Book Image

Android Programming for Beginners - Third Edition

By : John Horton
Book Image

Android Programming for Beginners - Third Edition

By: John Horton

Overview of this book

Do you want to make a career in programming but don’t know where to start? Do you have a great idea for an app but don't know how to make it a reality? Or are you worried that you’ll have to learn Java programming to become an Android developer? Look no further! This new and expanded third edition of Android Programming for Beginners will be your guide to creating Android applications from scratch. The book starts by introducing you to all the fundamental concepts of programming in an Android context, from the basics of Java to working with the Android API. You’ll learn with the help of examples that use up-to-date API classes and are created within Android Studio, the official Android development environment that helps supercharge your mobile application development process. After a crash course on the key programming concepts, you’ll explore Android programming and get to grips with creating applications with a professional-standard UI using fragments and storing user data with SQLite. This Android Java book also shows you how you can make your apps multilingual, draw on the screen with a finger, and work with graphics, sound, and animations. By the end of this Android programming book, you'll be ready to start building your own custom applications in Android and Java.
Table of Contents (30 chapters)

Running the Age Database app

Let's run through some of the functions of our app to make sure it is working as expected.

First, I added a new name to the database using the Insert menu option:

Figure 27.3 – Insert menu

Then I confirmed it was there by viewing the Results option:

Figure 27.4 – Results option

After that, I added a few more names and ages just to fill the database up a little bit:

Figure 27.5 – Filling the database

Then I used the Delete menu option and looked at the Results option again to check that my chosen name was in fact removed:

Figure 27.6 – Delete menu

I then searched for a name that I knew existed to test the Search menu option:

Figure 27.7 – Search menu

Let's review what we have done in this chapter.