src/main/res/layout/toolbar.xml

   1 <?xml version="1.0" encoding="UTF-8"?>
   2 <android.support.v7.widget.Toolbar
   3     xmlns:android="http://schemas.android.com/apk/res/android"
   4     xmlns:app="http://schemas.android.com/apk/res-auto"
   5     android:id="@+id/toolbar"
   6     android:layout_width="match_parent"
   7     android:layout_height="wrap_content"
   8     app:popupTheme="@style/ThemeOverlay.AppCompat.Light" />