skyline/app/src/main/res/layout/main_activity.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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"
        tools:context=".MainActivity">

    <androidx.appcompat.widget.Toolbar
            android:id="@+id/toolbar"
    <androidx.recyclerview.widget.RecyclerView
            android:id="@+id/app_list"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:background="?attr/colorPrimary"
            android:minHeight="?attr/actionBarSize"
            android:theme="@style/AppTheme.ActionBar"
            app:popupTheme="@style/AppTheme.PopupMenu"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent" />

    <ListView
            android:id="@+id/game_list"
            android:layout_width="match_parent"
            android:layout_height="0dp"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@id/toolbar" />

    <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:paddingBottom="8dp"
            android:orientation="vertical"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent">

        <com.google.android.material.floatingactionbutton.FloatingActionButton
                android:id="@+id/open_fab"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginEnd="16dp"
                android:layout_marginBottom="8dp"
                android:clickable="true"
                android:focusable="true"
                app:srcCompat="@drawable/ic_open" />

        <com.google.android.material.floatingactionbutton.FloatingActionButton
                android:id="@+id/log_fab"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginEnd="16dp"
                android:layout_marginBottom="8dp"
                android:clickable="true"
                android:focusable="true"
                app:srcCompat="@drawable/ic_log" />
    </LinearLayout>

</androidx.constraintlayout.widget.ConstraintLayout>