每个用户都有相同的个人资料图片（Firebase / Swift）

Question

下午好社区，

在我的 Swift 应用中，每个用户都有相同的个人资料图片，该图片已上传到 Firebase 存储。我怎样才能改变它，让每个用户都有自己独特的头像？

我如何上传图片：

   @IBAction func UploadImage(_ sender: Any) {
        
        
        let picker = UIImagePickerController()
        
        picker.sourceType = .photoLibrary
        
        picker.delegate = self
        picker.allowsEditing = true
        present(picker, animated: true)
        
        
        
    }
    
    func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
        picker.dismiss(animated: true, completion: nil)
        guard let image = info[UIImagePickerController.InfoKey.editedImage] as? UIImage else {
            return
        }
        guard let imageData = image.pngData() else {
            return
        }
        
    
        
            storage.child("images/file.png").putData(imageData, metadata: nil, completion: { _, error in
            guard error == nil else {
                print("Failed to upload")
                return
            }
            
            
            
            
        })
        
        
    }

    
    func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
        picker.dismiss(animated: true, completion: nil)
    }
    
    
}

我如何下载它们：

func downloadImages() {
    
    let storageRef = Storage.storage().reference()
    
    
    
    
    // Reference to an image file in Firebase Storage
    let reference = storageRef.child("images/file.png")

    // UIImageView in your ViewController
    let imageView: UIImageView = self.imageView

    // Placeholder image
    let placeholderImage = UIImage(named: "placeholder.jpg")

    // Load the image using SDWebImage
    imageView.sd_setImage(with: reference, placeholderImage: placeholderImage)
        
        
   
}

感谢您的帮助！！！我在这里没有发现这个问题...

编辑： 为每个用户下载图片

 if Auth.auth() != nil {
        let storageRef = Storage.storage().reference()
        
        
        
        
        // Reference to an image file in Firebase Storage
        let reference = storageRef.child("images/"+Auth.auth().currentUser!.uid+".png")

        // UIImageView in your ViewController
        let imageView: UIImageView = self.imageView

        // Placeholder image
        let placeholderImage = UIImage(named: "placeholder.jpg")

        // Load the image using SDWebImage
        imageView.sd_setImage(with: reference, placeholderImage: placeholderImage)
            
            
       
    }

Answer 1

您的所有用户现在都在 Firestore 存储中写入完全相同的文件：

storage.child("images/file.png").putData(imageData, metadata: nil, completion: { _, error in

要为每个用户提供一个唯一的文件，您需要在 Storage 中的文件路径中包含一些可以识别用户的内容。通常，您将在 Firebase 身份验证中使用用户的 UID。

所以你会 get the signed in user 然后在路径中使用他们的 UID：

if Auth.auth().currentUser != nil {
    storage.child("images/"+Auth.auth().currentUser.uid+"+.png").putData(imageData, metadata: nil, completion: { _, error in
        ...
}

在阅读方面，您需要list the files，并分别显示它们。