如何使用 b4a 在 android 11（范围存储）中获得“所有文件访问”或“对文件夹的永久和完全访问”？

Question

Any sample please

Can all apps get "All files access"? (like apk files non-shared and out of play store?)

and after getting "All files access" or "access to a storage folder" can i use file addres like this

File.Combine(File.DirRootExternal,"mySelectedfolderOrAppFolder/subfolder/file.zip")

or

File.ListFiles()

and other File methods...?

what about android 10? should i use just android:requestLegacyExternalStorage="true" in manifest and its fine?`

Answer 1

For accessing all files in android 10, for a specific folder you can use ACTION_OPEN_DOCUMENT_TREE .

https://developer.android.com/reference/android/content/Intent.html#ACTION_OPEN_DOCUMENT_TREE