android - How can I put a SearchView inside of a ToolBar with a height set to wrap_content without it disappearing? -

i've noticed if place android.support.v7.widget.searchview inside of android.support.v7.widget.toolbar height set wrap_content searchview behaves strangely. appears fine @ first gains focus disappears , no longer takes space in layout. can resolved setting explicit height toolbar i'm trying use wrap_content because use-case requires toolbar resize dynamically.

it might worth mentioning searchview still functional after disappears. if add searchview.onquerytextlistener searchview can observe query text indeed being updated type. neither text nor other part of searchview takes space in layout though , if force unobscured in layout still not visible.

this kind of seems bug in searchview me. have more insight why it's happening or how work around it?

here's working example of issue:

<?xml version="1.0" encoding="utf-8"?> <android.support.design.widget.coordinatorlayout xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:app="http://schemas.android.com/apk/res-auto"     xmlns:tools="http://schemas.android.com/tools"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:fitssystemwindows="true"     tools:context="com.me.myactivity">      <android.support.design.widget.appbarlayout         android:layout_width="match_parent"         android:layout_height="wrap_content"         android:paddingtop="@dimen/appbar_padding_top"         android:theme="@style/apptheme.appbaroverlay">          <android.support.v7.widget.toolbar             android:id="@+id/toolbar"             android:layout_width="match_parent"             android:layout_height="wrap_content"             android:background="?attr/colorprimary"             app:layout_scrollflags="scroll|enteralways"             app:popuptheme="@style/apptheme.popupoverlay">              <android.support.v7.widget.searchview                 android:id="@+id/internalsearchview"                 app:queryhint="to..."                 android:layout_weight="1"                 android:layout_width="match_parent"                 android:layout_height="wrap_content" >             </android.support.v7.widget.searchview>          </android.support.v7.widget.toolbar>      </android.support.design.widget.appbarlayout>  </android.support.design.widget.coordinatorlayout> 

it looks should work... have 2 suggestions.

1. if doesn't interfere design goals, set android:minheight="?attr/actionbarsize" on toolbar. may desired anyway.
2. try setting android:layout_height="48dp" on searchview.