I assume this should be simple, but so far I haven't found the magic
incantation, even after reading the docs, Dudley's book, and some archives.
Problem: Layer called "contentLayer" has sublayers containing layer A,
which is to be transitioned to layer B. (Note: Using GC here.) Controller
code:
-(void)transitionFrom:(CALayer*)A to:(CALayer*)B{
CATransition* trans = [CATransition animation];
trans.type = kCATransitionPush;
trans.subtype = kCATransitionFromLeft;
trans.speed = 0.5;
[[self contentLayer] addAnimation:trans forKey:kCATransition];
[[self contentLayer] replaceSublayer:A with:B];
}
My understanding (likely wrong) is that replaceSublayer triggers the
necessary action to start the transition, then the animation object is
automatically removed (default).
I get an initial transition, then on subsequent calls get layer
replacement but no transition. What am I missing?
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