getExternalCacheDir() returns null after clearing data

Question

I have a simple app that access and writes data to external storage. Everything works fine until I go to Settings -> Apps -> App Info and clear data via \"Clear data\" button, t

Answer 1

getExternalCacheDir() returns cache dir like the name says. If there is no cache, there is no directory for it either. This directory is used for temporary files you removed with remove data command. In cases where phone is low on space, it can remove these folders itself too. Atleast some maintenance applications do so.

getExternalFilesDir() returns the directory for space to save data.