通过 android.widget.RemoteViewsService 访问时的 Content Provider 权限

发布于 2024-11-08 18:21:51 字数 755 浏览 0 评论 0原文

我正在开发一个应用程序的小部件作为更大应用程序的一部分。该应用程序包含一个在manifest.xml中声明的ContentProvider，如下所示：

<provider android:name="aaa.bbb.providers.MyContentProvider"
    android:authorities="aaa.bbb.myprovider"
    android:enabled="true" 
    android:exported="false">
</provider>

如您所见，内容提供程序导出的属性设置为false，因为我不希望其他应用程序可以访问它（根据谷歌的开发人员指南..）。问题是这个属性会导致小部件在尝试获取数据时崩溃来自内容提供者，虽然它从相同的进程运行（小部件使用使用 android.widget.RemoteViewsService 的 StackView），但我得到：

java.lang.SecurityException: Permission Denial: reading aaa.bbb.providers.MyContentProvider uri content://aaa.bbb.myprovider/users from pid=203, uid=10022 requires null

现在据我所知，当缺少权限时会发生这种错误，但它说该权限 null 是必需的，但众所周知，没有这样的权限...

谢谢！

原文

I'm developing an application's widget as part of a bigger application.
The application contains a ContentProvider which is declared in the manifest.xml as follow:

<provider android:name="aaa.bbb.providers.MyContentProvider"
    android:authorities="aaa.bbb.myprovider"
    android:enabled="true" 
    android:exported="false">
</provider>

As you can see the content provider exported attribute is set to false, since I don't want
other applications to access it (accoridng to google's developers guide..).
The problem is that this attribute causes the widget to crash when trying to fetch data
from the content provider, although it runs from the SAME process (the widget uses a StackView which uses a android.widget.RemoteViewsService) I get:

java.lang.SecurityException: Permission Denial: reading aaa.bbb.providers.MyContentProvider uri content://aaa.bbb.myprovider/users from pid=203, uid=10022 requires null

Now as far as I know, this kind of error occurres when a permission is missing, but it says
that permission null is required, and there is no such permission as we all know...

Thanks!

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