android - How to Backup app data similar to whatsapp -


hi trying implement backup funcationality similar whatsapp, when come across after reverse engineering whatsapp manifest code. here observations, android:allowbackup="false" means not taking of default autobackup functionality or backupagent

enter image description here under obeservations, how backup working , check below screenshort enter image description here

and need have unlimited storage limit, unlike autobackup <25mb,

ex: whatsapp backup holding 112mb size


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