This is the code that I use when setting up a UIScrollView to contain multiple images that can be scrolled through. I add this code in the viewDidLoad or viewWillAppear methods and then set the numberOfViews to the number of images I want to display. This will also scale the images to fit the size of the screen using an aspect fit scaling. The example code loads images named “image1”, “image2” etc.
-(void) setupScrollView {
//add the scrollview to the view
self.scrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0,
self.view.frame.size.width,
self.view.frame.size.height)];
self.scrollView.pagingEnabled = YES;
[self.scrollView setAlwaysBounceVertical:NO];
//setup internal views
NSInteger numberOfViews = 3;
for (int i = 0; i < numberOfViews; i++) {
CGFloat xOrigin = i * self.view.frame.size.width;
UIImageView *image = [[UIImageView alloc] initWithFrame:
CGRectMake(xOrigin, 0,
self.view.frame.size.width,
self.view.frame.size.height)];
image.image = [UIImage imageNamed:[NSString stringWithFormat:
@"image%d", i+1]];
image.contentMode = UIViewContentModeScaleAspectFit;
[self.scrollView addSubview:image];
}
//set the scroll view content size
self.scrollView.contentSize = CGSizeMake(self.view.frame.size.width *
numberOfViews,
self.view.frame.size.height);
//add the scrollview to this view
[self.view addSubview:self.scrollView];
}