By RockPaperLizard

2019-06-12 20:18:36 8 Comments

When an app is uninstalled, is the data in its SharedPreferences database deleted?

If not, without a device being rooted, is there any way to clear that data? (Or at least view it?)


@Gogu CelMare 2019-06-14 06:21:10

SharedPreferences are actually saved in a file in the app private directory: /data/data/package_name/shared_prefs/somefilename.xml

When an app is installed this directory and file are automatically created. When an app is uninstalled this directory is deleted along with its parent /data/data/package_name UNLESS the app is uninstalled in order to update it. From command line this is done using the flag -k or -r that is

adb uninstall -k package_name - Keep the data and cache direct­ories around after removal

adb uninstall -r package_name - Reinstall an existing app, keeping its data

@User123 2019-06-14 05:06:33

SharedPreferences database always deleted when app is uninstalled. but In Manifest
android:allowBackup="true" If allowBackup is true then data is not clear even if application is uninstall then install. so always keep allowBackup false when data do not want store.

@RockPaperLizard 2019-06-14 06:35:29

Thank you. What is the best way to keep allowBackup as false?

@Robert 2019-06-14 19:57:44

@user298642 The allowBackup flag usually only affects the adb backup. Do you have a source that backs your answer?

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