Book Image

Android High Performance Programming

By : Emil Atanasov, Enrique López Mañas, Diego Grancini
Book Image

Android High Performance Programming

By: Emil Atanasov, Enrique López Mañas, Diego Grancini

Overview of this book

Performant applications are one of the key drivers of success in the mobile world. Users may abandon an app if it runs slowly. Learning how to build applications that balance speed and performance with functionality and UX can be a challenge; however, it's now more important than ever to get that balance right. Android High Performance will start you thinking about how to wring the most from any hardware your app is installed on, so you can increase your reach and engagement. The book begins by providing an introduction to state–of-the-art Android techniques and the importance of performance in an Android application. Then, we will explain the Android SDK tools regularly used to debug and profile Android applications. We will also learn about some advanced topics such as building layouts, multithreading, networking, and security. Battery life is one of the biggest bottlenecks in applications; and this book will show typical examples of code that exhausts battery life, how to prevent this, and how to measure battery consumption from an application in every kind of situation to ensure your apps don’t drain more than they should. This book explains techniques for building optimized and efficient systems that do not drain the battery, cause memory leaks, or slow down with time.
Table of Contents (17 chapters)
Android High Performance Programming
Credits
About the Authors
About the Reviewer
www.PacktPub.com
Preface
Index

Networking


In Chapter 2, Efficient Debugging, the network tool was introduced, a tool we can use to perform an analysis of the network traffic from our device. We explained how the network connection could be tagged. This ensures that the analysis can be done easily.

The question of how to execute an interpretation of the data in the network tool does not have a single answer, since this interpretation lies in the different requirements an application may have based on its functionality and purpose. However, there are a few golden rules that do generally provide value to our own application if they are well executed:

  • Prefetch data: We tend to have a bias towards prefetching information and do this only on demand. This might be an easier solution, but in the long-term prefetching information can be beneficial. Perform a network analysis, and if you identify a situation where the data could be fetched in a previous situation while being beneficial for the app (for example, downloading some...