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Android High Performance Programming

You're reading from   Android High Performance Programming Build fast and efficient Android apps that run as reliably as clockwork in a multi-device world

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Product type Paperback
Published in Aug 2016
Publisher Packt
ISBN-13 9781785288951
Length 412 pages
Edition 1st Edition
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Authors (2):
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Enrique López Mañas Enrique López Mañas
Author Profile Icon Enrique López Mañas
Enrique López Mañas
Diego Grancini Diego Grancini
Author Profile Icon Diego Grancini
Diego Grancini
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Table of Contents (12) Chapters Close

Preface 1. Introduction: Why High Performance? FREE CHAPTER 2. Efficient Debugging 3. Building Layouts 4. Memory 5. Multithreading 6. Networking 7. Security 8. Optimizing Battery Consumption 9. Native Coding in Android 10. Performance Tips Index

Native Development Kit or how to develop with native code when needed

Using Native Development Kit (NDK) can mean sometimes the difference between a performing application or an application that just does its job. We will generally use NDK in the following contexts:

  • Use of existing C/C++ libraries: This is an obvious advantage, since you have access to powerful existing software such as OpenCV1, audio encoders, and so on.
  • Performance: For some critical inner loops, the marginal performance advantage of C/C++ over Java, especially before Just-In-Time compilation (JIT) is available in the Android compiler, may be a deciding factor.
  • To do something that the NDK allows that the Java API can't manage: Low-level operations close to the hardware, particularly to impact manufacturer-specific hardware, might only be possible through C/C++.
  • Obfuscation: Compiled code is somehow more difficult to reverse-engineer than Java bytecode. Security by obscurity is, however, not the ideal solution, but it can complement your already existing system.
You have been reading a chapter from
Android High Performance Programming
Published in: Aug 2016
Publisher: Packt
ISBN-13: 9781785288951
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