Android Question how to backup SharedPreferences

navac

New Member
Hi
I'm pretty new to android. I have a task to make SharedPreferences persist after the user removes and re-installs the application.
I configured the AndroidManifest with
android:allowBackup="true"
android:fullBackupContent="@xml/backup_rules"

where the backup_rules.xml looks like this:

backup_rules.xml:
<?xml version="1.0" encoding="utf-8"?>
<full-backup-content>
    <!-- Include shared preferences -->
    <include domain="sharedpref" path="." />
    <!-- Add other paths you want to include in the backup -->
</full-backup-content>

I configured my google drive backup and signed in with my google account

when i try to invoke the backup manually with adb i get the following error:

Running incremental backup for 1 requested packages.
Package @pm@ with result: Success
Package com.mycomp.myTest with result: Transport rejected package because it wasn't able to process it at the time
Backup finished with result: Success

what might be the problem?

The phone is Galaxy Note20 Ultra 5G
Android version 13

Thanks in advance
 
Cookies are required to use this site. You must accept them to continue using the site. Learn more…