onDragStart method

void onDragStart(
  1. DragStartDetails details
)

Implementation

void onDragStart(DragStartDetails details)
{
  // IOS back button functionality
  if (details.globalPosition.dx < 50)
  {
    swiping = true;
    start = details.globalPosition.dx;
    last  = details.globalPosition.dx;
  }
}