I'm new to Swift and am trying to implement an app that has a 'presentation' mode. I'm trying to carry this out by using a UICollectionView where the cell in both portrait and landscape mode is the full width of the frame that it's in and half its height. The problem is that when I start the app in landscape or portrait mode everything works fine. However, if I start in portrait mode and then rotate 'right' to landscape mode, the cell no longer fits the width of the frame.
What I've tried so far is:
- moving my setUpCollectionView() function in and out of my viewDidLoad
- adjusting my sizeForItem at function
- adjusting autolayout constraints
None of which have worked.
class ViewController: UIViewController, UICollectionViewDataSource, UICollectionViewDelegate, UICollectionViewDelegateFlowLayout {
let textArray = ["Some text", "Some other text", "even more stuff", "And more stuff", "And this is more text"]
@IBOutlet weak var collectionView: UICollectionView!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
collectionView.dataSource = self
collectionView.delegate = self
setUpCollectionView()
}
// setUpCollectionView()
func setUpCollectionView() {
if let flowLayOut = collectionView?.collectionViewLayout as? UICollectionViewFlowLayout {
flowLayOut.scrollDirection = .horizontal
flowLayOut.minimumLineSpacing = 0
}
}
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return textArray.count
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "cell", for: indexPath) as! TextCell
cell.textView.text = textArray[indexPath.row]
collectionView.isPagingEnabled = true
return cell
}
// MARK: - Make the cell fill the view size
func collectionView(_ collectionView: UICollectionView,
layout collectionViewLayout: UICollectionViewLayout,
sizeForItemAt indexPath: IndexPath) -> CGSize {
return CGSize(width: view.frame.width, height: view.frame.height / 2)
}
}
Be grateful for any help. What I'd like is for the cell to be consistently the full width of the frame whether in landscape or in portrait.
Screenshot in portrait(correct) !(https://photos.app.goo.gl/nozLPGF8X7E1aNDE6)
Screenshot in landscape(not correct) !https://photos.app.goo.gl/YCTJdmqVY6eKkpYS8
Screenshot in landscape(correct) https://photos.app.goo.gl/pjWyC1oZeckUuHE66
