Windows 8 Hot or Not

Windows 8Hot or Not Piotr Włodek

AgendaMetro Charms Contracts WinRT App ExecutionMotion Summary Environment

Metro UI

Metro Design

Metro Design• Typography• Motion• Content not Chrome

Photoshop METRO’ified

Notification• Tile notification – Square or wide – Badge (number or glypth)• Toast notification – Standard toast, 7 sec (e-mail, IM, social media) – Long duration toast, 30 sec (person waiting)• Push notification – Windows Push Notification Services

WIN 8 LOOK’N’FEEL

Charms• Search• Share• Start• Devices• Settings

Contracts• Web of Applications –Sharing Contract –Picker Contract –Search Contract –More!

What is Windows Runtime ?• OO API for writing Metro style applications• Written in native C++• Tuned for performance• Supports type reflection through metadata• Supports many languages though projections• Part of Windows, build each time OS is compiled

Language Support• 29 apps in total• In Dev Preview: C# XAML 5 apps – 75% JS, C++ DirectX 2 – 17% C#, apps – 8% C++ JS HTML 22 apps

Windows Runtime

Is .NET dead ?

.NET Framework 4.5• Preinstalled in Windows 8• No support for Windows XP

WinRT vs Silverlight• Type comparison 1582 WinRT 4396 SL5 607

WinRT vs Silverlight• Member 4222 comparison WinRT SL5 10375 651

.NET Metro Profile• Subset of Client Profile• No Remoting• No System.Data• No System.Web• No server side WCF• No private reflection, no Emit• Some API only in async version

DEMO – METRO IN C++

What is included in WinRT ?

Windows::UI• Comparable set to Silverlight• Lots of new controls: – WebView – MediaElement – MediaPlayer – GridView – FlipView – ApplicationBar

Windows::UI:Input• Gone – Mouse events – Touch events – Stylus events• Still There – Keyboard events – Manipulation events• New – Pointer events – Tap, DoubleTab, RightTap

Windows::UI::Media::Animations::Transition• Transitions for UIElement, Panel, ContentControl, and ItemsControl – Entrance Transition – Reposition Transition – Reorder Transition – AddDelete Transitions – Content Transitions

Windows::Storage::Pickers• 2 types of pickers: – File Picker – Folder Picker• Your app can show its content in either of these pickers

DEMO – METRO IN C#

Custom WinRT objects• Share objects across all languages• Languages – C++/CX : speed – C#/VB : Ease of use• Restrictions apply – Sealed classes – Exposed through an interface – Public API can only expose WinRT objects

DEMO – WINRT OBJECT IN C#

Application Execution Environment Your App Direct API calls WinRT App.exe APIs OS Brokered Broker API callsApp Container +Signed & verified code

Process state transition Running Suspending Suspended App Resuming App Terminated App

What is not supported ? • No { DynamicResource }• Poor WritableBitmap• Poor data binding• No default implementation for IObservableVector<T>• 2 manifestations of INPC• No overlapping windows (no MessageBox)

Common pitfals • Code behind namespaces• XAML namespaces• DP Custom controls and styles•xmlns:views=”using:My.Custom.Views”• ObservableCollection

Getting Windows 8 Dev Prev• Windows 8 Developer Preview with developer tools English, 64-bit (x64) – 4.8 GB – DVD dual layer or pendrive 8GB – VS 2011 Express – Blend 5 Preview (Works only with HTML5/CSS)• Windows 8 Developer Preview English, 64-bit• Windows 8 Developer Preview English, 32-bit• Visual Studio 2011 Ultimate Dev Prev

Reference• MSDN Metro Guide: – http://msdn.microsoft.com/en-us/windows/apps• Building Windows 8 Blog: – http://blogs.msdn.com/b/b8/• BUILD Videos: – http://www.buildwindows.com/• WinRT Transitions – http://bit.ly/vZU4fd• WinRT vs SL5 comparison – http://bit.ly/spEtNE

Piotr Włodek  mail: piotr.wlodek@gmail.com  blog: http://pwlodek.blogspot.com  twitter: @pwlodek

Windows 8 Hot or Not

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