All Authors David Gassner

David Gassner

About the Author

David Gassner is the author of over 60 video-based technical training courses for software developers.

David is a senior staff instructor who specializes in development platforms and programming languages including Android and Java. He currently creates training content for Android developers and content that covers multiple programming languages including Java, C#, Visual Basic, and Go. He was formerly the president and founder of Bardo Technical Services, an Adobe Solutions Network Training Provider. As an Adobe Certified Expert, he wrote courseware for Adobe and delivered extensive training on Flex, ColdFusion, Dreamweaver and Flash. He was the author of Wiley's Flex 3 Bible and Flash Builder 4 and Flex 4 Bible. He most recently designed and developed Audio Cues—an Android app for running sound in live performances—which is available in the Google Play store.

46 Courses

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Android Development Tips Weekly
with David Gassner
Want to become a better, more effective Android developer? Get a new tip every Wednesday that can help you code smarter and create fast, reliable apps that look great.

5h 15m Intermediate Views: 31,035 4 days ago
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Android Studio Essential Training
with David Gassner
Want to develop Android apps? You need Android Studio. Learn how to install Android Studio 3.1, set up your development environment, and start coding.

2h 28m Beginner Views: 2,428 6 days ago
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Building an Android App with Architecture Components
with David Gassner
Learn best practices and architecture recommendations for building high-quality Android apps using the Android Architecture Components for data persistence and display.

2h 29m Beginner Views: 5,027 May 16, 2018
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Kotlin Essential Training
with David Gassner
Learn the essentials of Kotlin programming. This course covers the basics any beginner Kotlin programmer needs to get started writing Kotlin code for Android and other platforms.

3h 45m Beginner Views: 16,862 Mar 15, 2018
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Android P First Look for Developers
with David Gassner
Get your first look at Android P—the next version of Android that introduces exciting new features and changes to the hugely popular system.

36m 30s Beginner Views: 2,899 Mar 13, 2018
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Java Essential Training: Objects and APIs
with David Gassner
Learn Java 9, in part two of our essential training series. Learn about debugging, creating custom classes, working with inheritance, and more.

2h 46m Intermediate Views: 62,790 Feb 6, 2018
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Java Essential Training: Syntax and Structure
with David Gassner
Get started with Java, the popular object-oriented programming language. In this course—the first installment in the Java Essential Training series—learn about basic Java syntax and the Java platform's fundamental architecture.

3h 9m Intermediate Views: 105,734 Jan 19, 2018
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Android Development Essential Training: Local Data Storage
with David Gassner
Learn how to use the data management and presentation tools of the Android SDK. David Gassner demonstrates how to use shared preferences, JSON-formatted text files, and SQLite to manage data. He shows you how to customize data display and handle common events.

3h 56m Intermediate Views: 176,611 Jan 10, 2018
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Android Development Essential Training: Design a User Interface
with David Gassner
Learn how to create a user interface for an Android app. This course covers working with the essential UI components of Android apps, including layouts, views, alignment constraints, styles, material design, text strings, and more.

3h Beginner Views: 135,147 Nov 10, 2017
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Android Development: Concurrent Programming
with David Gassner
Make your Android apps more efficient with concurrent programming. Learn how to create and manage background threads using intent services, AsyncTask, JobScheduler, and a few useful Android APIs.

1h 52m Intermediate Views: 18,624 Nov 8, 2017
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Android App Development: RESTful Web Services
with David Gassner
Take advantage of web services, integrations, and libraries to optimize how your Android app handles network connectivity, errors, data management, and more.

2h 49m Intermediate Views: 109,492 Sep 14, 2017
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Java Design Patterns and APIs for Android
with David Gassner
Take your Java skills to the next level by leveraging some of the most popular design patterns and APIs for the Android SDK.

3h 12m Beginner Views: 76,761 Aug 24, 2017
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Android Development Essential Training: Support Multiple Screens
with David Gassner
Discover how to build mobile apps for Android that support multiple screens and devices. Learn how to create alternative resource directories, work with fragments to create dynamic UIs, and more.

1h Beginner Views: 20,895 Aug 8, 2017
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Android Development Essential Training: Manage Navigation and Events
with David Gassner
Learn how to handle events and manage navigation in your Android app. This course covers the activity lifecycle, working with events using Java objects, lambda expressions, and open source libraries, sending and receiving broadcast messages, and more.

2h 34m Beginner Views: 46,188 Jun 15, 2017
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Android Studio Essential Training
with David Gassner
Want to develop Android apps? You need Android Studio—the only IDE fully supported by Google for Android app development. Learn how to install Android Studio 2.0, set up your development environment, and start coding.

3h 41m Beginner Views: 416,992 Apr 27, 2017
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IntelliJ IDEA Community Edition Essential Training
with David Gassner
Get started with IntelliJ IDEA, one of the most popular IDEs for programming Java and other Java virtual machine (JVM) languages.

2h 16m Beginner Views: 97,642 Apr 19, 2017
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Android O First Look for Developers
with David Gassner
Get ready to learn about Android O. This course covers installing Android Studio 2.4 Preview, setting up testing devices, and leveraging the new features and enhancements of Android O to improve your apps.

30m 54s Beginner Views: 10,074 Mar 31, 2017
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Installing Apache, MySQL, and PHP
with David Gassner
Learn how to install and configure Apache, MySQL, and PHP, known collectively as the AMP stack, on a local development computer. Windows, macOS, and Linux scenarios are each covered.

2h 5m Beginner Views: 245,808 Feb 17, 2017
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Visual Basic Essential Training
with David Gassner
Get started programming with Visual Basic using Visual Studio 2012 Express for Windows Desktop.

4h 18m Beginner Views: 767,426 Dec 21, 2016
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Android Development Essential Training: Distributing Apps
with David Gassner
Once you've created an Android app, it's time to share it with the world. Learn how to package and distribute Android apps on Google Play and the Amazon Appstore.

1h 31m Intermediate Views: 50,208 Dec 20, 2016
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Android Development Essential Training: Create Your First App
with David Gassner
Explore the world of Android app development. Learn the steps to creating your very first Android app in this overview course.

2h 39m Beginner Views: 334,365 Nov 30, 2016
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Building a Game App with the Android SDK
with David Gassner
Practice Android programming with this simple mobile game project. Learn how to build Android games using Java and the built-in features in the Android SDK.

2h 6m Intermediate Views: 84,767 Sep 12, 2016
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Building Flexible Android Apps with the Fragments API
with David Gassner
Create layouts for different screen sizes with the Android Fragments API. Learn to add and remove fragments with Java and XML and use fragments to dynamically choose layouts at runtime, store shared preferences, and more.

2h 26m Intermediate Views: 92,163 Sep 1, 2016
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Android App Development: Animations and Transitions
with David Gassner
Learn how to use different animation techniques to create visually compelling animations and screen transitions for Android mobile apps.

1h 39m Intermediate Views: 66,259 Jun 3, 2016
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Android N First Look for Developers
with David Gassner
Get a first look at the new features in Android N and Android Studio 2.1 in this concise quick start guide. Find out how to install the developer previews and get started creating and compiling apps, testing devices, and programming with Java 8 syntax.

32m 25s Beginner Views: 9,451 Mar 17, 2016
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Android 6.0 New Features for Developers
with David Gassner
Find out what Android 6.0 has to offer app developers like you. Learn about Marshmallow's new project templates in Android Studio, permissions frameworks, automatic backups for app data, and the many smaller features that are designed to make developers' lives easier.

1h 22m Beginner Views: 22,891 Feb 10, 2016
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Android App Development Essential Training (2015)
with David Gassner
Learn everything you need to know to get started building Android apps with Google's Android Studio and Android SDK.

5h 20m Beginner Views: 870,465 Dec 23, 2015
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Learning Go
with David Gassner
Introduces the tools and skills used in a Go workflow—including Go Playground, an online tool that takes Go development off the desktop.

3h 48m Beginner Views: 178,950 Nov 5, 2015
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Building Apps for Android Wear Devices
with David Gassner
Build apps for the Internet of Things with Android Wear! Learn how to develop apps for the emerging market of wearable tech, in these Android Wear development tutorials.

2h 30m Intermediate Views: 33,601 Sep 24, 2015
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Android App Development: Google Maps
with David Gassner
Learn to add interactive maps to mobile applications with the Google Maps Android API—a free Google Play service included on almost every Android device.

2h 47m Intermediate Views: 106,954 Aug 18, 2015
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Java 7 Essential Training
with David Gassner
Explore Java SE, the language used to build mobile apps, desktop and web applications, and more.

6h 4m Beginner Views: 3,369,444 Jul 24, 2015
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Building a Note-Taking App for Android
with David Gassner
Create a complete note-taking app from scratch with Android Studio, and then watch companion courses in Windows and iOS to compare the app development workflows.

2h 38m Intermediate Views: 189,706 May 29, 2015
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C# Essential Training
with David Gassner
Learn C#, the object-oriented language from Microsoft that's used to program systems, desktop applications, and mobile apps. These C# tutorials cover the history, syntax, and important concepts of this powerful programming language.

5h Intermediate Views: 1,988,391 Jan 18, 2015
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Code Clinic: C#
with David Gassner
Explore solutions to common C# programming challenges, and compare the results with other programming languages, in the Code Clinic series.

3h 14m Intermediate Views: 170,293 Dec 16, 2014
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Programming Foundations: Programming for Kids
with David Gassner
Programming can be fun and gives kids a great head start. Teach your kids to program using these learning techniques, apps, and hardware.

2h 8m Beginner Views: 281,567 Nov 10, 2014
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Building Adaptive Android Apps with Fragments
with David Gassner
Teaches Android developers how to program with the Fragments API, and build apps that work well on Android phones, tablets, and even desktop computers.

2h 8m Intermediate Views: 131,690 Aug 21, 2014
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Android Studio First Look
with David Gassner
Get a first look at Android Studio, the new IDE for building and packaging Android apps, before its official release.

2h 22m Beginner Views: 189,547 Aug 20, 2014
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Java SE 8 New Features
with David Gassner
Take a tour of the new features in Java SE 8, including lambda expressions, the Stream and DateTime APIs, and Nashorn.

2h 40m Beginner Views: 249,036 May 28, 2014
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Heartbleed Tactics for Small IT Shops
with David Gassner
Protect your sites—and your servers—from Heartbleed. Learn how to audit, test, and fix vulnerability issues associated with OpenSSL.

16m 39s Beginner Views: 10,472 Apr 15, 2014
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Java: XML Integration
with David Gassner
Learn how to create and parse XML with a variety of Java APIs and libraries, including DOM, SAX, JAXB, and more.

4h 56m Intermediate Views: 187,073 Nov 8, 2013
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Programming Foundations: Web Services
with David Gassner
Learn about the history, types, and various implementations of web services—the standard method of communicating between applications and across the web.

3h 17m Beginner Views: 878,771 Aug 21, 2013
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Building Mobile Apps with Google Maps Android API v2
with David Gassner
Add interactive maps to your Android apps with Google Maps Android API v2.

3h 50m Intermediate Views: 123,845 Aug 7, 2013
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ASP.NET Essential Training
with David Gassner
Learn to build and deploy a dynamic website using ASP.NET.

6h 24m Beginner Views: 1,956,942 Feb 13, 2013
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Java: Database Integration with JDBC
with David Gassner
Describes how to read and manage data from relational databases such as MySQL and SQL Server using the Java Database Connectivity (JDBC) API in applications programmed with Java.

2h 51m Intermediate Views: 398,952 Nov 28, 2012
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Advanced Java Programming
with David Gassner
Expand your programming skills and get more out of Java, with platform- and framework-neutral tutorials that are useful for building web, mobile, and desktop applications.

3h 33m Advanced Views: 952,006 Sep 27, 2012
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Flash Builder 4.5 and Flex 4.5 New Features
with David Gassner
Offers developers an overview of the latest enhancements found in Flash Builder 4.5 and Flex 4.5.

2h 15m Intermediate Views: 37,862 May 2, 2011

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David Gassner

About the Author

46 Courses

Android Development Tips Weekly

Android Studio Essential Training

Building an Android App with Architecture Components

Kotlin Essential Training

Android P First Look for Developers

Java Essential Training: Objects and APIs

Java Essential Training: Syntax and Structure

Android Development Essential Training: Local Data Storage

Android Development Essential Training: Design a User Interface

Android Development: Concurrent Programming

Android App Development: RESTful Web Services

Java Design Patterns and APIs for Android

Android Development Essential Training: Support Multiple Screens

Android Development Essential Training: Manage Navigation and Events

Android Studio Essential Training

IntelliJ IDEA Community Edition Essential Training

Android O First Look for Developers

Installing Apache, MySQL, and PHP

Visual Basic Essential Training

Android Development Essential Training: Distributing Apps

Android Development Essential Training: Create Your First App

Building a Game App with the Android SDK

Building Flexible Android Apps with the Fragments API

Android App Development: Animations and Transitions

Android N First Look for Developers

Android 6.0 New Features for Developers

Android App Development Essential Training (2015)

Learning Go

Building Apps for Android Wear Devices

Android App Development: Google Maps

Java 7 Essential Training

Building a Note-Taking App for Android

C# Essential Training

Code Clinic: C#

Programming Foundations: Programming for Kids

Building Adaptive Android Apps with Fragments

Android Studio First Look

Java SE 8 New Features