android - How to add icon into option menu? -

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i try add icon option menu in app. add icon attribute items icons don't show.

    <menu xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:app="http://schemas.android.com/apk/res-auto" >     <item         android:id="@+id/exit"         android:icon="@drawable/abc_ic_go"         android:title="@string/exit"/>     <item         android:id="@+id/about_us"         android:title="@string/about_us"/>     <item         android:id="@+id/help"         android:icon="@drawable/abc_ic_go"         android:title="@string/help"/>     <item         android:id="@+id/setting"         android:icon="@drawable/abc_ic_go"         android:title="@string/setting"/>     <item         android:id="@+id/search_collection"         android:icon="@drawable/search"         android:title="@string/search"         app:actionviewclass="android.support.v7.widget.searchview"         app:showasaction="always"/> </menu>

i want menu image.

enter image description here

use android:showasaction="always|withtext" in items

   <item         android:id="@+id/help"         android:icon="@drawable/abc_ic_go"         android:showasaction="always|withtext"         android:title="@string/help"/>

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