Android Kotlin Firebase:如何在用户创建新帐户时分配默认头像

implementation 'com.google.firebase:firebase-auth-ktx:21.0.1'

val email = "user@example.com"
val password = "password"

Firebase.auth.createUserWithEmailAndPassword(email, password)
    .addOnCompleteListener(this) { task ->
        if (task.isSuccessful) {
            // 用户创建成功
            val user = Firebase.auth.currentUser
            assignDefaultAvatar(user)
        } else {
            // 用户创建失败
            Toast.makeText(this, "用户创建失败", Toast.LENGTH_SHORT).show()
        }
    }

private fun assignDefaultAvatar(user: FirebaseUser?) {
    val defaultAvatarUrl = "https://example.com/default_avatar.jpg" // 默认头像图片的下载URL

    val profileUpdates = UserProfileChangeRequest.Builder()
        .setPhotoUri(Uri.parse(defaultAvatarUrl))
        .build()

    user?.updateProfile(profileUpdates)
        ?.addOnCompleteListener { task ->
            if (task.isSuccessful) {
                // 默认头像分配成功
                Toast.makeText(this, "默认头像分配成功", Toast.LENGTH_SHORT).show()
            } else {
                // 默认头像分配失败
                Toast.makeText(this, "默认头像分配失败", Toast.LENGTH_SHORT).show()
            }
        }
}