Book Image

Android Programming for Beginners

By : John Horton, Paresh Mayani
Book Image

Android Programming for Beginners

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 (37 chapters)
Android Programming for Beginners
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Implementing the dialog designs


Now, we will do something that we have done many times before, but for a new reason. As we know, we will have two dialog windows. One for the user to enter a new note and one for the user to view a note of their choice.

We can design the layouts of these two dialog windows in exactly the same way as we have designed all our previous layouts. When we come to create the Java code for the DialogFragment classes, we will then see how we incorporate these layouts.

First, let's add a layout for our "new note" dialog:

  1. Right-click on the layout folder in the project explorer and select Layout resource file under New. Enter dialog_new_note in the File name field and RelativeLayout in the Root element field. Click on OK to generate the new layout.

  2. Refer to the target design in the next screenshot while following the rest of these instructions:

  3. Drag and drop PlainText (from the Text Fields category) to the very top and on the left-hand side of the layout and then add another...