should help you out I believe the calendar is remembering how many days into the year you are. in 2012 you were on day 31 + 29 = Feb 29. In 2011 that was March 1. Then you asked for the actual maximum of that month, which (for March) is 31. Calendar API is horrible.
Flutter - push firebase notifications to specific users without firebase auth
I think the issue was by ths following , The push notifications are not sent based on user, they are sent based on push notification token that is received when you register for push notifications (iOS & Android). The push notification token will change in the case of uninstall/install and has nothing to do with what user is logged in in the app, you can send push notifications to apps that don't have users at all.
When implementing Firebase (Flutter) notifications, I'm getting an error
may help you . You should take a look at the libraries you are using. The error says it found two different versions for com.android.support:support-fragment. Open your android/build.gradle and check if there is that dependency here and update it to version 27.1.1.
Send unique Firebase push notifications to users on Flutter app