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首页 > 解决方案 > 与 firebase 集成的 Unity 可在 Unity 编辑器上运行，但不能在移动设备上运行

c# - 与 firebase 集成的 Unity 可在 Unity 编辑器上运行，但不能在移动设备上运行

问题描述

我在 Unity 2020.3.0.f1 上创建了一个简单的应用程序，并集成了 Firebase sdk 7.1.0。我基本上是在对 firebase 进行简单的读写操作。它在 Unity 编辑器中运行良好，但在移动版本中运行良好，尽管 apk 构建是 100% 成功的。

操作系统：Ubuntu 20.04(LTS)。

这是我的简单代码

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using Firebase.Database;
using TMPro;

public class firebase_script : MonoBehaviour
{
    DatabaseReference reference;
    string text_place;
    public TextMeshProUGUI text;

    // Start is called before the first frame update
    void Start()
    {
        reference= FirebaseDatabase.DefaultInstance.RootReference;
    }
    public void get_updates(){
        reference.Child("plant").GetValueAsync().ContinueWith(task => {
            if(task.IsFaulted){
                Debug.Log("Failed to fetch Value");
            }
            else if(task.IsCompleted){
                DataSnapshot snapshot =task.Result;
                text_place=snapshot.Child("moisture").Value.ToString();
                
            }
        });
    }

    // Update is called once per frame
    void Update()
    {
        text.text=text_place;   
    }
}

编辑：当我看到 logcat 时，我发现 Firebase 应用程序初始化失败，但在统一编辑器中工作时看不到此类错误，并且该应用程序在 Unity 编辑器中运行良好，但在 Android 设备中却没有

03-23 00:45:45.253  9618  9707 I Unity   : Company Name: <Striped>
03-23 00:45:45.253  9618  9707 I Unity   : Product Name: <Striped>
03-23 00:45:48.719  9618  9707 E Unity   : InitializationException:  Firebase app creation failed.
03-23 00:45:48.719  9618  9707 E Unity   :   at Firebase.FirebaseApp.CreateAndTrack (Firebase.FirebaseApp+CreateDelegate createDelegate, Firebase.FirebaseApp existingProxy) [0x000e3] in <efce830506c14731bd3b7a14d631487d>:0 
03-23 00:45:48.719  9618  9707 E Unity   :   at Firebase.FirebaseApp.Create () [0x00027] in <efce830506c14731bd3b7a14d631487d>:0 
03-23 00:45:48.719  9618  9707 E Unity   :   at Firebase.FirebaseApp.get_DefaultInstance () [0x00017] in <efce830506c14731bd3b7a14d631487d>:0 
03-23 00:45:48.719  9618  9707 E Unity   :   at Firebase.Database.FirebaseDatabase.get_DefaultInstance () [0x00000] in <265179cd3d324ba1be0c68f88dea310a>:0 
03-23 00:45:48.719  9618  9707 E Unity   :   at firebase_script.Start () [0x00000] in <a8ca21255e29484580e851c97ded26fa>:0 
03-23 00:45:48.719  9618  9707 E Unity   : 
03-23 00:45:48.739  9618  9707 E Unity   : InitializationException:  Firebase app creation failed.
03-23 00:45:48.739  9618  9707 E Unity   :   at Firebase.FirebaseApp.CreateAndTrack (Firebase.FirebaseApp+CreateDelegate createDelegate, Firebase.FirebaseApp existingProxy) [0x000e3] in <efce830506c14731bd3b7a14d631487d>:0 
03-23 00:45:48.739  9618  9707 E Unity   :   at Firebase.FirebaseApp.Create () [0x00027] in <efce830506c14731bd3b7a14d631487d>:0 
03-23 00:45:48.739  9618  9707 E Unity   :   at Firebase.FirebaseApp.get_DefaultInstance () [0x00017] in <efce830506c14731bd3b7a14d631487d>:0 
03-23 00:45:48.739  9618  9707 E Unity   :   at Firebase.Database.FirebaseDatabase.get_DefaultInstance () [0x00000] in <265179cd3d324ba1be0c68f88dea310a>:0 
03-23 00:45:48.739  9618  9707 E Unity   :   at button_script.Start () [0x00000] in <a8ca21255e29484580e851c97ded26fa>:0 
03-23 00:45:48.739  9618  9707 E Unity   : 
03-23 00:45:48.759  9618  9707 E Unity   : InitializationException:  Firebase app creation failed.
03-23 00:45:48.759  9618  9707 E Unity   :   at Firebase.FirebaseApp.CreateAndTrack (Firebase.FirebaseApp+CreateDelegate createDelegate, Firebase.FirebaseApp existingProxy) [0x000e3] in <efce830506c14731bd3b7a14d631487d>:0 
03-23 00:45:48.759  9618  9707 E Unity   :   at Firebase.FirebaseApp.Create () [0x00027] in <efce830506c14731bd3b7a14d631487d>:0 
03-23 00:45:48.759  9618  9707 E Unity   :   at Firebase.FirebaseApp.get_DefaultInstance () [0x00017] in <efce830506c14731bd3b7a14d631487d>:0 
03-23 00:45:48.759  9618  9707 E Unity   :   at Firebase.Database.FirebaseDatabase.get_DefaultInstance () [0x00000] in <265179cd3d324ba1be0c68f88dea310a>:0 
03-23 00:45:48.759  9618  9707 E Unity   :   at button_script.Start () [0x00000] in <a8ca21255e29484580e851c97ded26fa>:0 
03-23 00:45:48.759  9618  9707 E Unity   : 
03-23 00:45:48.830  9618  9707 E Unity   : Failed to read Firebase options from the app's resources. Either make sure google-services.json is included in your build or specify options explicitly.
03-23 00:45:48.830  9618  9707 E Unity   : 
03-23 00:45:48.830  9618  9707 E Unity   : Failed to read Firebase options from the app's resources. Either make sure google-services.json is included in your build or specify options explicitly.

标签： c#androidfirebaseunity3dfirebase-realtime-database

解决方案

我在未加载 google-services.json 时遇到了同样的问题（Unity 2021.1.4f），我花了很长时间寻找答案，但没有找到可行的建议解决方案。最后，我尝试使用从 google-services.json 复制的值手动创建的 AppOptions 手动调用 Firebase.Create()。

Firebase.AppOptions options = new Firebase.AppOptions();
options.ApiKey = "XXXXXXXXXXX";
options.AppId = "XXXXXXXXXXXX";
options.MessageSenderId = "XXXXXXXXXXXXX";
options.ProjectId = "my-app";
options.StorageBucket = "my-app.appspot.com";
    
var app = Firebase.FirebaseApp.Create( options );

不是一个理想的解决方案，但在修复此错误之前一直有效。

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