Image doesn't upload to firebase storage, swift - ios

Question

Here is the code
import UIKit
import Photos
import Firebase
import FirebaseStorage
class SignUpViewController: UIViewController {
#IBOutlet weak var userNameTextField: UITextField!
#IBOutlet weak var emailTextField: UITextField!
#IBOutlet weak var passwordTextField: UITextField!
#IBOutlet weak var errorLabel: UILabel!
#IBOutlet weak var tapToChangeButton: UIButton!
#IBOutlet weak var profileImageView: UIImageView!
var imagePickerController = UIImagePickerController()
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
userNameTextField.backgroundColor = .clear
userNameTextField.layer.cornerRadius = 27
userNameTextField.layer.borderWidth = 1
userNameTextField.layer.borderColor = UIColor.systemGreen.cgColor
emailTextField.backgroundColor = .clear
emailTextField.layer.cornerRadius = 27
emailTextField.layer.borderWidth = 1
emailTextField.layer.borderColor = UIColor.systemGreen.cgColor
passwordTextField.backgroundColor = .clear
passwordTextField.layer.cornerRadius = 27
passwordTextField.layer.borderWidth = 1
passwordTextField.layer.borderColor = UIColor.systemGreen.cgColor
let imageTap = UITapGestureRecognizer(target: self, action: #selector(openImagePicker))
profileImageView.isUserInteractionEnabled = true
profileImageView.addGestureRecognizer(imageTap)
profileImageView.layer.cornerRadius = profileImageView.bounds.height / 2
profileImageView.clipsToBounds = true
tapToChangeButton.addTarget(self, action: #selector(openImagePicker), for: .touchUpInside)
imagePickerController = UIImagePickerController()
imagePickerController.allowsEditing = true
imagePickerController.sourceType = .photoLibrary
imagePickerController.delegate = self
checkPermissions()
}
#objc func openImagePicker(_ sender:Any) {
// Open Image Picker
self.present(imagePickerController, animated: true, completion: nil)
}
func checkPermissions() {
if PHPhotoLibrary.authorizationStatus() != PHAuthorizationStatus.authorized {
PHPhotoLibrary.requestAuthorization({ (status:
PHAuthorizationStatus) -> Void in
()
})
}
if PHPhotoLibrary.authorizationStatus() == PHAuthorizationStatus.authorized {
} else {
PHPhotoLibrary.requestAuthorization(requestAuthorizationHandler)
}
}
func requestAuthorizationHandler(status: PHAuthorizationStatus) {
if PHPhotoLibrary.authorizationStatus() == PHAuthorizationStatus.authorized {
print("Have authorization")
} else {
print("Authorization declined")
}
}
After pressing the signUp button the uploadToCloud function should be performed but I don't know how to fetch the url from image picker
#IBAction func signupPressed(_ sender: UIButton) {
guard let username = self.userNameTextField.text, username.count > 3 else {
self.errorLabel.text = "Please enter a valid username"
return
}
guard let password = passwordTextField.text else {
self.errorLabel.text = "Please enter a valid password"
return
}
guard let email = emailTextField.text else {
self.errorLabel.text = "Please enter a valid email"
return
}
Auth.auth().createUser(withEmail: email, password: password) { authResult, error in
if let e = error {
self.errorLabel.text = e.localizedDescription
} else {
//Navigate to the ChatViewController
let db = Firestore.firestore()
db.collection("users").addDocument(data: ["username": username, "uid": authResult!.user.uid]) { (error) in
if let e = error {
// You may not want to show this error to the user but you should still show a "sanitised" error so that it doesn't leak information.
self.errorLabel.text = e.localizedDescription
} else {
self.performSegue(withIdentifier: "goToMap", sender: self)
}
}
}
}
}
func uploadToCloud(fileURL: URL) {
guard let uid = Auth.auth().currentUser?.uid else { return }
let storage = Storage.storage()
let data = Data()
let storageRef = storage.reference()
let localFile = fileURL
let photoRef = storageRef.child("users/\(uid)")
let uploadTask = photoRef.putFile(from: localFile, metadata: nil) { (metadata, error) in
guard let metadata = metadata else {
self.errorLabel.text = error?.localizedDescription
return
}
metadata.contentType = "image/jpg"
}
}
}
extension SignUpViewController: UIImagePickerControllerDelegate, UINavigationControllerDelegate {
func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
picker.dismiss(animated: true, completion: nil)
}
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
if let pickedImage = info[UIImagePickerController.InfoKey.editedImage] as? UIImage {
self.profileImageView.image = pickedImage
}
if let url = info[UIImagePickerController.InfoKey.imageURL] as? URL {
uploadToCloud(fileURL: url)
}
picker.dismiss(animated: true, completion: nil)
}
}

Answer 1

I don't understand your problem well, But I think the problem is your
uploadToCloud function.
This is another version of your function which is more easier to me
func uploadToCloud(with profileImage:UIImage){
let storage = Storage.storage().reference()
guard let uid = Auth.auth().currentUser?.uid else { return }
guard let imageData = profileImage.pngData() else{
return
}
storage.child("users/\(uid)").putData(imageData, metadata: nil) { (StorageMetadata, error) in
guard StorageMetadata != nil else{
print("oops an error occured while data uploading")
return
}
print("Image sent")
}
}