KanbanCloneAndroid/app/src/main/res/layout/activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:tools="http://schemas.android.com/tools"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        android:id="@+id/main"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        tools:context="com.campusaula.edbole.kanban_clone_android.ui.MainActivity">

    <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Logged in as: "
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintTop_toTopOf="parent"
            android:id="@+id/loggedInAs"
            android:textAlignment="textStart"
            app:layout_constraintHorizontal_bias="0.0"
            app:layout_constraintVertical_bias="0.0"
            android:layout_marginTop="16dp"
            android:layout_marginStart="16dp" />

    <Button
            android:text="Not you? Log out here..."
            android:layout_width="wrap_content"
            android:layout_height="33dp"
            android:id="@+id/logoutButton"
            app:layout_constraintTop_toBottomOf="@+id/loggedInAs"
            app:layout_constraintStart_toStartOf="@+id/loggedInAs"
            style="@style/Widget.MaterialComponents.Button.TextButton"
            android:textSize="8sp" />

    <androidx.recyclerview.widget.RecyclerView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            tools:layout_editor_absoluteX="0dp"
            app:layout_constraintTop_toBottomOf="@+id/logoutButton"
            android:layout_marginTop="8dp"
            android:id="@+id/projectsRecyclerView" />

    <com.google.android.material.floatingactionbutton.FloatingActionButton
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:clickable="true"
            app:srcCompat="@android:drawable/ic_input_add"
            android:id="@+id/addProjectActionButton"
            app:layout_constraintBottom_toBottomOf="parent"
            android:layout_marginBottom="16dp"
            android:layout_marginEnd="16dp"
            app:layout_constraintEnd_toEndOf="parent" />

</androidx.constraintlayout.widget.ConstraintLayout>