I am admittedly not experienced in developing for android. I am looking for some API that lets me browse the users files, without installing a separate app via intents. Right now I have found the OI File Manager, but that uses intents to get it's work done. Is there another file manager library available for me to use? Preferably one that is easy to set-up and use.
This is a late answer but I worked on creating an android file explorer recently. https://github.com/mburman/Android-File-Explore
Its really straightforward. Essentially its just 1 file that you would need to integrate into your application - doesn't use intents either.
Why don't you create your own filebrowser using this example?
OpenIntent's FileManager is in fact open source:
https://github.com/openintents/filemanager
It is licensed under Apache License, Version 2.0.
You can integrate its source code in your application.
来源：https://stackoverflow.com/questions/5612812/android-file-manager-library