I've seen this dialog to pick/open a file on android in some apps and it seems to me as the native one. But I can't find a way to use it in my own apps. The language of the attached screenshot is German, but I'm sure someone will recognize it.
Screenshot of the file-dialog
Android – How to use native android file-open-dialog
androidfileopendialog
Best Answer
You can use the intent ACTION_GET_CONTENT with the MIME type
*/*
.It will return the URI in onActivityResult()