Hello Friends,
In my last blog I have explained about how to create floating action button using CoordinatorLayout, LinearLayout, TextView and FloatingActionButton. But in this tutorial I have created a new floating action button layout using single LinearLayout.
You can see the below example it will clearly describe you how to create Floating action button layout in android.

<android.support.design.widget.CoordinatorLayout
    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">


        <LinearLayout
            android:id="@+id/viewA"
            android:layout_width="match_parent"
            android:layout_height="match_parent"

            android:background="@android:color/holo_purple"
            android:orientation="horizontal">

    </LinearLayout>

    <android.support.design.widget.FloatingActionButton
        android:id="@+id/fab"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_margin="16dp"
        android:clickable="true"
        android:src="@drawable/icon2"
        app:layout_anchor="@id/viewA"
        app:layout_anchorGravity="bottom|end|right"/>

</android.support.design.widget.CoordinatorLayout>