package com.example.ekene.blogzone;
public class RegisterActivity extends AppCompatActivity {
 private Button registerBtn;
 private EditText emailField, usernameField, passwordField;
 private FirebaseAuth mAuth;
 private DatabaseReference mDatabase;
 private TextView loginTxtView;
 @Override
 protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_register);
 loginTxtView = (TextView)findViewById(R.id.loginTxtView);
 registerBtn = (Button)findViewById(R.id.registerBtn);
 emailField = (EditText)findViewById(R.id.emailField);
 usernameField = (EditText)findViewById(R.id.usernameField);
 passwordField = (EditText)findViewById(R.id.passwordField);
 mAuth = FirebaseAuth.getInstance();
 mDatabase = FirebaseDatabase.getInstance().getReference().child(“Users”);
 loginTxtView.setOnClickListener(new View.OnClickListener() {
 @Override
 public void onClick(View view) {
 startActivity(new Intent(RegisterActivity.this, LoginActivity.class));
 } });
 registerBtn.setOnClickListener(new View.OnClickListener() {
 @Override
 public void onClick(View view) {
 Toast.makeText(RegisterActivity.this, “LOADING…”, Toast.LENGTH_LONG).show();
 final String username = usernameField.getText().toString().trim();
 final String email = emailField.getText().toString().trim();
 final String password = passwordField.getText().toString().trim();
 if (!TextUtils.isEmpty(email) && !TextUtils.isEmpty(username)&&!TextUtils.isEmpty(password)){
 mAuth.createUserWithEmailAndPassword(email, password).addOnCompleteListener(new OnCompleteListener<AuthResult>() {
 @Override
 public void onComplete(@NonNull Task<AuthResult> task) {
 String user_id = mAuth.getCurrentUser().getUid();
 DatabaseReference current_user_db = mDatabase.child(user_id);
 current_user_db.child(“Username”).setValue(username);
 current_user_db.child(“Image”).setValue(“Default”);
 Toast.makeText(RegisterActivity.this, “Registeration Succesful”, Toast.LENGTH_SHORT).show();
 Intent regIntent = new Intent(RegisterActivity.this, ProfileActivity.class);
 regIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
 startActivity(regIntent);
 } });
 }else {
Toast.makeText(RegisterActivity.this, “Complete all fields”, Toast.LENGTH_SHORT).show();
 } } }); }}