Images not release in memory

Question

I have table with Images cell. Images download from internet and save in local disk. Count = 200. Tableview show this images. When scroll content to bottom, comes message memory warning... Used memory 250 - 300 mb O_O!!! Links to images that do not keep.

NSString *cellID = @"cellId";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellID];
...
NSString* imagePath = [arrayContent objectAtIndex:indexPath.row];
UIImage* image = [[UIImage alloc] initWithContentsOfFile:imagePath];
[cell.imageView setImage:image];

Why hide images not release?

Answer 1

Replace this line

UIImage* image = [[UIImage alloc] initWithContentsOfFile:imagePath];

with this and check once

 UIImage *image = [UIImage imageWithContentsOfFile:imagePath];

Answer 2

Well I used a custom MSAsyncImageCell class that replaces its image when reused by iOS. It loads the image from a URL asynchronously, displaying a "loading" image gracefully and release memory when reused for another image. If you want I can post the code here but the code is a bit long.

Here is the part of code that actually loads the image. I have images off web/caches so it is NSData.

- (BOOL)_loadImageWithData:(NSData *)imageData
{
    UIImage *image = [UIImage imageWithData:imageData];

    // Just in case loading failed.

    if (image)
    {
        // Extra check - don't mix up.
        if ([[self.currentURL absoluteString] isEqualToString:[self.imageURL absoluteString]])
            self.asyncImageView.image = image;

        return YES;
    }

    return NO;
}