Missing data extraction rules

Missing data extraction rules

Before Android 12, the attributes android:allowBackup and android:fullBackupContent were used to configure all forms of backup, including cloud backups, device-to-device transfers and adb backup.

In Android 12 and higher, these attributes have been deprecated and will only apply to cloud backups. You should instead use the attribute android:dataExtractionRules, specifying an @xml resource that configures which files to back up, for cloud backups and for device-to-device transfers, separately. If your minSdkVersion supports older versions, you'll still want to specify an android:fullBackupContent resource if the default behavior is not right for your app.

Issue id: DataExtractionRules

https://developer.android.com/about/versions/12/backup-restore#xml-changes

https://goo.gle/DataExtractionRules