Can you help me with my issue? I want to set the IDs in the real-time database the same as the user ID in the Authentication when the user sign - up successfully in my app. I will use the user ID to retrieve the data of the user from my app. It's like the user will see his data from a Profile Activity. May I ask how to do it?
Here's my code from my SIGN-UP Activity
package com.example.biowit;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.Toast;
import com.google.android.gms.tasks.OnFailureListener;
import com.google.android.gms.tasks.OnSuccessListener;
import com.google.firebase.auth.AuthResult;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.database.DataSnapshot;
import com.google.firebase.database.DatabaseError;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;
import com.google.firebase.database.ValueEventListener;
public class Bio_SignUp extends AppCompatActivity {
EditText txtbx_SU_FullName, txtbx_SU_CPNum, txtbx_SU_Email, txtbx_SU_Pass, txtbx_SU_ConfirmPass; // edit text declarations
Button btn_Register; // button/s declaration/s
ImageButton btn_SU_Back;
FirebaseAuth FbaseAuth_SU; //for authentication
FirebaseDatabase rootNode; // for realtime database
DatabaseReference reference;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE); // hides the title bar
this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN);
getSupportActionBar().hide(); // hides the action bar
setContentView(R.layout.activity_bio_sign_up);
txtbx_SU_FullName = findViewById(R.id.txtbx_SU_FullName);
txtbx_SU_Email = findViewById(R.id.txtbx_SU_Email);
txtbx_SU_CPNum = findViewById(R.id.txtbx_SU_CPNum);
txtbx_SU_Pass = findViewById(R.id.txtbx_SU_Pass);
txtbx_SU_ConfirmPass = findViewById(R.id.txtbx_SU_ConfirmPass);
btn_Register = findViewById(R.id.btn_Register);
btn_SU_Back = findViewById(R.id.btn_SU_Back);
FbaseAuth_SU = FirebaseAuth.getInstance();
rootNode = FirebaseDatabase.getInstance("https://biowit-log-in-default-rtdb.asia-southeast1.firebasedatabase.app/");
reference = rootNode.getReference("users");
btn_Register.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String fullname = txtbx_SU_FullName.getText().toString();
String email = txtbx_SU_Email.getText().toString();
String cpnum = txtbx_SU_CPNum.getText().toString();
String password = txtbx_SU_Pass.getText().toString();
String ConPassword = txtbx_SU_ConfirmPass.getText().toString();
String UserID = FbaseAuth_SU.getUid();
UserHelper UHelper = new UserHelper(fullname, cpnum, email, password);
if(fullname.isEmpty()){ // condition if full name field is empty,
txtbx_SU_FullName.setError("This field cannot be empty."); // this error message will be shown.
return;
}
if(cpnum.isEmpty()){ // condition if full name field is empty,
txtbx_SU_CPNum.setError("This field cannot be empty."); // this error message will be shown.
return;
}
if(email.isEmpty()){ // condition if full name field is empty,
txtbx_SU_Email.setError("This field cannot be empty."); // this error message will be shown.
return;
}
if(password.isEmpty()){ // condition if full name field is empty,
txtbx_SU_Pass.setError("This field cannot be empty."); // this error message will be shown.
return;
}
if(ConPassword.isEmpty()){ // condition if full name field is empty,
txtbx_SU_ConfirmPass.setError("This field cannot be empty."); // this error message will be shown.
return;
}
if (!ConPassword.equals(password)){ // condition if the confirm password is not equals to password,
txtbx_SU_ConfirmPass.setError("Password does not match."); // this error message will be shown.
return;
}
// notification that says the data is validated.
Toast.makeText(Bio_SignUp.this, "Data Validated", Toast.LENGTH_LONG).show();
//Email address and password authentication in the database.
FbaseAuth_SU.createUserWithEmailAndPassword(email, password).addOnSuccessListener(new OnSuccessListener<AuthResult>() {
@Override
public void onSuccess(AuthResult authResult) { // send the user to the log - in screen.
reference.child(UserID).setValue(UHelper).addOnSuccessListener(new OnSuccessListener<Void>() {
@Override
public void onSuccess(Void unused) { // notification that the user was successfully registered.
Toast.makeText(Bio_SignUp.this, "Sign - up Successfully!", Toast.LENGTH_LONG).show();
}
}).addOnFailureListener(new OnFailureListener() {
@Override
public void onFailure(@NonNull Exception e) { // when user failed to sign up, an error message shows.
Toast.makeText(Bio_SignUp.this, e.getMessage(), Toast.LENGTH_LONG).show();
}
});
startActivity(new Intent(Bio_SignUp.this, Bio_LogIn.class));
}
}).addOnFailureListener(new OnFailureListener() {
@Override
public void onFailure(@NonNull Exception e) { // an error when email and pass is wrong or invalid.
Toast.makeText(Bio_SignUp.this, e.getMessage(), Toast.LENGTH_LONG).show();
}
});
}
});
btn_SU_Back.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
finish();
}
});
}
}
