[swift]firebaseを利用した画像の読み取りについて

SNSにおいてfirebaseを利用して、画像を読み取り表示しようとしています。仕組みとしては、フォローしている人のIDと同じ画像を検索し、tableviewに表示しています。tablecellに関してはXIBファイルを利用しています。その際に、アプリを起動してすぐには、画像がうまく表示されず、別機能のユーザーの画像変更処理を行うと、画像が変更できます。これを起動してすぐに表示されるようにしたいと考えています。

発生している問題・エラーメッセージ

エラーメッセージはありません。

エラーメッセージ

該当のソースコード

houseviewcontroller
1import UIKit
2import Firebase
3import FirebaseOAuthUI
4import FirebaseStorageUI
5
6class houseViewController: UIViewController {
7    var appDelegate:AppDelegate = UIApplication.shared.delegate as! AppDelegate
8    @IBOutlet weak var tableView: UITableView!
9    let storage = Storage.storage()
10    let df = DateFormatter()
11    var db: Firestore!
12    let settings = FirestoreSettings()
13    var followpeople = [Any]() {
14        didSet{
15            self.followpost = []
16            for i in self.followpeople{
17                
18                self.db.collection("post").whereField("hostid", isEqualTo: i)
19                    .getDocuments() { (querySnapshot, err) in
20                        if let err = err {
21                            print("Error getting documents: (err)")
22                        } else {
23                            for document in querySnapshot!.documents {
24                                self.followpost.append(document.data())
25                                print(self.followpost)
26                            }
27                }
28            }
29                self.tableView.reloadData()
30        }
31        }
32        }
33    
34    
35    var followpost = [[String:Any]](){didSet{
36            self.tableView.reloadData()
37    }}
38    override func loadView() {
39        super.loadView()
40        Firestore.firestore().settings = settings
41        db = Firestore.firestore()
42        let user = Auth.auth().currentUser
43        if let user = user {
44          // The user's ID, unique to the Firebase project.
45          // Do NOT use this value to authenticate with your backend server,
46          // if you have one. Use getTokenWithCompletion:completion: instead.
47          let uid = user.uid
48          let email = user.email
49          let photoURL = user.photoURL
50            let displayName = user.displayName
51          var multiFactorString = "MultiFactor: "
52          for info in user.multiFactor.enrolledFactors {
53            multiFactorString += info.displayName ?? "[DispayName]"
54            multiFactorString += " "
55          }
56        }
57        
58        let ref = db.collection("users").document(user!.uid).collection("follow").document("follow")
59        ref.getDocument{ (document, error) in
60            if let document = document {
61                for i in document.data()!{
62                    self.followpeople.append(i.value)
63                print(self.followpeople)
64                }
65            }else{
66                print("Document does not exist")
67            }
68        }
69    }
70    override func viewDidLoad() {
71        super.viewDidLoad()
72        let nib = UINib(nibName: "TableViewCell", bundle: nil)
73        tableView.register(nib, forCellReuseIdentifier: "postcell")
74        // Do any additional setup after loading the view.
75    }
76   
77    /*
78    // MARK: - Navigation
79
80    // In a storyboard-based application, you will often want to do a little preparation before navigation
81    override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
82        // Get the new view controller using segue.destination.
83        // Pass the selected object to the new view controller.
84    }
85    */
86
87}
88extension houseViewController:UITableViewDelegate,UITableViewDataSource{
89    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
90        return followpost.count
91    }
92    
93    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
94        let cell = tableView.dequeueReusableCell(withIdentifier: "postcell", for: indexPath) as! TableViewCell
95        cell.post = followpost[indexPath.row]
96        cell.updateUI()
97        return cell
98        cell.updateUI()
99    }
100    
101    func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
102        appDelegate.selectpost = followpost[indexPath.row]
103    performSegue(withIdentifier: "momorere", sender: nil)
104    }
105}
106

UItableViewCell
1import UIKit
2import Firebase
3import FirebaseStorageUI
4import FirebaseOAuthUI
5class TableViewCell: UITableViewCell {
6
7    @IBOutlet weak var userProfilePic: UIImageView!
8    @IBOutlet weak var userName: UILabel!
9    @IBOutlet weak var postDay: UILabel!
10    @IBOutlet weak var postPic: UIImageView!
11    @IBOutlet weak var overview: UILabel!
12    @IBOutlet weak var join: UIButton!
13    @IBOutlet weak var comment: UIButton!
14    private var joindid: Bool = false
15    //FIREBASE関連
16    var db: Firestore!
17    let settings = FirestoreSettings()
18    let storage = Storage.storage()
19    
20    
21    var post = [String:Any](){
22        didSet{
23            updateUI()
24        }
25    }
26     func updateUI(){
27        //画像を丸める
28        userProfilePic.layer.cornerRadius = userProfilePic.layer.bounds.width/2
29        postPic.layer.cornerRadius = 5.0
30        postPic.clipsToBounds = true
31    
32
33        let storageRef = StorageReference()
34        let postpicRef = storageRef.child(post["photo1"]! as! String)
35        postpicRef.downloadURL { url, error in
36          if let error = error {
37            // Handle any errors
38          } else {
39            let imageView: UIImageView = self.postPic
40
41            // Placeholder image
42            let placeholderImage = UIImage(named: "placeholder.jpg")
43
44            // Load the image using SDWebImage
45            imageView.sd_setImage(with: postpicRef, placeholderImage: placeholderImage)
46          }
47        }
48        
49        
50        let userpicRef = storageRef.child(post["userImageURL"]! as! String)
51        userpicRef.downloadURL { url, error in
52          if let error = error {
53            // Handle any errors
54          } else {
55            let imageView: UIImageView = self.userProfilePic
56            // Placeholder image
57            let placeholderImage = UIImage(named: "placeholder2.jpg")
58
59            // Load the image using SDWebImage
60            imageView.sd_setImage(with: userpicRef, placeholderImage: placeholderImage)
61          }
62        }
63        userName.text! = post["hostname"] as! String
64        postDay.text! = post["postday"] as! String
65        
66        overview.text! = post["title"] as! String
67        configureBottunAppearence()
68    }
69    private func configureBottunAppearence(){
70        //参加ボタン
71        join.layer.cornerRadius = 3.0
72        join.layer.borderWidth = 2.0
73        join.layer.borderColor = #colorLiteral(red: 0.8039215803, green: 0.8039215803, blue: 0.8039215803, alpha: 1)
74        join.backgroundColor = #colorLiteral(red: 1, green: 0.5964409709, blue: 0.3063230217, alpha: 1)
75        join.tintColor = #colorLiteral(red: 1.0, green: 1.0, blue: 1.0, alpha: 1.0)
76        
77        //参加ボタン
78        comment.layer.cornerRadius = 3.0
79        comment.layer.borderWidth = 2.0
80        comment.layer.borderColor = #colorLiteral(red: 0.8039215803, green: 0.8039215803, blue: 0.8039215803, alpha: 1)
81        comment.backgroundColor = #colorLiteral(red: 1, green: 0.5964409709, blue: 0.3063230217, alpha: 1)
82        comment.tintColor = #colorLiteral(red: 1.0, green: 1.0, blue: 1.0, alpha: 1.0)
83        
84    }
85    override func awakeFromNib() {
86        super.awakeFromNib()
87        // Initialization code
88    }
89
90    override func setSelected(_ selected: Bool, animated: Bool) {
91        super.setSelected(selected, animated: animated)
92
93        // Configure the view for the selected state
94    }
95   
96    @IBAction func commentButtonClicked(_ sender: Any) {
97        
98    }
99    @IBAction func joinButtonClicked(_ sender: Any) {
100       
101       
102    }
103    
104}