Program 15 (Firebase):
Firebase dependencies setup:
Will vary depending upon your android studio version (refer youtube/google for linking
android studio with firebase)
Firebase Email/Password Creation in Firebase:
Code:
activity_main.xml
MainActivity.java
package com.example.ftest1;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
import androidx.activity.EdgeToEdge;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.graphics.Insets;
import androidx.core.view.ViewCompat;
import androidx.core.view.WindowInsetsCompat;
import com.google.android.gms.tasks.OnCompleteListener;
import com.google.android.gms.tasks.Task;
import com.google.firebase.auth.AuthResult;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.auth.FirebaseUser;
import com.google.firebase.ktx.Firebase;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
EdgeToEdge.enable(this);
setContentView(R.layout.activity_main);
ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main), (v, insets) -> {
Insets systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars());
v.setPadding(systemBars.left, systemBars.top, systemBars.right,
systemBars.bottom);
return insets;
});
EditText username = findViewById(R.id.username);
EditText password = findViewById(R.id.password);
Button btnlogin = findViewById(R.id.btnlogin);
FirebaseAuth mAuth = FirebaseAuth.getInstance();
FirebaseUser mUser = mAuth.getCurrentUser();
btnlogin.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
String email = username.getText().toString();
String pass = password.getText().toString();
mAuth.signInWithEmailAndPassword(email,pass).addOnCompleteListener(new
OnCompleteListener() {
@Override
public void onComplete(@NonNull Task task) {
if(task.isSuccessful()){
Toast.makeText(MainActivity.this, "Correct",
Toast.LENGTH_SHORT).show();
Intent intent = new Intent(MainActivity.this,Personal_Details.class);
startActivity(intent);
}else{
Toast.makeText(MainActivity.this, "Incorrect",
Toast.LENGTH_SHORT).show();
}
}
});
}
});
}
}
Activity_personal_details.xml
Personal_Details.java (Note: Write this code only if you want to go back to login page
i.e MainActivity.java)
package com.example.ftest1;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.TextView;
import androidx.activity.EdgeToEdge;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.graphics.Insets;
import androidx.core.view.ViewCompat;
import androidx.core.view.WindowInsetsCompat;
public class Personal_Details extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
EdgeToEdge.enable(this);
setContentView(R.layout.activity_personal_details);
ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main), (v, insets) -> {
Insets systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars());
v.setPadding(systemBars.left, systemBars.top, systemBars.right,
systemBars.bottom);
return insets;
});
TextView btnback = findViewById(R.id.btnback);
btnback.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent intent2 = new Intent(Personal_Details.this,MainActivity.class);
startActivity(intent2);
}
});
}
}