Question

我通过线程从URL接收图像。但内存泄漏在NSData中。为什么？我如何解决它？在Iphone devie中泄漏而不是在模拟器中。帮助我!!

//的ViewController

-(void)viewDidLoad
{

[self performSelectorInBackground:@selector(loadImageScreenshot:) withObject:args];

}

// loding image

-(void) loadImageScreenshot:(NSDictionary *) args
{
 NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; 
 UIImage * screenshotImage=[UIImage imageWithStringURL:url];
 NSDictionary *args2=[NSDictionary dictionaryWithObjectsAndKeys:
                    [NSNumber numberWithInt:num], @"screenNum",
                    screenshotImage,@"image",
                    nil];                                                               

[self performSelectorOnMainThread:@selector(assignImageToScreenshotImageView:) withObject:args2  waitUntilDone:YES];

[pool release];

}

// image add

- (void) assignImageToScreenshotImageView:(NSDictionary *)arg

{ 

NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
UIImage * image= [arg objectForKey:@"image"];
UIImageView *imageview=[UIImageView alloc]init];
               .
               .
 imageview.image=image;
[self.mScreenshotSpace addSubview:imageview];
[imageview release];
 [pool release];
 }

//来自网址的图片

+(UIImage *)imageWithStringURL:(NSString *)strURL
{
 NSURL *url =[NSURL URLWithString:strURL];
 NSData *   data=[[NSData alloc]initWithContentsOfURL:url options:NSDataReadingUncached error:&error];

 UIImage * image=[UIImage imageWithData:data ];
 [data release];
 return image;
 }

Answer 1

你怎么知道它在漏水？您正在- (void) assignImageToScreenshotImageView:(NSDictionary *)arg创建一个永不消耗的自动释放池，这是一个泄漏。否则代码似乎没问题。

内存泄漏使用URL中的NSData

1 个答案: