Style.xml

<?xml version="1.0" encoding="utf-8" ?>
<resources>
  <style name="AppTheme" parent="AppTheme.Base">
  </style>
  <style name="AppTheme.Base" parent="Theme.AppCompat.Light.NoActionBar">
    <item name="colorPrimary">@color/primary</item>
    <item name="colorPrimaryDark">@color/primaryDark</item>
    <item name="colorAccent">@color/accent</item>
    <item name="windowActionModeOverlay">true</item>
  </style>
</resources>