September 2016
Intermediate to advanced
456 pages
10h 57m
English
Content preview from Expert Android Studio
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Chapter 5Layouts with Android Studio
WHAT'S IN THIS CHAPTER?
- Layouts with Android Studio
- Layout previews
- Designing layouts with Android Studio
- Resource management
- Editing component properties
- Using other layout tools
- Asset management
So far in this book, we have covered Android Studio tools, mostly dealing with files and folders and assistants to the general application development process. This chapter explores details about another important part of the application development process: user interfaces.
User interfaces are defined with XML files in Android applications. User interface elements in Android are configured using XML tags and attributes. The Android operating system renders the user interface using the XML file and Java code to draw the user interface elements to Android devices.
Common terms used in Android UI development are layout, view, and widgets. We reference these many times in this chapter and in later chapters as well.
View is the base class of user interface elements. Widgets are derived from the View class and they become a ready-to-use user interface element such as images, texts, text inputs, drop-down boxes, and so on. Layouts are the containers for views and widgets; they are group of views.
You should now create a new project, as you did in Chapter 3. Name it ChapterFive and add a BlankActivity. You will use this new project in the following section.
LAYOUTS WITH ANDROID STUDIO
Layouts define the structure for a user interface in Android applications ...
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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.