Style to make Transparent Activity Theme

TransparentStyle.xml

<resources>
        <style name="Theme.Transparent" parent="android:Theme">
            <item name="android:windowIsTranslucent">true</item>
            <item name="android:windowBackground">@android:color/transparent</item>
            <item name="android:windowContentOverlay">@null</item>
            <item name="android:windowNoTitle">true</item>
            <item name="android:windowIsFloating">true</item>
            <item name="android:backgroundDimEnabled">false</item>
        </style>
</resources>

Original Post : https://stackoverflow.com/a/2700683/5740760