Android support design Floating Action Button

Question

I'm trying to decrease FAB margins on pre-Lollipop devices but whatever I do - nothing changes. I create two FAB s one is in the right|end|bottom other is up to the previous. That 16dp margins make a distance between two FAB s for 32dp and this is too large for me. If to use bottop_padding down button's clickable area overlapping the second button. Maybe, somebody had the same problem? Please, help me!

here is picture of how it looks like

<android.support.design.widget.CoordinatorLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">

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

        <android.support.design.widget.FloatingActionButton
            android:id="@+id/first"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/directions"
            app:backgroundTint="@android:color/holo_blue_light"
            app:elevation="6dp"
            app:pressedTranslationZ="12dp"
            android:layout_above="@+id/uer_position"
            android:layout_alignParentRight="true"
            android:layout_alignParentEnd="true" />

        <android.support.design.widget.FloatingActionButton
            android:id="@+id/second"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/my_location"
            app:backgroundTint="@android:color/white"
            app:elevation="6dp"
            app:pressedTranslationZ="12dp"
            android:layout_alignParentBottom="true"
            android:layout_alignParentRight="true"
            android:layout_alignParentEnd="true" />

        </RelativeLayout>

Answer 1

On pre-lollipop, margins are automatically added to the FAB s. Create a new folder named values-v21 and create a xml file named dimes.xml and add the following line

 <dimen name="btn_fab_margins">16dp</dimen>

Then go to your dimens.xml in your values folder and add the following

<dimen name="btn_fab_margins">0dp</dimen>

Now in your layout add following to the FABs

    android:layout_margin="@dimen/btn_fab_margins"

The problem will be solved. as with pre-lollipop it will take the 0dp margin and with lollipop it take the 16dp margin.