iOS 5 Programming Cookbook phần 10 ppsx

... 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 ... */ [xcodeImageView1 setFrame:CGRectMake(0.0f, 0.0f, 100 .0f, 100 .0f)]; [xcodeImageView2 setFrame:CGRectMake(220.0f, 350 .0f, 100 .0f, 100 .0f)]; self.v...

Ngày tải lên: 13/08/2014, 18:20

... Fonts 7 45 15. 2 Drawing Text 747 15. 3 Constructing, Setting, and Using Colors 749 15. 4 Drawing Images 754 15. 5 Drawing Lines 759 15. 6 Constructing Paths 766 15. 7 Drawing Rectangles 771 15. 8 Adding ... Synchronously with GCD 376 5. 7 Performing Non-UI Related Tasks Asynchronously with GCD 379 5. 8 Performing Tasks After a Delay with GCD 3 85 5.9 Performing a Task at Most Onc...

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

... the 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 par...

Ngày tải lên: 13/08/2014, 18:20

... appear to have not yet started. Value of +1.0 shows the progress of 100 %. The progress depicted in figure to come is 0 .5 (or 50 %). To get used to creating progress views, let's immedi- ately ... addSubview:self.buttonPhoto]; buttonRect.origin.y += 50 .0f; self.buttonAudio = [UIButton buttonWithType:UIButtonTypeRoundedRect]; [self.buttonAudio setTitle:@"Audio" 2...

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

... shown in Figure 6-6. 6.6 Displaying Custom Pins on a Map View | 451 CHAPTER 8 Networking, JSON, XML and Twitter 8.0 Introduction iOS apps, when connected to the internet, become more liveley. That ... 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 ge...

Ngày tải lên: 13/08/2014, 18:20

... makeKeyAndVisible]; return 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 ... (__bridge_transfer NSString *) ABMultiValueCopyValueAtIndex(emails, emailCounter); 55 6 | Chapter 10:  Address Book 10 .5 Inserting a Group Entry into the Address Book Pro...

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

... 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 | 739 Figure 15- 6. ... 739 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 sure t...

Ngày tải lên: 13/08/2014, 18:20