RegisterActivity.java
package com.socialcodia.socialcodia;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
import com.google.android.gms.tasks.OnCompleteListener;
import com.google.android.gms.tasks.OnFailureListener;
import com.google.android.gms.tasks.Task;
import com.google.firebase.auth.AuthResult;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.auth.FirebaseAuthUserCollisionException;
public class RegisterActivity extends AppCompatActivity {
private EditText inputEmail, inputPassword, inputConfirmPassword;
private TextView tvLogin;
private Button btnRegister;
FirebaseAuth mAuth;
String email, password;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_register);
//Init
inputEmail = findViewById(R.id.inputEmail);
inputPassword = findViewById(R.id.inputPassword);
inputConfirmPassword = findViewById(R.id.inputConfirmPassword);
tvLogin = findViewById(R.id.tvLogin);
btnRegister = findViewById(R.id.btnRegister);
//Firebase Init
mAuth = FirebaseAuth.getInstance();
//On click listener to tv login to move to login activity
tvLogin.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
sendToLogin();
}
});
//on click listener at btn register
btnRegister.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
ValidateDataAndDoRegister();
}
});
}
private void sendToLogin()
{
Intent intent = new Intent(getApplicationContext(),LoginActivity.class);
startActivity(intent);
}
private void ValidateDataAndDoRegister()
{
email = inputEmail.getText().toString().trim();
password = inputPassword.getText().toString().trim();
String confirmPassword = inputConfirmPassword.getText().toString().trim();
if (email.isEmpty())
{
inputEmail.setError("Enter Email Address");
inputEmail.requestFocus();
}
else if (email.length()<10)
{
inputEmail.setError("Enter valid email");
inputEmail.requestFocus();
}
else if (password.isEmpty())
{
inputPassword.setError("Enter Password");
inputPassword.requestFocus();
}
else if (inputPassword.length()<7)
{
inputPassword.setError("Password should be greater than 7 character");
inputPassword.requestFocus();
}
else if (confirmPassword.isEmpty())
{
inputConfirmPassword.setError("Enter Confirm Password");
inputConfirmPassword.requestFocus();
}
else if (confirmPassword.length()<7)
{
inputConfirmPassword.setError("Password should be greater than 7 character");
inputConfirmPassword.requestFocus();
}
else if (!password.equals(confirmPassword)) //if password not equal to confirm password
{
inputPassword.setError("Password not matched");
inputPassword.requestFocus();
inputConfirmPassword.setError("Password not matched");
inputConfirmPassword.requestFocus();
inputPassword.setText("");
inputConfirmPassword.setText("");
}
else
{
doRegister(email,password);
}
}
private void doRegister(String email, String password)
{
btnRegister.setEnabled(false);
mAuth.createUserWithEmailAndPassword(email,password).addOnCompleteListener(new OnCompleteListener<AuthResult>() {
@Override
public void onComplete(@NonNull Task<AuthResult> task) {
if (task.isSuccessful())
{
sendVerificationEmail();
}
}
}).addOnFailureListener(new OnFailureListener() {
@Override
public void onFailure(@NonNull Exception e) {
if (e instanceof FirebaseAuthUserCollisionException) //this exception means email already registered
{
btnRegister.setEnabled(true);
inputEmail.setError("Email Already Registered");
inputEmail.requestFocus();
}
else
{
btnRegister.setEnabled(true);
Toast.makeText(RegisterActivity.this, "Opps! Something went wrong", Toast.LENGTH_SHORT).show();
}
}
});
}
private void sendVerificationEmail()
{
if (mAuth.getCurrentUser()!=null)
{
mAuth.getCurrentUser().sendEmailVerification().addOnCompleteListener(new OnCompleteListener<Void>() {
@Override
public void onComplete(@NonNull Task<Void> task) {
if (task.isSuccessful())
{
btnRegister.setEnabled(true);
sendToLoginWithEmailAndPassword();
}
else
{
btnRegister.setEnabled(true);
Toast.makeText(getApplicationContext(),"Oops! failed to send verification email",Toast.LENGTH_SHORT).show();
}
}
});
}
}
private void sendToLoginWithEmailAndPassword()
{
Intent intent = new Intent(getApplicationContext(), LoginActivity.class);
intent.putExtra("email",email);
intent.putExtra("password",password);
//forgot to start activity
startActivity(intent);
}
}
activity_register.xml
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".RegisterActivity">
<ImageView
android:id="@+id/registerImage"
android:layout_width="250dp"
android:layout_height="250dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:srcCompat="@drawable/login_screen_image" />
<EditText
android:id="@+id/inputEmail"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="Enter Email Address"
android:layout_marginRight="16dp"
android:layout_marginLeft="16dp"
android:layout_marginTop="32dp"
android:ems="10"
android:inputType="textEmailAddress"
app:layout_constraintTop_toBottomOf="@+id/registerImage" />
<EditText
android:id="@+id/inputPassword"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="Enter Password"
android:layout_marginRight="16dp"
android:layout_marginLeft="16dp"
android:layout_marginTop="32dp"
android:ems="10"
android:inputType="textPassword"
app:layout_constraintTop_toBottomOf="@+id/inputEmail" />
<EditText
android:id="@+id/inputConfirmPassword"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginRight="16dp"
android:hint="Enter Confirm Password"
android:layout_marginLeft="16dp"
android:layout_marginTop="32dp"
android:ems="10"
android:inputType="textPassword"
app:layout_constraintTop_toBottomOf="@+id/inputPassword" />
<Button
android:id="@+id/btnRegister"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginRight="16dp"
android:layout_marginLeft="16dp"
android:layout_marginTop="32dp"
android:text="Register"
android:textColor="#ffffff"
android:textSize="20sp"
android:textStyle="bold"
android:background="@drawable/btn_corner"
app:layout_constraintTop_toBottomOf="@+id/inputConfirmPassword" />
<TextView
android:id="@+id/tvLogin"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Already have an account? Login"
android:layout_marginTop="20dp"
android:layout_marginRight="16dp"
android:textColor="#040666"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toBottomOf="@+id/btnRegister" />
</androidx.constraintlayout.widget.ConstraintLayout>
