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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State and Configuration Changes
Currently, Coda Pizza has a small problem, and it will instantly be familiar to you. Run Coda Pizza and add a topping or two to the pizza. Then rotate your device or emulator.
Yep. The topping selections are lost after the configuration change. remember persists state across recompositions, but it has its limits: When your Activity is destroyed and re-created, so is your composition. Because the composition is discarded, it will restart from a blank slate when your Activity is re-created and calls setContent.
This was not an issue when you declared the pizza state as a global variable. But now, because your state is associated with your composition hierarchy – and, by extension, your activity – it ...
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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.