Thanks!! :)

Pas pour la version précompilée. Par contre, tu peux utiliser les sources et les modifier pour rendre le soft compatible avec 10.6 et inférieur. Mais le problème, c’est que toute la partie copier/coller, suppression, synchronisation du contenu ne marchera plus. C’est pour cette raison que j’ai pris la décision de limiter à 10.7.

I found this which works to pause and start a CAKeyFrameAnimation:

http://developer.apple.com/library/ios/#qa/qa1673/_index.html

I’m going to try to implement this method now in my program.

setSpeed to 0 to pause the animation
setTimeOffset to control the frame, relative to the current one ?

Well, the documentation is not always very clear, so you’ll probably have to play with all the properties of CAMediaTiming, but I think it might quite easily let you do what you want ^^

Regards,
Damien.

I’m having trouble with IKImageView still. I want to create a means to be able to display multi-frame TIFFs in an IKImageView as it has all the convenience methods including zooming, rotating, cropping etc. As we all know, it’s a pain to resend an image to IKImageView as it redraws and doesn’t maintain the zoom / rotation settings from the previous image.

I have adapted your code for the animations to make it work for TIFFs easily. Your code is great. However what I really want is a means to be able to control the frame with a slider to be able to manually change the frame at will in an IKImageView.

Do you have any ideas how? I have been thinking about using CALayer sublayers, but I’m completely stuck. Any help you can give would be greatly appreciated. Thanks a lot for your code examples in general.

Here’s my adapted protocol for the TIFFs just out of interest for you:

myImageSource = CGImageSourceCreateWithURL((CFURLRef)url, nil);
int numFrames = (int)CGImageSourceGetCount(myImageSource);

CAKeyframeAnimation * animation = [CAKeyframeAnimation animationWithKeyPath:@"contents"];
NSMutableArray * values = [NSMutableArray array];
imageLayer = [CALayer layer];
// create the layer, animation and value array
for(int i = 0; i < numFrames; i++){
theImage = CGImageSourceCreateImageAtIndex(myImageSource,i,NULL);
[values addObject:(id)theImage];
}

[animation setValues:values];
[animation setCalculationMode:@"discrete"];
[animation setDuration:HUGE_VAL];
[animation setRepeatCount:HUGE_VAL];

// create the layer and add the animation
CALayer * layer = [CALayer layer];
// create the main layer and add the animation
[layer addAnimation:animation forKey:@"contents"];
[self setOverlay:layer forType:IKOverlayTypeImage];