Android auto backup rules and sqlite in xamarin.forms

I added the following to auto_backup_rules.xml

 <?xml version="1.0" encoding="UTF-8"?>
 <full-backup-content xmlns:tools="http://schemas.android.com/tools">
     <include domain="sharedpref" path="." />
     <include domain="database" path="SWLogBook.db3" />
     <exclude domain="sharedpref" path="${applicationId}.xamarinessentials.xml" />
     <exclude domain="sharedpref" path="AppCenter.xml" />
     <exclude domain="database" path="com.microsoft.appcenter.persistence" />
     <exclude domain="database" path="com.microsoft.appcenter.persistence-journal" />
     <exclude domain="file" path="error" tools:ignore="FullBackupContent" />
     <exclude domain="file" path="appcenter" tools:ignore="FullBackupContent" />
 </full-backup-content>

but my db defined by:

 string sqliteFilename = "SWLogBook.db3";
             string documentsPath = System.Environment.GetFolderPath(System.Environment.SpecialFolder.Personal); // Documents folder
             string path = Path.Combine(documentsPath, sqliteFilename);

is still not backed up.

Any ideas what I'm doin g wrong?

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LeonLu-MSFT · May 16 at 08:00 AM

I test string documentsPath = System.Environment.GetFolderPath(System.Environment.SpecialFolder.Personal); // Documents folder, returned path is /data/user/0/com.companyname.app1/files/

So, you need to change the SQLite DB's domain to file like following code.

<include domain="file" path="SWLogBook.db3" />

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BrianKramer-3128 LeonLu-MSFT · May 16 at 11:48 AM

the above change did not work.

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LeonLu-MSFT BrianKramer-3128 · May 18 at 07:11 AM

Can you share your AndroidManifest.xml? The amount of data is limited to 25MB per user of your app. There's no charge for storing backup data. Your app can customize the backup process or opt out by disabling backups.https://developer.android.com/guide/topics/data/autobackup

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