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POImage loading with GCD receiving memory warning
 

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  1. POImage loading with GCD receiving memory warning
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    <p>I'm developing a photo gallery application using AssetsLibrary to load my device photos. When presenting a random image in another VC I've noticed the following : it takes about 1 or 2 seconds for my full res image to load on the imageView (way much longer than the native photosApp) and I also get from the log "Received memory warning" after loading a few images. If I set my representation to fullScreenImage the warnings stop but I don't want this. What must I change for a smooth performance and high quality images on the view ? </p> <p>Here's the code,hope you can tell me what's the problem :</p> <p>This is the VC where I want to present my image on the screen</p> <pre><code>- (void)viewDidLoad { [super viewDidLoad]; NSLog(@"%@",assetsController); detailImageView = [[UIImageView alloc]initWithFrame:self.view.bounds]; [self.view addSubview:detailImageView]; detailImageView.image = smallImage; //small image is my asset thumbnail and is passed as an argument in my init function dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_LOW, 0), ^{ NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; ALAsset *asset = [assetsController.albumPics objectAtIndex:assetsController.index]; ALAssetRepresentation *representation = [asset defaultRepresentation]; bigImage = [[UIImage imageWithCGImage:[representation fullResolutionImage]]retain]; dispatch_async(dispatch_get_main_queue(), ^{ detailImageView.image = bigImage; }); [pool release]; }); } </code></pre> <p><strong>UPDATE 1</strong></p> <pre><code> { UIImageView *detailImageView = [[UIImageView alloc]initWithFrame:self.view.bounds]; [self.view addSubview:detailImageView]; detailImageView.image = smallImage; dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_LOW, 0), ^{ NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; ALAsset *asset = [assetsController.albumPics objectAtIndex:assetsController.index]; ALAssetRepresentation *representation = [asset defaultRepresentation]; UIImage *bigImage = [UIImage imageWithCGImage:[representation fullResolutionImage]]; dispatch_async(dispatch_get_main_queue(), ^{ detailImageView.image = bigImage; }); [pool release]; }); } </code></pre> <p><img src="https://i.stack.imgur.com/ubI4H.png" alt="enter image description here"></p>
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    1. COtry releasing [bigImage release]; after detailImageView.image = bigImage;
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    2. CO@bhuXan tried this already and still getting warnings after a few image loads...
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      1. USQuiBongJin
    3. COusing jpeg images or converting png to jpeg should do....
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      1. USBhushanVU
 

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