如何将图像正确上传到Firebase存储器

Question

[我的个人资料图像上传到Firebase存储时，没有照片出现，但是我的代码中没有错误，如何解决此问题，以将我的用户个人资料图像正确上传到Firebase存储？

let uid = user.uid
let storageRef = Storage.storage().reference(forURL: "gs://tvmassmedianetwork.appspot.com").child("profile_Image").child(uid)
if let ProfileImge = self.SelectedImage, let imagedata = ProfileImge.jpegData(compressionQuality: 0.1) {
    storageRef.putData(imagedata, metadata: nil) { (metadata, error) in
        if error != nil {
            return
        }

        let ProfileImageUrl = metadata?.storageReference?.downloadURL(completion: )
        let ref = Database.database().reference()
        let UsersReference = ref.child("users").child(user.uid)
        let newUsersReference = UsersReference.child(uid)
        newUsersReference.setValue(["username": self.UsernameTextField.text ?? "" as Any, "email":  self.EmailTextField.text ?? "", "ProfileImageUrl": ProfileImageUrl ?? ""])
    }
}

func uploadImage(withId id: String) {
    guard let imageData = self.SelectedImage?.jpegData(compressionQuality: 0.7) else { return }
    Storage.storage().reference(withPath: "usersImages/\(id).jpg").putData(imageData, metadata: nil) { (metaData, error) in
        if error == nil{
            print("Image has been uploaded!")
        }
    }
}

Answer 1

获取downloadURL需要调用服务器，因此是异步操作。下载URL仅在可以传递到downloadURL方法的闭包中可用。

因此您可以使用类似的方法将其放入数据库：

metadata?.storageReference?.downloadURL( url, error in
  if let error = error {
    // Handle any errors
  } else {
    let ref = Database.database().reference()
    let UsersReference = ref.child("users").child(user.uid)
    let newUsersReference = UsersReference.child(uid)
    newUsersReference.setValue(["username": self.UsernameTextField.text ?? "" as Any, "email":  self.EmailTextField.text ?? "", "ProfileImageUrl": url ?? ""])
  }
}

---

我认为此代码段看起来也很奇怪：

let UsersReference = ref.child("users").child(user.uid)
let newUsersReference = UsersReference.child(uid)

它可能应该是：

let UsersReference = ref.child("users")
let newUsersReference = UsersReference.child(uid)

另请参阅：

• Value of type 'StorageMetadata' has no member 'downloadURL'