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 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, you might find a maternity shop named Hello World. You can find the store on your way to Pat’s (to get a delicious Philly cheesesteak). You might even take a picture of the store’s sign as a sort of inspiration for the content of this chapter: the Hello World app.
A Hello World app is the simplest program that can run in a particular programming language or on a particular platform. (For an interesting discussion of the phrase Hello World, visit http://www.mzlabs.com/JMPubs/HelloWorld.pdf.) 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.” ...
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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.