handlePanUpdate method

void handlePanUpdate(DragUpdateDetails details)

Is called when a pan gesture is updated.

See also:

• GestureDetector.onPanUpdate, which this method is passed to

Implementation

void handlePanUpdate(DragUpdateDetails details) {
  final currentPosition = _getOffset(details.globalPosition);
  final distance = currentPosition - _startPosition;
  value = value.copyWith(distance: distance);
}