dxcgt_app / app / src / main / res / layout / include_weight2.xml

<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
          android:layout_width="0px"
          android:layout_height="0px"
          android:layout_weight="0.1"
          android:background="@color/lightgray">

</TextView>