Android study guide

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Android study guide

This is the official IDE Integrated Development Environment for the Android platform, developed by Google and used to make the majority of the apps that you probably use on a daily basis. Prior to its release, Android development was handled predominantly through Eclipse IDE, which is a more generic Java IDE that also supports numerous other programming languages.

Android Studio makes life significantly easier compared with non-specialist software, but is still has a little way to go before it can claim to be a completely intuitive and smooth experience. For complete beginners, there is an awful lot to learn here and much of the information available — even through official channels — is either out of date or too dense to make head or tails of.

So just what is Android Studio?

Android study guide

The programming language you will be using is Java and this will be installed separately on your machine. Think of this as an extension to the Java code that allows it to run smoothly on Android devices and take advantage of the native hardware.

Java is needed to write the programs, the Android SDK is needed to make those programs run on Android and Android Studio has the job of putting it all together for you. At the same time, Android Studio also enables you to run your code, either through an emulator or through a piece of hardware connected to your machine.

Google has done a lot of work to make Android Studio as powerful and helpful as possible. Setting up Setting up Android Studio is fairly straightforward and is easier than ever thanks to nearly everything being bundled into one installer.

Remember, Android Studio is only really your window into Java! Follow the simple instructions during installation and it should also set you up with an Android platform that you will be able to develop with as well.

Be sure to tick the checkbox to tell the installer that you want the Android SDK as well and make a note of where Android Studio itself and the SDK are being installed.

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These are the defaults that it selected for my installation: Pick a directory for the SDK that has no spaces in it. In some cases, this will be the entire app or in others, your app might transition from one screen to the next. This will include a menu in the top right corner, as well as a FAB button — Floating Action Button — which is a design choice that Google is trying to encourage.

Pick the option that best suits the app you have in mind to build and this will impact on the kind of files you are presented with when you first start things up.

What are all these files? To me, programming meant typing in a single script and then running that script. Android Development is rather different though and involves lots of different files and resources that need to be structured in a specific way.

Android Studio exposes that fact, making it hard to know where to start!

So just what is Android Studio?

By default, this is MainActivity. Java but you may have changed that when you first set up the project. However, the actual layout of your app is handled in another piece of code entirely.

Just to make things a little more complicated though, you can actually use any XML file to define the layout of any Java script called a class. This is set right at the top of your Java code, with the line: This also means that you could theoretically use the same XML file to set layouts for two different Java classes.

A new empty activity, I love the smell of possibility in the morning!

Study Guide 6 Update

Your Java files are housed under java and then the package name of your app. Double click on MainActivity.

Android study guide

Java and it will come to the fore in the window on the right.About this Course. Learn the basics of Android and Java programming, and take the first step on your journey to becoming an Android developer! This course is designed for students who are new to programming, and want to learn how to build Android apps.

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