android - java.lang.SecurityException : Failed to find provider questions for user 0; expected to find a valid ContentProvider 错误

Question

我正在使用 se.emilsjolander:sprinkles:1.3.1 库将数据保存到我的数据库中。当我升级到 oreo sdk 26 时，收到一条错误消息，指出应该有一个有效的内容提供者。我不知道如何用我的图书馆来实现它。谁能帮我说清楚？我在这里添加堆栈。

 java.lang.SecurityException: Failed to find provider questions f user 0; expected to find a valid ContentProvider for this authority 10-31

Answer 1

在 API 级别 26 之前，您可以提供一个没有功能的 stub ContentProvider，现在一些最小的功能是强制性的。参见 https://developer.android.com/about/versions/oreo/android-8.0-changes.html#ccn

Android 8.0 (API level 26) changes how ContentResolver.notifyChange() and registerContentObserver(Uri, boolean, ContentObserver) behave for apps targeting Android 8.0.

These APIs now require that a valid ContentProvider is defined for the authority in all Uris. Defining a valid ContentProvider with relevant permissions will help defend your app against content changes from malicious apps, and prevent you from leaking potentially private data to malicious apps.