Could not initialize class sun.util.calendar.ZoneInfoFile while using Flutter firebase-notifications

Could not initialize class sun.util.calendar.ZoneInfoFile while using Flutter firebase-notifications

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Could not initialize class sun.util.calendar.ZoneInfoFile while using Flutter firebase-notifications
Tag : android , By : TheDave1022
Date : January 11 2021, 03:32 PM

wish helps you well, disabling the following extensions in my vs code helped me solve the issue

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In java.util.Calendar, why does setting the value of Calendar.YEAR affect the value of Calendar.MONTH?

Tag : java , By : user176445
Date : March 29 2020, 07:55 AM
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

Tag : firebase , By : user185283
Date : March 29 2020, 07:55 AM
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

Tag : java , By : Brian
Date : March 29 2020, 07:55 AM
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

Tag : laravel , By : fstender
Date : March 29 2020, 07:55 AM
I wish this help you to send a push notification to a related subject your user should be subscribed to it:
final FirebaseMessaging _fcm = FirebaseMessaging();


    child: Text('I like puppies'),
    onPressed: () => _fcm.subscribeToTopic('puppies');,

    child: Text('I hate puppies'),
    onPressed: () => _fcm.unsubscribeFromTopic('puppies');,
export const sendToTopic = functions.firestore.document('puppies/{puppyId}').onCreate(async snapshot => {
const puppy = snapshot.data();

const payload: admin.messaging.MessagingPayload = {
  notification: {
    title: 'New Puppy!',
    body: `${puppy.name} is ready for adoption`,
    icon: 'your-icon-url',
    click_action: 'FLUTTER_NOTIFICATION_CLICK' // required only for onResume or onLaunch callbacks

return fcm.sendToTopic('puppies', payload);});

Extend java.util.calendar class

Tag : java , By : Theo
Date : March 29 2020, 07:55 AM
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