Im new to programming and swift and working through iOS 13 for beginners. I have followed all steps and can't figure out out how to get past this issue. The app won't finish launching in simulator and is stuck on the launch screen. "could not dequeue a view of kind: UICollectionElementKindSectionHeader with identifier header - must register a nib or a class for the identifier or connect a prototype cell in a storyboard" error is in app delegate and I can't figure out where I would register a nib. The error is on the class declaration line.
import UIKit
@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
// Override point for customization after application launch.
return true
}
// MARK: UISceneSession Lifecycle
func application(_ application: UIApplication, configurationForConnecting connectingSceneSession: UISceneSession, options: UIScene.ConnectionOptions) -> UISceneConfiguration {
// Called when a new scene session is being created.
// Use this method to select a configuration to create the new scene with.
return UISceneConfiguration(name: "Default Configuration", sessionRole: connectingSceneSession.role)
}
func application(_ application: UIApplication, didDiscardSceneSessions sceneSessions: Set<UISceneSession>) {
// Called when the user discards a scene session.
// If any sessions were discarded while the application was not running, this will be called shortly after application:didFinishLaunchingWithOptions.
// Use this method to release any resources that were specific to the discarded scenes, as they will not return.
}
}
I feel like the error is something in this code connecting to the delegate.
import UIKit
class ExploreViewController: UIViewController, UICollectionViewDataSource, UICollectionViewDelegate {
func collectionView(_ collectionView: UICollectionView, viewForSupplementaryElementOfKind kind: String, at indexPath: IndexPath) -> UICollectionReusableView {
let headerView = collectionView.dequeueReusableSupplementaryView(ofKind: kind, withReuseIdentifier: "header", for: indexPath)
return headerView
}
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
20
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "exploreCell", for: indexPath)
return cell
}
@IBOutlet weak var collectionView: UICollectionView!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
}
@IBAction func unwindLocationCancel(segue:UIStoryboardSegue){
}
}
