Register User - Added fields

So I am trying to register a user for my android app, currently it uses the Firebase authentication to register using a email and password. But I am trying to add a name and phone field to register with too.

Registration.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// register name/phone/radiogroup
final String name = nameField.getText().toString();
final String phone = phoneField.getText().toString();
final String email = Email.getText().toString();
final String password = Password.getText().toString();
if (TextUtils.isEmpty(name)) {
Toast.makeText(TradesmanLoginActivity.this,
"Please enter your Name...", Toast.LENGTH_SHORT).show();
}
if (TextUtils.isEmpty(phone)) {
Toast.makeText(TradesmanLoginActivity.this,
"Please enter your Phone Number...", Toast.LENGTH_SHORT).show();
}
if (TextUtils.isEmpty(email)) {
Toast.makeText(TradesmanLoginActivity.this,
"Please enter your Email Address...", Toast.LENGTH_SHORT).show();
}
if (TextUtils.isEmpty(password)) {
Toast.makeText(TradesmanLoginActivity.this,
"Please enter a Password...", Toast.LENGTH_SHORT).show();
} else {
loadingBar.setTitle("Tradesman Registration");
loadingBar.setMessage("Please wait while we check your credentials...");
loadingBar.show();
Auth.createUserWithEmailAndPassword(email, password).addOnCompleteListener(TradesmanLoginActivity.this, new OnCompleteListener<AuthResult>() {
@Override
public void onComplete(@NonNull Task<AuthResult> task) {
if (!task.isSuccessful()) {
Toast.makeText(TradesmanLoginActivity.this, "sign up error", Toast.LENGTH_SHORT).show();
loadingBar.dismiss();
} else {
Toast.makeText(TradesmanLoginActivity.this, "Tradesman Registration Successful!", Toast.LENGTH_SHORT).show();
loadingBar.dismiss();
String name = nameField.getText().toString();
String phone= phoneField.getText().toString();
HashMap<String,String> user=new HashMap<>();
user.put("Name",name);
user.put("Phone",phone);
String user_id = Auth.getCurrentUser().getUid();
DatabaseReference current_user_db = FirebaseDatabase.getInstance().getReference().child("Users").child("Tradesman").child(user_id).child("Name");
current_user_db.setValue(email);
}
}
});
}
}
});

I've created the fields etc, I just am struggling with the part of putting the name and phone into the firebase database.

Currently it registers a user and sets the Name to the users email. I want to store the name and phone as children of the user ID(which they enter when registering), rather than just the email

You put the wrong value at setValue. Replace with this.

 DatabaseReference current_user_db = FirebaseDatabase.getInstance().getReference().child("Users").child("Tradesman").child(user_id);
current_user_db.setValue(user);

If you want to create a node under /Users/Tradesman/$uid with the name and phone number of the user, that'd look like this:

Auth.createUserWithEmailAndPassword(email, password).addOnCompleteListener(TradesmanLoginActivity.this, new OnCompleteListener<AuthResult>() {
@Override
public void onComplete(@NonNull Task<AuthResult> task) {
if (!task.isSuccessful()) {
Toast.makeText(TradesmanLoginActivity.this, "sign up error", Toast.LENGTH_SHORT).show();
loadingBar.dismiss();
} else {
Toast.makeText(TradesmanLoginActivity.this, "Tradesman Registration Successful!", Toast.LENGTH_SHORT).show();
loadingBar.dismiss();
String name = nameField.getText().toString();
String phone= phoneField.getText().toString();
HashMap<String,String> user=new HashMap<>();
user.put("Name",name);
user.put("Phone",phone);
String user_id = Auth.getCurrentUser().getUid();
DatabaseReference current_user_db = FirebaseDatabase.getInstance().getReference().child("Users/Tradesman").child(user_id);
current_user_db.setValue(user);
}
}
});

The biggest change is that you were only writing email in there, and the update above writes the entire map with both name and phone number.