This session talking about XAML for Metro style application implement. Focus on XAML for C/C++/C#/VB on Metro style application development.
Consistent with WPF and silverlight
New in Windows 8 Metro
1. New look and support for touch
2. Deployment by Windows Store
3. Tile –> splash screen to application
New XAML UI Control
1. Build in “Grouping”
2. Windows 8 look and feel and its “selection model”
3. Media player on Metro Style
4. Grid view and Flip view
5. Application Bar: Swipe from bottom/top to display
6. Manipulation and gestures: It could handle rotation on Button_Clicp event.
Metro Style App Concept
1. Diversity of display and resolution
2. Layout changed
1. Snapped(small one on split), Filled (big one on split) and Full Screen
2. It could be tested on simulator on VS2011 CTP.
Metro style app lifetime
1. Background apps are “Suspended”
1. App notified.
2. App will terminated when memory is low
1. App will not notified.
3. Event:
1. Application.Current.Suspending –> Save state when suspend
2. Application.Current.Resuming –> Restore state when resume
APP-116T - Prepare your apps for Windows 8 and beyond
This is talking about application compatibility on Windows 8.
Windows 8 is compatible with apps that run on Windows 7
OS version increasement
1. Application should not set upper bound for version handle
2. Windows 8 version is 6.2
DWM (Desktop Windows Manager) always ON
1. If application try to turn off it, it will failed silently.
2. Color depth must on 32-bit (for DWM limitation) but lower could be simulated
Startuo application changed
1. Apps on “Start” should goes to “task scheduler” or “automatic maintance”
.NET 3.5 demanded
1. Default is .NET 4.5 it could enable if user install .NET 3.5 application.
Use Windows Resource Widely
1. Use RegExpandSZ for path query
2. New error code add one
1. Some SUCCESSED might goes to FAILED.
Manifest your executable
1. Need add DPIAWARE for your application.
2. Application compatibility <compatibility xmln..>
1. Starting on Win7, if no this tag **treat it as Vista application**.
3. Metro Style Application should managed it manifest
1. <OSMinVersion><OSMaxVersionTested> to manage your metro app.
1. 70 times download, 10 times revenue and 10% conversion.
In-App Offer
1. 72% revenue comes from app which present “In-App offers”
2. 48% comes from “In-App offers”
Flxibility option for this.
1. Use your existing commerce
1. maintain relationship, subscription and consumable phuchases.
2. Ad supporteds
1. Choice of ad controls
3. One time purchase
1. Time limited trail and features differentiated trails.
4. Purchase over time
1. Persisent purchase and Expiring purchase.
Implement basic
1. Check License
1. It could use simulate since store still no open
2. Get latest listing data
3. Prompt for purchase
PLAT-775T/PLAT-776T** - Your Metro style app, video and audio, Part 1/Part 2**
Using media API could easy to build up tailored user experience application with little domain knowledge.
HTML 5 standard
1. DXVA full support
2. You can creat rich media by CSS, JS and DOM.
Windows 8 enhancement
1. 3D video (Stereo 3D)
1. _S3D still not work on CTP version_
2. Audio/Video effect and extensibility
3. Zoom/Mirror
4. Audio output selection
5. Background audio
6. DRM
7. Streaming media to TV and Audio systems
Simple HTML5 video player all related feature: Seeking, bookmark, play/pause, channel switching, capture feature already support on build-in API.
Media Focus:
1. When app own media focus video could be see and heard
2. When suspends it will remove from active list, and app will mute
3. When select second media, it will leave original focus to new one.
Media format extensibility
1. Custmize your app specific support format
2. Extension are packaged and local on your app **(only for your app, no share)**
3. Extension could be naive (C++/COM) Media Fundation component.
Extending your custom format
1. Register DLL with in App manifest on MF(Media Fundation)
1. Such audio/video source filter or demux
2. In your app, register custom streaming/data format with ExtensibilityManager
1. Register your custom video/audio encoder/decoder
3. Custom effect could be insert effect pipeline
It is introduction of VC2011, here is some major demo topic as follows:
Auto spell which is powerful with Visual Assist
Auto spell, finding related function and method. It is easy to go.
JS debugging:
It is cool to have debugger for JS which also support all debugging window (variable, watch…)
Parallel stack debugging windows:
It has visualization debugging tab for parallel which could show currently threading and each thread dependency.
RT XAML editor:
During debugging you also could editing XMAL code by select on UI or select on code segment to show UI change on fly.
Simulator debugger:
I think it is very cool stuff for me such we don’t have multiple touch panel on hand but we need implement some related to “Share”, “Search” which need finger slip.
It also provide “finger”, “rotate”, “zoom” and it could simulate to different resolution for Metro UI debugging.
Any old DLL component could be easy to pack to WinRT component if no depends limited list as above.
Q&A
Two Metro UI don’t have any way to communicate for now, currently it still isolate.
For disable API, it might change depends engineer feedback to MSFT.
All Metro UI need component could be pack to WinRT component and package today to delivery to end-user via store.
Shared component is not work on Metro UI, all component must be side-by-side. Because you could not use CoCreateInstance by CLSID, so there is unique CLSID on Metro world.
Whole app on Metro UI are isolate due to security and system integrity.
