May 2022
Intermediate to advanced
688 pages
20h 12m
English
book
Android Programming: The Big Nerd Ranch Guide, 5th Edition
by Bryan Sills, Brian Gardner, Kristin Marsicano, Chris Stewart
Content preview from Android Programming: The Big Nerd Ranch Guide, 5th Edition
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Saving Data Across Process Death
Configuration changes are not the only time the OS can destroy an activity even though the user does not intend it to.
Each app gets its own process (more specifically, a Linux process) containing a single thread to execute UI-related work on and a piece of memory to store objects in. An app’s process can be destroyed by the OS if the user navigates away for a while and Android needs to reclaim memory. When an app’s process is destroyed, all the objects stored in that process’s memory are destroyed.
Processes containing resumed or started activities get higher priority than other processes. When the OS needs to free up resources, it will select lower-priority processes first. Practically speaking, ...
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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.