<?xml version="1.0" encoding="utf-8"?><menu xmlns:android="http://schemas.android.com/apk/res/android">    <item        android:id="@+id/search"        android:icon="@android:drawable/ic_menu_search"        android:title="查找" />    <item        android:id="@+id/add"        android:icon="@android:drawable/ic_menu_add"        android:title="添加" />    <item        android:id="@+id/edit"        android:icon="@android:drawable/ic_menu_edit"        android:title="编辑">        <menu>            <item                android:id="@+id/copy"                android:title="复制" />            <item                android:id="@+id/cut"                android:title="剪切" />                        <item                android:id="@+id/paste"                android:title="粘贴" />                    </menu>    </item>    <item        android:id="@+id/exit"        android:title="隐藏菜单" /></menu>

public class PopupMenuTest extends Activity{    PopupMenu popup = null;    @Override    protected void onCreate(Bundle savedInstanceState)    {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);    }　　//此为popupMenu 按钮的响应方法    public void onPopupButtonClick(View button)    {        // 创建PopupMenu对象        popup = new PopupMenu(this, button);        // 将R.menu.popup_menu菜单资源加载到popup菜单中        getMenuInflater().inflate(R.menu.popup_menu, popup.getMenu());        // 为popup菜单的菜单项单击事件绑定事件监听器        popup.setOnMenuItemClickListener(            new PopupMenu.OnMenuItemClickListener()        {            @Override            public boolean onMenuItemClick(MenuItem item)            {                switch (item.getItemId())                {                    case R.id.exit:                        // 隐藏该对话框                        popup.dismiss();                        break;                    default:                        // 使用Toast显示用户点击的菜单项                        Toast.makeText(PopupMenuTest.this,                            "您单击了【" + item.getTitle() + "】菜单项"                            , Toast.LENGTH_SHORT).show();                }                return true;            }        });        popup.show();    }}