Re: Core Animation - Animation Sequence
Re: Core Animation - Animation Sequence
- Subject: Re: Core Animation - Animation Sequence
- From: Tino Rachui <email@hidden>
- Date: Tue, 1 Jun 2010 08:51:45 +0200
David, Rodolfo,
I'm interested in this too so please excuse me for interfering. What is the
root cause for Rodolfo's problem? He doesn't seem to set
'removedOnCompletion' to 'NO' (default is 'YES' according to docu) so I'm
wondering if this could cause the unwanted effect (by the way I cannot see
the bad effect when I try the example in the simulator though).
David I'm sure I miss the point but how does your proposed solution solve
the problem? I'd really like to better understand.
Thanks,
Tino
P.S. David, are you using 'kCAValueFundtionRotateZ' intentionally or is this
a typo, same for CATransform3DMakeRotation(...)?
2010/5/31 David Duncan <email@hidden>
> On May 31, 2010, at 2:24 PM, Rodolfo Niborski wrote:
>
> > My problem is that at the end of the first animation, the "Hello" message
> shows up in its initial position for a fraction of a second.
> > I've tried to set the fillMode of the first animation to
> kCAFillModeForwards with no effect.
>
> What you want to do instead is set the transform of the layer rather than
> trying to modify the animation to stick around. The code would be something
> like this:
>
> CABasicAnimation *rotation = [CABasicAnimation animationWithKeyPath:@
> "transform"];
> rotation.valueFunction = [CAValueFunction functionWithName:
> kCAValueFunctionRotateZ];
> // setup the rest of the animation as you did previously
> layer.transform = CATransform3DMakeRotation(M_PI, 0, 0, 1);
> [layer addAnimation:rotation forKey:@"transform"];
>
> What this does is it creates a basic animation that does the rotation, and
> then overrides the implicit animation that is created when you assign the
> transform to the layer. In this example I use the CAValueFunction rather
> than the extended keypath as this is more efficient and much more
> predictable, but doing so requires 10.6.
> --
> David Duncan
> Apple DTS Animation and Printing
>
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--
-Tino
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