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POUIScrollView doesn't release images
 

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    <p>I have a UIScrollView that shows a gallery of images from a plist file. I also have a function to delete an image from the gallery image list that basically deletes an object in the plist file and then reload the images in the ScrollView. The issue is I am not able to release the images of the UIScrollView before to reload it with the new content when I use the method <code>- (IBAction)deleteimage:(id)sender</code>. The new content is loaded but over the older content and then the images are still behind the new one. What I should do to release images before to reload the scrollview content? </p> <p>The code I am using is :</p> <pre><code>#import "ImageScrollViewController.h" @interface ImageScrollViewController () @end @implementation ImageScrollViewController @synthesize images,scrollView,pageControl,subview; - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; if (self) { // Custom initialization } return self; } - (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view from its nib. scrollView.autoresizingMask = ( UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight); [self setupthescroll]; self.pageControl.currentPage = 0; } - (void)setupthescroll{ //Get the images of the Array NSUserDefaults *success = [NSUserDefaults standardUserDefaults]; images = [success mutableArrayValueForKey:@"imagelist"]; NSLog(@"list of images%@",images); pageControlBeingUsed = NO; for (int i = 0; i &lt; images.count; i++) { CGRect frame; frame.origin.x = self.scrollView.frame.size.width * i; frame.origin.y = 0; frame.size = self.scrollView.frame.size; subview = [[UIImageView alloc] initWithFrame:frame]; NSString *str4 = [images objectAtIndex:i]; subview.image = [[[UIImage alloc] initWithContentsOfFile:str4] autorelease]; self.subview.contentMode = UIViewContentModeScaleAspectFit; [self.scrollView addSubview:subview]; [subview release]; } self.scrollView.contentSize = CGSizeMake(self.scrollView.frame.size.width * images.count, self.scrollView.frame.size.height); self.pageControl.numberOfPages = images.count; //Get the number of the images int page; page = self.pageControl.currentPage; printf("Current Page: %d", page); } - (void)scrollViewDidScroll:(UIScrollView *)sender { if (!pageControlBeingUsed) { // Switch the indicator when more than 50% of the previous/next page is visible CGFloat pageWidth = self.scrollView.frame.size.width; int page = floor((self.scrollView.contentOffset.x - pageWidth / 2) / pageWidth) + 1; self.pageControl.currentPage = page; } } - (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView { pageControlBeingUsed = NO; } - (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView { pageControlBeingUsed = NO; } - (IBAction)changePage { // Update the scroll view to the appropriate page CGRect frame; frame.origin.x = self.scrollView.frame.size.width * self.pageControl.currentPage; frame.origin.y = 0; frame.size = self.scrollView.frame.size; [self.scrollView scrollRectToVisible:frame animated:YES]; pageControlBeingUsed = YES; } - (IBAction)deleteimage:(id)sender{ //Get the number of the image int page; page = self.pageControl.currentPage; printf("Current Page: %d", page); //Remove the images of the Array NSUserDefaults *success = [NSUserDefaults standardUserDefaults]; images = [success mutableArrayValueForKey:@"imagelist"]; [images removeObjectAtIndex:page]; NSLog(@"list of images%@",images); //Update the Array NSUserDefaults *arrayofimages = [NSUserDefaults standardUserDefaults]; [arrayofimages setObject:images forKey:@"imagelist"]; //Refresh the ScrollView [self setupthescroll]; //post the notification than images have been updated NSUserDefaults *deleted = [NSUserDefaults standardUserDefaults]; [deleted setObject:@"deleted" forKey:@"deletedimages"]; } - (IBAction)closepage:(id)sender{ [self dismissModalViewControllerAnimated:YES]; } - (void)viewDidUnload { [super viewDidUnload]; // Release any retained subviews of the main view. // e.g. self.myOutlet = nil; } - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { return (interfaceOrientation == UIInterfaceOrientationPortrait); } - (void)dealloc { [pageControl release]; [scrollView release]; //[images release]; [super dealloc]; } @end </code></pre>
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