the background
UIImage *rCard = [UIImage imageNamed:@"card_bg.png"];
CGRect frame = CGRectMake(00.0f, 80.0f, 330.0f, 330.0f);
// creating he UIImage view to contain the recipe's data
UIImageView *imageView = [[UIImageView alloc] initWithFrame:frame];
imageView.image = rCard;
[rCard release];
imageView.userInteractionEnabled = YES;
float titleLabelWidth = 150.0;
float leftGutter = 5.0;
float titleYPos = 25.0;
float space = 3.0;
float leftYPos = 0;
// locating Title label
float currentHeight = [self calculateHeightOfTextFromWidth:objectTBD.Title :titleFont :titleLabelWidth :UILineBreakModeWordWrap];
UILabel *cardTitle = [[UILabel alloc]initWithFrame:CGRectMake(leftGutter, titleYPos, titleLabelWidth, currentHeight)];
cardTitle.lineBreakMode = UILineBreakModeWordWrap;
cardTitle.numberOfLines = 0;
cardTitle.font = titleFont;
cardTitle.text = objectTBD.Title;
cardTitle.backgroundColor = [UIColor clearColor];
[imageView addSubview:cardTitle];
[cardTitle release];
leftYPos = titleYPos + currentHeight + space;
// locating brown line
UIView *brownLine = [[UIView alloc] initWithFrame:CGRectMake(5.0, leftYPos, 150.0, 2.0)];
brownLine.backgroundColor = [UIColor colorWithRed:0.647 green:0.341 blue:0.122 alpha:1.0];
[imageView addSubview:brownLine];
[brownLine release];
leftYPos = leftYPos + 2 + space + space + space;
// creating the imageView to place the image
UIImageView *processPhoto = [[UIImageView alloc] initWithFrame:CGRectMake(leftGutter, leftYPos, 150, 150)];
if((uniqueIndex == indx) && (uniqueImg.imageData != nil))
{
if([uniqueImg.rcpIden isEqualToString:objectTBD.iden])
{
objectTBD.imageData = [NSString stringWithFormat:@"%@", uniqueImg.imageData];
[recipesFound replaceObjectAtIndex:indx withObject:objectTBD];
NSData * imageData = [NSData dataFromBase64String:objectTBD.imageData];
UIImage *rcpImage = [[UIImage alloc] initWithData:imageData];
[imageData release];
processPhoto.image = rcpImage;
[rcpImage release];
}
}
else if(objectTBD.imageData != nil)
{
NSData * imageData = [NSData dataFromBase64String:objectTBD.imageData];
UIImage *rcpImage = [[UIImage alloc] initWithData:imageData];
processPhoto.image = rcpImage;
[rcpImage release];
[decodedBigImageDataPointers addObject:imageData];
}
else
{
UIImage * rcpImage = [UIImage imageNamed:@"default_recipe_img.png"];
processPhoto.image = rcpImage;
[rcpImage release];
}
NSlog(@" Process Photo Retain Count %i", [processPhoto retainCount]); // this prints a 1
[imageView addSubview:processPhoto];
NSlog(@" Process Photo Retain Count %i", [processPhoto retainCount]); // this prints a 2!!!!
//[processPhoto release]; // this line causes an error :(
// converting the UIImageView into a UIImage
UIGraphicsBeginImageContext(imageView.bounds.size);
[imageView.layer renderInContext:UIGraphicsGetCurrentContext()];
UIImage *viewImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
[objectTBD release];
for(UIView *eachSubview in imageView.subviews)
{
[eachSubview removeFromSuperview];
NSLog(@"each subview retainCount %i despues", [eachSubview retainCount]);
// here I find that the processPhoto view has a retain count of 2 (all other views have their retain count in 1)
}
return viewImage;
}
Когда я проверил размещение объектов в инструментах, я обнаружил, что «GeneralBlock-9216» растет.
Разбивка строки я обнаружил, что каждый раз, когда я называю этот код, один экземпляр:
2 0x5083800 00:18.534 ImageIO initImageJPEG
ассигнуется. При проверке стека вызовов подсвечивается следующая строка:
UIImage * objImage = [UIImage imageWithData:imageData];
Любая помощь в поиске ошибки.
У меня такая же проблема, и ее будет интересовать решение. – Kamchatka