<!-- activity_main.xml -->

<androidx.drawerlayout.widget.DrawerLayout
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:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">

<!-- Main content layout -->
<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <!-- Toolbar -->
    <androidx.appcompat.widget.Toolbar
        android:id="@+id/toolbar"
        android:layout_width="match_parent"
        android:layout_height="?attr/actionBarSize"
        app:titleTextColor="#ffffff"
        android:elevation="5dp"
        android:background="#000000"
        android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
        app:popupTheme="@style/ThemeOverlay.AppCompat.Light"/>

    <!-- Main Content -->
    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Click on three lines top left corner in toolbar"
        android:textColor="@color/colorOrange"
        android:textSize="22sp"
        android:gravity="center"
        android:padding="16dp"
        android:layout_marginTop="50dp"/>
</LinearLayout>

<!-- The navigation drawer -->
<com.google.android.material.navigation.NavigationView
    android:id="@+id/navigation"
    android:layout_width="wrap_content"
    android:layout_height="match_parent"
    android:layout_gravity="start"
    app:headerLayout="@layout/nav_header"
    app:menu="@menu/nav_items"/>

</androidx.drawerlayout.widget.DrawerLayout>


<!-- nav_header.xml -->

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/nav_header"
    android:layout_width="match_parent"
    android:layout_height="160dp"
    android:background="@color/colorAccent"
    android:clickable="true"
    android:focusable="true"
    android:foreground="?attr/selectableItemBackgroundBorderless"
    android:gravity="bottom"
    android:orientation="vertical"
    android:padding="16dp"
    android:theme="@style/ThemeOverlay.AppCompat.Dark">

    <ImageView
        android:id="@+id/nav_header_imageView"
        android:layout_width="64dp"
        android:layout_height="64dp"
        android:src="@mipmap/ic_launcher_round" />

    <TextView
        android:id="@+id/nav_header_textView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:paddingTop="16dp"
        android:text="Android Development Tutorials"
        android:textAppearance="@style/TextAppearance.AppCompat.Body1" />
</LinearLayout>





<!-- nav_items.xml -->

<menu xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    tools:showIn="navigation_view">

    <group android:checkableBehavior="single">
        <item
            android:id="@+id/nav_home"
            android:icon="@drawable/ic_home_black_24dp"
            android:title="Home" />
        <item
            android:id="@+id/nav_other_apps"
            android:icon="@drawable/ic_music_player"
            android:title="Other Apps" />
        <item android:title="Others">
            <menu>
                <item
                    android:id="@+id/nav_feedback"
                    android:icon="@drawable/ic_feedback_black_24dp"
                    android:title="Feedback" />
                <item
                    android:id="@+id/nav_share"
                    android:icon="@drawable/ic_share_black_24dp"
                    android:title="Share" />
                <item
                    android:id="@+id/nav_rate"
                    android:icon="@drawable/ic_stars_black_24dp"
                    android:title="Rate Us" />
            </menu>
        </item>
    </group>

</menu>


                                    
                                  

                                    
                                        // MainActivity.java

import android.os.Bundle;
import android.view.MenuItem;
import android.widget.Toast;

import androidx.annotation.NonNull;
import androidx.appcompat.app.ActionBarDrawerToggle;
import androidx.appcompat.app.AppCompatActivity;
import androidx.appcompat.widget.Toolbar;
import androidx.core.view.GravityCompat;
import androidx.drawerlayout.widget.DrawerLayout;

import com.google.android.material.navigation.NavigationView;

public class MainActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener {

    NavigationView navigationView;
    DrawerLayout drawerLayout;
    Toolbar toolbar;

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

        // Initialize views
        toolbar = findViewById(R.id.toolbar);
        toolbar.setTitle("Navigation Drawer");
        setSupportActionBar(toolbar);

        drawerLayout = findViewById(R.id.drawer_layout);
        ActionBarDrawerToggle actionBarDrawerToggle = new ActionBarDrawerToggle(this, drawerLayout, toolbar,
                R.string.navigation_drawer_open, R.string.navigation_drawer_close);
        drawerLayout.addDrawerListener(actionBarDrawerToggle);
        actionBarDrawerToggle.syncState();

        navigationView = findViewById(R.id.navigation);
        navigationView.setNavigationItemSelectedListener(this);
    }

    @Override
    public boolean onNavigationItemSelected(@NonNull MenuItem item) {

        // Check which item was clicked and perform appropriate action
        switch (item.getItemId()) {
            case R.id.nav_home:
                Toast.makeText(this, "Home", Toast.LENGTH_SHORT).show();
                break;
            case R.id.nav_other_apps:
                Toast.makeText(this, "Other Apps", Toast.LENGTH_SHORT).show();
                break;
            case R.id.nav_feedback:
                Toast.makeText(this, "Feedback", Toast.LENGTH_SHORT).show();
                break;
            case R.id.nav_share:
                Toast.makeText(this, "Share", Toast.LENGTH_SHORT).show();
                break;
            case R.id.nav_rate:
                Toast.makeText(this, "Rate Us", Toast.LENGTH_SHORT).show();
                break;
        }

        drawerLayout.closeDrawer(GravityCompat.START);
        return true;
    }
}
                                    
                                  

                                      
                                        // MainActivity.kt

import android.os.Bundle
import android.view.MenuItem
import android.widget.Toast
import androidx.appcompat.app.ActionBarDrawerToggle
import androidx.appcompat.app.AppCompatActivity
import androidx.appcompat.widget.Toolbar
import androidx.core.view.GravityCompat
import androidx.drawerlayout.widget.DrawerLayout
import com.google.android.material.navigation.NavigationView

class MainActivity : AppCompatActivity(), NavigationView.OnNavigationItemSelectedListener {

    private lateinit var navigationView: NavigationView
    private lateinit var drawerLayout: DrawerLayout
    private lateinit var toolbar: Toolbar

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        // Initialize views
        toolbar = findViewById(R.id.toolbar)
        toolbar.title = "Navigation Drawer"
        setSupportActionBar(toolbar)

        drawerLayout = findViewById(R.id.drawer_layout)
        val actionBarDrawerToggle = ActionBarDrawerToggle(
            this,
            drawerLayout,
            toolbar,
            R.string.navigation_drawer_open,
            R.string.navigation_drawer_close
        )
        drawerLayout.addDrawerListener(actionBarDrawerToggle)
        actionBarDrawerToggle.syncState()

        navigationView = findViewById(R.id.navigation)
        navigationView.setNavigationItemSelectedListener(this)
    }

    override fun onNavigationItemSelected(item: MenuItem): Boolean {
        // Check which item was clicked and perform appropriate action
        when (item.itemId) {
            R.id.nav_home -> Toast.makeText(this, "Home", Toast.LENGTH_SHORT).show()
            R.id.nav_other_apps -> Toast.makeText(this, "Other Apps", Toast.LENGTH_SHORT).show()
            R.id.nav_feedback -> Toast.makeText(this, "Feedback", Toast.LENGTH_SHORT).show()
            R.id.nav_share -> Toast.makeText(this, "Share", Toast.LENGTH_SHORT).show()
            R.id.nav_rate -> Toast.makeText(this, "Rate Us", Toast.LENGTH_SHORT).show()
        }

        drawerLayout.closeDrawer(GravityCompat.START)
        return true
    }
}