August 2020
Intermediate to advanced
800 pages
20h 12m
English
book
Android Application Development All-in-One For Dummies, 3rd Edition
by Barry Burd, John Paul Mueller
Content preview from Android Application Development All-in-One For Dummies, 3rd Edition
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Chapter 7
A <brief> Look at XML
IN THIS CHAPTER
What XML can do for you
What goes into an XML document
How XML handles the names of things
As described in the “Comparing the Functional Paradigm” section of Chapter 6 of this minibook, modern software takes on several forms, and Kotlin can express a number of them in a similar manner as other languages like Python do. One way or another, a development platform should use the best software for the job. That's why the Android platform uses both procedural and declarative software.
- Android's procedural Kotlin code tells a device what to do.
- Android's declarative XML code describes a layout, an application, a set of strings, a set of preferences, or some other information that's useful to a mobile device.
A typical Android application is a mix of Kotlin code (with Java underpinnings), XML code, and a few other things. So when you develop for Android, you write lots of Kotlin code and you mess with XML code.
What? You “mess with” XML code? What does that mean?
The truth is, XML code is painful to type. A typical XML file involves many elements, each requiring very precise wording and all looking very much alike at first glance. So ...
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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.