title: I can't hide Floating Action Button?
body: <p>I am trying to hide my FAB in a button click, but it's not working.?</p>
  
  <p>My XML</p>
  
  <pre><code>&lt;com.google.android.material.floatingactionbutton.FloatingActionButton
      android:id="@+id/fabbb"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_alignParentEnd="true"
      android:layout_alignParentBottom="true"
      android:layout_margin="@dimen/_10sdp"
      android:src="@drawable/ic_arrow_forward_black_24dp"
      android:tint="@color/md_white_1000" /&gt;
  
  &lt;Button
      android:id="@+id/show"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_margin="@dimen/_10sdp"
      android:text="HIDE" /&gt;
  </code></pre>
  
  <p>My Activity</p>
  
  <pre><code>show.setOnClickListener {
          fabbb.visibility == View.GONE
      }
  </code></pre>