I am new to azure and firstly i want to send push notification by azure portal, so i was reading this tutorial https://docs.microsoft.com/en-us/azure/notification-hubs/notification-hubs-android-push-notification-google-fcm-get-started
i have already a blank android app and i want to send push notification by that blank app so can i do it with that or i have to make a new blank app which should be configured with azure notification hub as described in above links point(Connect your app to the notification hub) after connecting with FCM ?
Please help me