HireVietnamese iPhone Trainning

1. HIREVIETNAMESE
iPhone Training
Lesson 3

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Contents
1 Drawing
2 Touch and input
4 Example 3
5 Exercise 3
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Drawing
 Quartz 2D
 Quartz 2D is a two dimensional graphics drawing engine that
makes up the bulk of the UIKit Core Graphics Framework.
 It is a C based application programming interface (API) and as
such is utilized primarily through calls to a range of C functions.
 Quartz 2D drawing typically takes place on a UIView object.
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Drawing
 Drawing a line
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Drawing
 Drawing a line
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Drawing
 Drawing paths
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Drawing
 Drawing paths
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Drawing
 Drawing Rectangle
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Drawing
 Drawing Rectangle
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Drawing
 Filling a path with a color
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Drawing
 Filling a path with a color
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Drawing
 Drawing an image into Graphic Context
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Drawing
 Filling a path with a color
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Touch and input
 Events
 touchesBegan:withEvent:
 touchesEnded:withEvent:
 touchesMoved:withEvent:
 Get all touches on the screen
 NSSet *allTouches = [event allTouches];
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Example 3
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Exercise 3
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