Ronnie Saurenmann Microsoft Switzerland

My Apps SwissTXT (Prototype) MySwitzerland Deepzoom Zermatt Miss Switzerland 2010

TextBox InputScope InputScope gives a hint to the system which Soft Input Panel layout to use

Silverlight 3 / 4 reuse You can use most of the SL3.dlls You can use SL4.dlls if they don’t use SL4 specific features

Progress bar issues 7 Use PerformanceProgressBar instead of just the built-in ProgressBar style Turn off IsIndeterminate when not needed Collapse the ProgressBar

Tile notification tip The only way to change the tile is through notification Sometime push notification is too complex and requires server side code Use ShellTileScheduler as pull mechanism Max 1 refresh per hour Doesn't need any server side code

User & Device info Unique device id Will not change across hard rest, reflash, etc… Not good for user detection Device changes hands but the id stay the same Unique User Bound to the LiveId Doesn’t work on the emulator string did= DeviceExtendedProperties.GetValue("DeviceName").ToString(); string uniqueUser = UserExtendedProperties.GetValue("ANID").ToString().Substring(2, 32);

Panorama & Pivot tips MouseDown, MouseUp & Flick / Pan Apps can show / hide Microsoft.Phone.Shell.SystemTray.IsVisible = false;

Accelerometer Measures force applied on each axis over time +Y -Y +X -X +Z -Z

Vibration Vibrates the phone for a given duration Useful for haptic feedback Notifying users of updates VibrateController vc = VibrateController.Default; vc.Start(TimeSpan.FromSeconds(2)); // vc.Stop (); //to stop it before the timespan

Localization Through Resources & DataBinding Special car for the ApplicationBar Part of the Phone Shell not data-bindable

Toolkit ContextMenu DatePicker & TimePicker ToggleSwitch WrapPanel GestureListener More to come Autocomplete ……

Start-up Use a splash screen Include applicationsplashscreen.jpg Watch out in this OS version you cannot localize it

Start-up (2) Delay loading resources at start-up. Avoid running code on constructors and Loaded events Aim for small assemblies Include content instead of resources Assets from the web or in the XAP? If not too big better in the XAP Save bandwidth costs Faster / Offline usage Taxed only once at install time

Gesture Listener

Threading (on Phone) UI thread Input (touch) Layout Measure and arrange User code E.g. per-frame callbacks E.g. Blocking on Network Animations not done in Render thread Compositor Thread Simple Animations Only “double” Animations for simple Properties Render Transforms Opacity Perspective Transforms Rectangular Clip

Leverage GPU Use simple animations of Simple properties Cache CacheMode = “BitmapCache” Do not use: Non-rectangular clips Opacity mask Not simple animations (e.g. ColorAnimation) Large textures ( > 2K pixels either way)

The Emulator Leverages GPU on your PC Often much more CPU than on device Uses a single core Requires DirectX 10 capable hardware

Windows Phone Themes Windows Phone 7 allows users to customize the system theme on their phone Select between Light or Dark background Select from a choice of 10 accent colors Silverlight controls are all theme aware Adopt color scheme selected by the user by default Developer can customise control rendering and override any themed properties

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