Floating action button doesn't appear in kitkat
<p>I have created a single page app where the floating action button is used to share content from the page. It works flawlessly in android lollipop but when i ran the app on kitkat, it doesn't show. Since the only interactive component is the FAB, the user is left with nothing to do but stare. I ran some search and found that the FAB should work perfectly on kitkat and that there are some issues only when it comes to lollipop(like padding). But, it works just fine in lollipop. Do I have to change it to a button for versions older than lollipop? My first question here. Any help is appreciated. Thanks.</p>

<p>activity_main.xml</p>

<pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
&lt;android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="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:fitsSystemWindows="true"
    tools:context="com.ataraxianstudios.decksharer.MainActivity"
    &gt;


    &lt;android.support.design.widget.FloatingActionButton
        android:id="@+id/fab"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="bottom|end"
        android:layout_margin="@dimen/fab_margin"
        android:src="@drawable/share1"/&gt;

&lt;ScrollView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="#016cb4"&gt;
    &lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        android:id="@+id/llMain"
        &gt;
&lt;Spinner
        android:id="@+id/osversions"
        android:layout_width="220dp"
        android:layout_height="wrap_content"
        android:layout_marginTop="10dp"
        /&gt;
    &lt;ImageView
        android:layout_width="60dp"
        android:layout_height="80dp"
        android:id="@+id/selectedImage"
        /&gt;

&lt;/LinearLayout&gt;
    &lt;/ScrollView&gt;
&lt;/android.support.design.widget.CoordinatorLayout&gt;
</code></pre>