App Inventor 2 Advanced Concepts
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App Inventor 2 Advanced Concepts
Author: Edward Mitchell, MS, MBA
language: en
Publisher: Edward Mitchell
Release Date: 2015-09-01
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
Absolute App Inventor 2
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”.
App Inventor 2 Databases and Files
Author: Edward Mitchell, MS, MBA
language: en
Publisher: Edward Mitchell
Release Date: 2015-09-01
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