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Re: Leak when animating Core Animation Superlayer

Subject: Re: Leak when animating Core Animation Superlayer
From: Brian Christensen <email@hidden>
Date: Sat, 31 May 2008 18:14:06 -0400
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On May 31, 2008, at 16:39, "Stéphane Droux" <email@hidden>

> When I run the program in MallocDebug, the memory usage goes up every time the timer function is executed. If I change the animation to be on l2 instead of l1, or if I create l2 as a sublayer of mainLayer, the memory usage remains constant. Am I doing something wrong ?

An NSTimer is not really the appropriate way to do this. Have a look at CABasicAnimation, which you might use in the following manner (untested code written on an iPhone, so no guarantees):

CABasicAnimation *anim = [CABasicAnimation animationWithKeyPath:@"opacity"];

[anim setFromValue:1.0];
[anim setToValue:0.2];
[anim setAutoreverses:YES];
[anim setDuration:1.0];

[l2 addAnimation:anim forKey:nil];

I would recommend reviewing the Core Animation documentation for additional examples.

/brian

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