EXC_BREAKPOINT when going back to view with imgview in scrollview - ios

Question

I call an view with an imgView inside a scrollview like this from another view
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
[tableView deselectRowAtIndexPath:indexPath animated:YES];
ImageViewController *view = [[self.menus objectAtIndex:[indexPath row]] objectForKey:#"VIEW"];
view.imgPath = [[self.menus objectAtIndex:[indexPath row]] objectForKey:#"PATH"];
[self presentViewController:view animated:YES completion:nil];
}
Then I show the image in the new view like this
-(UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollView
{
return self.imgView;
}
- (void)viewWillAppear:(BOOL)animated {
[super viewWillAppear:animated];
NSString *path = [[NSBundle mainBundle] pathForResource:self.imgPath ofType:#"png"];
UIImage *image = [[UIImage alloc] initWithContentsOfFile:path];
self.imgView = [[UIImageView alloc] initWithImage:image];
self.imgView.frame = (CGRect){.origin=CGPointMake(0.0f, 0.0f), .size=image.size};
[self.scrollView addSubview:self.imgView];
self.scrollView.contentSize = image.size;
CGRect scrollViewFrame = self.scrollView.frame;
CGFloat scaleWidth = scrollViewFrame.size.width / self.scrollView.contentSize.width;
CGFloat scaleHeight = scrollViewFrame.size.height / self.scrollView.contentSize.height;
CGFloat minScale = MIN(scaleWidth, scaleHeight);
self.scrollView.minimumZoomScale = minScale;
self.scrollView.maximumZoomScale = 1.0f;
self.scrollView.zoomScale = minScale;
[self centerScrollViewContents];
}
- (void)viewDidLoad
{
[super viewDidLoad];
UITapGestureRecognizer *doubleTapRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:#selector(scrollViewDoubleTapped:)];
doubleTapRecognizer.numberOfTapsRequired = 2;
doubleTapRecognizer.numberOfTouchesRequired = 1;
[self.scrollView addGestureRecognizer:doubleTapRecognizer];
UITapGestureRecognizer *twoFingerTapRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:#selector(scrollViewTwoFingerTapped:)];
twoFingerTapRecognizer.numberOfTapsRequired = 1;
twoFingerTapRecognizer.numberOfTouchesRequired = 2;
[self.scrollView addGestureRecognizer:twoFingerTapRecognizer];
}
- (void)centerScrollViewContents {
CGSize boundsSize = self.scrollView.bounds.size;
CGRect contentsFrame = self.imgView.frame;
if (contentsFrame.size.width < boundsSize.width) {
contentsFrame.origin.x = (boundsSize.width - contentsFrame.size.width) / 2.0f;
} else {
contentsFrame.origin.x = 0.0f;
}
if (contentsFrame.size.height < boundsSize.height) {
contentsFrame.origin.y = (boundsSize.height - contentsFrame.size.height) / 2.0f;
} else {
contentsFrame.origin.y = 0.0f;
}
self.imgView.frame = contentsFrame;
}
This all works with no problems and I can dismiss the view like this
- (IBAction)BackBtnPress:(id)sender {
[self dismissViewControllerAnimated:YES completion:nil];
}
However when I want to go back to the image view again from didSelectRowAtIndexPath the app crashes and I get EXC_BREAKPOINT at
0x18e2756: calll 0x1a37a00 ; symbol stub for: getpid
I have tried debugging and it goes through viewWillAppear with seamingly no issues and then crashes
Any ideas on what the problem might be?
Thanks!
Edit
enabling zombies did not help, disabling arc changes nothing.

Answer 1

I fixed it by creating the new imageview when the row was selected instead of when the first view with the tableview was loaded, so my didselectrowatindexpath looks like this
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
[tableView deselectRowAtIndexPath:indexPath animated:YES];
ImageViewController *view = [ImageViewController alloc];
view.imgPath = [[self.menus objectAtIndex:[indexPath row]] objectForKey:#"PATH"];
[self presentViewController:view animated:YES completion:nil];
}