wulkanowy-mirror/app/src/main/res/layout/fragment_lucky_number.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.widget.CoordinatorLayout 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">

    <ProgressBar
        android:id="@+id/luckyNumberProgress"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:indeterminate="true"
        android:visibility="gone" />

    <androidx.swiperefreshlayout.widget.SwipeRefreshLayout
        android:id="@+id/luckyNumberSwipe"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <LinearLayout
            android:id="@+id/luckyNumberContent"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:gravity="center"
            android:orientation="vertical">

            <TextView
                android:layout_width="300dp"
                android:layout_height="wrap_content"
                android:gravity="center"
                android:text="@string/lucky_number_header"
                android:textSize="24sp" />

            <TextView
                android:id="@+id/luckyNumberText"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                tools:text="14"
                android:textSize="52sp" />

        </LinearLayout>

    </androidx.swiperefreshlayout.widget.SwipeRefreshLayout>

    <LinearLayout
        android:id="@+id/luckyNumberEmpty"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:gravity="center"
        android:orientation="vertical"
        android:padding="10dp"
        android:visibility="gone">

        <androidx.appcompat.widget.AppCompatImageView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:minWidth="100dp"
            android:minHeight="100dp"
            app:srcCompat="@drawable/ic_more_lucky_number_24dp"
            app:tint="?android:attr/textColorPrimary" />

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="20dp"
            android:gravity="center"
            android:text="@string/lucky_number_empty"
            android:textSize="20sp" />

    </LinearLayout>

</androidx.coordinatorlayout.widget.CoordinatorLayout>