Mono for Android... for Google Devs
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The document summarizes a presentation given by Craig Dunn on Mono for Android at a Google Developer Group meeting. It discusses how Mono for Android allows developers to build Android applications using C# in MonoDevelop or Visual Studio. It also covers how code can be reused across Android, iOS, and Windows platforms. The presentation included demos of building a simple Android app in C# and examples of cross-platform apps developed with Mono.
![Linking
Mono compiler strips out unused classes/libraries
• Mobile devices – size matters!
• Trap for young players: it might strip out stuff you want to
keep!
• Classes/methods/properties used via Reflection
• Classes/methods/properties used in serialization
operations
By default disabled in DEBUG, so stuff will work there and
mysteriously break in RELEASE
[Preserve(AllMembers = true)]](https://image.slidesharecdn.com/googledevgroup-eastbays-130115105404-phpapp01/85/Mono-for-Android-for-Google-Devs-14-320.jpg)
Mono for Android... for Google Devs
- 1. Google Developer Group January 14th, 2013
- 2. Mono for Android... for Google Developers Craig Dunn Developer Evangelist [email protected] @conceptdev Xamarin's Mono for Android tools let you build applications for Android using C#. You can write code on a Mac with MonoDevelop, or for Windows choose between MonoDevelop and Visual Studio. What's in it for Java developers? C# is an easy leap, and you can then re-use your code on iOS and Windows devices. We'll look at the tooling, building an Android app with C# and the principles of sharing code with iPhones, iPads and Windows.
- 3. Headline Your own sub headline OVERVIEW
- 4. What is Mono? Open source implementation of the .NET Common Language Runtime (CLR) and the C# language • Linux, MacOS X, Solaris, BSD, Wii, PS3, PS Vita! • Started in 2001 as Ximian, purchased by Novell in 2003, released in 2004 • 2009: MonoTouch created (released 2010) • 2010: Mono for Android created (released 2011) • 2011: Novell purchased by Attachmate ($2.2b) - Xamarin is born... http://www.mono-project.com/ http://github.com/mono http://xamarin.com/
- 5. What is Mono for Android? Mono C# & .NET + Android API bindings + UI designer + Visual Studio plug-in (or MonoDevelop) = Android application development http://xamarin.com/android Released April 2011
- 6. What is Mono for Android? • Runs natively - Fast enough for games, eg. flight simulation • Use platform’s UI controls • Access all Android features • Incorporate existing Java
- 7. What is Mono for Android? • LINQ support • .NET XML APIs • Event handling & delegates • Parallel LINQ
- 8. Rich IDE Support • Point and Click UI generation • Code completion to explore Android APIs • Source control (Subversion & Git) • Use Visual Studio or our own cross-platform IDE
- 9. Debugging on Emulator & Devices • Debug with Android simulator and on devices • Set breakpoints, watches, single-step through code, hover over variables • Change object values real-time
- 10. Headline Your own sub headline DEMO
- 11. Who moved my cheese? • /res/ & R.java • findViewById • Android.xml • Anonymous classes • Naming (InitialCaps)!
- 12. Headline Your own sub headline Tech stuff
- 13. Runtime • Mono runtime is bundled with each app • For faster debugging, a Shared Runtime can be installed • Apps deployed to users always include the runtime, but...
- 14. Linking Mono compiler strips out unused classes/libraries • Mobile devices – size matters! • Trap for young players: it might strip out stuff you want to keep! • Classes/methods/properties used via Reflection • Classes/methods/properties used in serialization operations By default disabled in DEBUG, so stuff will work there and mysteriously break in RELEASE [Preserve(AllMembers = true)]
- 15. Binding • Xamarin releases new versions of Mono for Android that correspond to each API level and release from Google. • Tools are provided to help you ‘bind’ any existing Java lib (.jar) to incorporate into your Mono app
- 16. Xamarin.Mobile APIs xamarin.com/mobile • Camera • Contacts • Geolocation • Compass/Accelerometer • Notifications For Android, iOS, Win Phone & Win 8/RT
- 17. Cross-Platform Development • Share code • Shared data with SQLite • Shared web services with WebClient/ HttpClient • Conditional compilation (if required) Write your UI for each platform
- 18. Cross-Platform Development iCircuit • Code re-use http://praeclarum.org/
- 19. Headline Your own sub headline DEMO
- 20. Cross-Platform Development MWC 2012 sample
- 22. Cross-Platform Development Other Cross-Platform Libraries • MonoCross code.google.com/p/monocross Cross-platform UI framework • Vernacular github.com/rdio/vernacular Cross-platform localization framework • MonoGame monogame.net Cross-platform XNA game framework, from Xbox to Windows RT (as well as iOS and Android)
- 23. Customers Complete access to iOS & Android UI and APIs Native binary, not interpreted, for responsive, fluid performance under the most demanding app scenarios Infinite Flight TouchDraw Rdio iOS, Mac & Android iOS, Android, WP (Samsung only)
- 24. Headline Your own sub headline Questions?
- 25. Headline Your own sub headline Thank you! Learn more at our conference xamarin.com/evolve Austin, Texas ~ April 14-17