Parse folder to create dynamic list of filenames

[Ewan Stevenson]

Hi. I'm wanting to create a soundboard app for playing sound effects in our drama class. When the app starts, I'd like it to parse a folder on the SD card to create a list of the filenames in there and, hopefully, dynamically create a button for each of these files in order to play them.

I know that I could easily so this manually but, ideally, I don't want to have to recompile the app each time I want to add a new sound effect.

Is this something that I could do in App Inventor 2?

[Taifun]

App Inventor does not offer a feature to get a list of filenames of a directory

a workaround is to call a terminal emulator app using the activity starter and store the result in a file, then read the file using the file component

How to execute statements in the Jackpal Terminal Emulator

the statement to execute could be something like this (assuming you want to list all files in directory /mnt/sdcard/Music including all subdirectories)

ls -R /mnt/sdcard/Music > /mnt/sdcard/myResult.txt && exit

Taifun

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Trying to push the limits of App Inventor! Snippets and Tutorials from Pura Vida Apps by Taifun.