Andrej Radinger, MVP APPA Mundi Ltd. MOB303

About Andrej Radinger Director for Consulting and Training at APPA Mundi Microsoft MVP for Mobile Devices since 2004 Regular speaker on Microsoft events in the region Contact me at: Mobile Services: Consulting, Development, Training

Assumptions & Disclaimers This is a level 300 session! You already know the basics of Windows Mobile development with.NET Compact Framework Making things easy: Windows Mobile 6 Professional = Pocket PC Windows Mobile 6 Standard = Smartphone All demos in this session apply to both Windows Mobile 6.1 & 6.5 Based on hardware-specific APIs

Agenda Windows Mobile Device Input Options Mobile UI Design Guidelines & Best Practices Next Generation Input for Devices Unified Sensor API (Codeplex) Working with Accelerometers Working with Light Sensors Detecting Simple Touch Screen Gestures Provide Sensory Feedback to Users Summary

Windows Mobile Device Form Factors Pocket PC (including Pocket PC Phone) Tactile screen, stylus, standard buttons QWERTY Keyboard: Built-in, “slideable”, none Smartphone Numeric keypad or full QWERTY keyboard No stylus, cursor keys Industrial/Embedded “Ruggedized” Pocket PCs Numeric/Alphanumeric keypads Handheld PC Clamshell, Tablet-style VGA, ½-VGA screen QWERTY Keyboard

Understanding the Windows Mobile User Interface Limited Screen Real Estate Limited Memory Environment Touch-Sensitive Screen on Pocket PCs: Stylus or Finger Input Soft Input Panel (Pocket PC) Hardware Keys Built-in/slideable Keyboards (on certain models) Numeric Keypad (Smartphone) Voice Commands

Key User Interface Principles Design a new UI for a mobile device, don’t port your desktop UI Completely redesign the user interface Business logic may be reusable Choose the correct model based on the form factor Pocket PC should always be full-screen Limit free text entry on devices with no keyboards Keep the user interface simple Avoid control overcrowding Limit the required number of clicks as much as possible Take advantage of new UX hardware options!

New UX Hardware Options User Experience (UX) includes input & output Touch Screen Gestures Feedback via Vibration Feedback via Sounds Accelerometers Light Sensors Navigation Wheels Capacitive Touch Screens* Not featured on any Windows Mobile device announced to date

Unified Sensor API Allows developers to easily access the hardware sensors that are available on various devices Accelerometer (GSensor) Light Sensor Stylus Sensor Navigation Wheel CodePlex Open Source Community Project Created by Koushik K. Dutta Devices: HTC Touch*, Samsung Omnia/Instinct

Accelerometer: GSensor Return a device orientation vector The vector is the direction of force relative to the orientation of the device. Tilt X: 0 is flat, to Tilt Y: 0 is flat, to Tilt Z: 0 is straight up, is flat, 1000 is face down Switch between landscape/portrait mode Can be used to as an alternative to 4-way cursor keys +Y -Y +X -X +Z -Z

Unified Sensor API Working with the Accelerometer using GSensor

Light Sensor Return the ambient luminance based on a device’s light sensor Single numerical value Ranges from 0 to 30 Change UI color scheme based on ambient lighting Create a new light sensor with HTCSensorOpen(HTCSensor.Light) in HTCSensorSDK.dll

Unified Sensor API Detecting Ambient Lighting with LightSensor

Touch Screens & Gestures Windows Mobile devices use a resistive touch screen: single touch point Can detect simple gestures using the “mouse” events in.NET Compact Framework Stylus and fingers fire mouse events in Compact Windows Forms MouseDown: Capture the start position MouseUp: Detect end position, calculate direction, even the distance if needed Track the position with MouseMove if the user goes off-screen

Detecting Simple Screen Gestures Tracking the Stylus with “Mouse” Events in WinForms

Providing Feedback to the User Visual Cues on Screen Playing Sounds Vibrating the device

Vibration Providing vibration feedback to the user

Playing Sound in NETCF 3.5 // Play custom sound files with SoundPlayer Dim soundplayer As New Media.SoundPlayer With soundplayer.SoundLocation = "\My Documents\My Ringtones\murloc.wav".Play() End With // Play standard system sounds Media.SystemSounds.Asterisk.Play() Media.SystemSounds.Beep.Play() Media.SystemSounds.Exclamation.Play() Media.SystemSounds.Hand.Play() Media.SystemSounds.Question.Play()

Summary Users expect more from their mobile devices Create a next generation user experience (UX) Tap into the advanced hardware capabilities of your Windows Mobile devices Make your device application input intuitive Use simple gestures to add another layer of interaction to your mobile application Provide audible and sensory feedback to your users Download and test drive the Windows Mobile Unified Sensor API from CodePlex

Additional Resources Windows Mobile Developer MSDN Online Koushik Dutta’s Blog: My Brain Hurts Microsoft Mobile Development Handbook By Andy Wigley, Daniel Moth, Peter Foot – Microsoft Press (2007)

Andrej Radinger, MVP APPA Mundi

Sessions On-Demand & Community Resources for IT Professionals n n Resources for Developers Microsoft Certification & Training Resources Resources Required Slide Speakers, TechEd 2009 is not producing a DVD. Please announce that attendees can access session recordings at TechEd Online. Required Slide Speakers, TechEd 2009 is not producing a DVD. Please announce that attendees can access session recordings at TechEd Online.

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