sheishuoAPP/app/res/menu/trade_menu.xml

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

    <item android:id="@+id/trade_menu_search"
        android:title="搜索"
        android:icon="@drawable/ic_action_search"
        app:showAsAction="ifRoom"/>
    <item android:title="筛选"
        android:id="@+id/trade_menu_filter"
        app:showAsAction="always">
        <menu>
            <item android:id="@+id/trade_menu_all"
                android:title="全部"
                android:checkable="true"
                android:checked="true" />
            <item android:id="@+id/trade_menu_sell"
                android:title="出售"
                android:checkable="true"
                android:checked="false"/>
            <item android:id="@+id/trade_menu_buy"
                android:title="求购"
                android:checkable="true"
                android:checked="false"/>
            <item android:id="@+id/trade_menu_recent"
                android:title="最近的"
                android:checkable="true"
                android:checked="false"/>
            <item android:id="@+id/trade_menu_concern"
                android:title="我关注的"
                android:checkable="true"
                android:checked="false"
                android:visible="false"/>
            <item android:id="@+id/trade_menu_mine"
                android:title="我发布的"
                android:checkable="true"
                android:checked="false"
                android:visible="false"/>
        </menu>
    </item>



</menu>