Future Decoded - VisualStudio and Xamarin talk

Presented by @slodge at FutureDecoded London 12 Nov 2014

An intro to Xamarin inside Visual Studio

Sample code is at https://github.com/slodge/future-decoded-demo

Transcript

1. 12.11.14 ExCeL London
2. @slodge developer cirrious
3. @slodge developer cirrious
4. @slodge developer cirrious
7. @slodge developer cirrious
8. What’s it like developing in VS using Xamarin?
9. What are Xamarin.iOS & Xamarin.Android? Microsoft .Net Win32 Mono Unix Xamarin.Android Android Xamarin.iOS iOS C++ COM C++ ObjC Java
10. What are Xamarin.Android & Xamarin.iOS? Native Android and iOS apps written in C# • A .Net runtime on Android and iOS • .Net class libraries (e.g. System.IO.File) • .Net “Bindings” for Java and ObjectiveC objects • Tools (standalone & integrated into VS)
11. Button button = new Button(this); button.setText("Brian Cox"); button.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { label.setText(editText.getText()); } }); layout.addView(button); var button = new Button(this); button.Text = “Brian Cox"; button.Click += (sender, args) => { label.Text = editText.Text; }; layout.AddView(button); C#
12. Button button = new Button(this); button.setText("Brian Cox"); button.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { label.setText(editText.getText()); } }); layout.addView(button); var button = new Button(this); button.Text = “Brian Cox"; button.Click += (sender, args) => { label.Text = editText.Text; }; layout.AddView(button); C# Use common C# CamelCase conventions
13. Button button = new Button(this); button.setText("Brian Cox"); button.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { label.setText(editText.getText()); } }); layout.addView(button); var button = new Button(this); button.Text = “Brian Cox"; button.Click += (sender, args) => { label.Text = editText.Text; }; layout.AddView(button); C# Use properties, not get/set method pairs
14. Button button = new Button(this); button.setText("Brian Cox"); button.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { label.setText(editText.getText()); } }); layout.addView(button); var button = new Button(this); button.Text = “Brian Cox"; button.Click += (sender, args) => { label.Text = editText.Text; }; layout.AddView(button); C# Use C# events instead of listener interfaces
15. var button = new UIButton(new RectangleF(10, 150, 300, 40)); button.SetTitle(“Brian Cox“, UIControlState.Normal); button.TouchUpInside += (sender, args) => { // the action to take }; View.AddSubView(button); C# UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect]; button.frame = CGRectMake(80.0, 210.0, 160.0, 40.0); [button addTarget:self action:@selector(aMethod:) forControlEvents:UIControlEventTouchUpInside]; [button setTitle:@“Brian Cox" forState:UIControlStateNormal]; [view addSubview:button];
16. var button = new UIButton(new RectangleF(10, 150, 300, 40)); button.SetTitle(“Brian Cox“, UIControlState.Normal); button.TouchUpInside += (sender, args) => { // the action to take }; View.AddSubView(button); C# UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect]; button.frame = CGRectMake(80.0, 210.0, 160.0, 40.0); [button addTarget:self action:@selector(aMethod:) forControlEvents:UIControlEventTouchUpInside]; [button setTitle:@“Brian Cox" forState:UIControlStateNormal]; [view addSubview:button]; Use common C# CamelCase conventions Use properties, not get/set method pairs Use C# events instead of delegate protocols
17. var button = new UIButton(new RectangleF(10, 150, 300, 40)); button.SetTitle(“Brian Cox“, UIControlState.Normal); button.TouchUpInside += (sender, args) => { // the action to take }; View.AddSubView(button); C# UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect]; button.frame = CGRectMake(80.0, 210.0, 160.0, 40.0); [button addTarget:self action:@selector(aMethod:) forControlEvents:UIControlEventTouchUpInside]; [button setTitle:@“Brian Cox" forState:UIControlStateNormal]; [view addSubview:button]; Use enum values for constants
18. Search for…. Enter search term Go My Booky Wook 1 My Booky Wook 2 …. A Google Books app www.googleapis.com/books/v1/volumes?q=...
19. What does Xamarin give VS?
20. What does Xamarin give VS? • A .Net RunTime on Android • Android “New Project” templates • C# bindings to Android Java Class Libraries • … with C# semantics • Linq, async, .Net, … • Tools for Compilation, Deployment, Debugging and Publishing • Nuget & components • A fast Android emulator • Excellent docs • An axml designer • Prompt platform updates (phone, tablet, tv, watch…)
21. What does Xamarin give VS? • A .Net RunTime on Android • Android “New Project” templates • C# bindings to Android Java Class Libraries • … with C# semantics • Linq, async, .Net, … • Tools for Compilation, Deployment, Debugging and Publishing • Nuget & components • A fast Android emulator • Excellent docs • An axml designer • Prompt platform updates (phone, tablet, tv, watch…) • A .Net RunTime on iOS • iPhone and iPad “New Project” templates • C# bindings to ObjectiveC Class Libraries • … with C# semantics • Linq, async, .Net, … • Tools for Compilation, Deployment, Debugging and Publishing • Nuget & components • Excellent docs • A storyboard designer • Prompt platform updates (iOS x, 64-bit, AppleWatch?)
22. What does Xamarin give VS? • A .Net RunTime on Android • Android “New Project” templates • C# bindings to Android Java Class Libraries • … with C# semantics • Linq, async, .Net, … • Tools for Compilation, Deployment, Debugging and Publishing • Nuget & components • A fast Android emulator • Excellent docs • An axml designer • Prompt platform updates (phone, tablet, tv, watch…) • A .Net RunTime on iOS • iPhone and iPad “New Project” templates • C# bindings to ObjectiveC Class Libraries • … with C# semantics • Linq, async, .Net, … • Tools for Compilation, Deployment, Debugging and Publishing • Nuget & components • Excellent docs • A storyboard designer • Prompt platform updates (iOS x, 64-bit, AppleWatch?) • PCL support • F# support – first class! • Libraries (Xamarin.Mobile, Xamarin.Social, Xamarin Forms) • Profilers • A cracking installer • Sketches • Excellent docs + Xamarin University • Xamarin Test Cloud • Xamarin Insights • A future decoded? • The aqueducts?
23. Perfection would be boring… • It’s not free • For iOS development a Mac is required • Swear box occasionally required • VS tools functionality lags behind the XS tools – also, currently (IMO) not as fast or robust • Sometimes you have to drop down to XS, to the Mac and to the Google and Apple tools • Sometimes you do need to pull in third party native libraries – this is possible, tools are available to help, but can sometimes get hairy • You will need to buy “some” phones and tablets • You do need platform knowledge… • You do need platform commitment…
24. Some UK Xamarin Customer Successes
25. Preferred text layout (no bullets) www.bbits.co.uk info@bbits.co.uk +44 203 126 4885
26. Preferred text layout (no bullets) www.bbits.co.uk info@bbits.co.uk +44 203 126 4885
27. Preferred text layout (no bullets) www.bbits.co.uk info@bbits.co.uk +44 203 126 4885
28. Preferred text layout (no bullets) www.bbits.co.uk info@bbits.co.uk +44 203 126 4885 Video is on: http://vimeo.com/64097175 Video is on: http://vimeo.com/64097175
33. For video, contact: http://microsec.co.uk
35. http://www.sequence.co.uk/case-studies/british-irish-lions
37. For Video: https://evolve.xamarin.com/awards#honeywell
38. @slodge developer cirrious
39. What’s it like developing in VS using Xamarin?
40. @slodge developer cirrious
41. Community Groups http://windowsapps.london/ Nov 26th – Preparing for Windows 10 Dec 17th – From Windows Phone to Xamarin http://www.meetup.com/London-Mobile-Dev Nov 11th – Cross Platform Development with MvvmCross http://www.meetup.com/ Glasgow-Mobile-NET-Developers/ http://www.eventbrite.co.uk/o/ waw-wag-1935092487
42. Satya Nadella CEO Microsoft Sir Bob Geldof Entrepreneur, philanthropist and political activist Sara Murray OBE Entrepreneur and businesswoman Jeremy Paxman Author, journalist and former Newsnight presenter Sir Martin Sorrell CEO of WPP Group Dame Stella Rimington Author and former Director General of MI5 12.11.14 at ExCeL London More information and ticket registration at www.futuredecoded.com