August 2015
Beginner
768 pages
18h 18m
English
Content preview from Android Application Development All-in-One For Dummies, 2nd Edition
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Chapter 3
Creating an Android App
In This Chapter
Creating an elementary Android app
Troubleshooting troublesome apps
Testing an app on an emulator or a real device
In a quiet neighborhood in south Philadelphia, there’s a maternity shop named Hello World. I stumbled on to the store on my way to Pat’s (to get a delicious Philly cheesesteak, of course), and I couldn’t resist taking a picture of the store’s sign.
Computer geek that I am, I’d never thought of Hello World as anything but an app. A Hello World app is the simplest program that can run in a particular programming language or on a particular platform.* Authors create Hello World apps to show people how to get started writing code for a particular system.
So, in this chapter, you make an Android Hello World app. The app doesn’t do much. (In fact, you might argue that the app doesn’t do anything!) But the example shows you how to create and run new Android projects.
Creating Your First App
A typical gadget comes with a manual. The manual’s first sentence is “Read all 37 safety warnings before attempting to install this product.” Don’t you love it? You can’t get to the good stuff without wading through the preliminaries. ...
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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.