尽管调用setSelectedAccountName（Android 6.0），GoogleAccountCredential名称仍然为null [英] GoogleAccountCredential name is null despite calling setSelectedAccountName (Android 6.0)

问题描述

我使用受保护的后端创建了一个终端，并且自从3月份以来，我一直在使用它创建的应用（源文档这里）。我最近在我的Android 6.0设备上安装了最新版本，并且出现了一个奇怪的错误（它在4.2.2和5.1上完美运行）。

具体的错误是：

  IllegalArgumentException：名称一定不能是空的：null 
  

我追踪到凭证的错误，可以看到下面的代码。在Android 6.0帐户可能是[e-mail]，但字符串'测试'结果是空！

有什么具体的关于6.0改变了GoogleAccountCredential？

  public static GoogleAccountCredential getCredential（Context ctx）{
 
 SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences（ctx） ; 
 String account = prefs.getString（UserProfileHelper.PREF_USER_ACCOUNT，）; 
 GoogleAccountCredential凭证= GoogleAccountCredential.usingAudience（ctx，
server：client_id：MY_ACCOUNT_NUMS.apps.googleusercontent.com）
 .setSelectedAccountName（account）; 
 
 
 String test = credential.getSelectedAccountName（）; 
返回凭证; 
} 
  

解决方案

Yes with Android 6.0 Marshmallow，您现在需要在运行时请求权限 https://developer.android.com/training/permissions/index。为了获得这些凭据，您需要在CONTACTS组中获得GET_ACCOUNTS权限。

https://developer.android.com/guide/topics/security/permissions.html#正常危险的

您必须在您的活动/片段中请求它并处理与您的应用有关的任何UX。

I've created an endpoint using a secured backend and have been using it since March on an app I'm building (source docs here). I recently installed the latest version to my Android 6.0 device and an odd error popped up (it works perfectly on 4.2.2 & 5.1).

The specific error is:

IllegalArgumentException: the name must not be empty: null 

Which I traced to an error with the credential, you can see the code below. On Android 6.0 account may be "[e-mail]" but the string 'test' turns out to be null!

Is there something specific about 6.0 that changed GoogleAccountCredential?

public static GoogleAccountCredential getCredential(Context ctx) {

    SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(ctx);
    String account = prefs.getString(UserProfileHelper.PREF_USER_ACCOUNT, "");
    GoogleAccountCredential credential = GoogleAccountCredential.usingAudience(ctx,
            "server:client_id:MY_ACCOUNT_NUMS.apps.googleusercontent.com")
            .setSelectedAccountName(account);


    String test = credential.getSelectedAccountName();
    return credential;
}

解决方案

Yes with Android 6.0 Marshmallow, you will now need to request permissions at run time https://developer.android.com/training/permissions/index.html

In order to get those credentials you need the GET_ACCOUNTS permission in the CONTACTS group

https://developer.android.com/guide/topics/security/permissions.html#normal-dangerous

You will have to request it in your activity/fragment and handle any UX pertaining to your app.

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