What I wanna do:
I wanna get the path as a String of a file, which I choose via an Android File Manager.
What I have:
You can use this:
Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
intent.addCategory(Intent.CATEGORY_OPENABLE);
intent.setType("*/*");
startActivityForResult(intent, REQUEST_CODE);
For samsung devices to open file manager use this:
Intent intent = new Intent("com.sec.android.app.myfiles.PICK_DATA");
intent.putExtra("CONTENT_TYPE", "*/*");
intent.addCategory(Intent.CATEGORY_DEFAULT);
For more reference checkout http://developer.android.com/guide/topics/providers/document-provider.html