Hey folks,
I need to implement a view for a live activity (so using. WidgetKit), so any UIKit/SceneKit is a non-starter.
The thing to implement is a horizontal representation of a 360 degree protractor ('degree triangle').
I would like this view to be inifintely scrollable as if the user has a circular shape around their head and they can rotate their head to look at all the numbers, and when they reach 360/0, they simply continue with new round. In both directions.
I've managed to get this working for the positive values by using a LazyHStack and which is populated using ForEach, using a custom class that implements RandomAccessCollection where the endIndex is Int.max (not truly infinite, but good enough).
However, I can't get the scrollview/ForEach to start in the 'center' of the Int.max range (I'm sure this would cause some performance issue as well).
So my question is: how to get a SwiftUI scrollview to behave like a infinite scrollview, pretty much like Josh Shaffer explained in WWDC 2011 in the session with Eliza Block called 'Advanced ScrollView Techniques'?
-
—
Joride
-
—
MobileTen
Add a CommentIf Scrollview is not the right fit, I can probably manage using regular views. I am not looking for user interaction anyway, but to set the offsrt programmatically based on sensor input.
Each object in your forEach can conform to Indentifiable. Let each object's id equals a degree on the tape. Assign each objects.id to the view that draws the stroke on the tape. Then using a scroll view proxy, you can use the proxy to scroll to a given id in the collection based on the sensor input.