Simultaneous CoreAnimations
Simultaneous CoreAnimations
- Subject: Simultaneous CoreAnimations
- From: Jeshua Lacock <email@hidden>
- Date: Sun, 2 Nov 2008 11:20:50 -0700
Greetings,
My flipbook animation is now working - thanks everyone!
I was under the impression that each CoreAnimation operated as an
independent thread. However, I created a function that sets the
"forKey" property to a unique indentifier each time it is called, and
each time it is called it interrupts the current animation and creates
a new animation.
I need to be able to play several of the same animations at different
locations simultaneously. I can only get it to play in one location at
a time.
Can someone please enlighten me how I might accomplish this? Does each
animation need its own layer or something? I would hate to have to
create a separate function for each possible animation (I have several
types of animations and several possible locations).
I am calling my function with:
// X & Y is set to a unique value each time the function is called
int X;
int Y;
[self flipImages:CGPointMake(X,Y)];
The function is:
//Globals
//array populated with UIImages at init
NSMutableArray *images;
CALayer *effectsLayer;
- (void)flipImages:(CGPoint)p {
int i;
CGImageRef im;
UIImage *thisImg;
images = [NSMutableArray array];
for(i = 0;i<[pieces count];i++)
{
thisImg = [pieces objectAtIndex: i];
im = thisImg.CGImage;
[images addObject:(id)im];
}
CAKeyframeAnimation *anim;
NSString *animKey = [NSString stringWithFormat: @"flipper%i.%i",
(int)p.x, (int)p.y];
[CATransaction begin];
anim = [CAKeyframeAnimation animation];
anim.keyPath = @"contents";
anim.duration = 1.0;
anim.values = images;
anim.calculationMode = kCAAnimationDiscrete;
anim.repeatCount = HUGE_VAL;
[effectsLayer setFrame:CGRectMake(p.x,p.y,200.0,180.0)];
[effectsLayer addAnimation:anim forKey:animKey];
[CATransaction commit];
}
Not sure if I should be using CATransaction begin/commit with this
type of animation, but it was just something I thought could do the
trick.
Thank you,
Jeshua Lacock
Founder/Programmer
3DTOPO Incorporated
<http://3DTOPO.com>
Phone: 877.240.1364
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