How to get file path inside folder structure

Question

I am looking for a maybe better solution to get the path of a file inside a folder. For example:

I have the absolute path: "/storage/emulated/0/Mobile Pauker++/Lessons/Berge/Hoechste-Berge.pau.gz"

And I want to get: "Lessons/Berge/Hoechste-Berge.pau.gz"

My current solution is:

filepath.substring(filepath.indexOf("Mobile Pauker++")+15)

But I don't think that this is a good solution.

Answer 1

Please try this val path = File(Environment.getExternalStorageDirectory().toString() + File.separator + "Lessons/Berge/Hoechste-Berge.pau.gz")

Answer 2

I think I found a good solution:

filepath.split("${Environment.getExternalStorageDirectory()}${Constants.DEFAULT_APP_FILE_DIRECTORY}")[1]

I give the .split() method the path of my "root folder" and take the second part.