I am subclassing CALayer, and overriding -drawInContext: to perform my
drawing.
I'm noticing that whenever my -drawInContext gets called (in response
to calling -setNeedsDisplay) that there appears to be an actual
animated fade-out / fade-in of of the old content and the new content.
I do not see this transition effect documented anywhere, so I'm
wondering if I'm doing something wrong. Or, if this is the correct
behavior, how do I turn it off?
It's really quite an eye-catching effect, but it's not desirable in
this particular case; I need the layer content to show up immediately.
I've got several instances of my CALayer subclass as sublayers of an
NSView with -setWantsLayer:YES.
The reason I subclass CALayer is merely as a convenience. I pass off
drawing to a C++ object, and rather than create an objective C proxy
which delegates drawing from a CALayer which it owns, I collapsed it
into a subclass. But if this is the culprit, I'll go ahead w/ the
proxy object.
Thanks in advance,
Joe K.
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