In this tutorial you will learn to build a simple drag and drop matching game using Draggable and DragTarget widgets.
After completion of this tutorial, you will be able to use Draggable and DragTarget widgets to build drag and drop interface in your flutter application.
Source Code Repository (https://github.com/lohanidamodar/flutter_dnd)
The master branch contains the starting code, where as the final branch contains the code after the completion of the tutorial, that you can use as a reference.