iOS 5 Programming Cookbook phần 7 pptx

... 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 ... requestThumbnailImagesAtTimes:requestedThumbnails timeOption:MPMovieTimeOptionExact]; 9 .7 Capturing Thumbnails from a Video File | 53 5 You can access differe...

Ngày tải lên: 13/08/2014, 18:20

... controller will need to have reference to the 254 | Chapter 2: Implementing Controllers and Views Figure 2 -78 . Split keyboard on the iPad in landscape mode iOS broadcasts various notifications related ... in Figure 2 -79 : 2.24 Listening and Reacting to Keyboard Notifications | 271 Discussion Although you might rarely find it useful, you can apply indentation to table view cells in the...

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...

Ngày tải lên: 13/08/2014, 18:20

... 73 3 15. 1 Enumerating and Loading Fonts 7 45 15. 2 Drawing Text 74 7 15. 3 Constructing, Setting, and Using Colors 74 9 15. 4 Drawing Images 75 4 15. 5 Drawing Lines 75 9 15. 6 Constructing Paths 76 6 15. 7 Drawing ... 4 57 7. 1 Detecting Swipe Gestures 459 7. 2 Detecting Rotation Gestures 461 7. 3 Detecting Panning and Dragging Gestures 4 65 7. 4 Detecting Long Press G...

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

... addSubview:self.myTextField]; And the results are shown here: 2.14 Accepting User Text Input with UITextField | 2 05 Figure 2- 47. A placeholder is shown when there is no text in a text field Text fields have two really ... navigation bar That was simple and easy. But if you are an iOS user, you probably have noticed that the system apps that come preconfigured on iOS have a different Ad...

Ngày tải lên: 13/08/2014, 18:20

... location */ CLLocationCoordinate2D location; location.latitude = 50 .821916929 071 81; location.longitude = -0.1381 176 71012 878 42; /* Create the annotation using the location */ MyAnnotation ... */ [self.view addGestureRecognizer:self.swipeGestureRecognizer]; } 7. 1 Detecting Swipe Gestures | 459 See Also Recipe 7. 6 7. 3 Detecting Panning and Dragging Gestures Problem You w...

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 ... "Saving_and_Loading_the_State_of_Multitasking _iOS_ AppsAppDelegate.h" @implementation Saving_and_Loading_the_State_of_Multitasking _iOS_ AppsAppDelegate 12.6 Saving and L...

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 | 73 9 Figure 15- 6. ... 73 9 Figure 15- 6. Creating a subclass of UIView 15. 0 Introduction | 74 1 Figure 15- 5. Creating a new Objective-C class in Xcode 5. In the next screen (Figure 15- 6), mak...

Ngày tải lên: 13/08/2014, 18:20

... 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 Contexts | 79 7 Figure 15- 27. An axial ... 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 0...

Ngày tải lên: 13/08/2014, 18:20