What’s New InwatchOS

HappyMan2015/07/17

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watchOS 2 and watchOS 1 architectures

Complications on the clock face

watchOS 2• new watch faces (photo, album, time lapse)• time travel feature - shows events and predicted status of

various things (e.g. weather) in the future or in the past if you've missed something

• night stand mode - landscape display, buttons act as "snooze" and "off"

• public transit support in maps and siri• siri can show glances• watch is protected by Activation Lock on startup

watchOS SDK (1)• native apps - still supplied as an iOS extension, no completely custom

views, but the code runs on the watch• "complications" - tiny widgets that can be displayed inside various

watch faces (ClockKit)• you create a timeline up front - what to show at what time, and watchOS uses

this to show up to date data immediately when the screen turns on (also used for time travel - forward and backward)

• scheduled updates - lets you update the data in the timelines at scheduled intervals

• push updates - via push notifications• apps can access the Internet through known WiFi networks w/o an

iPhone

Watch OS SDK (2)• apps can access microphone, HealthKit including heart rate,

HomeKit, accelerometer, taptic engine, crown, play audio and video, record audio, make phone calls

• a lot of well known frameworks are available like CoreGraphics, CoreLocation, CoreMotion, CoreData etc.

• WatchConnectivity framework for communication between the extension and the iPhone app

• NSURLSession can be used directly on the watch even if the iPhone is out of range

• WKInterfacePicker control for scrolling through elements with the crown

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Reference• GitHubGist - mackuba / wwdc15.md

New stuff from WWDC 2015https://gist.github.com/mackuba/15994186a4f9d7da3137

• WatchKit - Apple Developerhttps://developer.apple.com/watchkit/

• watchOS for Developers - Apple Developerhttps://developer.apple.com/watchos/pre-release/

• watchOS 2 Transition Guidehttps://developer.apple.com/library/prerelease/watchos/documentation/General/Conceptual/AppleWatch2TransitionGuide/index.html

Reference• WWDC 2015

• Introducing WatchKit for watchOS 2• Layout and Animation Techniques for WatchKit• Building Watch Apps • Designing for Apple Watch • WatchKit Tips and • Apple Watch Design Tips and Tricks• Apple Watch Accessibility • Performance on iOS and watchOS• WatchKit In-Depth, Part 1• WatchKit In-Depth, Part 2• Introducing Watch Connectivity• Networking with NSURLSession