Realtime database not stored data - kotlin

Question

l cant save data Firebase realtime database no error code. auth create user but database not stored user data inside app. l change database rules
{
"rules": {
".read": true,
".write": true
}
}
l close firewall , try to test another app,I deleted the application completely from firebase and re-created it and downloaded the google-services.json file again. but can't solve problem.I tried a lot of different code structures, none of them worked this is my signup activity code block last version
class SignUpActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.sign_up_activity)
signInView.setOnClickListener {
startActivity(Intent(this, SignInActivity::class.java))
}
sign_up_btn.setOnClickListener {
createAccount()
}
}
private fun createAccount() {
val fullname = fullNameSignUp.text.toString()
val username = userNameSignUp.text.toString()
val email = emailSignUp.text.toString()
val password = passwordSignUp.text.toString()
when{
TextUtils.isEmpty(fullname) -> Toast.makeText(this,"full name is required.", Toast.LENGTH_LONG).show()
TextUtils.isEmpty(username) -> Toast.makeText(this,"user name is required.", Toast.LENGTH_LONG).show()
TextUtils.isEmpty(email) -> Toast.makeText(this,"email is required.", Toast.LENGTH_LONG).show()
TextUtils.isEmpty(password) -> Toast.makeText(this,"password is required.", Toast.LENGTH_LONG).show()
else -> {
/*
val alert = AlertDialog.Builder(this)
alert.setTitle("SignUp")
alert.setMessage("Please wait, this may take a while...")
alert.setCancelable(false)
alert.show()
*/
val progressDialog = ProgressDialog(this#SignUpActivity)
progressDialog.setTitle("SignUp")
progressDialog.setMessage("Please wait, this may take a while...")
progressDialog.setCanceledOnTouchOutside(false)
progressDialog.show()
val mAuth: FirebaseAuth = FirebaseAuth.getInstance()
mAuth.createUserWithEmailAndPassword(email, password)
.addOnCompleteListener { task ->
if (task.isSuccessful) {
saveUserInfo(fullname, username, email,progressDialog)
progressDialog.dismiss()
// AlertDialog.Builder(this)
// finish()
} else {
val message = task.exception!!.toString()
Toast.makeText(this, "Error: $message", Toast.LENGTH_LONG).show()
mAuth.signOut()
progressDialog.dismiss()
// AlertDialog.Builder(this)
// finish()
}
}
}
}
}
private fun saveUserInfo(fullname: String, username: String, email: String,progressDialog:ProgressDialog) {
val currentUserID = FirebaseAuth.getInstance().currentUser!!.uid
val usersRef = FirebaseDatabase.getInstance().reference.child("Users")
val userMap = HashMap<String,Any>()
userMap["uid"] = currentUserID
userMap["fullname"] = fullname
userMap["username"] = username
userMap["email"] = email
userMap["bio"] = ""
userMap["image"] = "gs://fart-me-ae78f.appSpot.com/Default Images/profile.png"
// db = FirebaseFirestore.getInstance()
// val usersRef = db.collection("Users").add(userMap)
// usersRef.addOnCompleteListener { task ->
usersRef.child("Users").child(currentUserID).setValue(userMap)
.addOnCompleteListener { task ->
if (task.isSuccessful) {
Toast.makeText(this, "Account has been created successfully.", Toast.LENGTH_LONG).show()
progressDialog.dismiss()
val intent = Intent(this#SignUpActivity, MainActivity::class.java)
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK or Intent.FLAG_ACTIVITY_NEW_TASK)
startActivity(intent)
finish()
// AlertDialog.Builder(this)
// finish()
} else {
val message = task.exception!!.toString()
Toast.makeText(this, "Error: $message", Toast.LENGTH_LONG).show()
FirebaseAuth.getInstance().signOut()
progressDialog.dismiss()
//AlertDialog.Builder(this)
// finish()
}
}
}
}
The solutions found by those with the same problem did not work for me. I would be glad if anyone can help me solve this problem