问题描述
我是编程新手，想在android studio中制作文件管理器.在不推荐使用getExteralStorageDirectory后，我在列出API级别29中的所有设备文件夹时遇到问题.
I am new in programming and want to make a file manager in android studio. I am facing problems in listing all device folders in API level 29 after getExteralStorageDirectory was deprecated.
推荐答案
根据文档，则必须使用 ACTION_OPEN_DOCUMENT_TREE .这将为您提供所选directory的URI，一旦您拥有URI，您就可以访问该directory的所有子级.来自文档
According to the documentation, you will have to use ACTION_OPEN_DOCUMENT_TREE. This will provide you with the URI of selected directory, once you have the URI then you can access all the children of that directory. From docs
在github上还有 ActionOpenDocumentTree 示例应用程序，展示了如何实现此功能.
There is also ActionOpenDocumentTree sample app on github which shows how to implement this feature.
这篇关于如何列出Android Q(API级别29)中的所有内部存储文件夹?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！