activity_main.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:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".MainActivity">

   <Button
       android:layout_width="wrap_content"
       android:layout_marginTop="16dp"
       android:text="1-Item"
       android:visibility="gone"
       tools:visibility="visible"
       android:layout_height="wrap_content" />
   
</LinearLayout>