MIT App Inventor 2 is a fast and simple way to create custom Android apps for smart phones or tablets. Volume 2 in the series introduces debugging methods, explains additional controls not covered in Volume 1, introduces “agile” methods for developing a real world app, and provides sample code for using the TinyDB database. This App Inventor 2 series is targeted at adult learners (high school and up). App Inventor 2 provides a simplified “drag and drop” interface to layout your app’s screen design. Then implement the app’s behavior with “drag and drop” programming blocks to quickly assemble a program in a graphical interface. Volume 1 of this series covered the basics of the App Inventor user interface Designer and the Blocks programming editor, plus basic “blocks” programming concepts and tools for arithmetic, text processing, event handling, lists and other features. Volume 2 builds upon Volume 1 to provide tips on debugging programs when the apps work incorrectly, how to us hidden editing features, and how to install your own apps on to your phone or tablet for general use. Code samples are provided for using the Notifier component for general use or for debugging, for user interface control tricks such as buttons that change color continuously or implementing the missing “radio buttons” component, using ListPicker and Spinner for list selections, and using the WebViewer to display web pages in your app. The book includes a large section on designing and building a sample real world application and finishes with a chapter on using the TinyDB database. Chapters Introduction Chapter 1 - App Inventor Tips Chapter 2 - Debugging App Inventor Programs Chapter 3 - User Interface Control Tricks Chapter 4 - Designing and Building a Real World Application Chapter 5 - Tip Calculator Version 2 Chapter 6 - Tip Calculator Version 3 Chapter 7 - Tip Calculator Version 4 Chapter 8 - Tip Calculator Version 5 Chapter 9 – Using the TinyDB database

MIT App Inventor 2 is the fast and easy way to create custom Android apps for smart phones or tablets. This guide introduces the basic App Inventor features - you can likely create your first simple app in about an hour, and understand the basic components of App Inventor in a full day. App Inventor 2 is free to use and you can use it for commercial applications too. App Inventor 2: Introduction is targeted at adult learners (high school and up) and shows how to design your app’s user interface with “drag and drop” interface controls to layout your app’s screen design. Then implement the app’s behavior with unique “drag and drop” programming blocks to quickly assemble the program in a graphical interface. This introduction covers the basics of the App Inventor user interface Designer and the Blocks programming editor, plus basic “blocks” programming concepts and tools for arithmetic, text processing, event handling, lists and other features. Updates and additional tutorials are available on the book's web site at appinventor.pevest.com

Yes, you can create your own apps for Android devices—and it’s easy to do. This extraordinary book introduces you to App Inventor 2, a powerful visual tool that lets anyone build apps. Learn App Inventor basics hands-on with step-by-step instructions for building more than a dozen fun projects, including a text answering machine app, a quiz app, and an app for finding your parked car! The second half of the book features an Inventor’s Manual to help you understand the fundamentals of app building and computer science. App Inventor 2 makes an excellent textbook for beginners and experienced developers alike. Use programming blocks to build apps—like working on a puzzle Create custom multi-media quizzes and study guides Design games and other apps with 2D graphics and animation Make a custom tour of your city, school, or workplace Control a LEGO® MINDSTORMS® NXT robot with your phone Build location-aware apps by working with your phone’s sensors Explore apps that incorporate information from the Web

This book will show you how to build apps with little or even no programming skills! It will show you how to use drag-and-drop visual programming for designing and building fully functional mobile apps for Android using MIT (Massachusetts Institute of Technology) App Inventor 2. Absolute App Inventor 2 book will take you beyond basic tutorials and will cover concepts that will help you to become a better mobile App Inventor. If you are new to programming or App Inventor, then this book will show you how to properly start-off designing and developing mobile apps and will then gradually take you through understanding more advanced concepts. If you have already used App Inventor, use this book to learn about optimization, DRY principle, design patterns and concepts that will teach you how to design & develop apps that will run more efficiently and to learn about concepts that have not been covered in other App Inventor books. The book covers good programming designs using DRY (Don’t Repeat Yourself) Principle by using App Inventor Procedures. The book also covers how to use proper abstraction and produce much cleaner code through use of App Inventor Advanced “Any Component”.

A guide to using App Inventor to create Android applications presents step-by-step instructions for a variety of projects, including creating location-aware apps, data storage, and decision-making apps.

App Inventor 2: Databases and Files is a step-by-step guide to writing apps that use TinyDB, TinyWebDB, Fusion Tables and data files for information storage and retrieval. Includes detailed explanations, examples, and a link to download sample code. This is the first tutorial to cover all of these App Inventor database and file features. If your apps need to work with data or files - you need this book! TinyDB stores data on your smart phone or tablet and is a primary way for App Inventor apps to save data, even when the app is no longer running or if the device is turned off. TinyWebDB is similar to TinyDB, but stores your data on a remote server in the network cloud. Multiple apps can share a TinyWebDB database, plus you can update the content of your TinyWebDB using just a web browser. This means you can distribute an app whose content can change over time - just by changing the values in TinyWebDB. A big challenge is the need to set up a TinyWebDB server - this book shows how to do that through free services offered by Google. Fusion Tables provide a powerful, cloud-based database system for App Inventor apps. Creating, retrieving, updating and deleting data is done using the industry standard Structured Query Language or SQL. Fusion Tables reside in the Google network cloud - this book shows you how to set up and configure Fusion Tables for you own apps using free services of Google. As your app requirements grow, Google's cloud can provide low cost servers and bandwidth for your needs. Underneath the Android OS user interface, there is a file system, similar to the file system found on Windows or Mac OS X. With App Inventor your apps can write and read data from files, and if using the special "CSV" format, App Inventor data can be shared with many spreadsheet programs. This book shows you how to create, use and access data files, and how to convert data to and from the CSV format. Over 28,000 words. Over 250 screen shots and illustrations. Numerous sample programs and code. App Inventor 2: Databases and Files - Table of Contents 1 - Introduction 2 - Using the TinyDB database 3 - Implementing Records Using Lists in TinyDB 4 - Simulating Multiple TinyDB Databases 5 - How to Use Multiple Tags in TinyDB 6 - Introduction and Setup: TinyWebDB 7 - Managing TinyWebDB in the Cloud 8 - Programming for TinyWebDB - Demo 1 9 - Adding a Tags List to TinyWebDB – Demo 2 10 - Handling Multiple Users with TinyWebDB – Demo 3 11 - Implementing a Student Quiz Application using TinyWebDB 12 - Introduction to Fusion Tables 13 - Developing Your Fusion Table App 14 - Using Text Files in App Inventor

MIT App Inventor is the fast and simple way to develop Android apps. Using a programming system that runs in your Internet browser, just drag and drop user interface components and link together program functions on screen, and then run your app directly on your Android phone or tablet. Learn to create apps using simplified interactive image sprites and to control movement using a finger on the screen or by tilting the phone or tablet. Learn how to use the "Canvas" features for drawing, including a unique way to implement traditional animation features. Includes numerous sample apps, detailed explanations, illustrations, app source code downloads and video tutorials. Volume 4 introduces the use of graphics drawing features, including general graphics features, image sprites, animation and charting. Charting refers to the creation of line, column, scatter plot, and strip recorder charts commonly used in business and finance. This is volume 4 of a 4 volume set. Volume 1 introduces App Inventor programming, Volume 2 introduces advanced features and Volume 3 covers databases and files. Visit the web site at appinventor.pevest.com to learn more about App Inventor and find more tutorials, resources, links to App Inventor books and other App Inventor web sites.