메뉴바

<?xml version="1.0"?>

<LinearLayout android:orientation="vertical"
    android:layout_height="match_parent"
    android:layout_width="match_parent"
    xmlns:android="http://schemas.android.com/apk/res/android">

    <Button android:layout_height="wrap_content"
        android:layout_width="wrap_content"
        android:text="show popup menu"
        android:onClick="onClick"
        android:layout_gravity="center"/>
</LinearLayout>

//////////////////////////////////////////////////////////////////////

<?xml version="1.0" encoding="UTF-8"?>

    <menu xmlns:android="http://schemas.android.com/apk/res/android">

    <item android:title="search" android:id="@+id/search" android:icon="@android:drawable/ic_menu_search"/>

    <item android:title="add" android:id="@+id/add" android:icon="@android:drawable/ic_menu_add"/>


    <item android:title="edit" android:id="@+id/edit" android:icon="@android:drawable/ic_menu_edit">
    <menu>
    <item android:title="share" android:id="@+id/share" android:icon="@android:drawable/ic_menu_share"/>
</menu>

</item>

</menu>

//////////////////////////////////////////////////////////////////////java

package com.example.emt00.myapplication;

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

public class MainActivity extends AppCompatActivity {

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

    public void onClick(View button) {
        PopupMenu popup = new PopupMenu(this, button);
        popup.getMenuInflater().inflate(R.menu.popup, popup.getMenu());
        popup.setOnMenuItemClickListener(

                new PopupMenu.OnMenuItemClickListener() {
                    public boolean onMenuItemClick(MenuItem item) {
                        Toast.makeText(getApplicationContext(), "클릭된 팝업 메뉴: "
                                        + item.getTitle(),
                                Toast.LENGTH_SHORT).show();
                        return true;
                    }
                });

        popup.show();
    }
}