android - Why Searchview search icon is not showing with collapseActionView property? -

i creating searchview in android toolbar whenever, mention collapseactionview property inside menu.xml item like:-

<item android:id="@+id/search"     android:title="@string/search_title"     app:showasaction="always|collapseactionview"     app:actionlayout="@layout/search_view_layout"/> 

here search_view_layout.xml bellow:-

<?xml version="1.0" encoding="utf-8"?>  <android.support.v7.widget.searchview xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="35dp"/> 

in case searchview looking bellow image:-

in above image search icon doesn't appear. when click search title searchview open as:-

i don't understand,why not hide kart menu item, , not import style properties style.xml:-

<style name="searchviewstyle" parent="widget.appcompat.searchview">     <item name="querybackground">@color/white</item>     <item name="searchicon">@drawable/search</item>     <item name="goicon">@drawable/ic_search</item>     <item name="android:textcolor">@color/black</item>     <item name="android:layout_height">35dp</item>     <item name="android:height">35dp</item> 

but want design searchview bellow:-

any suggestion appreciable.

in menu add

    <item     android:id="@+id/search"     android:icon="@drawable/ic_search"     android:title="@string/search"     yourapp:showasaction="ifroom|collapseactionview"     yourapp:actionviewclass="android.support.v7.widget.searchview"     /> 

in java class

   searchmanager searchmanager = (searchmanager) context.getsystemservice(context.search_service);    searchview searchview = (searchview) menu.finditem(r.id.search).getactionview();      searchview.setsearchableinfo(searchmanager.getsearchableinfo(((appcompatactivity) context).getcomponentname()));     searchview.seticonifiedbydefault(false);      searchview.setonquerytextlistener(this); 

to apply style , add in style.xml

  <style name="mytoolbar" parent="apptheme">    <item name="searchviewstyle">@style/searchstyle</item>   </style>   <style name="searchstyle" parent="widget.appcompat.searchview.actionbar">     <item name="queryhint">@string/search</item>     <item name="searchicon">@null</item>     <item name="colorcontrolactivated">@color/accent</item>     <item name="colorcontrolnormal">@color/accent</item> </style> 

and apply above theme in toolbar

  <android.support.v7.widget.toolbar             android:id="@+id/my_toolbar"             android:layout_width="match_parent"             android:minheight="?attr/actionbarsize"             android:theme="@style/mytoolbar"             android:layout_height="?attr/actionbarsize"             app:layout_collapsemode="pin"             >         </android.support.v7.widget.toolbar>