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Android Programming for Beginners

Android Programming for Beginners

By : John Horton, Paresh Mayani
4.1 (47)
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Android Programming for Beginners

Android Programming for Beginners

4.1 (47)
By: John Horton, Paresh Mayani

Overview of this book

Android is the most popular OS in the world. There are millions of devices accessing tens of thousands of applications. It is many people's entry point into the world of technology; it is an operating system for everyone. Despite this, the entry-fee to actually make Android applications is usually a computer science degree, or five years’ worth of Java experience. Android Programming for Beginners will be your companion to create Android applications from scratch—whether you’re looking to start your programming career, make an application for work, be reintroduced to mobile development, or are just looking to program for fun. We will introduce you to all the fundamental concepts of programming in an Android context, from the Java basics to working with the Android API. All examples are created from within Android Studio, the official Android development environment that helps supercharge your application development process. After this crash-course, we’ll dive deeper into Android programming and you’ll learn how to create applications with a professional-standard UI through fragments, make location-aware apps with Google Maps integration, and store your user’s data with SQLite. In addition, you’ll see how to make your apps multilingual, capture images from a device’s camera, and work with graphics, sound, and animations too. By the end of this book, you’ll be ready to start building your own custom applications in Android and Java.
Table of Contents (32 chapters)
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31
Index

Using configuration qualifiers – mini app

Create a new project and call it Configuration Qualifiers and follow the next steps:

  1. Right-click on the res folder in the project explorer and navigate to New | Android resource directory. Type layout-land and click on OK.

    Tip

    If you don't see your new directory in the project explorer, you need to change the view of the project explorer through its drop-down selector at the top of the project explorer window. Click on the drop-down selector and choose Project.

  2. In the layout_main.xml file, change the text of the default TextView widget from Hello world to Hello portrait!.
  3. Right-click on the layout-land folder and navigate to New | Layout resource. Name the file layout_main.xml. Add a single Plain TextView widget and change the text property to Hello landscape!.
  4. Run the app and rotate the device between landscape and portrait orientations. Note that the OS automatically uses the appropriate version of layout_main.xml.

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Android Programming for Beginners
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