Just sign out your gmail account from Android Studio and then re-sign in again. After this, try again connecting to the firebase. It should connect! simply increase the project quota from firebase….it’s free i was facing this issue for very long time but now issue is resolved.
Read moreHow can I tell if Firebase is connected Android?
“how to check if user is connected android firebase” Code Answer
Read moreHow do I get keys from Firebase?
Where can I find my Google/Firebase Cloud Messaging API key?
Read moreIs firebase a key value database?
In Firebase Database everything is a node, that follows the pattern key: value . Firebase Database provides us with a simple way to generate unique keys. Unique keys create new items while uploading data to a previously stored key will update.
Read moreHow do I find my database key in firebase?
Creating API keys
Read moreHow do I manually add data to Firebase?
If you open your app from Firebase dashboard, you can add data manually by clicking on the + sign .
Read moreCan we retrieve data from Firebase?
Firebase data is retrieved by either a one time call to GetValueAsync() or attaching to an event on a FirebaseDatabase reference . The event listener is called once for the initial state of the data and again anytime the data changes.
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