Book Image

Mastering Android Application Development

By : Antonio Pachon
Book Image

Mastering Android Application Development

By: Antonio Pachon

Overview of this book

There are millions of Android apps out there for people to download – how do you make sure yours has the edge? It’s not always about innovation and ideas – the most successful apps are those that are able to satisfy customer demands – they’re the ones that look the best, the fastest, and the easiest and most intuitive to use. This book shows you how to create Android applications that do precisely that – it has been designed help you consider and answer those questions throughout the development process, so you can create applications that stand out against the crowd. Learn how to create exemplary UIs that contribute to a satisfying user experience through the lens of Material Design, and explore how to harness the range of features within the Android SDK to help you. Dive deeper into complex programming concepts and discover how to leverage concurrency and navigate memory management and image handling. You’ll also find further guidance on testing and debugging so you can guarantee that your application is reliable and robust for users. Beyond this you’ll find out how to extend your app and add greater functionality, including notifications, location services, adverts and app billing (essential if you want to properly monetize your creation!). To make sure you have confidence at every stage in the process, the book also shows you how to release your app to the Play store – to make sure your maximising your efforts to create a popular Android application!
Table of Contents (19 chapters)
Mastering Android Application Development
About the Author
About the Reviewers


In this section, we are going to review briefly the key concepts of fragments to explain advanced features and components, such as Fragment Manager and the fragments back stack.

In our example, we will create an activity called MainActivity and four fragments: ListFragment, ContactFragment, SettingsFragment, and DetailsFragment. For this, you can create a fragments package and double-click on the package to go to New | Fragment | Blank Fragment. Take a look at the following dialog box:

For now, you can create them without the fragment factory methods and the interface callbacks. We will cover these later in the chapter.

Our project so far should look like this in the Project view:

Understanding the importance of fragments

A fragment represents a behavior or a portion of the user interface in an activity. You can combine multiple fragments in a single activity to build a multipane UI and reuse a fragment in multiple activities. You can think of a fragment as a modular section of an activity...