Estou tendo problemas ao arrastar o floatingActionButton, isso mesmo depois de mudar para RelativeLayout. Segue o código do arquivo xml da activity_main.
<?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"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="@+id/floatingActionButton4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:clickable="true"
app:srcCompat="@drawable/ic_launcher_foreground" />
<ListView
android:id="@+id/activity_main_lista_de_alunos"
android:layout_width="match_parent"
android:layout_height="match_parent">
</ListView>
</RelativeLayout>