¿Cómo configurar correctamente el botón de acción flotante?

<com.melnykov.fab.FloatingActionButton/> el <com.melnykov.fab.FloatingActionButton/> fuera del <com.sothree.slidinguppanel.SlidingUpPanelLayout/> y no olvide ubicarlo usando marginTop y marginLeft:

 <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:sothree="http://schemas.android.com/apk/res-auto" xmlns:fab="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent"> <com.sothree.slidinguppanel.SlidingUpPanelLayout xmlns:sothree="http://schemas.android.com/apk/res-auto" android:id="@+id/sliding_layout" android:layout_width="match_parent" android:layout_height="match_parent" android:gravity="bottom" sothree:umanoPanelHeight="56dp" sothree:umanoShadowHeight="4dp" sothree:umanoParalaxOffset="50dp" sothree:umanoDragView="@+id/dragView" xmlns:fab="http://schemas.android.com/apk/res-auto"> <!-- MAIN CONTENT --> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" android:weightSum="100"> </LinearLayout> <!-- SLIDING LAYOUT --> <LinearLayout android:layout_width="match_parent" android:layout_height="390dp" android:background="@android:color/transparent" android:orientation="vertical" android:clickable="true" android:focusable="false" sothree:umanoOverlay="true" android:layout_below="@+id/main_content"> <!--—TOP OF PANEL --> <LinearLayout android:layout_width="match_parent" android:layout_height="56dp" android:orientation="horizontal" android:background="#03A9F4" android:id="@+id/dragView"> <TextView android:id="@+id/name" android:layout_width="0dp" android:layout_height="match_parent" android:layout_weight="1" android:textSize="14sp" android:gravity="center_vertical" android:paddingLeft="10dp" android:textColor="@android:color/white"/> <Button android:id="@+id/follow" android:layout_width="wrap_content" android:layout_height="match_parent" android:textSize="14sp" android:gravity="center_vertical|right" android:paddingRight="10dp" android:paddingLeft="10dp"/> </LinearLayout> </LinearLayout> </com.sothree.slidinguppanel.SlidingUpPanelLayout> <com.melnykov.fab.FloatingActionButton android:id="@+id/fab" sothree:fab_type="normal" android:layout_marginBottom="25dp" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="bottom|right|center" android:tint="@android:color/white" android:src="@android:drawable/ic_dialog_map" android:layout_marginLeft="300dp" android:layout_marginTop="200dp" fab:fab_colorNormal="@color/fab_primary" fab:fab_colorPressed="@color/fab_pressed" fab:fab_colorRipple="@color/fab_ripple"/> </RelativeLayout> 

Una manera más fácil, que es lo que hice, es simplemente añadir un relleno de 28 dp al primer elemento en el diseño deslizante y poner el SlidingLayout en el modo de superposición.

 <com.sothree.slidinguppanel.SlidingUpPanelLayout android:id="@+id/sliding_layout" xmlns:android="http://schemas.android.com/apk/res/android" xmlns:fab="http://schemas.android.com/apk/res-auto" xmlns:sothree="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:gravity="bottom" sothree:umanoOverlay="true" sothree:umanoPanelHeight="228dp" sothree:umanoShadowHeight="0dp" tools:context="com.myfab5.mobile.myfab5.ui.BusinessActivityFragment" tools:ignore="RtlHardcoded"> <com.google.android.gms.maps.MapView android:id="@+id/map_view" android:layout_width="match_parent" android:layout_height="match_parent" /> <RelativeLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:background="@color/transparent"> <ImageView android:id="@+id/header_image" android:layout_width="match_parent" android:layout_height="200dp" android:layout_alignParentTop="true" android:layout_marginTop="28dp" /> <com.melnykov.fab.FloatingActionButton android:id="@+id/directions_button" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentRight="true" android:layout_alignParentTop="true" android:layout_marginRight="@dimen/full_margin" android:elevation="@dimen/quarter_margin" android:src="@drawable/ic_directions_white_24dp" fab:fab_colorNormal="@color/accent" fab:fab_colorPressed="@color/accent_60" fab:fab_colorRipple="@color/accent_60" /> <TextView android:id="@+id/text_view" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentLeft="true" android:layout_alignParentTop="true" android:layout_marginBottom="@dimen/triple_margin" android:layout_marginLeft="@dimen/full_margin" android:layout_marginTop="@dimen/quadruple_margin" android:text="@string/business_name" android:textColor="@color/white" android:textSize="24sp" /> </RelativeLayout>