I am using UIPageViewController to show images full screen. Issue is the images are not showing full screen. Instead there is a gap on the bottom between the image and the page control view dots and on the top. I have a UIViewController which is added to UIPageController as a sub view / child and that ViewController has the images being showed using ImageView. I am trying to do this in swift/storyboard.
I changing the top bar and bottom bar option to "none" in storyboard, but it didn't work.
Image Preview:
The ChildViewControllerCode:
class BoatContentViewController: UIViewController {
@IBOutlet weak var imageView: UIImageView!
@IBOutlet weak var titleLabel: UILabel!
var pageIndex: Int!
var titleText: String!
var imageFile: String!
override func viewDidLoad() {
super.viewDidLoad()
self.imageView.image = UIImage(named: self.imageFile)
self.titleLabel.text = self.titleText
// Do any additional setup after loading the view.
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
The mainViewControllerCode:
class BoatViewController: UIViewController, UIPageViewControllerDataSource {
@IBOutlet weak var loginButton: UIButton!
@IBOutlet weak var skipButton: UIButton!
var pageViewController: UIPageViewController!
var pageTitles: NSArray!
var pageImages: NSArray!
override func viewDidLoad() {
super.viewDidLoad()
loginButton.backgroundColor = UIColor.clearColor()
loginButton.layer.cornerRadius = 5
loginButton.layer.borderWidth = 1
loginButton.layer.borderColor = UIColor.purpleColor().CGColor
skipButton.backgroundColor = UIColor.whiteColor()
skipButton.layer.cornerRadius = 5
skipButton.layer.borderWidth = 1
skipButton.layer.borderColor = UIColor.whiteColor().CGColor
self.pageTitles = NSArray(objects: "", "", "", "", "")
self.pageImages = NSArray(objects: "onboarding1", "onboarding2", "onboarding3", "onboarding4", "onboarding5")
self.pageViewController = self.storyboard?.instantiateViewControllerWithIdentifier("BoatPageViewController") as! UIPageViewController
self.pageViewController.dataSource = self
var startVC = self.viewControllerAtIndex(0) as BoatContentViewController
var viewControllers = NSArray(object: startVC)
self.pageViewController.setViewControllers(viewControllers as [AnyObject], direction: .Forward, animated: true, completion: nil)
self.pageViewController.view.frame = CGRectMake(0, 30, self.view.frame.width, self.view.frame.size.height - 60)
self.addChildViewController(self.pageViewController)
self.view.addSubview(self.pageViewController.view)
self.pageViewController.didMoveToParentViewController(self)
// Do any additional setup after loading the view.
}
func viewControllerAtIndex(index: Int) -> BoatContentViewController {
if ((self.pageTitles.count == 0) || (index >= self.pageTitles.count)) {
return BoatContentViewController()
}
var vc: BoatContentViewController = self.storyboard?.instantiateViewControllerWithIdentifier("BoatContentViewController") as! BoatContentViewController
vc.imageFile = self.pageImages[index] as! String
vc.titleText = self.pageTitles[index]as! String
vc.pageIndex = index
return vc
}
func pageViewController(pageViewController: UIPageViewController, viewControllerBeforeViewController viewController: UIViewController) -> UIViewController?
{
var vc = viewController as! BoatContentViewController
var index = vc.pageIndex as Int
if (index == 0 || index == NSNotFound)
{
return nil
}
index--
return self.viewControllerAtIndex(index)
}
func pageViewController(pageViewController: UIPageViewController, viewControllerAfterViewController viewController: UIViewController) -> UIViewController? {
var vc = viewController as! BoatContentViewController
var index = vc.pageIndex as Int
if (index == NSNotFound) {
return nil
}
index++
if (index == self.pageTitles.count) {
return nil
}
return self.viewControllerAtIndex(index)
}
func presentationCountForPageViewController(pageViewController: UIPageViewController) -> Int {
return self.pageTitles.count
}
func presentationIndexForPageViewController(pageViewController: UIPageViewController) -> Int {
return 0
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
App Delegate:
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
// Override point for customization after application launch.
var pageControl = UIPageControl.appearance()
pageControl.pageIndicatorTintColor = UIColor.lightGrayColor()
pageControl.currentPageIndicatorTintColor = UIColor.blackColor()
pageControl.backgroundColor = UIColor.clearColor()
return true
}
The UIPageViewController has a view, in which its pages will appear. Those pages cannot be bigger than that view - in other words, they are inside the page view controller.
Your UIPageViewController's view is smaller than the screen - it allows room at the bottom for the page control and the button, and at the top for the nav bar. You yourself are causing this to be true:
You have allowed 30 points gap at the top and 30 points gap at the bottom. Thus, the images it displays can never be bigger than that. They can never be "full screen".