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

Introducing RecyclerView

The RecyclerView was introduced in Android 5.0 Lollipop and was defined by Google as a more flexible and advanced version of ListView. It is based on an Adapter class similar to ListView, but it enforces the use of a ViewHolder class to improve performance and modularity, as we have seen in the previous section. The flexibility comes in when we decouple the item representation from the component and allow animations, item decorations, and layout managers to do the work.

The RecyclerView handles the adding and removing of animations using RecyclerView.ItemAnimator, which we can subclass to customize the animations. If you display data from a source or if the data changes, for instance by adding or removing items, you can call notifyItemInserted() or notifyItemRemoved() to trigger the animations.

To add separators, group items, or highlight an item, we can use RecyclerView.ItemDecoration.

One of the main differences in utilizing ListView is the use of layout managers...