iOS 5 Programming Cookbook phần 9 pdf

... pixels. 15. 0 Introduction | 7 35 Figure 15- 4. Saving our Xcode project on disk 4. On the right side, select Objective-C class, and then press Next (see Figure 15- 5). 15. 0 Introduction | 7 39 Figure 15- 6. ... 7 39 Figure 15- 6. Creating a subclass of UIView 15. 0 Introduction | 741 Figure 15- 5. Creating a new Objective-C class in Xcode 5. In the next screen (Figure 15- 6), make su...

Ngày tải lên: 13/08/2014, 18:20

... at: O’Reilly Media, Inc. 10 05 Gravenstein Highway North Sebastopol, CA 95 4 72 (800) 99 8 -99 38 (in the United States or Canada) (707) 8 29- 051 5 (international or local) (707) 8 29- 0104 (fax) We have a ... 747 15. 3 Constructing, Setting, and Using Colors 7 49 15. 4 Drawing Images 754 15. 5 Drawing Lines 7 59 15. 6 Constructing Paths 766 15. 7 Drawing Rectangles 771 15. 8 Addin...

Ngày tải lên: 13/08/2014, 18:20

... around 30% of iOS devices today are running iOS versions that are about a year or a year and a half old. If today we are working with iOS 5, there are still iOS devices out there running iOS, 3 for ... runs on iOS 5 out to the App Store. Some of the classes that we use are available only on specific versions of iOS. For in- stance, the NSJSONSerialization class is available onl...

Ngày tải lên: 13/08/2014, 18:20

... next line? Ok, go ahead and change the height from 23.0f to 50 .0f: CGRect labelFrame = CGRectMake(0.0f, 0.0f, 100.0f, 50 .0f); 194 | Chapter 2: Implementing Controllers and Views characterOrCharacters]; } - ... Presenting Multiple View Controllers with UITabBarController | 1 85 And the results are exactly what we were looking for: Figure 2- 35. A system Add button The first paramete...

Ngày tải lên: 13/08/2014, 18:20

... interface similar to that shown in Figure 2-72: 2.22 Displaying Popovers with UIPopoverController | 2 59 self.myTableView.dataSource = self; self.myTableView.delegate = self; [self.view addSubview:self.myTableView]; ... Protocol Reference,” http://developer.apple.com/library /ios/ #documentation/uikit/reference/UITableViewDelegate_Protocol/Reference/Reference .html 3 .5 Using Diffe...

Ngày tải lên: 13/08/2014, 18:20

... num = 1} 5. 5 Performing UI-Related Tasks with GCD | 3 75 }); }); In this chapter, you will learn all there is to know about GCD and how to use it to write modern multithreaded apps for iOS and ... choose what you want to do at runtime and change the activity of a program. In 5. 0 Introduction | 355 See Also XXX 5. 3 Invoking Block Objects Problem You've learned how to construct b...

Ngày tải lên: 13/08/2014, 18:20

... /* This is just a sample location */ CLLocationCoordinate2D location; location.latitude = 50 .82 191 692 907181; location.longitude = -0.13811767101287842; /* Create the annotation using the ... a new thread and does its 4 75 } else { /* This is a long press gesture recognizer with more or less than 2 fingers */ } } } One of the applications in iOS that uses long tap gest...

Ngày tải lên: 13/08/2014, 18:20

... YES; } 10.3 Retrieving Properties of Address Book Entries | 55 5 9. 6 Playing Video Files Problem You would like to be able to play video files in your iOS application. Solution Use an instance of the MPMoviePlayerController ... Let’s create it in a simple way, as shown in Figure 9- 1. 9. 8 Accessing the Music Library | 53 9 withFlags:(NSUInteger)flags{ if (flags == AVAudioSession...

Ngày tải lên: 13/08/2014, 18:20

... (second and third generations), provided that the iOS on these devices has been updated to iOS 4.0 or iOS 5. Furthermore, a device could have iOS 5. 0 or later installed on it, but the under- lying ... depending on the iOS devices it targets, can be run and executed on a variety of devices on different operating systems. For instance, if you compile your application with iOS SDK...

Ngày tải lên: 13/08/2014, 18:20

... the image shown in Figure 15- 32 will start moving towards the bottom-right corner, as shown in Figure 15- 33, over a period of 5 seconds. 15. 13 Animating and Moving Views | 8 05 - (BOOL) application:(UIApplication ... rectangle); Figure 15- 30 shows what we will see after applying the scale transformation to the code we wrote in Recipe 15. 7. 15. 11 Scaling Shapes Drawn on Graphic Cont...

Ngày tải lên: 13/08/2014, 18:20