How to use SearchView in Android?

This example demonstrates how do I use SearchView 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"?>
<RelativeLayout
   xmlns:android="http://schemas.android.com/apk/res/android"
   xmlns:tools="http://schemas.android.com/tools"
   android:layout_width="match_parent"
   android:layout_height="match_parent"
   tools:context=".MainActivity">
   <ListView
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      android:id="@+id/listView"
      android:divider="#ad5"
      android:dividerHeight="2dp"
      android:layout_below="@+id/searchView"/>
   <SearchView
      android:id="@+id/searchView"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:queryHint="Search Here"
      android:iconifiedByDefault="false"
      android:layout_alignParentTop="true"/>
</RelativeLayout>
Step 3 − Add the following code to src/MainActivity.java
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.SearchView;
import android.widget.Toast;
import java.util.ArrayList;
public class MainActivity extends AppCompatActivity {
   SearchView searchView;
   ListView listView;
   ArrayList list;
   ArrayAdapter adapter;
   @Override
   protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.activity_main);
      searchView = findViewById(R.id.searchView);
      listView = findViewById(R.id.listView);
      list = new ArrayList<>();
      list.add("Apple");
      list.add("Banana");
      list.add("Pineapple");
      list.add("Orange");
      list.add("Mango");
      list.add("Grapes");
      list.add("Lemon");
      list.add("Melon");
      list.add("Watermelon");
      list.add("Papaya");
      adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1,list);
      listView.setAdapter(adapter);
      searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
         @Override
         public boolean onQueryTextSubmit(String query) {
            if(list.contains(query)){
               adapter.getFilter().filter(query);
            }else{
               Toast.makeText(MainActivity.this, "No Match found",Toast.LENGTH_LONG).show();
            }
            return false;
         }
         @Override
         public boolean onQueryTextChange(String newText) {
            adapter.getFilter().filter(newText);
            return false;
         }
      });
   }
}
Step 4 − 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.sample">
   <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">
         <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 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.