Transferring Image (Downloaded from Firebase) into collection View Cell on home Page - swift

Question

Im trying to transfer an image between two view controllers. It is a profile image of the current logged in User, if there is one. The image is successful in downloading from Firebase. It downloads on a launch screen along with the username. If there is no user logged in, view controller changes to a login screen, if there is a logged in user it transfers to a home screen.
This is the launch screen. Both the username label and the image view are clear so user cannot see.
import UIKit
import Firebase
class LaunchScreen: UIViewController {
#IBOutlet weak var usernameLabel: UILabel!
#IBOutlet weak var userImage: UIImageView!
var ref : DatabaseReference!
var storage: StorageReference!
override func viewDidLoad() {
super.viewDidLoad()
ref = Database.database().reference()
storage = Storage.storage().reference()
checkUser()
// Do any additional setup after loading the view.
}
func checkUser() {
Auth.auth().addStateDidChangeListener { (auth, user) in
if user != nil {
let uid = Auth.auth().currentUser?.uid
self.ref.database.reference().child("users/profile").child(uid!).observe(.value, with: { (snapshot: DataSnapshot) in
if let dictionary = snapshot.value as? [String: AnyObject] {
let currentUser = dictionary["username"] as! String
let url = dictionary["photoURL"] as! String
let storageRef = self.storage.storage.reference(forURL: url)
storageRef.getData(maxSize: 1 * 1024 * 1024, completion: { (data, error) in
if let error = error {
print(error)
} else {
self.userImage.image = UIImage(data: data!)
self.reloadInputViews()
}
})
guard let image = self.userImage.image else {return}
self.usernameLabel.text = currentUser
let imageJPG = image.jpegData(compressionQuality: 1)
print(imageJPG?.count)
let defaults = UserDefaults.standard
defaults.set(self.usernameLabel.text, forKey: "user")
defaults.synchronize()
}
})
_ = Timer.scheduledTimer(withTimeInterval: 3.0, repeats: false, block: { (timer) in
let vc = self.storyboard?.instantiateViewController(withIdentifier: "homeVC")
self.present(vc!, animated: true, completion: nil)
})
print("loggedIn")
} else {
_ = Timer.scheduledTimer(withTimeInterval: 3.0, repeats: false, block: { (timer) in
let loginvc = self.storyboard?.instantiateViewController(withIdentifier: "loginVC")
self.present( loginvc!,animated: true, completion: nil)
})
print("loggedOut")
}
}
}
}
This is my home page. where there is a side menu. the side menu pops open from the left hand side of the screen and on it are four collection view cells. the top one is the profile cell which will display the username and the user profile image. that image is where I want the downloaded Firebase userImage in launchScreenVC to be transferred too.
class home VC: UIViewController {
#IBOutlet weak var profileMenuButton: UIButton!
override func viewDidLoad() {
super.viewDidLoad()
collectionView.delegate = self
collectionView.dataSource = self
collectionView.reloadData()
}
let blackView = UIView()
let collectionView: UICollectionView = {
let layout = UICollectionViewFlowLayout()
let cv = UICollectionView(frame: .zero , collectionViewLayout: layout )
cv.backgroundColor = UIColor.init(displayP3Red: 50/255, green: 51/255, blue: 51/255, alpha: 1)
return cv
}()
#IBAction func profileMenu() {
let width = view.frame.width - 60
collectionView.frame = CGRect(x: 0, y: 0, width: width, height: view.frame.height)
blackView.backgroundColor = UIColor(white: 0, alpha: 0.5)
blackView.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(handleDismiss)))
blackView.frame = view.frame
blackView.alpha = 0
view.addSubview(blackView)
view.addSubview(collectionView)
UIView.animate(withDuration: 1.5, delay: 0, options: .curveEaseOut, animations: {
self.blackView.alpha = 1
self.collectionView.frame = CGRect(x: 0 , y: 0, width: width, height: self.view.frame.height)
}, completion: nil)
handleSearchDismiss(searchView)
}
#objc func handleDismiss() {
UIView.animate(withDuration: 0.5){
if let window = UIApplication.shared.keyWindow {
self.collectionView.frame = CGRect(x: 0 - (window.frame.width), y: 0, width: window.frame.width, height: self.collectionView.frame.height)
}
self.blackView.alpha = 0
}
}
}
extension homeVC: UICollectionViewDataSource, UICollectionViewDelegate, UICollectionViewDelegateFlowLayout, {
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
if indexPath.item == 0 {
let cell1 = collectionView.dequeueReusableCell(withReuseIdentifier: "ProfileCellID", for: indexPath) as! profileCell
let defaults = UserDefaults.standard
cell1.usernameLabel.text = (defaults.object(forKey: "user") as! String)
cell1.usernameLabel.textColor = UIColor.lightGray
cell1.usernameLabel.font = UIFont.boldSystemFont(ofSize: 25)
// print(imageData)
// cell1.profileImage.image = (defaults.object(forKey: "userImage") as! Data)
return cell1
} else if indexPath.item == 1{
let cell2 = collectionView.dequeueReusableCell(withReuseIdentifier: "Settings", for: indexPath) as! settingsCell
return cell2
} else if indexPath.item == 2 {
let cell3 = collectionView.dequeueReusableCell(withReuseIdentifier: "Favourites", for: indexPath) as! favouritesCell
return cell3
} else {
let cell4 = collectionView.dequeueReusableCell(withReuseIdentifier: "Logout", for: indexPath) as! logoutCell
return cell4
}
}
}
this is the profile cell class
class profileCell: UICollectionViewCell {
override init(frame: CGRect) {
super.init(frame: frame)
setUpViews()
}
let profileImage: UIImageView = {
let imageView = UIImageView()
return imageView
}()
let usernameLabel: UILabel = {
let label = UILabel()
return label
}()
func setUpViews() {
addSubview(profileImage)
addSubview(usernameLabel)
profileImage.frame = CGRect(x: (center.x)-60, y: 30, width: 120, height: 120)
profileImage.layer.cornerRadius = (profileImage.frame.width/2)
usernameLabel.frame = CGRect(x: (center.x)-60, y: 125, width: 120, height: 120)
usernameLabel.textAlignment = NSTextAlignment.center
}
required init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
}
Any Help or tips would be greatly appreciated! Thanks Guys!