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  • Book Overview & Buying App Inventor 2 Essentials
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App Inventor 2 Essentials

App Inventor 2 Essentials

By : Kamriani, Roy
4.2 (9)
Buy this Book
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App Inventor 2 Essentials

App Inventor 2 Essentials

4.2 (9)
By: Kamriani, Roy
Buy this Book

Overview of this book

App Inventor 2 will take you on a journey of mobile app development. We begin by introducing you to the functionalities of App Inventor and giving you an idea about the types of apps you can develop using it. We walk you through the technical set up so you can take advantage of the interactive development environment (live testing). You will get hands-on, practical experience building three different apps using tutorials. Along the way, you will learn computer science principles as well as tips to help you prepare for the creative process of building an app from scratch. By the end of the journey, you will learn how to package an app and deploy it to app markets. App Inventor 2 Essentials prepares you to amass a resource of skills, knowledge and experience to become a mobile app developer
Table of Contents (10 chapters)
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Preface
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Preface
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What this book covers
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What you need to build mobile apps
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Who this book is for
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Conventions
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Reader feedback
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Customer support
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1
1. Unleashing Creativity with MIT App Inventor 2
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1. Unleashing Creativity with MIT App Inventor 2
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What is MIT App Inventor 2?
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MIT App Inventor – purpose and potential
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Summary
2
2. Setting Up MIT App Inventor 2
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2. Setting Up MIT App Inventor 2
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The initial setup
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Connectivity setup
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Summary
3
3. Navigating the App Inventor Platform
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3. Navigating the App Inventor Platform
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The projects view
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The Designer
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Creating a game app
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The Blocks editor
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Summary
4
4. Fling App – Part 2
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4. Fling App – Part 2
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Adding a scoring feature
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Increasing difficulty
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Changing the game's dynamic
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Creating levels
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Updating the score label to display the level
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Updating the Reset button
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Updating the Play button
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Summary
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5. Building an Event App
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5. Building an Event App
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User Interface for an event app
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Setting the background image
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Adding an image component
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Adding buttons
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Adding the ActivityStarter
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Adding screens
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Programming the blocks
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Summary
6
6. Introduction to Databases
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6. Introduction to Databases
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Creating a database
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Designing the RSVP screen
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Setting up Google Authentication
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Sharing the Fusion Table with the service account email
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Connecting the app to the Google Fusion Table
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Pushing data to the Fusion Table
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Ensuring empty rows are not inserted
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Viewing the guest list
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Coding the blocks – requesting data
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Coding the blocks – receiving data
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Sharing the Event App
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Summary
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7. Learning About Loops with a Raffle App
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7. Learning About Loops with a Raffle App
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Creating the project and building the GUI
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Summary
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8. Expanding Your Mobile App Development Skills
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8. Expanding Your Mobile App Development Skills
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Design principles
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App Inventor extras
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Distributing your app
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Summary
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Index
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Index

Chapter 4. Fling App – Part 2

In Chapter 3, Navigating the App Inventor Platform, you learned to use the MIT App Inventor Designer and Blocks Editor by creating your first fully functional mobile app! In this chapter, we will show you how you can take the basic Fling app and build it out by adding more complex features. We will demonstrate how to enable:

  • A scoring mechanism that will display when the ball touches the top edge
  • Code, so the ball can only be flung from the lower half of the screen
  • The increasing levels of difficulty by increasing ball speed

We will also begin debugging. Debugging is a standard practice in app development and should be viewed as part of the process, not as something negative.

Each time you add new components to your app, we encourage you to share your app with others to get feedback. Not only will the feedback give you ideas about the design, but it will also help you learn what users want from an app game. Such information will prove invaluable...

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