Android_NDK

Android NDK

Android NDK

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The Android Native Development Kit (NDK) provides a cross-compiling tool for compiling code written in C/C++ can be compiled to ARM, or x86 native code (or their 64-bit variants) for Android.[4][5] The NDK uses the Clang compiler to compile C/C++. GCC was included until NDK r17, but removed in r18 in 2018.

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Overview

Native libraries can be called from Java code running under the Android Runtime using System.loadLibrary, part of the standard Android Java classes.[6][7]

Command-line tools can be compiled with the NDK and installed using adb.[8]

Android uses Bionic as its C library, and the LLVM libc++ as its C++ Standard Library. The NDK also includes a variety of other APIs:[9] zlib compression, OpenGL ES or Vulkan graphics, OpenSL ES audio, and various Android-specific APIs for things like logging, access to cameras, or accelerating neural networks.

The NDK includes support for CMake and its own ndk-build (based on GNU Make). Android Studio supports running either of these from Gradle. Other third-party tools allow integrating the NDK into Eclipse[10] and Visual Studio.[11]

For CPU profiling, the NDK also includes simpleperf[12] which is similar to the Linux perf tool, but with better support for Android and specifically for mixed Java/C++ stacks.

References

  1. [1]
    "Android NDK | Android Developers". Developer.android.com. November 13, 2012. Retrieved March 13, 2014.
  2. [2]
    "Release NDK r26c · android/ndk". Retrieved 31 March 2024.
  3. [3]
    "NDK Downloads | Android Developers". developer.android.com. Retrieved 2018-04-24.
  4. [4]
    Ratabouil, Sylvain (2015). Android NDK beginner's guide : discover the native side of Android and inject the power of C/C++ in your applications (2nd ed.). Birmingham. ISBN 978-1-78398-965-2. OCLC 910639612.{{cite book}}: CS1 maint: location missing publisher (link)
  5. [5]
    Kosarevsky, Sergey (2013). Android NDK game development cookbook : over 70 exciting recipes to help you develop mobile games for Android in C++. Viktor Latypov. Birmingham. ISBN 978-1-78216-779-2. OCLC 880639342.{{cite book}}: CS1 maint: location missing publisher (link)
  6. [6]
    Srinivas, Davanum (December 9, 2007). "Android — Invoke JNI based methods (Bridging C/C++ and Java)". Archived from the original on December 16, 2008. Retrieved December 13, 2008.
  7. [7]
    "java.lang.System". Android Developers. Retrieved September 3, 2009.
  8. [8]
    "Android Debug Bridge (adb)".
  9. [9]
    "Android NDK Native APIs | Android NDK".
  10. [10]
    "Using Eclipse for Android C/C++ Development". January 23, 2011.
  11. [11]
    "Using Visual Studio to Develop Native Android Code – VisualGDB Tutorials".
  12. [12]
    "Simpleperf | Android NDK".
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