Interface for objects that receive updates about drags.
This interface is used in various ways. For example, MultiDragGestureRecognizer uses it to update its clients when it recognizes a gesture. Similarly, the scrolling infrastructure in the widgets library uses it to notify the DragScrollActivity when the user drags the scrollable.
) → void
- The input from the pointer is no longer directed towards this receiver. [...]
DragEndDetails details) → void
- The pointer is no longer in contact with the screen. [...]
DragUpdateDetails details) → void
- The pointer has moved.
Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
) → String
Returns a string representation of this object.