Firebase iOS Codelab Swift Step 9 - swift code out of date

[PDMackinnon]

Again, correct code found in the final swift project folder. Copied below:

 func imagePickerController(_ picker: UIImagePickerController,
      didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
    picker.dismiss(animated: true, completion:nil)
    guard let uid = Auth.auth().currentUser?.uid else { return }

    // if it's a photo from the library, not an image from the camera
    if #available(iOS 8.0, *), let referenceURL = info[UIImagePickerController.InfoKey.referenceURL] as? URL {
      let assets = PHAsset.fetchAssets(withALAssetURLs: [referenceURL], options: nil)
      let asset = assets.firstObject
      asset?.requestContentEditingInput(with: nil, completionHandler: { [weak self] (contentEditingInput, info) in
        let imageFile = contentEditingInput?.fullSizeImageURL
        let filePath = "\(uid)/\(Int(Date.timeIntervalSinceReferenceDate * 1000))/\((referenceURL as AnyObject).lastPathComponent!)"
        guard let strongSelf = self else { return }
        strongSelf.storageRef.child(filePath)
          .putFile(from: imageFile!, metadata: nil) { (metadata, error) in
            if let error = error {
              let nsError = error as NSError
              print("Error uploading: \(nsError.localizedDescription)")
              return
            }
            strongSelf.sendMessage(withData: [Constants.MessageFields.imageURL: strongSelf.storageRef.child((metadata?.path)!).description])
          }
      })
    } else {
      guard let image = info[UIImagePickerController.InfoKey.originalImage] as? UIImage else { return }
      let imageData = image.jpegData(compressionQuality: 0.8)
      let imagePath = "\(uid)/\(Int(Date.timeIntervalSinceReferenceDate * 1000)).jpg"
      let metadata = StorageMetadata()
      metadata.contentType = "image/jpeg"
      self.storageRef.child(imagePath)
        .putData(imageData!, metadata: metadata) { [weak self] (metadata, error) in
          if let error = error {
            print("Error uploading: \(error)")
            return
          }
          guard let strongSelf = self else { return }
          strongSelf.sendMessage(withData: [Constants.MessageFields.imageURL: strongSelf.storageRef.child((metadata?.path)!).description])
      }
    }
  }

[samtstern]

@morganchen12 another one like https://github.com/firebase/codelab-friendlychat-ios/issues/133