iPhone iOS 6开发入门与Xcode详解

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"《iPhone iOS 6 Development Essentials》是一本针对iOS 6开发的专业教程，旨在帮助开发者深入理解和掌握Apple的最新移动操作系统。本书由Neil Smyth编著，适用于新入行的iOS开发者以及已经熟悉iOS 5的开发者。它提供详尽的指南，从入门到实践，覆盖了从注册Apple Developer计划、下载Xcode和iOS 6 Software Development Kit (SDK)到源代码下载等关键步骤。对于新iOS开发者而言，第1章的“Start Here”部分会引导他们快速进入iOS开发的世界，介绍必要的工具和技术基础，包括如何设置开发环境、理解iOS应用程序架构和设计原则。这部分将帮助新手建立扎实的开发基础。对于已经在iOS 5平台上有所经验的开发者，该书特别关注iOS 6的新特性，如全新的用户界面设计、改进的性能优化和API升级，确保他们在向最新版本迁移时能够顺利过渡，并充分利用新功能。此外，书中还包含了源代码下载链接，供读者在实践中学习和应用所学知识，以及提供反馈和报告错误的途径，鼓励开发者社区的互动与进步。版权方面，本书仅供个人使用，未经授权禁止复制和分发，强调了所有权利保护。值得一提的是，作者在书中仅出于编辑目的使用了商标，确保不会侵犯任何商标权益，同时也提醒读者，书中提供的信息仅供参考，不承担因错误或遗漏导致的任何责任。通过阅读《iPhone iOS 6 Development Essentials》，开发者不仅可以提升技能，还可以紧跟苹果平台的步伐，为自己的应用开发项目增添竞争力。"

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52.14 Drawing an Image into a Graphics Context ................................................................................................. 379

52.15 Image Filtering with the Core Image Framework ........................................................................................ 381

52.16 Summary ..................................................................................................................................................... 382

53. Basic iOS 6 iPhone Animation using Core Animation .................................................................................... 383

53.1 UIView Core Animation Blocks ...................................................................................................................... 383

53.2 Understanding Animation Curves ................................................................................................................. 384

53.3 Receiving Notification of Animation Completion .......................................................................................... 384

53.4 Performing Affine Transformations............................................................................................................... 385

53.5 Combining Transformations .......................................................................................................................... 385

53.6 Creating the Animation Example Application ............................................................................................... 385

53.7 Implementing the Interface File .................................................................................................................... 386

53.8 Drawing in the UIView ................................................................................................................................... 386

53.9 Detecting Screen Touches and Performing the Animation ........................................................................... 386

53.10 Building and Running the Animation Application ....................................................................................... 388

53.11 Summary ..................................................................................................................................................... 388

54. Integrating iAds into an iOS 6 iPhone App .................................................................................................... 389

54.1 iOS iPhone Advertising Options ..................................................................................................................... 389

54.2 iAds Advertisement Formats ......................................................................................................................... 390

54.3 Basic Rules for the Display of iAds ................................................................................................................. 390

54.4 Creating an Example iAds iPhone Application ............................................................................................... 390

54.5 Adding the iAds Framework to the Xcode Project ........................................................................................ 391

54.6 Configuring the View Controller .................................................................................................................... 391

54.7 Designing the User Interface ......................................................................................................................... 391

54.8 Creating the Banner Ad ................................................................................................................................. 392

54.9 Displaying the Ad ........................................................................................................................................... 393

54.10 Implementing the Delegate Methods ......................................................................................................... 394

54.10.1 bannerViewActionShouldBegin ............................................................................................................ 394

54.10.2 bannerViewActionDidFinish ................................................................................................................. 395

54.10.3 bannerView:didFailToReceiveAdWithError .......................................................................................... 395

54.10.4 bannerViewWillLoadAd ........................................................................................................................ 395

54.11 Summary ..................................................................................................................................................... 395

55. An Overview of iOS 6 iPhone Multitasking ................................................................................................... 397

55.1 Understanding iOS Application States ........................................................................................................... 397

55.2 A Brief Overview of the Multitasking Application Lifecycle .......................................................................... 398

55.3 Disabling Multitasking for an iOS Application ............................................................................................... 398

55.4 Checking for Multitasking Support ................................................................................................................ 400

55.5 Supported Forms of Background Execution .................................................................................................. 400

55.6 The Rules of Background Execution .............................................................................................................. 401

55.7 Scheduling Local Notifications ....................................................................................................................... 402

56. Scheduling iOS 6 iPhone Local Notifications ................................................................................................. 403

56.1 Creating the Local Notification iPhone App Project ...................................................................................... 403

56.2 Locating the Application Delegate Method ................................................................................................... 403

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56.3 Adding a Sound File to the Project ................................................................................................................ 404

56.4 Scheduling the Local Notification .................................................................................................................. 404

56.5 Testing the Application .................................................................................................................................. 405

56.6 Cancelling Scheduled Notifications ............................................................................................................... 405

56.7 Immediate Triggering of a Local Notification ................................................................................................ 405

56.8 Summary ....................................................................................................................................................... 406

57. An Overview of iOS 6 Application State Preservation and Restoration ........................................................ 407

57.1 The Preservation and Restoration Process .................................................................................................... 407

57.2 Opting In to Preservation and Restoration.................................................................................................... 408

57.3 Assigning Restoration Identifiers ................................................................................................................... 408

57.4 Default Preservation Features of UIKit .......................................................................................................... 409

57.5 Saving and Restoring Additional State Information ...................................................................................... 410

57.6 Understanding the Restoration Process ........................................................................................................ 410

57.7 Saving General Application State .................................................................................................................. 412

57.8 Summary ....................................................................................................................................................... 412

58. An iOS 6 iPhone State Preservation and Restoration Tutorial ...................................................................... 413

58.1 Creating the Example Application ................................................................................................................. 413

58.2 Trying the Application without State Preservation ....................................................................................... 413

58.3 Opting-in to State Preservation ..................................................................................................................... 413

58.4 Setting Restoration Identifiers ...................................................................................................................... 414

58.5 Encoding and Decoding View Controller State .............................................................................................. 415

58.6 Adding a Navigation Controller to the Storyboard ........................................................................................ 416

58.7 Adding the Third View Controller .................................................................................................................. 418

58.8 Creating the Restoration Class ...................................................................................................................... 419

58.9 Summary ....................................................................................................................................................... 421

59. Integrating Maps into iPhone iOS 6 Applications using MKMapItem ........................................................... 423

59.1 MKMapItem and MKPlacemark Classes ........................................................................................................ 423

59.2 An Introduction to Forward and Reverse Geocoding .................................................................................... 424

59.3 Creating MKPlacemark Instances .................................................................................................................. 426

59.4 Working with MKMapItem ............................................................................................................................ 426

59.5 MKMapItem Options and Enabling Turn-by-Turn Directions ........................................................................ 427

59.6 Adding Item Details to an MKMapItem ......................................................................................................... 429

59.7 Summary ....................................................................................................................................................... 430

60. An Example iOS 6 iPhone MKMapItem Application ...................................................................................... 431

60.1 Creating the MapItem Project ....................................................................................................................... 431

60.2 Designing the User Interface ......................................................................................................................... 431

60.3 Converting the Destination using Forward Geocoding ................................................................................. 433

60.4 Launching the Map ........................................................................................................................................ 434

60.5 Adding Build Libraries .................................................................................................................................... 435

60.6 Building and Running the Application ........................................................................................................... 435

60.7 Summary ....................................................................................................................................................... 435

61. Getting iPhone Location Information using the iOS 6 Core Location Framework .......................................... 437

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61.1 The Basics of Core Location ........................................................................................................................... 437

61.2 Configuring the Desired Location Accuracy ................................................................................................... 437

61.3 Configuring the Distance Filter ...................................................................................................................... 438

61.4 The Location Manager Delegate ................................................................................................................... 438

61.5 Obtaining Location Information from CLLocation Objects ............................................................................ 439

61.5.1 Longitude and Latitude .......................................................................................................................... 439

61.5.2 Accuracy ................................................................................................................................................. 439

61.5.3 Altitude................................................................................................................................................... 439

61.6 Calculating Distances ..................................................................................................................................... 439

61.7 Location Information and Multitasking ......................................................................................................... 439

61.8 Summary ....................................................................................................................................................... 440

62. An Example iOS 6 iPhone Location Application ............................................................................................ 441

62.1 Creating the Example iOS 6 iPhone Location Project .................................................................................... 441

62.2 Adding the Core Location Framework to the Project .................................................................................... 441

62.3 Designing the User Interface ......................................................................................................................... 441

62.4 Creating the CLLocationManager Object ...................................................................................................... 443

62.5 Implementing the Action Method ................................................................................................................. 443

62.6 Implementing the Application Delegate Methods ........................................................................................ 444

62.7 Building and Running the iPhone Location Application ................................................................................ 445

63. Working with Maps on the iPhone with MapKit and the MKMapView Class ............................................... 447

63.1 About the MapKit Framework ....................................................................................................................... 447

63.2 Understanding Map Regions ......................................................................................................................... 447

63.3 About the iPhone MKMapView Tutorial ....................................................................................................... 447

63.4 Creating the iPhone Map Tutorial ................................................................................................................. 448

63.5 Adding the MapKit Framework to the Xcode Project.................................................................................... 448

63.6 Creating the MKMapView Instance and Toolbar .......................................................................................... 448

63.7 Configuring the Map View ............................................................................................................................. 450

63.8 Changing the MapView Region ..................................................................................................................... 450

63.9 Changing the Map Type ................................................................................................................................. 450

63.10 Testing the iPhone MapView Application ................................................................................................... 451

63.11 Updating the Map View based on User Movement .................................................................................... 451

63.12 Adding Basic Annotations to a Map View ................................................................................................... 452

64. Using iOS 6 Event Kit to Create Date and Location Based Reminders ........................................................... 455

64.1 An Overview of the Event Kit Framework ..................................................................................................... 455

64.2 The EKEventStore Class ................................................................................................................................. 455

64.3 Accessing Calendars in the Database ............................................................................................................ 457

64.4 Accessing Current Reminders ........................................................................................................................ 458

64.5 Creating Reminders ....................................................................................................................................... 458

64.6 Creating Alarms ............................................................................................................................................. 459

64.7 Creating the Example Project ........................................................................................................................ 459

64.8 Designing the User Interface for the Date/Time Based Reminder Screen .................................................... 459

64.9 Implementing the Reminder Code ................................................................................................................ 461

64.10 Hiding the Keyboard .................................................................................................................................... 462

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64.11 Designing Location-based Reminder Screen ............................................................................................... 463

64.12 Creating a Location-based Reminder .......................................................................................................... 464

64.13 Adding the Core Location and Event Kit Frameworks ................................................................................. 467

64.14 Testing the Application ................................................................................................................................ 467

64.15 Summary ..................................................................................................................................................... 468

65. Accessing the iPhone Camera and Photo Library .......................................................................................... 469

65.1 The iOS 6 UIImagePickerController Class ...................................................................................................... 469

65.2 Creating and Configuring a UIImagePickerController Instance ..................................................................... 469

65.3 Configuring the UIImagePickerController Delegate ...................................................................................... 470

65.4 Detecting Device Capabilities ........................................................................................................................ 471

65.5 Saving Movies and Images ............................................................................................................................ 472

65.6 Summary ....................................................................................................................................................... 473

66. An Example iOS 6 iPhone Camera Application ............................................................................................. 475

66.1 An Overview of the Application .................................................................................................................... 475

66.2 Creating the Camera Project ......................................................................................................................... 475

66.3 Adding Framework Support .......................................................................................................................... 475

66.4 Designing the User Interface ......................................................................................................................... 475

66.5 Implementing the Action Methods ............................................................................................................... 477

66.6 Writing the Delegate Methods ...................................................................................................................... 478

66.7 Building and Running the Application ........................................................................................................... 479

67. Video Playback from within an iOS 6 iPhone Application ............................................................................. 483

67.1 An Overview of the MPMoviePlayerController Class .................................................................................... 483

67.2 Supported Video Formats ............................................................................................................................. 483

67.3 The iPhone Movie Player Example Application ............................................................................................. 483

67.4 Adding the MediaPlayer Framework to the Project ...................................................................................... 484

67.5 Designing the User Interface ......................................................................................................................... 484

67.6 Declaring the MoviePlayer Instance .............................................................................................................. 484

67.7 Implementing the Action Method ................................................................................................................. 484

67.8 The Target-Action Notification Method ........................................................................................................ 485

67.9 Build and Run the Application ....................................................................................................................... 485

68. Playing Audio on an iPhone using AVAudioPlayer ........................................................................................ 487

68.1 Supported Audio Formats ............................................................................................................................. 487

68.2 Receiving Playback Notifications ................................................................................................................... 487

68.3 Controlling and Monitoring Playback ............................................................................................................ 488

68.4 Creating the iPhone Audio Example Application ........................................................................................... 488

68.5 Adding the AVFoundation Framework .......................................................................................................... 488

68.6 Adding an Audio File to the Project Resources ............................................................................................. 489

68.7 Designing the User Interface ......................................................................................................................... 489

68.8 Implementing the Action Methods ............................................................................................................... 490

68.9 Creating and Initializing the AVAudioPlayer Object ...................................................................................... 491

68.10 Implementing the AVAudioPlayerDelegate Protocol Methods ................................................................... 491

68.11 Building and Running the Application ......................................................................................................... 492

69. Recording Audio on an iPhone with AVAudioRecorder ................................................................................ 493

69.1 An Overview of the iPhone AVAudioRecorder Tutorial ................................................................................ 493

69.2 Creating the Recorder Project ....................................................................................................................... 493

69.3 Designing the User Interface ......................................................................................................................... 493

69.4 Creating the AVAudioRecorder Instance ....................................................................................................... 495

69.5 Implementing the Action Methods ............................................................................................................... 496

69.6 Implementing the Delegate Methods ........................................................................................................... 497

69.7 Testing the Application .................................................................................................................................. 498

70. Integrating Twitter and Facebook into iPhone iOS 6 Applications ................................................................ 499

70.1 The iOS 6 UIActivityViewController class ...................................................................................................... 499

70.2 The Social Framework ................................................................................................................................... 499

70.3 iOS 6 Accounts Framework ........................................................................................................................... 500

70.4 Using the UIActivityViewController Class ...................................................................................................... 501

70.5 Using the SLComposeViewController Class ................................................................................................... 503

70.6 Summary ....................................................................................................................................................... 504

71. An iPhone iOS 6 Facebook Integration Tutorial using UIActivityViewController ........................................... 505

71.1 Creating the Facebook Social App ................................................................................................................. 505

71.2 Designing the User Interface ......................................................................................................................... 505

71.3 Creating Outlets and Actions ......................................................................................................................... 506

71.4 Implementing the selectImage and Delegate Methods ................................................................................ 507

71.5 Hiding the Keyboard ...................................................................................................................................... 508

71.6 Posting the Message to Facebook ................................................................................................................. 508

71.7 Adding the Social Framework to the Build Phases ........................................................................................ 509

71.8 Running the Social Application ...................................................................................................................... 509

71.9 Summary ....................................................................................................................................................... 510

72. iPhone iOS 6 Facebook and Twitter Integration using SLRequest ................................................................. 511

72.1 Using SLRequest and the Account Framework.............................................................................................. 511

72.2 Twitter Integration using SLRequest ............................................................................................................. 512

72.3 Facebook Integration using SLRequest ......................................................................................................... 515

72.4 Summary ....................................................................................................................................................... 516

73. An iOS 6 iPhone Twitter Integration Tutorial using SLRequest ..................................................................... 517

73.1 Creating the TwitterApp Project ................................................................................................................... 517

73.2 Designing the User Interface ......................................................................................................................... 517

73.3 Modifying the Interface File .......................................................................................................................... 518

73.4 Accessing the Twitter API .............................................................................................................................. 519

73.5 Calling the getTimeLine Method ................................................................................................................... 521

73.6 The Table View Delegate Methods ............................................................................................................... 521

73.7 Adding the Account and Social Frameworks to the Build Phases ................................................................. 522

73.8 Building and Running the Application ........................................................................................................... 522

73.9 Summary ....................................................................................................................................................... 523

74. Making Store Purchases with the SKStoreProductViewController Class ....................................................... 525

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