Development Application for Windows 8 by Eugene Kiriyan
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Development Application for Windows 8 by Eugene Kiriyan
- 1. Windows 8 Metro apps © 2012, Eugene Kirian
- 2. Windows 8
- 3. Agenda 1. Introduction to Windows 8 Metro 2. Practice 3. Windows Store 4. Questions
- 4. Prerequisites • Windows 8 • Visual Studio 2012 • Knowledge of C#/VB.Net/C++/JavaScript • Windows LiveID
- 5. Languages and Technologies The choice • JavaScript + HTML 5 • C#/VB.Net + XAML • C++ + XAML JavaScript C#/VB.Net • C++ + DirectX HTML XAML C++ C++ XAML DirectX
- 6. Sandbox
- 7. App capability declarations Metro style apps that need programmatic access to user resources such as the Pictures library or connected devices such as a webcam, must declare the appropriate capability. An app requests access by declaring capabilities in its package manifest.
- 8. App capability declarations Capabilities • Music library • Pictures library • Videos library • Removable storage (USB, External HDD) • Microphone • Webcam • Location (GPS) • Proximity (Locate nearby devices) • Internet and public networks • Home and work networks • Enterprise authentication • Shared User Certificates • Documents library (Require to have at least one app supported file extension)
- 9. App contracts and extensions Metro style apps use contracts and extensions to declare the interactions that they support with other apps. These apps must include required declarations in the package manifest and call required Windows Runtime APIs to communicate with Windows and other contract participants. Contracts - an agreement between one or more apps. Extension - an agreement between an app and Windows.
- 10. App contracts and extensions Contracts & Extensions • Account picture provider (extension) • App to App Picking contract • AutoPlay (extension) • Background tasks (extension) • Cached file updater contract • Camera settings (extension) • Contact picker (extension) • File activation (extension) • Game Explorer (extension) • Play To contract • Print task settings (extension) • Protocol activation (extension) • Search contract • Settings contract • Share contract • SSL/certificates (extension)
- 11. Application lifecycle • App deployment • App launch/activation • App suspend/change visibility/resume • App close/crash • App removal
- 13. App packages and deployment Package is container - Open Packing Conventions (OPC) standard. OPC defines a structured means to store data and resources for the app using a standard ZIP file. • Package manifest • Content Installation to %ProgramFiles%WindowsApps
- 14. File access and permissions You can get access to: • Application install directory • Application data locations • User’s Downloads folder • Additional locations (Documents, Music, Pictures, Videos libraries, removable devices, etc…)
- 16. Windows Store • Over 200 countries and over 100 languages to sell the app • Developer account ISN’T available for Ukraine
- 17. For those, who can… • 70% payoff when net sales is less than $25,000 • 80% payoff, after that • Minimum app price is $1.49
- 18. Windows Store Features • Buy and download • Time-limited trial • Feature-limited trial • In-app purchases • Advertising (Windows Advertising) • Third-party transactions
- 19. Questions?