June 2015
Intermediate to advanced
100 pages
3h 29m
English
Content preview from Developing for Apple WatchBecome 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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Using Images Efficiently
When it comes to using images in our WatchKit app, the most important thing to keep in mind is performance. We want our images to appear quickly on the watch, and look good to boot. To that end, let’s look at various ways to get our images into our WatchKit extension and our watch app, and how to use different images for differently sized devices.
Using the Right Image Size
The two sizes of Apple Watch both sport Retina displays with an @2x image scale, but they differ in their point sizes. This means a full-screen image will be larger on the 42mm Apple Watch than on the 38mm. For some images this doesn’t matter; the image will remain the same size, and the content around it will have more room on the larger display. ...
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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.