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Tech Overview Tishan Mills May 12, 2015 Apple Watch for QTS

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Tech Overview Tishan Mills

May 12, 2015

Apple Watch for QTS

What is it?

What is it?• “Smart” watch released by Apple on April 24 • Over 3500 watch apps on day one

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Watch Specs• Cases: aluminum, stainless steel & gold • Front: Ion-X glass / Saphire glass • Many different bands • Price: $399-10K+

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Phone Requirements• Requires iPhone

• 5, 5C, 5S, 6, 6+

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Watch Display• Sizes:

• 42 mm: 390 x 312 pixels (302 ppi) • 38 mm: 340 x 272 pixels (290 ppi)

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Tech Specs• 18 hour battery life • Heart rate sensor • Accelerometer • Gyroscope • 8 GB storage / 512 MB RAM • No GPS but uses iPhone

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Differentiating Features• Linear actuator (Taptic Engine) • Force touch

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Apps

Fitness Focus• Activity App & Workout App

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Communication• Answer / make phone calls

• Built in mic and speaker • SMS

• read and pre-canned responses • Siri instead of keyboard

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Apple Apps• Watch app • Turn by turn navigation • Apple pay • Customizable watch faces • Remote for Apple TV, Music • Camera remote

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Other Apps• Facebook, instagram, twitter • Slack • W Hotels • American Airlines • Pizza pizza • Uber

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Architecture

Architecture

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Architecture (cont’d)• Only UI rendered on watch (for now) • Communication between watch app and

extension on iPhone happens seamlessly (blue tooth)

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Glances• Glances show a single view

• no interaction • launches app when tapped • configured using iPhone app

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Notifications• Short look • Long look

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Short Look Notifications

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Long Look Notifications

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Design

Building a Watch App• Why use watch instead of phone? • Perfect for

• Brief interactions • Notifications • Apps that require watch hardware

• Fitness

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Design Principles• Don’t port your phone app onto the watch • Avoid using tech that requires user

permission like core location • request will trigger prompt while phone in pocket

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Design Principles• Interactions with watch should be brief

• WatchKit app is suspended without user interaction • WatchKit extension only runs while user

interacts with app • Do not use background execution modes • Avoid performing long-running tasks with a technology

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Navigation• Page-based & hierarchical

• Mutually exclusive • Modal presentations

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Page-based• Closely related data • Two or more interface controllers • “Carousel” (dot indicator) • Swipe left/right

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Hierarchical• Similar to navigation controller in iOS • Hierarchical views • Starts with root interface controller

• Push other controllers on top

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Context Menus• Use force touch • New form of interaction

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Physical Feedback• Taptic feedback (linear actuator)

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Development

Apple Watch App Development• WatchKit API available in iOS 8.2

• Beta released in Nov 2014 • Xcode 6.2 • Watch OS 1.0

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Sharing Data• iPhone app and watch app are sandboxed

• must use app groups to share data • Static • Dynamic

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UI Elements• Labels • Images • Tables • Buttons • Switches • Sliders • Maps

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UI Layout• Different layout model than iOS

• no view hierarchies, Xcode arranges vertically • Groups

• container for other elements • can arrange horizontally • Nest groups

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UI• Different layout model than iOS

• no view hierarchies, Xcode arranges vertically • Groups

• container for other elements • can arrange horizontally

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Standard Text Input

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Let’s create an Apple Watch App in 5 minutes!

Demo Time

References• WatchKit page

• https://developer.apple.com/watchkit/ • Programming Guide

• https://developer.apple.com/library/prerelease/ios/documentation/General/Conceptual/WatchKitProgrammingGuide/index.html

• Human Interface Guidelines • https://developer.apple.com/watch/human-interface-guidelines/

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