I'm trying, unsuccessfully, to combine OpenGL content with other CALayers. In particular, I would like to overlay the OpenGL content above the other layers (with alpha transparency). I run into two problems: My OpenGL rendering is never displayed (even though the OpenGL functions succeeds). The OpenGL rendering is awfully slow (aroun...
Hello I am wondering if there is a way to animate a window in objective-c using core-animation or quartz. I would like to fade out a window when I close it. My OSX operating system is Tiger. Edit: Is it possible to do the same with an applescript application in Xcode by somehow calling a method from objective-c or another way? ...
I am applying a CAAnimation to move a toolbar on- and off-screen. When I touch the superview, that fires the following method: - (void) touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event { [UIView beginAnimations:kViewerToggleToolbarAnimation context:nil]; if (self.viewerToolbarView.isVisible) { self.viewerToolbarVi...
I'm going to look into Core Animation in more detail soon but at the moment I'm just looking to rotate a view by a specified angle. I was wondering if anyone could point me to some code or provide a simple example as a quick search online hasn't pulled up any thing useful! Basically, I need to set an anchor point and then rotate my view...
I am making an Cocoa app with custom interfaces. So far I have implemented one version of the app using CALayer doing the rendering, which has been great given the hierarchical structure of CALayers, and its [hitTest:] function for handling mouse events. In this early version, the model of the app are my custom classes. However, as the ...
I have a very basic app I'm using for experimenting with Core Animation. NSWindow -ContentView --CustomView ---NSTextField I set the content view to be layer backed in interface builder and create a transform.rotation animation. When I add this to the content view it rotates properly, but the NSTextField also remains painted at the or...
Hello, I'm starting working with Core Animation and I started wondering how to handle various kinds of mouse events like mouse entered a CALayer mouse exited a CALayer mouse click on a CALayer For now I'm concentrating just on mouseDown message sent to my custom view. According to the documentation I should use -hitTest:(CGPoint)poin...
I have a notification that fires in my model when certain properties change. As a result, a selector in a particular view object catches the notifications to change the position of the view accordingly. The notifications causes a view on the window to move in a particular direction (always vertically or horizontally and always by a sta...
Hello experts! I am trying to perform some kind of animation of a layer in my iPhone application. It does not matter what I do I always get the same results: after the animation is done it jerks back into it's original position. Even though I set removedOnCompletion to false there is no difference. What am I missing here? Thanks in adv...
I am making an Cocoa app, using Core Animation to create custom UI. However, whenever I drag some layers around, they often leave some "residuals/traces" onto the other layers. So far, my guess is that it is related to my usage of [setNeedsDisplay]. To my understanding, as I drag a layer around, I don't need to call this method to that ...
Hi! This is my first question her so please be gentle: I have followig animation code running smoothly on the simulator as well as on the real device (I am testng on iPhone 3GS 3.1.2). Animation is a simple transition between the 2 views, something like book page flipping. One diffrence betwen simulator an real device (The problem I can...
I'd like to utilize UIViewAnimationTransitionCurlUp more often in my applications however it has a very annoying trait... namely that the first 20% to 35% of it is non-action... I know this is the case because I set an animation duration to 20 seconds to confirm my suspicions that the culprit wasn't simply setup time internal to [UIView]...
Is this possible? I can change the opacity and position (center) of the layer but whenever I try to change the size or origin, it doesn't work. CAAnimationGroup* anigroup = [CAAnimationGroup new]; CGMutablePathRef thePath = CGPathCreateMutable(); CGPathAddRect(thePath, NULL, CGRectMake(0,0, 320, 480)); CGPathAddRect(the...
I'm trying to get a CALayer with a black background to display. I've attached the AppDelegate as the delegate to the file's owner. The console reports correctly the "awaking from nib..." log statement. I however, just see a blank grey window (335x390 in size), with no black box drawn in the middle. What concept am I missing? Thanks in a...
How would I change from one view to another with a slide transition? Thanks. ...
Which is the most elegant and modular way to chain animation in a Core Animation context? I mean to do animations that starts just when other finished (for example, changing position and then opacity).. normal approach is to directly change properties: layer.position = new_point; layer.opacity = 0.0f; but this will do them at the sa...
my background.jpg has 52 32x32 mini poker cards.png and when user touch on 1 card, it will enlarge to 120x 170 px. At any point in time, there is only 1 card being chosen (i.e, being animated) with at most 19 entire cards overlapped (120x170 / 32x32). Should i use Core Animation or do i have to learn OpenGL or use a library such as coc...
Similar to this previous question, I want to apply an arbitrarly-coloured tint to an arbitrary image (a UIImageView). However, I want the tint to fade away over N seconds of time, to have a "pulse" effect. I'll be triggering the pulse every M seconds. While I think I could rig up a naive solution using an NSTimer to change the tint, I t...
Hey guys. I recently posted my problem but neither did I get an answer here or elsewhere, nor can I find my post again... Anyways, I want to try to state my point clearer, hoping you can help me this time maybe. The part of code, this is about, looks like this: CABasicAnimation *animation = nil; CATransform3D transform; animation = ...
I've been using CALayer animations in my program, primarily to move around CALayers with animation on my screen. My problem is that I don't want to exit the layer-moving (card dealing, as it happens) method until all of the cards are done dealing. How can this be done cleanly? Presume that my layer-moving method is called by different m...