ActionBar Menu

activity_main.xml

<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=".MainActivity" >

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/hello_world" />

</RelativeLayout>

MainActivity.java

package in.blogspot.kantapp.actionbarmenu;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {

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

    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.main, menu);
        return super.onCreateOptionsMenu(menu);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
            case R.id.delitem:
                Toast.makeText(getApplicationContext(), "Delete Selected",
                        Toast.LENGTH_SHORT).show();
                break;

            case R.id.updateitem:
                Toast.makeText(getApplicationContext(), "Update Selected",
                        Toast.LENGTH_SHORT).show();
                break;
        }
        return super.onOptionsItemSelected(item);
    }
}

main.xml(Under manu folder)

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

    <item
        android:id="@+id/updateitem"
        android:orderInCategory="100"
        android:showAsAction="ifRoom|withText"
        android:title="@string/updateItemText"/>
    <item
        android:id="@+id/delitem"
        android:orderInCategory="100"
        android:showAsAction="ifRoom|withText"
        android:title="@string/DeleteItemText"/>

</menu>

string.xml

<resources>
    <string name="app_name">ActionBar Menu</string>
    <string name="action_settings">Settings</string>
    <string name="hello_world">Hello world!</string>
    <string name="updateItemText">Update</string>
    <string name="DeleteItemText">Delete</string>
</resources>