Question

So I have seen the many other posts on this, and I think I have tried almost all of them. I don’t want this to be a duplicate, but I can’t get a solution to my problem. I have a setup like this:

When I get to my Scroll View Controller, I can page over just fine, but I can also move the pictures around vertically. I think it has something to do with the NavigationBar forcing the ScrollView frame down, but still having the frame set to the full screen size. How do I prevent any vertical scrolling on the Scroll View View Controller? My .m is below:

- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
self.navigationController.navigationBarHidden = NO;

i = 0;

_PhotoBundle = [[NSBundle mainBundle] pathsForResourcesOfType:@".jpg"inDirectory:@"Dog_Images"];

_PhotoArray = [[NSMutableArray alloc] initWithCapacity:_PhotoBundle.count];
for (NSString* path in _PhotoBundle)
{
    [_PhotoArray addObject:[UIImage imageWithContentsOfFile:path]];
}
for (int x = 0; x < _PhotoArray.count; x++)
{
    CGRect frame;
    frame.origin.x = self.mainScroll.frame.size.width * x;
    frame.origin.y = 0;
    frame.size = self.mainScroll.frame.size;

    UIImage *nextImg = [[UIImage alloc] init];
    nextImg = [_PhotoArray objectAtIndex:x];

    UIImageView *nextIV = [[UIImageView alloc] initWithFrame:frame];
    [nextIV setImage:nextImg];

    [self.mainScroll addSubview:nextIV];
    //NSLog(@"Pass %d", x);
}

self.mainScroll.contentSize = CGSizeMake(self.mainScroll.frame.size.width * _PhotoArray.count, self.mainScroll.frame.size.height);

}

Thank you very much!!

Answer 1

So I found a post that explained it perfectly:

How to disable just vertical scrolling in a UIScrollView?

When I change my

CGSizeMake(self.mainScroll.frame.size.width * _PhotoArray.count, self.mainScroll.frame.size.height);

to

CGSizeMake(self.mainScroll.frame.size.width * _PhotoArray.count, 1.0);

It makes the contentSize from being larger than the bounds… Something that I have read about, but did not fully understand. I hope this helps someone else who is stuck with this…