touchesMoved value setting
touchesMoved value setting
- Subject: touchesMoved value setting
- From: "Eric E. Dolecki" <email@hidden>
- Date: Tue, 18 Sep 2018 08:44:00 -0400
I have a UI control that can be adjusted up and down using touch & drag.
I've been asked to provide a control value based on how far the drag is via
distance. So far so good.
What my designer wants is a value change of every 20 pixels or so (control
is 150px tall @ the moment) - so every 20 pixels = a change of 1. This will
require multiple touch and drags but he's fine with it.
The math is probably simple, but it's eluding me this morning. How can I
easily convert my distance (I also have an increment Bool so I know whether
it's addition or subtraction) to an appropriate value?
Eric
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