Hi everyone.. i've a big problem, i must know if a user has uninstalled the app.
I use firebase messaging to send push notification using a token.
There is a way to know if a user has deleted the app?
I read that maybe using the fact that the firebase token became invalid after a while... but i...
I've been trying to upload my app on the amazon appstore but it returns "Invalid APK"
I read on their forums that maybe your apk is missing Version Code and Version Name attribute. Try adding #VersionName and #VersionCode in the build.gradle file.
OK, but how do i add them when i'm not...