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详细说明： windows8编程 Introduction ....................................................................................................... 11 Who This Book Is For ................................................................................................................................................................. 12 What You'll Need ........................................................................................................................................................................ 13 A Formatting Note........ .............................................................................................................................................................. 13 Acknowledgements .................................................................................................................................................................... 13 Errata & Book Support .............................................................................................................................................................. 14 We Want to Hear from You ..................................................................................................................................................... 15 Stay in Touch ................................................................................................................................................................................ 15 Chapter 1: The Life Story of a WinRT App: Platform Characteristics of Windows 8 .......................................................... 16 Leaving Home: Onboarding to the Store ............................................................................................................................ 17 Discovery, Acquisition, and Installation ............................................................................................................................... 20 Playing in Your Own Room: The App Container .............................................................................................................. 23 Different Views of Life: View States and Resolution Scaling ......................................................................................... 27 Those Capabilities Again: Getting to Data and Devices ................................................................................................. 30 Taking a Break, Getting Some Rest: Process Lifecycle Management ......................................................................... 33 Remembering Yourself: App State and Roaming ............................................................................................................. 35 Coming Back Home: Updates and New Opportunities .................................................................................................. 39 And, Oh Yes, Then There’s Design ......................................................................................................................................... 40 Chapter 2: Quickstart ........................................................................................ 42 A Really Quick Quickstart: The Blank App Template ....................................................................................................... 42 Blank App Project Structure ................................................................................................................................................ 45 QuickStart #1: Here My Am! and an Introduction to Blend for Visual Studio ........................................................ 50 Design Wireframes ................................................................................................................................................................. 50 Create the Markup ................................................................................................................................................................. 53 Styling in Blend ....................................................................................................................................................................... 55 Adding the Code .................................................................................................................................................................... 59 Extra Credit: Receiving Messages from the iframe ...................................................................................................... 71 The Other Templates ................................................................................................................................................................. 73 Fixed Layout Template .......................................................................................................................................................... 73 Navigation Template ............................................................................................................................................................. 74 3 Grid Template .......................................................................................................................................................................... 74 Split Template .......................................................................................................................................................................... 74 What We’ve Just Learned ......................................................................................................................................................... 75 Chapter 3: App Anatomy and Page Navigation ........................................... 76 Local and Web Contexts within the App Host .................................................................................................................. 77 Referencing Content from App Data: ms-appdata ..................................................................................................... 81 Sequential Async Operations: Chaining Promises ............................................................................................................ 84 Debug Output, Error Reports, and the Event Viewer ................................................................................................. 87 App Activation ............................................................................................................................................................................. 89 Branding Your App 101: The Splash Screen and Other Visuals............................................................................... 89 Activation Event Sequence .................................................................................................................................................. 92 Activation Code Paths ........................................................................................................................................................... 93 WinJS.Application Events ..................................................................................................................................................... 95 Extended Splash Screens ...................................................................................................................................................... 97 App Lifecycle Transition Events and Session State ........................................................................................................... 99 Suspend, Resume, and Terminate ...................................................................................................................................100 Basic Session State in Here My Am! ...............................................................................................................................104 Data from Services and WinJS.xhr .......................................................................................................................................106 Handling Network Connectivity (in Brief).....................................................................................................................109 Tips and Tricks for WinJS.xhr ............................................................................................................................................109 Page Controls and Navigation ..............................................................................................................................................111 WinJS Tools for Pages and Page Navigation ...............................................................................................................111 The Navigation App Template, PageControl Structure, and PageControlNavigator ....................................112 The Navigation Process and Navigation Styles ..........................................................................................................118 Optimizing Page Switching: Show-and-Hide ..............................................................................................................120 Completing the Promises Story ............................................................................................................................................120 What We’ve Just Learned .......................................................................................................................................................122 Chapter 4: Controls, Control Styling, and Data Binding ........................... 124 The Control Model for HTML, CSS, and JavaScript ........................................................................................................125 HTML Controls ...........................................................................................................................................................................126 4 WinJS stylesheets: ui-light.css, ui-dark.css, and win-* styles ...................................................................................129 Extensions to HTML Elements ..........................................................................................................................................130 WinJS Controls ...........................................................................................................................................................................130 WinJS Control Instantiation ...............................................................................................................................................132 Strict Processing and processAll Functions ..................................................................................................................133 Example: WinJS.UI.Rating Control ...................................................................................................................................134 Example: WinJS.UI.Tooltip Control..................................................................................................................................135 Working with Controls in Blend ...........................................................................................................................................137 Control Styling ...........................................................................................................................................................................139 Styling Gallery: HTML Controls ........................................................................................................................................141 Styling Gallery: WinJS Controls ........................................................................................................................................143 Some Tips and Tricks ...........................................................................................................................................................146 Custom Controls ........................................................................................................................................................................147 Custom Control Examples .................................................................................................................................................149 Custom Controls in Blend ..................................................................................................................................................151 Data Binding ...............................................................................................................................................................................154 Data Binding in WinJS .........................................................................................................................................................157 Additional Binding Features..............................................................................................................................................162 What We’ve Just Learned .......................................................................................................................................................165 Chapter 5: Collections and Collection Controls .......................................... 167 Collection Control Basics ........................................................................................................................................................168 Quickstart #1: The HTML FlipView Control Sample ..................................................................................................168 Quickstart #2a: The HTML ListView Essentials Sample .............................................................................................170 Quickstart #2b: The ListView Grouping Sample .........................................................................................................172 ListView in the Grid App Project Template ..................................................................................................................177 The Semantic Zoom Control .................................................................................................................................................181 FlipView Features and Styling ...............................................................................................................................................184 Data Sources ...............................................................................................................................................................................187 A FlipView Using the Pictures Library ............................................................................................................................187 Custom Data Sources ..........................................................................................................................................................189 5 How Templates Really Work..................................................................................................................................................191 Referring to Templates .......................................................................................................................................................191 Template Elements and Rendering.................................................................................................................................192 Template Functions (Part 1): The Basics ........................................................................................................................193 ListView Features and Styling ................................................................................................................................................195 When Is ListView the Wrong Choice? ............................................................................................................................195 Options, Selections, and Item Methods ........................................................................................................................197 Styling .......................................................................................................................................................................................200 Backdrops ................................................................................................................................................................................201 Layouts and Cell Spanning ................................................................................................................................................202 Optimizing ListView Performance .......................................................................................................................................208 Random Access .....................................................................................................................................................................209 Incremental Loading ............................................................................................................................................................210 Template Functions (Part 2): Promises, Promises! .....................................................................................................210 What We’ve Just Learned .......................................................................................................................................................216 Chapter 6: Layout............................................................................................ 218 Principles of WinRT app Layout ...........................................................................................................................................219 Quickstart: Pannable Sections and Snap Points ..............................................................................................................223 Laying Out the Hub .............................................................................................................................................................223 Laying Out the Sections......................................................................................................................................................225 Snap Points .............................................................................................................................................................................225 The Many Faces of Your Display ..........................................................................................................................................226 View States ..............................................................................................................................................................................227 Screen Size, Pixel Density, and Scaling ..........................................................................................................................234 Adaptive and Fixed Layouts for Display Size ...................................................................................................................238 Fixed Layouts and the ViewBox Control .......................................................................................................................239 Adaptive Layouts ..................................................................................................................................................................241 Using the CSS Grid ....................................................................................................................................................................243 Overflowing a Grid Cell ......................................................................................................................................................244 Centering Content Vertically ............................................................................................................................................245 6 Scaling Font Size ...................................................................................................................................................................246 Item Layout .................................................................................................................................................................................247 CSS 2D and 3D Transforms................................................................................................................................................247 Flexbox .....................................................................................................................................................................................248 Nested and Inline Grids ......................................................................................................................................................249 Fonts and Text Overflow ....................................................................................................................................................250 Multicolumn Elements and Regions ...............................................................................................................................251 What We’ve Just Learned .......................................................................................................................................................254 Chapter 7: Commanding UI ........................................................................... 256 Where to Place Commands ...................................................................................................................................................257 The App Bar ................................................................................................................................................................................261 App Bar Basics and Standard Commands ....................................................................................................................263 App Bar Styling ......................................................................................................................................................................272 Command Menus .................................................................................................................................................................274 Custom App Bars and Navigation Bars .........................................................................................................................276 Flyouts and Menus....................................................................................................................................................................277 WinJS.UI.Flyout Properties, Methods, and Events ......................................................................................................279 Flyout Examples ....................................................................................................................................................................280 Menus and Menu Commands ..........................................................................................................................................283 Message Dialogs ........................................................................................................................................................................288 Improving Error Handling in Here My Am! ......................................................................................................................289 What We’ve Just Learned .......................................................................................................................................................294 Chapter 8: State, Settings, Files, and Documents ....................................... 295 The Story of State ......................................................................................................................................................................296 Settings and State .................................................................................................................................................................298 App Data Locations ..............................................................................................................................................................299 AppData APIs (WinRT and WinJS) ...................................................................................................................................301 Using App Data APIs for State Management ..............................................................................................................310 Settings Pane and UI ................................................................................................................................................................316 Design Guidelines for Settings .........................................................................................................................................317 7 Populating Commands .......................................................................................................................................................320 Implementing Commands: Links and Settings Flyouts ............................................................................................321 User Data: Libraries, File Pickers, and File Queries .........................................................................................................326 Using the File Picker ............................................................................................................................................................327 Media Libraries ......................................................................................................................................................................336 Documents and Removable Storage..............................................................................................................................337 Rich Enumeration with File Queries................................................................................................................................338 Here My Am! Update ...............................................................................................................................................................344 What We’ve Just Learned .......................................................................................................................................................344 Chapter 9: Input and Sensors ........................................................................ 346 Touch, Mouse, and Stylus Input ...........................................................................................................................................347 The Touch Language, Its Translations, and Mouse/Keyboard Equivalents .......................................................348 What Input Capabilities Are Present? ............................................................................................................................355 Unified Pointer Events .........................................................................................................................................................357 Gesture Events .......................................................................................................................................................................360 The Gesture Recognizer .....................................................................................................................................................369 Keyboard Input and the Soft Keyboard .............................................................................................................................371 Soft Keyboard Appearance and Configuration ..........................................................................................................371 Adjusting Layout for the Soft Keyboard .......................................................................................................................374 Standard Keystrokes ............................................................................................................................................................376 Inking ............................................................................................................................................................................................377 Geolocation .................................................................................................................................................................................380 Sensors ..........................................................................................................................................................................................383 What We’ve Just Learned .......................................................................................................................................................386 Chapter 10: Media .......................................................................................... 387 Creating Media Elements .......................................................................................................................................................388 Graphics Elements: Img, Svg, and Canvas (and a Little CSS) ......................................................................................390 Additional Characteristics of Graphics Elements ........................................................................................................393 Some Tips and Tricks ...........................................................................................................................................................394 Video Playback and Deferred Loading ..............................................................................................................................398 8 Disabling Screen Savers and the Lock Screen During Playback ............................................................................400 Video Element Extension APIs ..........................................................................................................................................401 Applying a Video Effect ......................................................................................................................................................402 Browsing Media Servers .....................................................................................................................................................403 Audio Playback and Mixing ...................................................................................................................................................403 Audio Element Extension APIs..........................................................................................................................................405 Playback Manager and Background Audio .................................................................................................................406 Playing Sequential Audio ...................................................................................................................................................410 Playlists .........................................................................................................................................................................................411 Loading and Manipulating Media .......................................................................................................................................414 Media File Metadata ............................................................................................................................................................414 Image Manipulation and Encoding ................................................................................................................................423 Manipulating Audio and Video .......................................................................................................................................429 Media Capture ...........................................................................................................................................................................433 Flexible Capture with the MediaCapture Object ........................................................................................................435 Selecting a Media Capture Device ..................................................................................................................................439 Streaming Media and PlayTo ................................................................................................................................................440 Streaming from a Server and Digital Rights Management (DRM) .......................................................................441 Streaming from App to Network ....................................................................................................................................442 PlayTo .......................................................................................................................................................................................443 What We Have Learned ..........................................................................................................................................................446 Chapter 11: Purposeful Animations ............................................................. 448 Systemwide Enabling and Disabling of Animations ......................................................................................................450 The WinJS Animations Library ..............................................................................................................................................451 Animations in Action ...........................................................................................................................................................454 CSS Animations and Transitions ...........................................................................................................................................458 The Independent Animations Sample ...........................................................................................................................463 Rolling Your Own: Tips and Tricks .......................................................................................................................................464 What We’ve Just Learned .......................................................................................................................................................469 Chapter 12: Contracts ..................................................................................... 470 9 Share ..............................................................................................................................................................................................472 Source Apps............................................................................................................................................................................474 Target Apps ............................................................................................................................................................................480 The Clipboard ........................................................................................................................................................................491 Search............................................................................................................................................................................................493 Search in the App Manifest and the Search Item Template ...................................................................................496 Basic Search and Search Activation ................................................................................................................................496 Providing Query Suggestions ...........................................................................................................................................499 Providing Result Suggestions ...........................................................................................................................................503 Type to Search .......................................................................................................................................................................504 Launching Apps: File Type and URI Scheme Associations ...........................................................................................504 File Activation ........................................................................................................................................................................506 Protocol Activation ..............................................................................................................................................................508 File Picker Providers .................................................................................................................................................................509 Manifest Declarations ..........................................................................................................................................................510 Activation of a File Picker Provider .................................................................................................................................511 Cached File Updater .................................................................................................................................................................518 Updating a Local File: UI ....................................................................................................................................................521 Updating a Remote File: UI ...............................................................................................................................................522 Update Events ........................................................................................................................................................................523 Contacts .......................................................................................................................................................................................527 Using the Contact Picker ....................................................................................................................................................529 Contact Picker Providers ....................................................................................................................................................531 What We’ve Just Learned .......................................................................................................................................................534 About the Author ........................................................................................... 536 Survey ............................................................................................................... 537 10 Introduction Welcome, my friends, to Windows 8! 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