<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
android:theme="?attr/actionBarTheme"/>