Context Menu Example in android studio | How to apply context menu in android application

Context Menu:-Android context menu appears when user press long click on the element. It is also known as floating menu.

Required classes and xml layouts:-
1.MainActivity.java | activity_main.xml

Create a new project and add following code to your project:-

Step1:- 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"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="supriya.com.contextmenu.MainActivity"
    android:background="#DF013A">
  <ListView
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      android:id="@+id/list1"></ListView>
</RelativeLayout>
Step2:-MainActivity.java

package supriya.com.contextmenu;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.ContextMenu;
import android.view.MenuItem;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {
    ListView listView;
    String[] list = {"Somya", "Supriya", "Pankaj", "Ankit", "Rajwari", "Honey", "Vikash", "Sunita", "Dipika", "Suman", "Akash", "Saurabh", "Mohan", "Ram"};

    @Override    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        listView = (ListView) findViewById(R.id.list1);
        ArrayAdapter<String> adp = new ArrayAdapter<String>(getApplicationContext(), android.R.layout.simple_list_item_1, list);
        listView.setAdapter(adp);
        registerForContextMenu(listView);


    }

    @Override    public void onCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
        super.onCreateContextMenu(menu, v, menuInfo);
        menu.setHeaderTitle("Select Option");
        menu.add(0, v.getId(), 0, "Call");
        menu.add(0,v.getId(),0,"Message");
        menu.add(0,v.getId(),0,"Mail");
    }

    @Override    public boolean onContextItemSelected(MenuItem item) {
        if(item.getTitle()=="Call"){
            Toast.makeText(getApplicationContext(),"Call:Selected",Toast.LENGTH_LONG).show();
        }
        else if (item.getTitle()=="Message"){
            Toast.makeText(getApplicationContext(),"Message:Selected",Toast.LENGTH_LONG).show();
        }
        else if(item.getTitle()=="Mail"){
            Toast.makeText(getApplicationContext(),"Mail:Selected",Toast.LENGTH_LONG).show();
        }
        return super.onContextItemSelected(item);
    }
}

Output:-