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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Working Out with HealthKit
The sensors we looked at accessing in the previous part of this chapter, such as the accelerometer, are great at providing data about the device, but the Apple Watch has another sensor available to us that’s only available on the watch: the heart rate sensor on the back of the device. This sensor, combined with the impressive water resistance of the watch, makes it an amazing companion for working out, whether you’re a weekend warrior or professional athlete. Let’s add support for this sensor to TapALap. You’ll use the watch to save a workout session to HealthKit, which will allow you not only to access heart rate and calorie burn data but also to save the data back to the user’s phone and contribute to his daily Activity ...
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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.