Eclipse Android Tutorial for Beginners Pdf
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Eclipse android tutorial for beginners pdf Continue Learning about Android app development may seem like a challenge, but it can open up a huge world of possibilities. You can create the following hit app that changes the way we work or interact with each other. Maybe you will develop a tool that you can use yourself to improve your workflow. Or maybe you'll just get a new skill that lands you a great job! Read also: Creating an app with no programming experience: What are your options? Either way, learning to develop Android apps may not be as tough as you think, as long as you understand what all the different moving parts are for, and there is a roadmap to guide you through. This post is what the roadmap is! Step 1: Downloading the tools you need to develop AndroidFirst apps, you need to create a development environment so that your desktop is ready to support your Android development goals. To do this, you will need Android Studio and Android SDK. Luckily, they both come packed together in the same download that you can find here. Android Studio is IDE. This means an integrated development environment, which is essentially an interface where you can enter code (primarily Java or Kotlin) and access all the different tools needed for development. Android Studio allows you access to libraries and APIs from Android SDK, thereby giving you access to your home operating system features. You'll also be able to build an app in APK using Gradle, test it with a virtual device (emulator) and debug your code while it's working. With all that said, keep in mind that there are other options for developing an Android app. For example, Unity is a very powerful cross-platform game development tool that also supports Android. Similarly, Visual Studio with Xamarin is a great combination to create cross-platform applications in C. We have handy guides to get started with each of these options: Android Studio is the best place for most people to start (with Android game development being an exception), particularly since it provides all these additional tools and resources in one place. Fortunately, the set up is very simple and you only need to follow along with the instructions on the screen. Get customized with Android Studio by following our handy guides: Android Studio tutorial for beginners How to install Android SDKStep 2: Start a new projectA order you have Android Studio on your machine, the next step is the launch of a new project. This is a simple process, but you will need to make a few decisions that will affect the development of the Android app in the future. Go to file a new project. Now you will be Choose a design template. This identifies elements of the code and user interface that will be included in your new app when it is downloaded. The word Activity refers to the screen in the app. Thus, a project with No Activity activities completely empty, except for the basic file structure. The main activity, on the other hand, will create a starter screen for your app and add a button at the bottom and a burger menu at the top. These are common elements in many Android apps, so this can save some time. However, it can also risk making things more difficult when you first cope with the development. For this reason, we will choose Empty Activities. This will create action and some files for us, but it won't add much extra code. Choose the name and name of the package for your new app. The name is what your audience will see when the app is installed on their device. The name of the package is an internal link used by Android to distinguish it from other apps. This should be done using a top-level domain (such as .com), a domain name, and an app name. For example: com.androidauthority.sampleapp.If you don't have a domain or company, just use a lump and then what appeals to you! You also need to decide where you want the files to be stored and what language you are going to code in: Java or Kotlin.Java vs. Kotlin for Android app developmentOne of the biggest solutions you need to make as an Android developer whether you are going to learn Kotlin or Java. Both languages are officially supported by Google and Android Studio, but they have some obvious differences. Java has been supported by Google long and what developers have been using to create Android apps for years. Java is also one of the most sought-after programming languages in the world, making it a great choice for those who want to start a career in development. As the oldest Android programming language, there is also a bit more support for Java vs. Kotlin, although it's not much. Kotlin, on the other hand, has become Google's preferred choice for Android development. This is the default when you launch a new app, and it will probably become more common in the future. Kotlin is also much easier to cope with if you are a complete beginner. For these reasons, Kotlin is probably the language of choice for Android developers who learn for fun, or who have no desire to evolve for other platforms. However, Java makes more sense if you are interested in becoming a professional developer. You can learn more about two options here: Kotlin vs. Java for Android: key differencesMinimum SDKFinally, you should also consider your minimum SDK. This is the lowest version of Android you want your app to support. The lower you make this number, the wider your potential audience will be. Keep in mind that there is a relatively low adoption rate for the latest versions of Android, so stick to the latest update discourage many users from trying your creation. If we leave the version as a quality default (Android 10), we only support 8.2% of devices! Google: do better. However, you'll only be able to access the latest Android features if you're targeting a more rideable version. If you like the sound support chat bubbles, then you want to stick to the latest version. Step 3: Check out the files I remember the first time I tried developing an Android app. I downloaded Android Studio and was immediately puzzled by what I saw. There are only so many different files, several types of code, folders, and more! These were worlds away from one empty file that I used to work in Python or even basic (does anyone remember Basic??). It can be quite challenging, but here's what you need to know. The open file is MainActivity.java or MainActivity.kt. This is the basic logical file for action that will determine how your application behaves. Look to the left and you'll see what this file is in: MyApplication's app is a zgt; src qgt; Java's qgt; the company's name is zapplication. The folders used are important for developing Android apps, as they help Android Studio and Gradle find everything and build it correctly (more on Gradle at the moment). Suffice it to say, you can't just rename them as you please! You'll notice that the homepage already has a code. This is what we call boiler code, which means that it is code that is almost identical in different application projects and that it is necessary that the basic functions work. The boilerplate code is that you find yourself typing over and over again! One of the advantages of Kotlin is that it requires fewer templates, meaning that you'll have less code on the screen if that's what you chose. Introducing a mock-up of files The most important role of this code is to inform Android where the layout file is connected. The layout file is slightly different from the Kotlin/Java file. This defines what the action looks like and allows you to add things like buttons, text, and browser windows. You'll find this file in: MyApplication app zgt; src zgt; res qgt. It will be called activity_main.xml. Please note that files stored in the resource folder cannot be used by capitals; they should use a character to emphasize distinguish different words. Double tap this file and it will open in the main window where you edit your code. Please note that you can switch between open files with tabs at the top. You can view this file using a code view, a Design view, or a split view that shows these windows side by side. There are buttons to switch mode to top right. In the design presentation, you can actually drag and drop different widgets on The presentation of the code shows the load of the XML script. When you add new widgets through the design view, this script will be updated. Similarly, you can customize the properties of the widgets (so-called views) here and see their reflection in the through a presentation of the code. In the vast majority of applications, you need to create a new Java/Kotlin file and an appropriate XML file every time you need a new action. And for those who have wondered: yes, this means you have to learn either Kotlin or Java and XML. It's a bit of a headache, but it actually simplifies the process in the long run. For the introduction to use XML, check out this guide: To cope with different opinions and what they do: Creating your Android user interface: Everything you need to know about ViewsThe other files and folders there are a lot more files and folders here though, so what do they all do? The truth is, you don't need to know that everything is here.