November 2013
Intermediate to advanced
576 pages
19h 3m
English
book
iOS Components and Frameworks: Understanding the Advanced Features of the iOS SDK
by Kyle Richter, Joe Keeley
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Significant Change Notifications
After a location has been acquired by the app, Apple strongly recommends stopping location updates to preserve battery life. If the app does not require a constant, accurate location, then monitoring for significant location changes can provide an efficient way of informing the app when the device has moved without consuming a lot of power to keep the GPS and Wi-Fi monitoring the current location.
[self.locationManager startMonitoringSignificantLocationChanges];
Typically, a notification is generated when the device has moved at least 500 meters, or has changed cell towers. Notifications are not sent unless at least five minutes has elapsed since the last notification. Location update ...
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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.