ios 正在将图像上传到 Firebase，但在我尝试下载时却没有？

Question

我正在尝试将我的 userProfile 图像上传到 Firebase，尽管上传成功，但是当我通过 Firebase 控制台上的下载链接下载它时，它会作为文档文件下载，而不是我上传的 jpg 文件？ 另外，当我将图像设置为特定图像时，我的 UIImage 接管了 View Controller 中的所有 View 。

这是我的代码:

@IBAction func registerRegisterButton(_ sender: UIButton) {
    let userProfileImageRef = self.storage.reference().child("userProfileImage")

    //testing image setup
    self.registerUserProfileImage.image = UIImage(named:"puppy.jpg")

    // Registering user with email
    Auth.auth().createUser(withEmail: registerUserEmailTextField.text!, password: registerUserPasswordTextField.text!) { (user, error) in

        if error != nil {
            print(error)
        } else {
            print("Registration complete")

            // if register succcessful, we upload the user profile image to firebase
            let data = Data()

            //uploading user profile picture
            if let uploadData = UIImagePNGRepresentation(self.registerUserProfileImage.image!) {
                userProfileImageRef.putData(uploadData, metadata: nil, completion: { (metadata, error) in

                    if error != nil {
                        print(error)
                        return
                    } else {
                        print("Success upload!")
                        self.dismiss(animated: true, completion: nil)
                        self.performSegue(withIdentifier: "registrationCompleteSegue", sender: self)
                    }
                })

            }
        }
    }
}

感谢您提前提供的帮助

Answer 1

我认为您正在尝试下载 Image 的 URL 并将其设置到 ImageView 中。如果是，则创建一个 StorageMetadata 类型的元数据，并将内容类型设置为image/jpeg。然后将其传递到 Firebase Reference 的 putData 方法中，并使用 putData 方法的 metadata 参数获取 ImageURL。

let metaData = StorageMetadata()
metaData.contentType = "image/jpg"

        if let uploadData = UIImagePNGRepresentation(self.registerUserProfileImage.image!, 0.8) as NSData {

           userProfileImageRef.putData(uploadData as Data, metadata: metaData, completion: { (metadata, error) in

                if error != nil {
                    print(error)
                    return
                } else {
                    print("Success upload!")
                    var imageURL = (metadata?.downloadURLs?[0].absoluteString)!  //Here's your image url. Then just set it to ImageView

                    self.dismiss(animated: true, completion: nil)
                    self.performSegue(withIdentifier: "registrationCompleteSegue", sender: self)
                }
           })
       }

用于设置带 URL 的图像。请检查此链接 https://stackoverflow.com/a/43486949/4608334