无法从Android应用程序将图像添加到Firebase存储

Question

我正在遵循以下教程（https://www.youtube.com/watch?v=86dkYGeXMaU&list=PL0dzCUj1L5JE-jiBHjxlmXEkQkum_M3R-&index=3），在该教程中，我将创建一个注册页面，可以在其中注册用户到我的Firebase数据库以及将个人资料图片上传到存储。但是我似乎可以写到存储或实时数据库。

我尝试更改存储规则，目前我有这样的存储规则：

service firebase.storage {
  match /b/{bucket}/o {
    match /{allPaths=**} {
      allow read, write;
    }
  }
}

实时数据库规则如下：

{
  /* Visit https://firebase.google.com/docs/database/security to learn more about security rules. */
  "rules": {
    ".read": true,
    ".write": true
  }
}

我在gradle中使用了以下内容：

implementation 'com.google.firebase:firebase-core:17.0.0'
implementation 'com.google.firebase:firebase-auth:18.1.0'
implementation 'com.google.firebase:firebase-storage:18.1.0'
implementation 'com.google.firebase:firebase-database:18.0.0'

以下代码是我用来设置注册的代码：

    private fun performRegister() {
        val email = email_edittext_register.text.toString()
        val password = password_edittext_register.text.toString()

        if (email.isEmpty() || password.isEmpty()) {
            Toast.makeText(this, "Please enter text in email/pw", Toast.LENGTH_SHORT).show()
            return
        }

        Log.d(TAG, "Attempting to create user with email: $email")

        // Firebase Authentication to create a user with email and password
        FirebaseAuth.getInstance().createUserWithEmailAndPassword(email, password)
            .addOnCompleteListener {
                if (!it.isSuccessful) return@addOnCompleteListener

                // else if successful
                Log.d(TAG, "Successfully created user with uid: ${it.result!!.user.uid}")

                uploadImageToFirebaseStorage()
            }
            .addOnFailureListener{
                Log.d(TAG, "Failed to create user: ${it.message}")
                Toast.makeText(this, "Failed to create user: ${it.message}", Toast.LENGTH_SHORT).show()
            }
    }

以下是我用来将图像上传到Firebase的内容：

 private fun uploadImageToFirebaseStorage() {
        if (selectedPhotoUri == null) return

        val filename = UUID.randomUUID().toString()
        val ref = FirebaseStorage.getInstance().getReference("/images/$filename")

        ref.putFile(selectedPhotoUri!!)
            .addOnSuccessListener {
                Log.d(TAG, "Successfully uploaded image: ${it.metadata?.path}")

                ref.downloadUrl.addOnSuccessListener {
                    Log.d(TAG, "File Location: $it")

                    saveUserToFirebaseDatabase(it.toString())
                }
            }
            .addOnFailureListener {
                Log.d(TAG, "Failed to upload image to storage: ${it.message}")
            }
    }

最后，这就是我用来将用户保存到实时数据库的方法：

 private fun saveUserToFirebaseDatabase(profileImageUrl: String) {
        val uid = FirebaseAuth.getInstance().uid ?: ""
        val ref = FirebaseDatabase.getInstance().getReference("/users/$uid")

        val user = User(uid, username_edittext_register.text.toString(), profileImageUrl)

        ref.setValue(user)
            .addOnSuccessListener {
                Log.d(TAG, "Finally we saved the user to Firebase Database")
            }
            .addOnFailureListener {
                Log.d(TAG, "Failed to set value to database: ${it.message}")
            }
    }
}


class User(val uid: String, val username: String, val profileImageUrl: String)

我希望将图像存储在存储中，并在实时数据库中创建用户。