Swipe transitions

[Richard Gaskin]

The deeper I get into mobile design the more it becomes clear that true 
swipe transitions are somnething users expect, and by extension 
something new developers would expect to be supported.

Having used LC a long time, I can come up with all sorts of ways of 
crating groups for this, but that's a lot of work for newcomers, 
something of a turn-off.

What is the smallest number of language elements needed to implement 
swipe transitions?

I can imagine at a minimum needing something like a card property called 
the swipeDirections, which can include either left and/or right, or up 
and/or down, or all four, or none.

But that would only take care of the swipe of the current card.  We'd 
also need some way to assign the destination card for each swipe direction.

What should that syntax look like, and how do we discern swipe events 
from others on controls within the card?  How is that distinction made 
in Java/Swift apps?

-- 
  Richard Gaskin
  Fourth World Systems
  Software Design and Development for the Desktop, Mobile, and the Web
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  Ambassador at FourthWorld.com                http://www.FourthWorld.com