onDragStart property

GestureTapDragStartCallback? onDragStart
read / write

A pointer has contacted the screen with a primary button and has begun to move.

The position of the pointer is provided in the callback's details argument, which is a TapDragStartDetails object. The dragStartBehavior determines this position.

The number of consecutive taps, and the keys that were pressed on tap down are also provided in the callback's details argument.

See also:


GestureTapDragStartCallback? onDragStart;