Hi,

Wondering if anyone has an idea of why prepareContentInRect: is not called for 
a view when responsive scrolling is enabled.

We are using an NSScrollView subclass that overrides prepareContentInRect:. 
When I turn on View Debugging->Show Responsive Scrolling Status during a debug 
session, the scrollview area is tinted green indicating that everything is (or 
should be) in place for responsive scrolling. When the app is run and loads and 
displays a window, I can see, in the debugger, the document view’s drawRect: 
method being called repeatedly with dirty rects that suggest the overdraw 
regions are steadily being built. However, prepareContentInRect: is never 
called. To the best of my knowledge it should be. At least that is how I 
understand fit from the docs and from WWDC’14 Session 215 on responsive 
scrolling. An online search for issues with prepareContentInRect: did not turn 
up any results, suggesting that this may not be a common issue, and therefore 
that I may be missing some required implementation detail. Does anyone know 
what might be causing prepareContentInRect: not to be called when responsive 
scrolling does appear to be active? Anything obvious I should look for? (I have 
tried overriding prepareContentInRect: in the NSScrollView’s subclass, as well 
as in the view that serves as the scroll view’s document view. Neither of these 
methods gets called though.)

-António

----------------------------------------------------
Energy is like a muscle,
it grows stronger through being used.
----------------------------------------------------



_______________________________________________

Cocoa-dev mailing list (Cocoa-dev@lists.apple.com)

Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com

Help/Unsubscribe/Update your Subscription:
https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com

This email sent to arch...@mail-archive.com

Reply via email to