2014/10/15 下午 10:04:51

iphone Programming Glossary: calayer's

Where can I find an explanation of all transform matrix fields?

http://stackoverflow.com/questions/1260741/where-can-i-find-an-explanation-of-all-transform-matrix-fields

I find an explanation of all transform matrix fields I've seen in some document from apple that the matrix behind a CALayer's transform property has fields like m14 m21 m22 and so on. I also remember that I saw a table that explains those fields..

How Can I Record the Screen with Acceptable Performance While Keeping the UI Responsive?

http://stackoverflow.com/questions/14343606/how-can-i-record-the-screen-with-acceptable-performance-while-keeping-the-ui-res

performance issue in an Objective C based iOS app. I have an iOS application that captures the screen's contents using CALayer's renderInContext method. It attempts to capture enough screen frames to create a video using AVFoundation. The screen recording..

Changing my CALayer's anchorPoint moves the view

http://stackoverflow.com/questions/1968017/changing-my-calayers-anchorpoint-moves-the-view

my CALayer's anchorPoint moves the view I want to alter the anchorPoint but keep the view in the same place. I've tried NSLog ing self.layer.position.. The Layer Geometry and Transforms section of the Core Animation Programming Guide explains the relationship between a CALayer's position and anchorPoint properties. Basically the position of a layer is specified in terms of the location of the layer's..

Using CALayer Delegate

http://stackoverflow.com/questions/2015353/using-calayer-delegate

of those sublayers so the delegate method can tell the layer what to draw. My question is What should I provide as CALayer's delegate The documentation says not to use the UIView the layers reside in as this is reserved for the main CALayer of the..

Grouping two Core Animations with CAAnimationGroup causes one CABasicAnimation to not run

http://stackoverflow.com/questions/2120068/grouping-two-core-animations-with-caanimationgroup-causes-one-cabasicanimation-t

share improve this question You are attempting to simultaneously animate two changes to one property your CALayer's transform. In the first animation you are using a helper keypath to change the transform to produce a rotation and in the..

UIView border with fade or blur effect

http://stackoverflow.com/questions/2306043/uiview-border-with-fade-or-blur-effect

help me objective c iphone uitableview uikit uiview share improve this question I've found a solution I've useed CALayer's property mask CALayer viewLayer back layer CALayer maskCompoudLayer CALayer layer maskLayer.bounds viewLayer.bounds maskLayer..

fastest way to draw a screen buffer on the iphone

http://stackoverflow.com/questions/2395650/fastest-way-to-draw-a-screen-buffer-on-the-iphone

kCGRenderingIntentDefault also global probably doesn't need to be self.window.layer.contents cgIm set the UIWindow's CALayer's contents to the image yay works CGImageRelease cgIm we should do this at some stage... CGDataProviderRelease dataProvider..

CGContextDrawImage very slow on iPhone 4

http://stackoverflow.com/questions/3915490/cgcontextdrawimage-very-slow-on-iphone-4

Core Animation CALayer mask animation performance

http://stackoverflow.com/questions/4520941/core-animation-calayer-mask-animation-performance

the alpha channel to create the normal and highlighted states by masking a background image. I accomplished this with CALayer's mask property Inside a UIView subclass' init method... Create the mask layer by settings its contents as our PNG icon. CALayer..

How do you explicitly animate a CALayer's backgroundColor?

http://stackoverflow.com/questions/518192/how-do-you-explicitly-animate-a-calayers-backgroundcolor

do you explicitly animate a CALayer's backgroundColor I'm trying to construct a CABasicAnimation to animate the backgroundColor property of a Core Animation..

objective-? CALayer UIView real rotation

http://stackoverflow.com/questions/8271416/objective-calayer-uiview-real-rotation

image below http i.piccy.info i7 f8ff7fe488c7c492e6ff6a689bc9cdeb 1 5 2127 60800682 rotation.png I'm trying to use the CALayer's transform but I get something like this http i.piccy.info i7 bbb672b058fdfdd251cc90f1ce2b9c1f 1 5 2128 9488743 rotate2.png..