搜索视图显示在操作栏和导航视图中，无法从操作栏中隐藏3个点

Question

我有NavigationView并添加了项，但是当我使用菜单文件在操作栏上添加搜索视图时，搜索项同时显示在该位置，并且我无法删除操作栏上的3个点，尝试从堆栈中获取所有答案溢出。找到以下代码，

activity_main_drawer.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">

    <group android:id="@+id/grp1">
        <item
            android:id="@+id/nav_camera"
            android:icon="@drawable/theme"
            android:title="@string/nav_theme" />
    </group>

    <group android:id="@+id/grp2">
        <item
            android:id="@+id/nav_gallery"
            android:icon="@drawable/fingerprint"
            android:title="@string/nav_touchid" />
    </group>

    <group android:id="@+id/grp3">
        <item
            android:id="@+id/nav_contact"
            android:icon="@drawable/contact_us"
            android:title="@string/nav_contacts" />
    </group>
    <group android:id="@+id/grp4">
        <item
            android:id="@+id/nav_manage"
            android:icon="@drawable/notification"
            android:title="@string/nav_notifications" />
    </group>
    <group android:id="@+id/grp5">
        <item
            android:id="@+id/nav_user_guide"
            android:icon="@drawable/user_guide"
            android:title="@string/nav_userguide" />
    </group>
    <group android:id="@+id/grp6">
        <item
            android:id="@+id/nav_logout"
            android:icon="@drawable/logout"
            android:title="Log Out" />

    </group>

    <item
        android:id="@+id/action_search"
        android:icon="@drawable/searchicon"
        android:title="Search"
        app:actionViewClass="android.support.v7.widget.SearchView"
        app:showAsAction="always" />
</menu>

在MainActivity.java中

@Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.activity_main_drawer, menu);
        // Retrieve the SearchView and plug it into SearchManager
        final SearchView searchView = (SearchView) MenuItemCompat.getActionView(menu.findItem(R.id.action_search));
        SearchManager searchManager = (SearchManager) getSystemService(SEARCH_SERVICE);
        searchView.setSearchableInfo(searchManager.getSearchableInfo(getComponentName()));

找到以下屏幕截图