Core Animation: Simplified Animation Techniques for Mac and by Marcus Zarra PDF

By Marcus Zarra

ISBN-10: 0321617754

ISBN-13: 9780321617750

Apple’s center Animation framework permits Mac OS X, iPhone, and iPod contact builders to create richer, extra visible applications–more simply than ever and with some distance much less code. Now, there’s a entire, example-rich, full-color connection with center Animation for knowledgeable OS X and iPhone builders who have the desire to make the main of this robust framework.

 

Marcus Zarra and Matt lengthy show precisely what middle Animation can and can’t do, easy methods to use it so much effectively–and find out how to keep away from misusing it. construction in your present wisdom of Objective-C, Cocoa, and Xcode, they current professional strategies, insights, and downloadable code for all facets of middle Animation programming, from keyframing to motion picture playback.

 

Zarra and lengthy completely evaluation similarities and ameliorations among middle Animation at the Mac and iPhone, assisting you write code that may simply circulate among systems. in addition they current a whole bankruptcy of cutting edge options and confirmed “rules of thumb” for optimizing middle Animation’s real-world functionality.

 

Coverage contains:

  • Taking complete benefit of center Animation’s light-weight layers and views
  • Using keyframes to achieve entire keep watch over over your animations
  • Creating startling results with center Animation transforms
  • Leveraging center Image’s robust filtering functions from inside middle Animation
  • Playing QuickTime videos utilizing center Animation’s QTMovieLayer
  • Using the OpenGL layer to accomplish higher regulate over motion picture playback
  • Integrating complicated Quartz Composer visualizations into your consumer interfaces
  • How to exploit helper layers to attract gradients, composite shapes, and mirror sublayers
  • Adding mouse and keyboard consumer interplay issues, and lots more and plenty more…

 

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Extra info for Core Animation: Simplified Animation Techniques for Mac and iPhone Development

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That is all you need to do. You create your animations and add them to your layer. The –addAnimation call starts the animation. Keyframe Animation Timing Core Animation provides a high level of granularity for specifying how your animation will play. By default, a keyframe animation plays back evenly, dividing the time specified in the animation’s duration field by the total number of keyframes minus one. 5 You can gain further control of your animation timing with the keyTimes field, which you can use to specify a percentage for each keyframe from the animation’s total duration.

The position property is the center point of the layer. It is set relative to its containing layer. Com Using CABasicAnimation 37 If you add this listing to your project we created in the previous section, you simply connect a button to the action in Interface Builder. To do so, follow these steps: 1. h and add an action declaration, as follows: @interface AppDelegate : NSObject { IBOutlet NSWindow *window; CALayer *layer; } - (IBAction)animate:(id)sender; 3 2. m and add the animate implementation code provided in Listing 3-8.

Keyframe animation enables you to specify the values for each of the major steps in your animation and then fills in the rest for you. Keyframe Animation Timing . Keyframe Animation for UI Cues The terminology used to describe keyframe animation is rooted in the film industry. As film animation moved to computers, this concept of filling in between the keyframes has remained a necessary part of creating smooth animations using a process called tweening. Core Animation is no different. You specify the keyframes in your animation, and Core Animation handles the tweening process for you.

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Core Animation: Simplified Animation Techniques for Mac and iPhone Development by Marcus Zarra


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