scrollView with paging enabled not working properly ? (Objective-C) - ios

Question

i want to create paging scrollView with three UIViews. And than wants to add imageView as a subView to these UIViews. i cant figure it out how to calculate the frame of imageViews.
When i run the code without imageViews it works perfectly fine.
- (void)viewDidLoad
{
[super viewDidLoad];
self.scrollView.delegate = self;
self.scrollView.frame = self.view.frame;
NSArray *colorsArray = [NSArray arrayWithObjects:[UIColor blueColor], [UIColor yellowColor],[UIColor greenColor], nil];
NSArray *imagesArray = [NSArray arrayWithObjects:[UIImage imageNamed:#"123.png"],[UIImage imageNamed:#"13.png"],[UIImage imageNamed:#"12.png"],nil];
for (int i = 0; i < colorsArray.count; i++) {
CGRect frame;
frame.origin.x = self.view.frame.size.width * i;
frame.size = self.view.frame.size;
self.scrollView.pagingEnabled = YES;
UIView *view = [[UIView alloc] initWithFrame:frame];
view.backgroundColor = [colorsArray objectAtIndex:i];
UIImageView *imageView = [[UIImageView alloc] initWithFrame:view.frame];
imageView.contentMode = UIViewContentModeScaleAspectFit;
imageView.image = [imagesArray objectAtIndex:i];
[view addSubview:imageView];
[self.scrollView addSubview:view];
}
self.scrollView.contentSize = CGSizeMake(self.view.frame.size.width * colorsArray.count, self.scrollView.frame.size.height);
self.pageControl.numberOfPages = 3;
self.pageControl.currentPage = 0;
}
- (void)scrollViewDidScroll:(UIScrollView *)scrollView {
CGFloat pageWidth = CGRectGetWidth(self.scrollView.bounds);
CGFloat pageFraction = self.scrollView.contentOffset.x / pageWidth;
self.pageControl.currentPage = roundf(pageFraction);
}

Answer 1

The frame for the image view needs to be relative to its superview (i.e. view) not the scroll view. To achieve the paging you desire change:
UIImageView *imageView = [[UIImageView alloc] initWithFrame:view.frame];
to:
UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(0.0, 0.0, view.frame.size.width, view.frame.size.height)];