Mike Taulty Developer/Evangelist Microsoft Ltd

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1 Mike Taulty Developer/Evangelist Microsoft Ltd

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3 Windows/Phone app building today Windows Phone Devices Windows Devices

4 Windows Phone 8.0 app platform Silverlight XAML C# Code Win32 WinRT Silverlight.NET

5 Windows 8.1 app platform HTML XAML XAML HTML Windows XAML JavaScript Code C++ Code C# Code WinJS.NET for Windows Store Win32 WinRT

6 common between Windows (8.1)/Phone (8.0) Windows Phone App Windows App C# Code Common Available Subset.NET APIs WinRT APIs Common Available Subset CAS Win32 APIs callable on Phone 8.0 via custom WinRT components

7 .NET portable class libraries binary assembly targets a set of platforms can only make use of APIs available on all of the targeted platforms

8 architecting for portability today... XAML View XAML View XAML View XAML View binds ViewModel ViewModel ViewModel binds XAML View XAML View XAML View XAML View ViewModel Model Windows Phone App Portable Class Libraries Windows 8.1 App injected at runtime Service Service Implementation Service Implementation Implementation ViewModel ViewModel Service Interface ViewModel ViewModel Portable Algorithms etc injected at runtime Service Service Implementation Service Implementation Implementation

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11 update for all phones running 8.0 runs all existing apps and games continue to rev/publish 8.0 code new UI models, runtimes & APIs for 8.1

12 Cortana voice assistant Action center Start screen personalization Lock screen personalization Word Flow keyboard Calendaring Music, Video, Podcasts Data Sense, Storage Sense, WiFi Sense Enterprise features VPN, etc. Project your phone display Many, many more

13 Windows Phone 8.1 platform changes App/game targeting 8.1 Win32 WinRT WinRT WinRT WinRT Silverlight.NET.NET for Windows Store

14 Windows & Phone 8.1 apps HTML XAML XAML HTML Windows XAML JavaScript Code C++ Code C# Code WinJS.NET for Windows Store Win32 WinRT

15 Silverlight apps on an 8.1 runtime Silverlight XAML C# Code Win32 WinRT Silverlight.NET

16 Windows/Phone is still two apps, sharing more Windows Phone 8.1 App Windows 8.1 App XAML View Phone UI XAML View Windows UI Portable Code WinRT

17 Windows/Phone is still two apps, sharing more Windows Phone 8.1 App Windows 8.1 App XAML View XAML UI XAML View XAML UI C# Code Win32.NET WinRT

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22 sharing across Windows/Phone

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24 different form factors/usage patterns single user device primary use is on the go input is touch, voice, camera variety of small, high-res screens common set of sensors (GPS etc) battery is critical limited memory/storage limited hardware extensibility multi-user device mobile is one mode of use many combined modes of input diversity of screen sizes, resolutions diversity of sensors battery is important more memory, storage full hardware extensibility

25 adapting for form factor e.g. OneNote different UX, specialised for form factor

26 XAML User Interface for Windows/Phone 8.1 same variant of XAML same rendering engine same libraries, same controls (where common)

27 XAML controls on Windows/Phone 8.1 common, same rendering common, similar rendering, different content common, different rendering unique Button Hub DatePicker SearchBox Slider ToggleSwitch ProgressBar TimePicker CommandBar AppBar etc. Pivot ContentDialog AutoSuggestBox etc. etc (many more) ListView GridView etc.

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29 WinRT across Windows/Phone 8.1 Windows Phone 8.1 Windows 8.1 e.g. action center e.g. phone dialler e.g. search contract e.g. multiple windows e.g. resizable windows e.g. printing support some common APIs may have different behaviour across Windows/Phone

30 e.g. of unified WinRT APIs for Windows/Phone files & settings: local, temp, roaming, pickers store: app purchases, receipts lifecycle: launch, suspend, resume, background tasks notifications: tiles, toasts, badges, push sensors: gps, geofencing, gyro, compass network: http, websockets, sockets localisation: resource resolution from XAML/code

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32 dealing with platform-specific code partial classes/methods inheritance extensions conditional compilation

33 dealing with platform-specific code

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36 packaging/publishing Windows/Phone 8.1 apps separate Stores/submission for Windows/Phone 8.1 apps unified developer registration, agreement & submission policy unified Store capabilities (pricing, trials, purchases etc) unified application packaging format (appx) unified application update policy (default: auto update) enterprise options for Windows/Phone 8.1 app deployment

37 naming/linking of Windows/Phone 8.1 apps unique app name across Windows/Phone stores developer can choose to link their Windows/Phone apps via package name app bought once durable in-app purchases bought once app state roams across all devices

38 describing Windows/Phone 8.1 apps Windows/Phone app manifest files have differences

39 summary greater unification of the Windows/Phone 8.1 platforms build apps with.net, JavaScript, C++ common APIs across Windows/Phone 8.1 commonality of Store across Windows/Phone 8.1 existing MVVM approach still valid good practice and opens the door to porting to other platforms

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