<!-- material design actionbar & toolbar -->
<android.support.design.widget.AppBarLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    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:minHeight="?attr/actionBarSize"
        android:theme="@style/AppTheme.AppBarOverlay"
        app:popupTheme="@style/AppTheme.PopupOverlay"
        />

</android.support.design.widget.AppBarLayout>

android:theme="@style/AppTheme.AppBarOverlay"
 android:theme="@style/AppTheme.AppBarOverlay"
 app:popupTheme="@style/AppTheme.PopupOverlay"

<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.Toolbar
   xmlns:android="http://schemas.android.com/apk/res/android"
   xmlns:app="http://schemas.android.com/apk/res-auto"
   app:popupTheme="@style/AppTheme.PopupOverlay"
   android:layout_width="match_parent"
   android:layout_height="wrap_content"
   android:theme="@style/AppTheme.AppBarOverlay"
   app:popupTheme="@style/AppTheme.PopupOverlay"
/>

<include layout="@layout/toolbar" android:id="@+id/toolbar">

<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
    <!-- Customize your theme here. -->
    <item name="colorPrimary">@color/colorPrimary</item>
    <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
    <item name="colorAccent">@color/colorAccent</item>
</style>

<style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar" />
<style name="AppTheme.PopupOverlay" parent="ThemeOverlay.AppCompat.Light" />