MainActivity.java

package com.example.adminpanelapp;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.os.Bundle;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {

    private EditText emailEditText;
    private EditText passwordEditText;
    private Button loginButton;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        emailEditText = findViewById(R.id.email);
        passwordEditText = findViewById(R.id.password);
        loginButton = findViewById(R.id.login_button);

        loginButton.setOnClickListener(v -> {
            String email = emailEditText.getText().toString();
            String password = passwordEditText.getText().toString();

            if (email.equals("admin@example.com") && password.equals("password")) {
                Intent intent = new Intent(MainActivity.this, DashboardActivity.class);
                startActivity(intent);
                finish();
            } else {
                Toast.makeText(MainActivity.this, "Invalid credentials", Toast.LENGTH_SHORT).show();
            }
        });
    }
}