问题
I am getting the following error only on Samsung device. Went through this but it doesn't really provide a solution.
Couldn't create directory for SharedPreferences file shared_prefs/log_files.xml
To be specific:

This is how I have declared SharedPreferences
in onCreate
settings = getSharedPreferences("preferences", MODE_PRIVATE);
回答1:
Based on a similar post it looks as if this error is specific to Samsung devices; this was confirmed by multiple users -
Error creating SharedPreferences - couldn't create directory for SharedPreferences file
It might be worthwhile to open an issue.
回答2:
Follow the link given below for shared preference API called TinyDB You can use this which handles your problem.
https://github.com/kcochibili/TinyDB--Android-Shared-Preferences-Turbo
来源:https://stackoverflow.com/questions/29991934/couldnt-create-directory-for-sharedpreferences