Hi StackOverflowers I am working on an iphone application that displays tiled maps. I am currently using a CATiledLayer in a UIScrollView : MyTiledDelegate *delegate=[[MyTiledDelegate alloc] initWithMapLayer:map]; tileLayer = [CATiledLayer layer]; tileLayer.delegate = delegate; [scrollView.layer addSublayer:tileLaye...
After countless tries I got my animation animating right (Why oh why is the layer's coordinate system Y flipped from the view's coordinate system, I will never guess) but it seems that it degrades the image quality for some reason: (green circled are examples of the original good quality images, the red circled is to emphasize the dif...
I have some code that uses CALayers to have bubbles flowing bottom to top. If the user touches the screen I have some code that replaces the currently running animation with one that has a toPoint where the finger touched down. When the animation switches it causes a flicker on the device (not on the simulator). Any tips on eliminating t...
Is there any problem applying multiple transforms to a UIView and it's corresponding CALayer? Specifically, can you "mix and match" CATransform3Ds with CGAffineTransforms without running into issues? Also are there any problems with setting some transforms directly while animating another transform change simultaneously? Are there any...
In catalog.xml file of frontend template folder I had blocks defined for tabs to display product tags,additional information etc.in this way: additional Additional Information catalog/product_view_attributes catalog/product/view/attributes.phtml Which was working fine in the remote system,but when i installed it in local magento and tr...
Hi, I'm doing some animations with core animation, but I can't found a way to know with a notification or event when the animation block has finish, like in UIVIew animation block you have setAnimationDidStopSelector: how can I know this in core animation, thanks for any help ...
How do I draw outlined text using Core Animation layers? The stroke attributes of an NSAttributedString seem to get ignored by CATextLayer and I can't find a standard filter that I can apply to the layer that gives good results. Surely this should be easy? ...
On the iPhone (though I imagine it's an equally valid question in Cocoa) I have a UIScrollView around a UIView backed by a CATiledLayer. The way it works by default is to load any uncached/unfetched tiles when my viewport scrolls over a blank section of the CATiledLayer. What I would like to know is if there's a way to trigger CATiledLa...
I'm struggling with conceptualizing animations with a CALayer as opposed to UIView's own animation methods. Throw "Core Animation" into this and, well, maybe someone can articulate these concepts from a high level so I can better visualize what's happening and why I'd want to migrate UIView animations (which I'm quite familiar with now) ...
I'm trying to flip between two views. That's easy, the code is below, but I also want to simultaneously flip the button used to perform the flip. You can see this behavior in the iPod application when you're playing a track; tapping the flip button flips between the cover art and the track listing, but it flips the button at the same ti...
Hi all, I am developing a commerce application. When I add an item to the cart, I want to create an effect where an image of the item follows a curve path and ends up at the cart tab. This can be seen in Barnes and Nobles Bookstore app in the App store. ...
I am having a problem with a UIView that when using a solid colour for the background, animates perfectly fine. However when I set a background image for it's colour instead, the UIView animation doesn't work properly. It looks like a ghost outline of the page curl, but the UIView itself is 100% transparent (If that makes sense). The i...
I think a value of 1.0 represents one second, but I'm not very sure with that. Is that a hexadecimal system? What would you provide to give exactly one minute for duration? ...
I am rotating a view with this: CGAffineTransform rotatedTransform = CGAffineTransformRotate(CGAffineTransformIdentity, rotationValue); I have an object which I want to spin around for about 320 degrees. Now Core Animation is clever and just rotates it as much as needed, doing that by rotating it with -40 degrees. So the object rotate...
I have a Core Animation running and want to pause it when a button is pressed. So there is a method -pauseAnimation. When the animation is paused, I want the animated view to stay in the state as it currently was while animating. i.e. if a view moves from top left to bottom right, and somewhere in the middle the animation is paused, the ...
I was reading that OpenGL ES can work together with Core Animation. So I wonder if I can re-use some of my hard-worked knowledge on Core Animation when I start doing OpenGL ES stuff... ...
For some reason Xcode tells me that it doesn't find symbols as soon as I use something like kCAFillModeForwards. There must be a library or class that I have to include...but which one? The normal Core Animation stuff works fine like [myView beginAnimations...]. What's the trick to get the more sophisticated animation stuff to work? I'v...
Are all these things basically the same? I did the exact same thing now with CAAnimation rather than using an simple UIView animation block. What are the big differences? ...
Example: 1) fade an uiview from alpha 0.0 to 0.2 2) fade back to 0.15 3) fade to 0.25 4) fade to 0.2 5) fade to 0.35 6) fade to 0.3 7) fade to 0.45 8) fade to 0.4 ... and so on. each with a duration of 0.05 sec. The effect is a flashy appearing view. Just for fun. Previously I did this with simple UIView animation blocks, where every n...
I'd like to have a better understanding of this parameter in + (id)animationWithKeyPath:(NSString *)keyPath They just say: "The key path of the property to be animated." In some example snippets I see things like: CABasicAnimation *fadeInAnimation = [CABasicAnimation animationWithKeyPath:@"opacity"]; CAKeyframeAnimation *animatedI...