In this code snippet the flow of program goes
out of for loop first then only goes inside the block
resultBlock:^(ALAsset *asset).
The code prints the NSLog at the bottom first then executes the block inside the loop. What's happening here?
ALAssetsLibrary *lib=[ALAssetsLibrary new];
_sizeOfSelectedImage=0;
for (int i=0; i<assets.count; i++) {
ALAsset *asset=assets[i];
FileOP *fileMgr=[[FileOP alloc]init];
NSString *baseDir=[fileMgr GetDocumentDirectory];
//STORING FILE INTO LOCAL
[lib assetForURL:asset.defaultRepresentation.url
resultBlock:^(ALAsset *asset){
ALAssetRepresentation *repr = [asset defaultRepresentation];
CGImageRef cgImg = [repr fullResolutionImage];
NSString *fname = repr.filename;
UIImage *img = [UIImage imageWithCGImage:cgImg];
NSData *data = UIImagePNGRepresentation(img);
[data writeToFile:[baseDir stringByAppendingPathComponent:fname]
atomically:YES];
//FOR LOCAL URL OF THE IMAGE
//NSString *imageURL = [baseDir stringByAppendingPathComponent:fname];
//UIImage *myImg =[UIImage imageWithContentsOfFile:imageURL];
//NSLog(@"%@ URL OF IMAGE ",imageURL);
NSLog(@"Image %d has %d size",i,data.length);
_sizeOfSelectedImage +=data.length;
NSLog(@"%d is the size",_sizeOfSelectedImage);
}
failureBlock:^(NSError *error){
}];
}
NSLog(@"COPIED %lu FILE INTO LOCAL MEMORY AND TOTAL SIZE COPIED IS %d ",(unsigned long)assets.count,_sizeOfSelectedImage);
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