How to convert an absolute path String to a directory in tree Uri format

Question

The method Uri.parse generates an Uri that is not an Android tree Uri if I try to parse a String path of the kind "String path=/storage/emulated/0/Somefolder/".

For this reason if I try to get DocumemtFile list with something like

String path="/storage/emulated/0/Somefolder/"
DocumentFiles[] fileslist=DocumentFile.fromTreeUri(this, Uri.parse(path)).listFiles();

I get Invalid URI error.

And if instead I try to use DocumentFile.fromSingleUri doesn't work correctly too.

How Could I get the tree Uri correctly from a String path?

I have found how to get the treeuri using action Intent , but I need to do this programmatically without the needs of forcing the user to choose the folder manually.

Answer 1

How Could I get the tree Uri correctly from a String path?

That is not possible, sorry.

For the purposes of having a DocumentFile pointing to a filesystem path, use fromFile(). Just bear in mind that:

• You need android:requestLegacyExternalStorage="true" on your <application> element in the manifest to have read access to arbitrary filesystem paths on Android 10+

• You will lose write access to arbitrary filesystem paths (despite that attribute) on Android 11+ once your targetSdkVersion hits 30, sometime next year