January 2017
Beginner to intermediate
624 pages
22h 42m
English
book
Android Programming: The Big Nerd Ranch Guide, Third Edition
by Bill Phillips, Chris Stewart, Kristin Marsicano
Content preview from Android Programming: The Big Nerd Ranch Guide, Third Edition
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Receiving a System Broadcast: Waking Up on Boot
PhotoGallery’s background alarm works, but it is not perfect. If the user reboots the device, the alarm will be forgotten.
Apps that perform an ongoing process for the user generally need to wake themselves up after the device is booted.
You can detect when boot is completed by listening for a broadcast intent with the BOOT_COMPLETED action.
The system sends out a BOOT_COMPLETED broadcast intent whenever the device is turned on.
You can listen for it by creating and registering a standalone broadcast receiver that filters for the appropriate action.
Creating and registering a standalone receiver
A standalone receiver is a broadcast receiver that is declared in the manifest. Such ...
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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.