问题
Are SharedPreferences value for an App retained even after it is removed?
If not, I would like to retain the SharedPreferences even after the app is uninstalled/removed. Is there a way?
Edit: I am reluctant to store the settings on the SD Card. Is there a way I can store them in the phone memory itself?
回答1:
SharedPreferences are deleted when an app is uninstalled, but you can use the BackupManager to perform a backup into the cloud - Reto Meier has a good blog post for getting you started.
This approach means if a user installs you app onto a new phone they can have their preferences copied over to there as well.
回答2:
Yes shared preferences are stored in the data directory for the application. When the app is uninstalled the file is removed.
If you want to retain a shared preferences you'll need to work with a file on the sd card.
回答3:
Yes they will get deleted. You would have to store a backup on SD card and restore it upon re-installation.
来源：https://stackoverflow.com/questions/6907916/are-the-shared-preferences-associated-with-the-app-deleted-when-the-app-is-remov