nav_header

<?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"
    android:layout_width="match_parent"
    android:layout_height="match_parent">


    <com.google.android.material.floatingactionbutton.FloatingActionButton
        android:id="@+id/fab_add"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:background="?colorPrimary"
        android:backgroundTint="?colorPrimary"
        android:contentDescription="@string/add_item"
        app:borderWidth="0dp"
        app:fabSize="mini"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:srcCompat="@drawable/ic_baseline_add_circle_24" />
</androidx.constraintlayout.widget.ConstraintLayout>