13
Performing Simple Animations and Video Playback
WHAT YOU WILL LEARN IN THIS CHAPTER
- Using the NSTimer class to create timers that call methods at regular intervals
- How to perform simple animations using the NSTimer class
- How to perform an affine transformation on an Image View
- Animating a series of images using an Image View
- How to play back videos in your iPhone application
Up to this point, the applications you have written have all made use of the standard views provided by the iOS SDK. As Apple has reiterated, the iPhone is not just for serious work; it is also a gaming platform.
In this chapter, you have some fun creating something visual. You learn how to perform some simple animations using a timer object and then perform some transformations on a view. Although it is beyond the scope of this book to show you how to create animations using OpenGL ES, this chapter does demonstrate some interesting techniques that you can use to make your applications come alive. In addition, you will also learn how to play back a video in your iPhone application.
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