Windows 8Hot or Not

Piotr Włodek

Agenda

MetroCharm

sContract

s WinRT

App Execution Environment

Motion Summary

Metro UI

Metro Design

Metro Design

• Typography• Motion• Content not Chrome

Photoshop METRO’ified

• 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

Notification

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 SupportC#

XAML 5

apps

C++ Direct

X 2 apps

JS HTML

22 apps

• 29 apps in total• In Dev Preview: –75% JS, –17% C#, –8% C++

Windows Runtime

Is .NET dead ?

.NET Framework 4.5

• Preinstalled in Windows 8• No support for Windows XP

WinRT vs Silverlight

SL5

WinRT4396

1582

607

• Type comparison

WinRT vs Silverlight

SL5WinRT

10375

651

• Member comparison

4222

.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

App.exe WinRTAPIs OS

Direct API calls

BrokerBrokered API calls

Your App

App Container + Signed & verified code

Process state transition

Running App

Suspended App

Suspending

Resuming

Terminated

App

Low resources

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• ObservableCollectionxmlns:views=”using:My.Custom.Views”

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