July 2015
Beginner to intermediate
600 pages
18h 59m
English
book
Android Programming: The Big Nerd Ranch Guide, 2nd Edition
by Bill Phillips, Chris Stewart, Brian Hardy, Kristin Marsicano
Content preview from Android Programming: The Big Nerd Ranch Guide, 2nd Edition
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For the More Curious: Why Use Fragment Arguments?
This all seems so complicated. Why not just set an instance variable on the CrimeFragment when it is created?
Because it would not always work. When the OS re-creates your fragment, either across a configuration change or when the user has switched out of your app and the OS reclaims memory, all of your instance variables will be lost. Also, remember that there is no way to cheat low-memory death, no matter how hard you try.
If you want something that works in all cases, you have to persist your arguments.
One option is to use the saved instance state mechanism. You can store the crime ID as a normal instance variable, save the crime ID in onSaveInstanceState(Bundle), and snag 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.