Android/app/src/main/res/layout/content_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    app:layout_behavior="@string/appbar_scrolling_view_behavior"
    tools:context="protect.card_locker.MainActivity"
    tools:showIn="@layout/main_activity">

    <LinearLayout
        android:visibility="gone"
        android:id="@+id/helpSection"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical">

        <ImageView
            android:id="@+id/welcome_icon"
            android:layout_width="match_parent"
            android:layout_height="184dp"
            android:scaleType="fitCenter"
            android:src="@drawable/ic_launcher_foreground" />

        <TextView
            android:id="@+id/welcome_text"
            style="@style/TextAppearance.Material3.HeadlineLarge"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:gravity="center"
            android:text="@string/welcome" />

        <TextView
            android:id="@+id/add_card_instruction"
            style="@style/AppTheme.TextView.NoData"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:gravity="center"
            android:text="@string/noGiftCards" />
    </LinearLayout>

    <TextView
        android:id="@+id/noMatchingCardsText"
        style="@style/AppTheme.TextView.NoData"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:gravity="center"
        android:text="@string/noMatchingGiftCards"
        android:visibility="gone" />

    <TextView
        android:id="@+id/noGroupCardsText"
        style="@style/AppTheme.TextView.NoData"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:gravity="center"
        android:text="@string/noGroupCards"
        android:visibility="gone" />

    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/list"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:clipToPadding="false"
        android:paddingBottom="80dp"
        android:scrollbars="vertical"
        android:visibility="gone"
        app:layoutManager="androidx.recyclerview.widget.GridLayoutManager"
        app:spanCount="@integer/main_view_card_columns" />
</RelativeLayout>