2014/10/15 下午 10:04:51

iphone Programming Glossary: calayers

iPhone board game: OpenGL ES or CoreGraphics? [closed]

http://stackoverflow.com/questions/1082511/iphone-board-game-opengl-es-or-coregraphics

suggest drawing the discrete elements of the game board pieces counters board squares etc. as individual UIViews or CALayers then animating those layers or views around. UIViews aren't too much heavier than CALayers and they use Core Animation behind.. as individual UIViews or CALayers then animating those layers or views around. UIViews aren't too much heavier than CALayers and they use Core Animation behind the scenes to do simple movement scaling or fading animations. They can also respond.. Animation behind the scenes to do simple movement scaling or fading animations. They can also respond to touch events. CALayers are useful if you want to build a more cross platform Mac and iPhone game or if you need to do more complex animations...

When to use CALayer on the Mac/iPhone?

http://stackoverflow.com/questions/1447598/when-to-use-calayer-on-the-mac-iphone

the same level of performance on the iPhone. As rpetrich mentions in his comment UIViews are a thin wrapper around CALayers. On the Mac CALayers are much more lightweight than NSViews. As Ben points out you can go beyond the capabilities of implicit.. performance on the iPhone. As rpetrich mentions in his comment UIViews are a thin wrapper around CALayers. On the Mac CALayers are much more lightweight than NSViews. As Ben points out you can go beyond the capabilities of implicit animations by working.. than NSViews. As Ben points out you can go beyond the capabilities of implicit animations by working directly with CALayers even providing some 3 D effects through CATransform3D. In many cases you can do this even with your standard views by accessing..

Using CALayer Delegate

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

in as this is reserved for the main CALayer of the view. But creating another class just to be the delegate of the CALayers I create defeats the purpose of not subclassing CALayer. What are people typically using as the delegate for CALayer Or..

Rounded UIView using CALayers - only some corners - How?

http://stackoverflow.com/questions/2264083/rounded-uiview-using-calayers-only-some-corners-how

UIView using CALayers only some corners How In my application there are four buttons named as follows. Top left Bottom left Top right Bottom..

Drawing formulas with Quartz 2d

http://stackoverflow.com/questions/2907045/drawing-formulas-with-quartz-2d

I did override the standard CALayer rendering architecture for the generation of PDFs from these equations because CALayers don't render as vector elements by default. For an example of how this rendering works in my application see the open source..

How do I apply a perspective transform to a UIView?

http://stackoverflow.com/questions/347721/how-do-i-apply-a-perspective-transform-to-a-uiview

example of this with code can be found here where I've implemented touch based rotation and scaling on a couple of CALayers based on an example by Bill Dudney. The newest version of the program at the very bottom of the page implements this kind..

Bold & Non-Bold Text In A Single UILabel?

http://stackoverflow.com/questions/3586871/bold-non-bold-text-in-a-single-uilabel

lighter and simpler than 2 UILabels. iOS 3.2 and above Example. Don't forget to add QuartzCore framework needed for CALayers and CoreText needed for the attributed string. #import QuartzCore QuartzCore.h #import CoreText CoreText.h Below example..

Fast and Lean PDF Viewer for iPhone / iPad / iOs - tips and hints?

http://stackoverflow.com/questions/3889634/fast-and-lean-pdf-viewer-for-iphone-ipad-ios-tips-and-hints

Overhead time drawing a full PDF page to a CALayer individual tiles can be seen rendering even with a tileSize tweak CALayers cant be prepared ahead of time rendered off screen . Generally PDF viewers are pretty heavy on memory too. Even monitor..

Method for animating images (like a movie) on iPhone without using MPMoviePlayer

http://stackoverflow.com/questions/442076/method-for-animating-images-like-a-movie-on-iphone-without-using-mpmovieplayer

share improve this question You could use a Core Animation CALayer to host your animation and swap a series of CALayers in and out of that main layer to perform your frame by frame animation. You can set the content of an image frame hosting.. You can set the content of an image frame hosting CALayer to a CGImageRef using its contents property. A series of CALayers containing your images could be created and stored in an NSMutableArray as needed then removed when done to minimize memory..

Just two rounded corners? [duplicate]

http://stackoverflow.com/questions/4845211/just-two-rounded-corners

two rounded corners duplicate This question already has an answer here Rounded UIView using CALayers only some corners How 6 answers In my iPad app I want a second view to appear within the main when the user clicks..

how can I use animation in cocos2d?

http://stackoverflow.com/questions/486609/how-can-i-use-animation-in-cocos2d

I have no idea how to do this in cocos2d or even what that is but you can do this using Core Animation either with CALayers or UIViews. Probably the simplest way would be to create a UIImageView containing an image of your roulette wheel and animate..

What's the best approach to draw lines between views?

http://stackoverflow.com/questions/5847876/whats-the-best-approach-to-draw-lines-between-views

drawRect method to draw the line i need but unsure how to make it dynamically read in the values On the subview use CALayers and draw on there Create a draw line method using CGContext functions Something else Cheers for the help iphone cocoa touch..

How to display a progress indicator overlay/HUD on iPhone?

http://stackoverflow.com/questions/593147/how-to-display-a-progress-indicator-overlay-hud-on-iphone

with the table content. I thought about creating a new UIWindow but the documentation basically says don't . I know CALayers can overlap each other so that would be an option but I can't put a progress indicator inside a CALayer can I Should I roll..