Create Context Menu from XML File in Android

Create Project

Create new project in Android Studio with steps as below:

Step 1: Input Project Name and Select Project Location

Step 2: Select SDK for Android App

Step 3: Select Default Activity for App

Step 4: Finish create project

Add Strings

Open res\values\strings.xml file and add new string as below:

<resources>
    <string name="app_name">Learn Android with Real Apps</string>
    <string name="menu1">Menu 1</string>
    <string name="menu2">Menu 2</string>
    <string name="menu3">Menu 3</string>
    <string name="menu3_1">Menu 3.1</string>
    <string name="menu3_2">Menu 3.2</string>
</resources>

Create Menu XML

Create menu folder in res folder. Create my_menu.xml file contains menus as below:

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">

    <item
        android:id="@+id/menu1"
        android:title="@string/menu1"></item>
    <item
        android:id="@+id/menu2"
        android:title="@string/menu2" />
    <item android:title="@string/menu3" >
        <menu >
            <item
                android:id="@+id/menu3_1"
                android:title="@string/menu3_1" />
            <item
                android:id="@+id/menu3_2"
                android:title="@string/menu3_2" />
        </menu>
    </item>

</menu>

Main Activity Layout

Open res\layout\activity_main.xml file and create layout as below:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".MainActivity">

    <ListView
        android:id="@+id/listViewProduct"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

</LinearLayout>

Main Activity Class

Add code to MainActivity.java in android.demo.learnandroidwithrealapps package as below:

package android.demo.learnandroidwithrealapps;

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

import java.util.ArrayList;
import java.util.List;

public class MainActivity extends AppCompatActivity {

    private ListView listViewProduct;
    private List<String> products;

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

    private void initView() {
        listViewProduct = findViewById(R.id.listViewProduct);
        registerForContextMenu(listViewProduct);
    }

    private void loadData() {
        products = new ArrayList<String>();
        products.add("Name 1");
        products.add("Name 2");
        products.add("Name 3");
        products.add("Name 4");
        products.add("Name 5");
        ArrayAdapter<String> arrayAdapter = new ArrayAdapter<String>(getApplicationContext(), android.R.layout.simple_list_item_1, products);
        listViewProduct.setAdapter(arrayAdapter);
    }

    @Override
    public void onCreateContextMenu(ContextMenu contextMenu, View view, ContextMenu.ContextMenuInfo contextMenuInfo) {
        MenuInflater inflater = getMenuInflater();
        inflater.inflate(R.menu.my_menu, contextMenu);
        super.onCreateContextMenu(contextMenu, view, contextMenuInfo);
    }

    @Override
    public boolean onContextItemSelected(MenuItem item) {
        if (item.getItemId() == R.id.menu1) {
            Toast.makeText(getApplicationContext(), item.getTitle() + " is selected", Toast.LENGTH_SHORT).show();
        } else if (item.getItemId() == R.id.menu2) {
            // Get Product Name is selected from context menu
            AdapterView.AdapterContextMenuInfo adapterContextMenuInfo = (AdapterView.AdapterContextMenuInfo) item.getMenuInfo();
            int position = adapterContextMenuInfo.position;
            String product = products.get(position);
            Toast.makeText(getApplicationContext(), product, Toast.LENGTH_SHORT).show();
        } else if (item.getItemId() == R.id.menu3_1) {
            Toast.makeText(getApplicationContext(), item.getTitle() + " is selected", Toast.LENGTH_SHORT).show();
        } else if (item.getItemId() == R.id.menu3_2) {
            Toast.makeText(getApplicationContext(), item.getTitle() + " is selected", Toast.LENGTH_SHORT).show();
        }
        return super.onContextItemSelected(item);
    }

}

Structure of Project

Run App

Load Main Activity

Open Context Menu

Open Menu Item Have Children in Context Menu

Selected Menu in Context Menu

Get Item Info is selected from Context Menu