This is a Flutter Widget that makes it easy to build a page with a bottom Card that can be expanded on user drag.

Use ExpandableCardPage for the body of your Scaffold. This widget will take two attributes:

• Widget page: which is the default page in the background
• ExpandableCard expandableCard: which is the bottom card itself. You can call the ExpandableCard constructor to build one.

ExpandableCard constructor has a few attributes:

• EdgeInsetsGeometry padding: padding inside the card. Default value is EdgeInsets.all(15)
• double minHeight: default height of the card when it's not expanded. Default value is 200
• double maxHeight: height of the card when it's fully expanded. Default value is 500
• bool hasShadow: determines whether the card has box shadow or not. Default is true
• Color backgroundColor: background color of the card. Default is Colors.blueGrey
• bool hasRoundedCorners: determines whether the card has rounded corners or not. Default is false
• bool hasHandle: will add a little handle icon. Default is true
• List<Widget> Children: Widgets that make the actual content of the card

• AnimatedExpandableCard: will allow animation between closed state and expanded state.
• Add suport for scrolling card when its fully expanded