Firebase / Android - 定期丢失数据库连接 [英] Firebase/Android - Regularly losing database connection

问题描述

全新安装后，一切正常：

用户可以注册或登录，数据检索应该像它应该，超快，超级干净。 yay。

然后，通过android studio重新启动后，数据库的东西不再工作了。重新启动的数量是不一样的，我找不到一个规则或这样的。如果我卸载并重新安装apk（仍然通过Android Studio）它再次工作。

我正在监视auth状态，用户保持登录状态，也没有firebase错误。
$ b

我得到大量的 E / DynamiteModule：无法加载模块描述符类：但显然这不是一个错误（只是提到它，因为我得到了连续20多行的错误。

任何想法我应该开始寻找？

$ b

app.gradle

  android {
 compileSdkVersion 23 
 buildToolsVersion23.0.3
 
 defaultConfig {
 ... 
 minSdkVersion 15 
 targetSdkVersion 23 
 ... 
} 
 ... 
} 
 ... 
依赖关系{
编译fileTree（dir：'libs'，include：['* .jar']）
 compile 'com.android.support:appcompat-v7:23.4.0'
 compile'c​​om.android.support：design：23.4.0'
 compile'c​​om .google.firebase：firebase-core：9.0.1'
 compile'c​​om.google.firebase：firebase-database：9.0.1'
 compile'c​​om.google.firebase：firebase-storage：9.0 .1'
 compile'c​​om.google.firebase：firebase-auth：9.0.1'
 compile'c​​om.google.firebase：firebase-messaging：9.0.1'
 compile'c​​om .android.support.constraint：constraint-layout：1.0.0-alpha1'
 compile'c​​n.pedant.sweetalert：library：1.3'
 testCompile'junit：junit：4.12'
} 
  

Firebase数据库规则

  {
rules：{
.read：auth！= null，
.write：auth！= null
} 
} 
  

解决方案

可能遇到由auth令牌刷新失败导致的已知问题讨论这里。尝试使用 FirebaseDatabase.getInstance（）。setLogLevel（Logger.Level.DEBUG）启用调试级别日志记录，并将输出与上面链接的讨论中包含的示例进行比较。特别是，查找错误获取令牌：发生内部错误。[内部错误]。如果您看到这一点，请按照此处提供的说明修复您的Google服务。 json文件。

I followed the docs for Firebase Auth and Database.

Everything works fine after a fresh install:

The user can register or log in, the data is retrieved like it should, written like it should, super fast, super clean. yay.

And then, after a few restarts via android Studio, the database stuff does not work anymore. The amount of restarts varies, I could not find a rule or such. If I uninstall and reinstall the apk (still via Android Studio) it works again.

I'm monitoring the auth state, the user stays logged in, there are also no firebase error at all.

I get a ton of E/DynamiteModule: Failed to load module descriptor class: but apparently this is not an error (just mentioning it because I get 20+ consecutive lines of that "error".

Any idea where I should start looking?

app.gradle

android {
    compileSdkVersion 23
    buildToolsVersion "23.0.3"

    defaultConfig {
        ...
        minSdkVersion 15
        targetSdkVersion 23
        ...
    }
    ...
}
...
dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile 'com.android.support:appcompat-v7:23.4.0'
    compile 'com.android.support:design:23.4.0'
    compile 'com.google.firebase:firebase-core:9.0.1'
    compile 'com.google.firebase:firebase-database:9.0.1'
    compile 'com.google.firebase:firebase-storage:9.0.1'
    compile 'com.google.firebase:firebase-auth:9.0.1'
    compile 'com.google.firebase:firebase-messaging:9.0.1'
    compile 'com.android.support.constraint:constraint-layout:1.0.0-alpha1'
    compile 'cn.pedant.sweetalert:library:1.3'
    testCompile 'junit:junit:4.12'
}

Firebase database rules

{
  "rules": {
    ".read": "auth != null",
    ".write": "auth != null"
  }
}

解决方案

It sounds like you may be experiencing a known problem caused with auth token refresh failure discussed here. Try enabling debug level logging using FirebaseDatabase.getInstance().setLogLevel(Logger.Level.DEBUG) and compare the output with the samples included in the discussion linked above. In particular, look for "Error fetching token: An internal error has occured. [ Internal error. ]". If you see that, follow the instructions provided here to fix your google-services.json file.

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