PFImageView Memory Problems - ios

Question

I'm having a problem with a custom collection view of PFImages taking up way too much memory. In Parse, I've only got 7 objects, but the memory is reaching up to 1.1 gigabytes when loading the collection view. Also, the memory is not deallocating when leaving the view.
Here's my code
Custom cell
- (id)initWithFrame:(CGRect)frame {
self = [super initWithFrame:frame];
if (self) {
[self setup];
}
return self;
}
- (id)initWithCoder:(NSCoder *)anotherDecoder {
self = [super initWithCoder:anotherDecoder];
if (self) {
[self setup];
}
return self;
}
- (void)setup {
self.pictureImageView = [[PFImageView alloc]init];
self.pictureImageView.frame = CGRectMake(0, 0, self.pictureView.frame.size.width, self.pictureView.frame.size.height);
[self.contentView addSubview:pictureImageView];
}
Collection View Code
- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath {
PicturesCollectionViewCell *cell = (PicturesCollectionViewCell *) [collectionView dequeueReusableCellWithReuseIdentifier:#"cell" forIndexPath:indexPath];
tempObject = [picturesArray objectAtIndex:indexPath.row];
PFFile *file = [tempObject objectForKey:#"thumbnail"];
cell.pictureImageView.file = file;
cell.pictureImageView.image = [UIImage imageNamed: #"LOADING.png"];
[cell.pictureImageView loadInBackground];
cell.pictureImageView.contentMode = UIViewContentModeScaleAspectFill;
cell.titleLabel.text = [tempObject objectForKey:#"title"];
NSLog(#"Image: %#, File: %#, at index: %li", cell.pictureImageView.image, cell.pictureImageView.file, indexPath.row);
return cell;
}

Answer 1

Parse is terrible with this situation... the code will trigger a purge when it gets a memory warning, this helps sometimes:
- (void)removeCacheFiles {
[PFQuery clearAllCachedResults];
NSString *cacheDir = [NSSearchPathForDirectoriesInDomains(
NSCachesDirectory, NSUserDomainMask, YES) objectAtIndex:0];
NSString *nsurlDir =
[[NSString alloc] initWithFormat:#"%#/YOUR_BUNDLE_ID", cacheDir];
NSFileManager *manager = [NSFileManager defaultManager];
// grab all the files in the documents dir
NSArray *allFiles = [manager contentsOfDirectoryAtPath:nsurlDir error:nil];
// filter the array for only sqlite files
NSPredicate *fltr = [NSPredicate predicateWithFormat:#"self ENDSWITH '.db'"];
NSArray *dbFiles = [allFiles filteredArrayUsingPredicate:fltr];
// use fast enumeration to iterate the array and delete the files
for (NSString *dbFile in dbFiles) {
NSError *error = nil;
[manager removeItemAtPath:[nsurlDir stringByAppendingPathComponent:dbFile]
error:&error];
if (error != nil) {
NSLog(#"Error:%#", [error description]);
} else {
NSLog(#"DB FILE Cleared: %#", dbFile);
}
}
}