core-animation

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Cubic panorama projection with Core Animation. Is it possible?

I\'m trying to build a native viewer for cubic panoramas. Here is a web version of what I would like to achieve: http://www.apple.com/html5/showcase/vr/[详细]

2023-03-30 04:52 分类：问答
New CALayer.contents does not display until view is resized

I have a CALayer that needs to display frames of video. Every time a frame is rendered (as a CGImageRef), this method is called:[详细]

2023-03-30 04:14 分类：问答
How to animate a pulsating blue dot with Core Animation?

I am a Core Animation newbie and I want to animate a pulsating blue dot very similar to what the Maps application does with the GPS position.[详细]

2023-03-30 00:52 分类：问答
How to implement Lion style swipe and slide away animation

I am wanting to implement history navigation in my app that mimics the slide away animation found in Safari on Lion and in XCode where a top view slides away at the speed of swipe to reveal the view u[详细]

2023-03-29 18:07 分类：问答
Core Animation drawLayer:inContext driven by NSTimer, am I doing it right?

I\'m doing a project which inv开发者_运维知识库olves Core Animation and AV Foundation. I want to use Core Animation to render some effects, then export it to video file via AV Foundation. The animatio[详细]

2023-03-29 09:25 分类：问答
Do I have to use PresentModalViewController?

I\'m doing some \"interesting\" view transitions, and I\'m finding myself working around the functionality of \"presentModalViewController\" in a way that doesn\'t feel right.[详细]

2023-03-29 07:56 分类：问答
iOS UIBezierAnimation curves, howto to create some sort of arc?

I\'m pretty sure this is a rather simple and straightforward question for anyone that has ever tried this before , but i\'m kind of a newbie to what you would call \"advanced\" animation.[详细]

2023-03-29 07:25 分类：问答
Animating simultaneously window and view frame in Cocoa

I need to animate a view frame size adding 100px of height, but I need the window grow up simultaneously with the view.[详细]

2023-03-29 07:21 分类：问答
AVVideoCompositionCoreAnimationTool and custom CALayer: setNeedsDisplay each frame?

I\'m using the AVVideoCompositionCoreAnimationTool with a AVAssetExportSession to draw overlays into a video on iPhone.[详细]

2023-03-29 06:39 分类：问答
Create CATransition for UIView from current state

I\'m trying to make a push animation from one side using a CATransition.I do this in method which handles two UIViews, one for the background and another for the foreground.The animated UIView is be t[详细]

2023-03-29 06:14 分类：问答