Saving Data on Android

Uninstall Behavior
: Files saved to the internal storage are removed when the app 
is uninstalled. Files saved to the external storage are not removed, even when the 
app is uninstalled. The exception to this rule is if the files are saved in the 
directory obtained by 
getExternalFilesDir
.
If you’re unsure which method to use, here’s a hint: Use internal storage when you 
don’t want the user or any other apps to access the files, like important user 
documents and preferences. Use external storage when you want to allow users or 
other apps access to the files. This might include images you capture within the app.
GeTng started
To get started, you’ll build an app that uses internal storage. Inside this chapter’s 
folder resources, locate