프로그래밍 방식

Question

여기에 내가

import UIKit 

class UserProfileController : UICollectionViewController, UICollectionViewDelegateFlowLayout{ 

    override func viewDidLoad() { 
     super.viewDidLoad() 
     collectionView?.backgroundColor = .white 

     //NEED TO UPDATE: GET USERNAME TO AND SET NAVTITLE 
     fetchUser() 

     //UPDATE ALL USER PAGE INFO IN 

     collectionView?.register(UICollectionViewCell.self, forSupplementaryViewOfKind: UICollectionElementKindSectionHeader, withReuseIdentifier: "headerId") 
    } 

    fileprivate func fetchUser(){ 
     //Assumed loged in get user ID 
     //guard let uid = currentUser?.uid else {return} 

     //NEED TO UPDATE: GET USERNAME FROM USER ID HASH 
     let username = "User Profile" 
     navigationItem.title = username 
    } 

    override func collectionView(_ collectionView: UICollectionView, viewForSupplementaryElementOfKind kind: String, at indexPath: IndexPath) -> UICollectionReusableView { 
     let header = collectionView.dequeueReusableSupplementaryView(ofKind: kind, withReuseIdentifier: "headerId", for: indexPath) 

     header.backgroundColor = .green 

     return header 
    } 

    func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, referenceSizeForHeaderInSection section: Int) -> CGSize { 
     return CGSize(width: view.frame.width, height: 200) 
    } 
} 

이 모두가 나에게 좋아 보이는이 그 코드입니다, 메신저 확실하지가 그 여기에 잘못이 무엇인지. 고급

Answer 1

에서

덕분에 게시 된 아무것도 코드로 짜있을 것 같지 않습니다. 스토리 보드에 문제가 있습니까?