iOS Code Displays White Field Rather Than Image Series - iphone

Question

The code below is supposed to display a series of images in an infinite, connected loop. Instead, it just displays a totally white field. Thanks to Aaron Hayman for getting me this far.
- (void)layoutScrollImages
{
//Arrangement
NSArray *imageViews = [NSArray arrayWithObjects:#"image1.png", #"image2.png", #"image3.png", nil];
CGRect cRect = scrollView1.bounds;
UIImageView *cView;
for (int i = 0; i < imageViews.count; i++)
{
cView = [imageViews objectAtIndex:i];
cView.frame = cRect;
[scrollView1 addSubview:cView];
cRect.origin.x += cRect.size.width;
}
scrollView1.contentSize = CGSizeMake(cRect.origin.x, scrollView1.bounds.size.height);
scrollView1.contentOffset = CGPointMake(scrollView1.bounds.size.width, 0); //should be the center page in a 3 page setup
}
- (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView
{
scrollView1.contentOffset = CGPointMake(scrollView.bounds.size.width, 0);
}
FOLLOW UP:
Nothing I'm doing is making any difference. Currently, my code looks like this, but I'm changing everything I can think of to no avail.
- (void)layoutScrollImages
{
//Horizontal arrangement
NSObject *image1 = #"image1.png";
NSObject *image2 = #"image2.png";
NSObject *image3 = #"image3.png";
NSArray *imageViews = [NSArray arrayWithObjects:image1, image2, image3, nil];
CGRect cRect = scrollView1.bounds;
UIImageView *cView;
for (int i = 0; i < imageViews.count; i++)
{
cView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:[imageViews objectAtIndex:i]]];
cView.frame = cRect;
[scrollView1 addSubview:cView];
cRect.origin.x += cRect.size.width;
}
scrollView1.contentSize = CGSizeMake(cRect.origin.x, scrollView1.bounds.size.height);
scrollView1.contentOffset = CGPointMake(scrollView1.bounds.size.width, 0); //should be the center page in a 3 page setup
[self layoutScrollImages];
}
- (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView
{
scrollView1.contentOffset = CGPointMake(scrollView.bounds.size.width, 0);
}

Answer 1

You never initiate a UIImageView. You want to do something like this:
NSArray *imageViews = [NSArray arrayWithObjects:#"image1.png", #"image2.png", #"image3.png", nil];
CGRect cRect;
UIImageView *cView;
for (int i = 0; i < imageViews.count; i++)
{
cView = [[UIImageView alloc] initWithImage:[UIImage imageName:[imageViews objectAtIndex:i]]];
cRect = cView.frame;
cRect.origin.x += scrollView1.frame.size.width;
cView.frame = cRect;
[scrollView1 addSubview:cView];
NSLog(#"imageView bounds: %#", NSStringFromCGRect(cView.frame));
}
Edit:
Try the above and see if anything shows up. Here are some thoughts:
Are you sure that you aren't setting the imageView to have 0 height/width? I threw in an NSLog statement to the loop. It will print the frame of the imageView.
Have you tried adding the images to self.view instead of scrollView1? That would be a good way to make sure that the problem doesn't have to do with the frame of scrollView1. Or use the following:
NSLog(#"imageView bounds: %#", NSStringFromCGRect(scrollView1.frame));