May 2016
Intermediate to advanced
200 pages
6h 43m
English
Content preview from Developing for Apple Watch, 2nd EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Getting Device Motion with the CoreMotion Framework
As it does on iOS, the CoreMotion framework allows you to get access to live-updating data of the device’s motion through space. As the Apple Watch moves through space, its sensors update data and can call back into your apps. Getting access to this data is as easy as creating a CMMotionManager instance and registering for updates. Unfortunately, as of this writing, the class knows about many more data types than the watch actually supports. The CoreMotion classes on watchOS are analogous to the same classes on iOS, so they have references to data from three sensors: an accelerometer, a gyroscope, and a magnetometer. The data from these three sensors combines into an aggregate data type called ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.