Android save data to firebase Database

user_2438200 0
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I try save something to firebase Database from android.

I create DB in firebase, and connect project to firebase in android studio, as you can see on screenshot connection to firebase from android studio I type this code:

FirebaseDatabase database = FirebaseDatabase.getInstance();
DatabaseReference myRef = database.getReference("message");
myRef.setValue("Hello, World!");

In firebase I set rules: For cloud:

rules_version = '2';
service cloud.firestore {
match /databases/{database}/** {
allow read, write  }}

For realtime:

{
"rules": {
".read": true,
".write": true
}
}

And nothing happens. I don't see "Hello, World!" in firebase console, I don't see ane warning and errors in android logcat. What I do wrong?

firebase-realtime-database firebase android
2 Answers

This is probably a firebase realtime database bug. It happens when you not select USA server (beta). And occures with no errors or warning of any kind.

Use direct link from firebase console in getInstance() (change xxx with your project data from firebase console realtime database section) firebase

FirebaseDatabase.getInstance("https://xxxxxxxxxxxxxxxxxxxxxx.firebasedatabase.app/")
user_77867390 
//firebase console official link
https://console.firebase.google.com

//setup your project into firebase console
//add dependency to  build.gradle(Module:app) file

 dependencies{
    implementation 'com.google.firebase:firebase-database:19.2.1'
}

// reference of firebase official docs for dependency
https://firebase.google.com/docs/android/setup

//tutorial link (youtube)
https://www.youtube.com/watch?v=71H9-MRXYOE
user_123381770
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