mihon/app/src/main/res/layout/item_source.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <TextView
        android:layout_width="match_parent"
        android:layout_height="40dp"
        tools:text="New Text"
        android:id="@+id/source_name"
        android:gravity="center_vertical" />

</LinearLayout>