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![Strong Types
• Objective-C
• Arrays are weakly typed:
• NSArray return values.
• MonoTouch has strong types
• UIView[] Subviews { get; }
• vs
• NSArray *subviews;
• Intellisense - explore the API...](https://image.slidesharecdn.com/monotouchkeynote-100512143335-phpapp01/75/C-on-the-iPhone-with-MonoTouch-Glasgow-35-2048.jpg)
Uploaded byChris Hardy
C# on the iPhone with MonoTouch Glasgow
This document discusses using C# and MonoTouch to develop apps for the iPhone and iPad. It covers how MonoTouch works, why you would use it, and features like bindings to Apple's APIs, garbage collection, linking assemblies, debugging support, and integration with Xcode and Interface Builder. MonoTouch allows developing iPhone/iPad apps using C# instead of Objective-C. The document also mentions MonoTouch versions released, support for the iPad SDK on launch, and plans for a book on professional iPhone programming with MonoTouch and C#. It concludes with an invitation to ask questions.
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C# on the iPhone with MonoTouch Glasgow
- 2. C# on theiPhone with MonoTouch Chris Hardy follow on Twitter - @chrisntr
- 4.
- 6. iPhone apps builtwith MonoTouch
- 7. iPad apps builtwith MonoTouch
- 9.
- 10. Covering... • How MonoTouchworks...
- 11. Covering... • How MonoTouchworks... • Why would you use it?
- 12. Covering... • How MonoTouchworks... • Why would you use it? • Section 3.3.1 ...
- 13. Covering... • How MonoTouchworks... • Why would you use it? • Section 3.3.1 ... • Demos
- 14.
- 15. Objective C andXcode
- 16. Learn to readObjective-C
- 17. Learn to readObjective-C
- 18. Learn to readObjective-C
- 19. Learn to readObjective-C • All Apple documentation is in Obj-C
- 20. Learn to readObjective-C • All Apple documentation is in Obj-C • Most examples are in Obj-C
- 21. Learn to readObjective-C • All Apple documentation is in Obj-C • Most examples are in Obj-C • It’s not too hard to understand
- 22. Learn to readObjective-C • All Apple documentation is in Obj-C • Most examples are in Obj-C • It’s not too hard to understand • It might even be fun...
- 23.
- 24.
- 25.
- 26.
- 27. What is Mono? The.Net Framework
- 28. What is Mono? The.Net Framework
- 29. Mono’s JIT Engine Memory Mono CIL
- 30. Apple No No... •Contractual Requirements • No interpreted code • No shared libraries • Kernel Limitations • iPhone OS 2.0+ disables JIT
- 31. Mono’s AOT Engine Native Code Mono AOT Mono Runtime CIL ARM
- 32. Monotouch Features • mtouch •MonoDevelop iPhone Add-In • CocoaTouch.NET • Full static AOT compiler • Support for all your existing code • Reflection • Generics • LINQ • Anonymous Methods • Lambda’s etc...
- 33.
- 34. The Bindings • MonoTouchnamespace • MonoTouch.Foo namespace • Maps to CocoaTouch’s Foo Framework • 1:1 Mapping of classes. • MonoTouch.UIKit.UILabel • CocoaTouch’s UIKit framework, UILabel class
- 35. Strong Types • Objective-C • Arrays are weakly typed: • NSArray return values. • MonoTouch has strong types • UIView[] Subviews { get; } • vs • NSArray *subviews; • Intellisense - explore the API...
- 36. Garbage Collection • Automatic: • Mono’s GC will collect objects on demand • Deterministic: • Use when you need control. • Every object in MonoTouch implements IDisposable using (var image = UIImage.FromFile(“foo.png”)){ surface.DrawImage(image, 20, 20); }
- 37.
- 38. What about AppSize? • 20 MB (compressed) limit on 3G/Edge downloads • .Net BCL and other libraries are huge • Mono Linker to the rescue!
- 39.
- 40. Linker Options • NoLink • Link SDK Only • Full Link
- 41. Pipeline • Interface BuilderGUI Designer • Exact same tool used by Xcode • Support for existing Xcode interfaces • MonoDevelop IDE
- 42. Integration • Tight integrationbetween MD and IB • IB produces XIBs with MD parses • Automatic class generation in MD • Generates partial classes for all types, outlets and actions defined in Interface Builder
- 43. Outlets • Instance Variables •Can be strong or loosely typed • MD will strong type
- 44. Actions • Objects emitbroadcast messages to receivers • You can do this C# • MonoDevelop takes care of the details for you • Creates partial methods for you extend
- 45. MonoTouch Events • SupportsObjective-C pattern: webView.Delegate = new MyWebViewDelegate(); • C# style events as well: webView.PageLoaded += delegate { HideSpinningWheel(); }
- 46. Debugging • Console.WriteLine(“Debugging insideof MonoTouch”); • printf(“I made it to this line!n”)
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- 48.
- 49. Well... • MonoTouch 1.0on 15th September 2009
- 50. Well... • MonoTouch 1.0on 15th September 2009 • MonoTouch 1.1 on 2nd October 2009
- 51. Well... • MonoTouch 1.0on 15th September 2009 • MonoTouch 1.1 on 2nd October 2009 • MonoTouch 1.2 (Beta) released on 28th October 2009... With Debugging support
- 52. Well... • MonoTouch 1.0on 15th September 2009 • MonoTouch 1.1 on 2nd October 2009 • MonoTouch 1.2 (Beta) released on 28th October 2009... With Debugging support • Currently on MonoTouch 2.0.2
- 53. Debugger • MonoTouch debuggerleverages Mono’s new Soft-Debugger • Supports the Simulator • Supports the Device... • even over WiFi
- 54. Debugger Features • Breakpoints •Catchpoints • Inspection • Watches • Immediate / Expression Evaluator • Call Stack • Stepping
- 55. Caveats • Debug binarieson devices are very large • Cannot debug Main or FinishedLaunching on device • Consumes more memory runtime • Performance hit
- 56. Getting started • GetiPhone SDK from Apple • Get Mono from Novell • Get MonoTouch (evaluation version is free) • Get MonoDevelop • Register with Apple iPhone Developer Program and purchase MonoTouch for putting apps on device and AppStore.
- 57.
- 58. iPad • But youwant to develop for the iPad...
- 59. iPad • But youwant to develop for the iPad... • 24 Hours after the SDK was released...
- 60. iPad • But youwant to develop for the iPad... • 24 Hours after the SDK was released... • MonoTouch support for iPad
- 61. iPad • But youwant to develop for the iPad... • 24 Hours after the SDK was released... • MonoTouch support for iPad • Fully supported with MonoTouch 2.0
- 62. Apple’s new TOS • 3.3.1 — Applications may only use Documented APIs in the manner prescribed by Apple and must not use or call any private APIs. Applications must be originally written in Objective-C, C, C++, or JavaScript as executed by the iPhone OS WebKit engine, and only code written in C, C++, and Objective-C may compile and directly link against the Documented APIs (e.g., Applications that link to Documented APIs through an intermediary translation or compatibility layer or tool are prohibited).
- 63. Professional iPhone Programmingwith MonoTouch and .NET/ C# Wallace B. McClure Rory Blyth Martin Bowling Craig Dunn and me... Chris Hardy Out in Summer
- 64.
- 65. Q +A twitter.com/chrisntr chrisntr@gmail.com 10% offMonoTouch use DDDSCOT on MonoTouch.net
Editor's Notes
- #2 Good afternoon, I’m going to talk a little bit about C# on the iPhone with Monotouch. I’m Chris Hardy and you go follow me on twitter @ chrisntr.
- #3 Good afternoon, I’m going to talk a little bit about C# on the iPhone with Monotouch. I’m Chris Hardy and you go follow me on twitter @ chrisntr.
- #4 I work for a company called Great Fridays and we’re mainly a web design agency working for people such as Ubisoft, Peter Gabriel and Emma Watson
- #5 I work for a company called Great Fridays and we’re mainly a web design agency working for people such as Ubisoft, Peter Gabriel and Emma Watson
- #6 I work for a company called Great Fridays and we’re mainly a web design agency working for people such as Ubisoft, Peter Gabriel and Emma Watson
- #7 I work for a company called Great Fridays and we’re mainly a web design agency working for people such as Ubisoft, Peter Gabriel and Emma Watson
- #10 This session I will be covering and hopefully answering some of your question on... What is Monotouch... How does it work... Why would you use it... and I’ll also show a demo or two on using MonoTouch
- #11 This session I will be covering and hopefully answering some of your question on... What is Monotouch... How does it work... Why would you use it... and I’ll also show a demo or two on using MonoTouch
- #12 This session I will be covering and hopefully answering some of your question on... What is Monotouch... How does it work... Why would you use it... and I’ll also show a demo or two on using MonoTouch
- #13 This session I will be covering and hopefully answering some of your question on... What is Monotouch... How does it work... Why would you use it... and I’ll also show a demo or two on using MonoTouch
- #14 This session I will be covering and hopefully answering some of your question on... What is Monotouch... How does it work... Why would you use it... and I’ll also show a demo or two on using MonoTouch
- #15 In the summer I thought I&#x2019;d have a go at iPhone programming, it&#x2019;s fun and it&#x2019;s enjoyable and it also involves... </next slide>
- #16 using Objective C and Xcode... this lead me to learn objective-c... which was hard coming from a PHP/Web background. Constant errors and manually hacking at SOAP requests was not much fun... XCode on the other hand was really nice although there is no concept of a project folder...
- #23 So, what is MonoTouch? First of all we should ask a different question.
- #28 The CIL (Common Intermediate Language) / Assembley is sent to Mono at Runtime and executed directly in memory...
- #29 The CIL (Common Intermediate Language) / Assembley is sent to Mono at Runtime and executed directly in memory...