How to use NavigationView in Android?

This example demonstrates how do I Use NavigationView in android.
Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.
Step 2 − Add the following code to res/layout/activity_main.xml.
<?xml version="1.0" encoding="utf-8"?>
<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"
   android:fitsSystemWindows="true"
   tools:openDrawer="start">
   <com.google.android.material.navigation.NavigationView
      android:id="@+id/nav_view"
      android:layout_width="wrap_content"
      android:layout_height="match_parent"
      android:layout_gravity="start"
      android:fitsSystemWindows="true"
      app:headerLayout="@layout/nav_header_main"
      app:menu="@menu/activity_main_drawer" />
   <include
      layout="@layout/app_bar_main"
      android:layout_width="match_parent"
      android:layout_height="match_parent" />
</androidx.drawerlayout.widget.DrawerLayout>
Step 3 − Add the following code to src/MainActivity.java
import android.os.Bundle;
import com.google.android.material.floatingactionbutton.FloatingActionButton;
import com.google.android.material.snackbar.Snackbar;
import android.view.View;
import androidx.navigation.NavController;
import androidx.navigation.Navigation;
import androidx.navigation.ui.AppBarConfiguration;
import androidx.navigation.ui.NavigationUI;
import com.google.android.material.navigation.NavigationView;
import androidx.drawerlayout.widget.DrawerLayout;
import androidx.appcompat.app.AppCompatActivity;
import androidx.appcompat.widget.Toolbar;
import android.view.Menu;
public class MainActivity extends AppCompatActivity {
   private AppBarConfiguration mAppBarConfiguration;
   @Override
   protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.activity_main);
      Toolbar toolbar = findViewById(R.id.toolbar);
      setSupportActionBar(toolbar);
      FloatingActionButton fab = findViewById(R.id.fab);
      fab.setOnClickListener(new View.OnClickListener() {
         @Override
         public void onClick(View view) {
            Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG).setAction("Action", null).show();
         }
      });
      DrawerLayout drawer = findViewById(R.id.drawer_layout);
      NavigationView navigationView = findViewById(R.id.nav_view);
      mAppBarConfiguration = new AppBarConfiguration.Builder(
         R.id.nav_home, R.id.nav_gallery, R.id.nav_slideshow, R.id.nav_tools, R.id.nav_share,
         R.id.nav_send).setDrawerLayout(drawer).build();
      NavController navController = Navigation.findNavController(this, R.id.nav_host_fragment);
      NavigationUI.setupActionBarWithNavController(this, navController, mAppBarConfiguration);
      NavigationUI.setupWithNavController(navigationView, navController);
   }
   @Override
   public boolean onCreateOptionsMenu(Menu menu) {
      getMenuInflater().inflate(R.menu.main, menu);
      return true;
   }
   @Override
   public boolean onSupportNavigateUp() {
      NavController navController = Navigation.findNavController(this, R.id.nav_host_fragment);
      return NavigationUI.navigateUp(navController, mAppBarConfiguration) || super.onSupportNavigateUp();
   }
}
Step 4 − Create a Layout resource file (fragment_home.xml) and the following code −
<?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"
   android:layout_width="match_parent"
   android:layout_height="match_parent">
   <TextView
      android:id="@+id/text_home"
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:layout_marginStart="8dp"
      android:layout_marginTop="8dp"
      android:layout_marginEnd="8dp"
      android:textAlignment="center"
      android:textSize="20sp"
      app:layout_constraintEnd_toEndOf="parent"
      app:layout_constraintStart_toStartOf="parent"
      app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
Step 5 − Create a Java class (HomeFragment.java) and add the following code −
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import androidx.annotation.Nullable;
import androidx.annotation.NonNull;
import androidx.fragment.app.Fragment;
import androidx.lifecycle.Observer;
import androidx.lifecycle.ViewModelProviders;
import app.com.myapplication.R;
public class HomeFragment extends Fragment {
   private HomeViewModel homeViewModel;
   public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
      homeViewModel = ViewModelProviders.of(this).get(HomeViewModel.class);
      View root = inflater.inflate(R.layout.fragment_home, container, false);
      final TextView textView = root.findViewById(R.id.text_home);
      homeViewModel.getText().observe(this, new Observer<String>() {
         @Override
         public void onChanged(@Nullable String s) {
            textView.setText(s);
         }
      });
      return root;
   }
}
Step 6 − Create a Java class (HomeViewModel.java) and add the following code −
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import androidx.annotation.Nullable;
import androidx.annotation.NonNull;
import androidx.fragment.app.Fragment;
import androidx.lifecycle.Observer;
import androidx.lifecycle.ViewModelProviders;
import app.com.myapplication.R;
public class HomeFragment extends Fragment {
   private HomeViewModel homeViewModel;
   public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
      homeViewModel = ViewModelProviders.of(this).get(HomeViewModel.class);
      View root = inflater.inflate(R.layout.fragment_home, container, false);
      final TextView textView = root.findViewById(R.id.text_home);
      homeViewModel.getText().observe(this, new Observer<String>() {
         @Override
         public void onChanged(@Nullable String s) {
            textView.setText(s);
         }
      });
      return root;
   }
}
Similar coding can be followed for other options like the gallery, send, share.
Kindly note the naming convention is very important.
Step 7 − Add the following code to androidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="app.com.myapplication">
   <application
      android:allowBackup="true"
      android:icon="@mipmap/ic_launcher"
      android:label="@string/app_name"
      android:roundIcon="@mipmap/ic_launcher_round"
      android:supportsRtl="true"
      android:theme="@style/AppTheme">
      <activity
         android:name=".MainActivity"
         android:label="@string/app_name"
         android:theme="@style/AppTheme.NoActionBar">
            <intent-filter>
               <action android:name="android.intent.action.MAIN" />
               <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
         </activity>
      </application>
</manifest>
Let's try to run your application. I assume you have connected your actual Android Mobile device with your computer. To run the app from the android studio, open one of your project's activity files and click Run  icon from the toolbar. Select your mobile device as an option and then check your mobile device which will display your default screen −
Click here to download the project code.