I made a small mobile app using flutter. When using it, it saves data locally into the Sqlite database. When I uninstall it , the database seems to get deleted as well, so next time I install the app again, the data is gone. Any ideas how to leave the database file in the phone even the app is deleted? Thank you.
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1did you find an answer for this question? I am currently having the same question like yourswahyu– wahyu2020-05-14 06:50:11 +00:00Commented May 14, 2020 at 6:50
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3 Answers
This issue exists if your device is Android 6 (API level 23) and above, where android supports automatic backup, which means data will be stored in the device even if you uninstall the application.
For Android:
To get rid of this, go to the AndroidManifest file and add
<application
android:allowBackup="false"
android:fullBackupOnly="false"
//...
/>
For iOS: refer https://stackoverflow.com/a/57937650/5106574
1 Comment
arisalexis
actually the answer should be the reverse, the user wants to keep the file and not get rid of it
I do not know how to do this in iOS but for Android there is a way.
Apps that target Android 6.0 (API level 23) or higher automatically participate in Auto Backup.
In your app manifest file, set the boolean value android:allowBackup to enable or disable backup.
The default value is true.
<manifest ... >
...
<application android:allowBackup="true" ... >
...
</application>
</manifest>
The restore operation occurs after the APK is installed, but before the app is available to be launched by the user.
You can check out more information over here:
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I think the best way to take backup, save db as a txt file, and set your file in somewhere disk device . Reading_Writing_file
OR create new db as a backup db Example
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