Issues Uploading Images and posts to Firebase 5 Database - ios

Question

I am currently trying to upload a photo URL and post caption onto my firebase database. The photos are currently being saved on firebase storage which is fine, however I would like for it to also appear on the firebase database.
I repeatedly find myself dealing with this error "Value of type 'StorageMetadata' has no member 'downloadURL'"
I understand that in firebase 5 to get the url from storage you need to call downloadURL on storage reference, not metadata. I have tried multiple ways and examples, but it all leads to errors.screenshot of error
#IBOutlet weak var photo: UIImageView!
#IBOutlet weak var captionTextView: UITextView!
#IBOutlet weak var removeButton: UIBarButtonItem!
#IBOutlet weak var shareButton: UIButton!
var selectedImage: UIImage?
override func viewDidLoad() {
super.viewDidLoad()
let tapGesture = UITapGestureRecognizer(target: self, action: #selector(self.handleSelectPhoto)); photo.addGestureRecognizer(tapGesture)
photo.isUserInteractionEnabled = true
}
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
handlePost()
}
func handlePost() {
if selectedImage != nil {
self.shareButton.isEnabled = true
self.removeButton.isEnabled = true
self.shareButton.backgroundColor = UIColor(red: 0, green: 0, blue: 0, alpha: 1)
}else{
self.shareButton.isEnabled = false
self.shareButton.backgroundColor = .lightGray
self.removeButton.isEnabled = false
}
}
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
view.endEditing(true)
}
#objc func handleSelectPhoto() {
let pickerController = UIImagePickerController()
pickerController.delegate = self
present(pickerController, animated: true, completion: nil)
}
#IBAction func shareButton_TouchUpInside(_ sender: Any) {
view.endEditing(true)
let hud = JGProgressHUD(style: .dark)
hud.textLabel.text = "Loading"
hud.show(in: self.view)
hud.dismiss(afterDelay: 3.0)
if let profileImg = self.selectedImage, let imageData = UIImageJPEGRepresentation(profileImg, 0.1) {
let photoIdString = NSUUID().uuidString
let storageRef = Storage.storage().reference(forURL: ".......").child("posts").child(photoIdString)
storageRef.putData(imageData, metadata: nil, completion: { (metadata, error) in
if error != nil {
return
}
//let photoUrl = url?.absoluteString
let photoUrl = metadata?.downloadURL()?.absoluteString
self.sendDataToDatabase(photoUrl: photoUrl!)
}
)}
}
#IBAction func remove_TouchUpInside(_ sender: Any) {
clean()
handlePost()
}
func sendDataToDatabase(photoUrl: String) {
let ref = Database.database().reference()
let postsReference = ref.child("posts")
let newPostId = postsReference.childByAutoId().key
let newPostReference = postsReference.child(newPostId)
newPostReference.setValue(["photoUrl": photoUrl, "caption": captionTextView.text!], withCompletionBlock: {
(error, ref) in
if error != nil {
ProgressHUD.showError(error!.localizedDescription)
return
}
ProgressHUD.showSuccess("Success")
self.clean()
self.tabBarController?.selectedIndex = 0 // switches user back to selected tabbar 0 = first 1 = second etc.
})
}
func clean() {
self.captionTextView.text = ""
self.photo.image = UIImage(named:"placeholder-photo")
self.selectedImage = nil
}
}
extension CameraViewController: UIImagePickerControllerDelegate,
UINavigationControllerDelegate {
func imagePickerController(_ picker: UIImagePickerController,
didFinishPickingMediaWithInfo info: [String : Any]) {
print("did finish picking media")
if let image = info["UIImagePickerControllerOriginalImage"]
as? UIImage {
selectedImage = image
photo.image = image
}
// profileImage.image = infoPhoto
dismiss(animated: true, completion: nil)
}
}

Answer 1

import UIKit
import ProgressHUD
import FirebaseStorage
import FirebaseDatabase
class CameraViewController: UIViewController {
#IBOutlet weak var photo: UIImageView!
#IBOutlet weak var shareButton: UIButton!
#IBOutlet weak var captionTextView: UITextView!
#IBOutlet weak var removeButton: UIBarButtonItem!
var selectedImage: UIImage?
override func viewDidLoad() {
super.viewDidLoad()
let tapGesture = UITapGestureRecognizer(target: self, action: #selector(self.handleSelectPhoto))
photo.addGestureRecognizer(tapGesture)
photo.isUserInteractionEnabled = true
}
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
handlePost()
}
func handlePost(){
if selectedImage != nil {
self.shareButton.isEnabled = true
self.removeButton.isEnabled = true
self.shareButton.backgroundColor = UIColor(red: 0, green: 0, blue: 0, alpha: 1)
} else {
self.shareButton.isEnabled = false
self.removeButton.isEnabled = false
self.shareButton.backgroundColor = .lightGray
}
}
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
view.endEditing(true)
}
#objc func handleSelectPhoto(){
let pickerController = UIImagePickerController()
pickerController.delegate = self
present(pickerController, animated: true, completion: nil)
}
// Share photos to the storage database
#IBAction func shareButton_TouchUpInside(_ sender: Any) {
view.endEditing(true)
ProgressHUD.show("Please wait...", interaction: false)
if let profileImg = self.selectedImage, let photoData = profileImg.jpegData(compressionQuality: 0.1) {
let photoIdString = NSUUID().uuidString
print(photoIdString)
let storageRef = Storage.storage().reference(forURL:Config.STORAGE_ROOT_REF).child("Posts").child(photoIdString)
storageRef.putData(photoData, metadata: nil, completion: { (metadata, error) in
if error != nil {
ProgressHUD.showError(error!.localizedDescription)
return
}
let photoUrl = metadata?.downloadURL()?.absoluteString
self.sendDataToDatabase(photoUrl: photoUrl!)
})
} else {
ProgressHUD.showError("Profile image can't be empty")
}
}
#IBAction func remove_touchUpInside(_ sender: Any) {
clean()
handlePost()
}
func sendDataToDatabase(photoUrl:String){
let ref = Database.database().reference()
let postsReference = ref.child("posts")
let newPostId = postsReference.childByAutoId().key
let newPostReference = postsReference.child(newPostId)
newPostReference.setValue(["photoUrl": photoUrl, "caption": captionTextView.text!], withCompletionBlock: {
(error, ref) in
if error != nil{
ProgressHUD.showError(error!.localizedDescription)
return
}
ProgressHUD.showSuccess("Success")
self.clean()
self.tabBarController?.selectedIndex = 0
})
}
func clean(){
self.captionTextView.text = ""
self.photo.image = UIImage(named: "placeholder-img")
self.shareButton = nil
}
}
extension CameraViewController : UIImagePickerControllerDelegate, UINavigationControllerDelegate {
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
print("did Finish picking media")
if let chosenImage = info[.originalImage] as? UIImage {
selectedImage = chosenImage
photo.image = chosenImage
}
dismiss(animated: true, completion: nil)
}
}
Use Above code, it will successfully upload the image and post that to the Firebase Database