Memory issue while uploading multiple images to server - ios

Question

I am uploading multiple images to server using ASIHTTPRequest.
-(void)uploadImagesToServer
{
[[self networkQueue] cancelAllOperations];
// Creating a new queue each time we use it means we don't have to worry about clearing delegates or resetting progress tracking
[self setNetworkQueue:[ASINetworkQueue queue]];
[[self networkQueue] setDelegate:self];
[[self networkQueue] setRequestDidStartSelector:#selector(uploadRequestStarted:)];
[[self networkQueue] setRequestDidFinishSelector:#selector(requestFinished:)];
[[self networkQueue] setRequestDidFailSelector:#selector(requestFailed:)];
[[self networkQueue] setQueueDidFinishSelector:#selector(queueFinished:)];
[[self networkQueue] setUploadProgressDelegate:self.uploadBar];
[[self networkQueue] setShowAccurateProgress:YES];
[ASIHTTPRequest setDefaultTimeOutSeconds:30];
for (int i = 0; i< appDelegate.selImageDetails.count; i++) {
NSMutableDictionary *dic = [appDelegate.selImageDetails objectAtIndex:i];
NSString *orderid = [[NSUserDefaults standardUserDefaults] objectForKey:#"orderId"];
if ([[dic objectForKey:#"Status"] isEqualToString:#"N"] || [[dic objectForKey:#"Status"] isEqualToString:#"Failed"])
{
NSURL *url = [NSURL URLWithString:#"http://180.151.100.53:9776/App_Frame_IT/UploadImage"];
NSLog(#"UPLOAD IMAGE ARRAY == %#",dic);
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc]init];
ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:url];
[request addPostValue:orderid forKey:#"OrderId"];
[request addPostValue:[dic objectForKey:#"ImageName"] forKey:#"imgName"];
[request addPostValue:#"10" forKey:#"appId"];
[request addPostValue:[dic objectForKey:#"Frame"] forKey:#"frameSize"];
[request addPostValue:[dic objectForKey:#"Quantity"] forKey:#"Quantity"];
NSString *imgCount = [NSString stringWithFormat:#"%d", [appDelegate.selImageDetails count]];
[request addPostValue:imgCount forKey:#"totalimages"];
[request addPostValue:[dic objectForKey:#"paperQuality"] forKey:#"paper_quality"];
NSURL *assetURL = [dic objectForKey:#"assetPathURL"];
ALAssetsLibrary *assetLibrary=[[ALAssetsLibrary alloc] init];
[assetLibrary assetForURL:assetURL resultBlock:^(ALAsset *asset) {
ALAssetRepresentation *rep = [asset defaultRepresentation];
Byte *buffer = (Byte*)malloc(rep.size);
NSUInteger buffered = [rep getBytes:buffer fromOffset:0.0 length:rep.size error:nil];
NSData *data = [NSData dataWithBytesNoCopy:buffer length:buffered freeWhenDone:YES];//this is NSData may be what you want
//NSLog(#"returned Image ====> %#", data);
// UIImageView *testImageView = [[UIImageView alloc]initWithFrame:CGRectMake(50, 10, 50, 50)];
NSLog(#"FUll REsolution Image Size in MB = %.2f",(float)data.length/1024.0f/1024.0f);
//[data writeToFile:photoFile atomically:YES];//you can save image later
//NSData *imageData = [[NSData alloc] initWithContentsOfMappedFile:[dic objectForKey:#"Path"]];
[request addData:data withFileName:[dic objectForKey:#"ImageName"] andContentType:#"image/png" forKey:#"uploadfile"];
//[data release];
NSLog(#"requestGenrated table count---%d ",[appDelegate.selImageDetails count]);
NSString *requestUserName = [NSString stringWithFormat:#"upload%i",i];
[request setUsername:requestUserName];
[request setUserInfo:[NSDictionary dictionaryWithObject:[dic objectForKey:#"unique"] forKey:#"uniqueId"]];
[request setTag:i];
[request setShowAccurateProgress:YES];
[request setRequestMethod:#"POST"];
[request setShouldContinueWhenAppEntersBackground:YES];
[[self networkQueue] addOperation:request];
[dic setObject:#"Y" forKey:#"requestGenrated"];
[appDelegate.selImageDetails replaceObjectAtIndex:i withObject:dic];
NSLog(#"Upload Request Created");
} failureBlock:^(NSError *err) {
NSLog(#"Error: %#",[err localizedDescription]);
}];
[pool drain];
}
else
{
NSLog(#"((Image already uploaded))");
}
}
failedRequests = 0;
[networkQueue setShouldCancelAllRequestsOnFailure:YES];
[[self networkQueue] go];
}
I am getting these images from ALAssetsLibrary as you can see above in the code. I am able to upload all the images successfully but the problem is that, it is consuming too much memory (see screenshot)
I am not able to release this memory even after uploading all the images or moving to different view. What am I suppose to do, which object do I've to release?
Thanks

Answer 1

Set up the cachePolicy of NSURLRequest to avoid cache, should be similar in ASIFormDataRequest
request.cachePolicy = NSURLRequestReloadIgnoringLocalCacheData