將錯誤的圖片上傳到我的Firebase存儲

Question

一切正常。我看到一張圖片正在上傳到我的Firebase存儲中，唯一的問題是，這是我作爲imageview放置的圖像，而不是從相機膠捲中選擇的圖像。

import UIKit 
import Firebase 

class ProfileViewController: UIViewController,  UIImagePickerControllerDelegate, UINavigationControllerDelegate { 

@IBOutlet weak var profilePicture: UIImageView! 

@IBAction func dismissButton(_ sender: Any) { 
self.dismiss(animated: true, completion: nil) 
} 

override func viewDidLoad() { 
    super.viewDidLoad() 
    profilePicture.translatesAutoresizingMaskIntoConstraints = false 
    profilePicture.addGestureRecognizer(UITapGestureRecognizer(target:self, action: #selector(handleSelectProfileImageView))) 
    guard let uid = FIRAuth.auth()?.currentUser?.uid else { 
     return 
    } 

    let imageName = NSUUID().uuidString 
    let storageRef = FIRStorage.storage().reference().child("Profile_Images").child("\(imageName).jpg") 

    if let uploadData = UIImageJPEGRepresentation(self.profilePicture.image!, 0.1){ 
    storageRef.put(uploadData, metadata: nil, completion: { (metadata, error) in 

    if error != nil{ 
     print(error as Any) 
     return 
    } 
     if let profileImageURL = metadata?.downloadURL()?.absoluteString { 
     let values = ["profileImageUrl": profileImageURL]; 

     self.registerUserIntoDatabaseWithUID(uid: uid, values: values as [String : AnyObject]) 
     } 
    }) 
} 
} 
    private func registerUserIntoDatabaseWithUID(uid: String, values:[String: AnyObject]) { 
    let ref = FIRDatabase.database().reference(fromURL:"") 
    let usersReference = ref.child("Users").child(uid) 
    usersReference.updateChildValues(values, withCompletionBlock: { (err,ref) in 

     if err != nil { 
      print(err as Any) 
      return 
     } 


    }) 
} 


func handleSelectProfileImageView() { 
    let picker = UIImagePickerController() 
    picker.delegate = self 
    picker.allowsEditing = true 

    present(picker, animated: true, completion:nil) 

    } 
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) { 

    var selectedImageFromPicker:UIImage? 
    if let editedImage = info["UIImagePickerControllerEditedImage"] as? UIImage{ 
     selectedImageFromPicker = editedImage 
    }else if let originalImage = info["UIIMagePickerControllerOriginalImage"] as? UIImage{ 

     selectedImageFromPicker = originalImage 

    } 
    if let selectedImage = selectedImageFromPicker{ 
     profilePicture.image = selectedImage 
    } 

    dismiss(animated: true, completion: nil) 

} 

func imagePickerControllerDidCancel(_ picker: UIImagePickerController) { 
    print("canceled picker") 
    dismiss(animated: true, completion: nil) 

     } 

    } 

Answer 1

您正在將圖像上載到您的imageView中的viewDidLoad中。因此，它會始終將您放入imageView中的圖像作爲佔位符上傳。

見這個例子：

func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) { 

    var selectedImageFromPicker: UIImage? 

    if let editedImage = 
     info["UIImagePickerControllerEditedImage"] as? UIImage { 
     selectedImageFromPicker = editedImage 
    } else if let originalImage = 
     info["UIImagePickerControllerOriginalImage"] as? UIImage{ 
     selectedImageFromPicker = originalImage 
    } 

    if let selectedImage = selectedImageFromPicker { 
     updateAvatarImageInFirebase(image: selectedImage) 
    } 

    dismiss(animated: true, completion: nil) 
} 


func updateAvatarImageInFirebase(image: UIImage){ 

    let user = FIRAuth.auth()?.currentUser 

    guard let uid = user?.uid else { 
     return 
    } 

    if user != nil { 
     let storageRef = FIRStorage.storage().reference().child("users").child(uid).child("profileImage.jpg") 

     if let uploadData = UIImageJPEGRepresentation(image, 0.2) { 
      storageRef.put(uploadData, metadata: nil, completion: { (metadata, error) in 

       if error != nil { 
        print(error!) 
        return 
       } 

       if let profileImageUrl = metadata?.downloadURL()?.absoluteString { 
        FIRDatabase.database().reference().child("users").child(uid).updateChildValues(["profileImageUrl": profileImageUrl]) 
       } 
      }) 
     } 
    } 
}