本文目录
1、Android NDK下载：(内含ndk-build)
https://developer.android.google.cn/ndk/downloads/
http://www.voidcn.com/article/p-fjfskgpc-bph.html
https://developer.android.google.cn/ndk/guides/stable_apis#purpose
2、Android平台通用编译环境
2.1、Linux下编译Android程序（shell脚本）
#!/bin/bash
if [ $# -ne 1]; then
echo "./build.sh ndk_dir"
exit
fi
# get current dir
PJTDIR=$(pwd)
#check if we are in the ndk directory
cd $1
if [ ! -f "ndk-build"]; then
echo "Run this script under NDK directory\n"
exit
fi
echo "------------------------clear output dir-------------------------"
find $PJTDIR/obj -name "*.[od]" | xargs rm -rf
find $PJTDIR/obj -name "*.so" | xargs rm -rf
find $PJTDIR/libs -name "*.so" | xargs rm -rf
find $PJTDIR/out -name "*.so" | xargs rm -rf
find $PJTDIR/obj -name "*.[od]" | xargs rm -rf
find $PJTDIR/obj -name "*.a" | xargs rm -rf
find $PJTDIR/libs -name "*.a" | xargs rm -rf
find $PJTDIR/out -name "*.a" | xargs rm -rf
echo "------------------------build static library----------------------"
#cp $PJRDOR/jni/Android_lib.mk $PJRLIB/jni/Android.mk
./ndk-build -B -C $PJTDIR APP_BUILD_SCRIPT:=Android_lib.mk
cp $PJTDIR/obj/local/armeabi/libxxx.a $PJTDIR/out/armeabi/
cp $PJTDIR/obj/local/armeabi-v7a/libxxx.a $PJTDIR/out/armeabi-v7a/
cp $PJTDIR/obj/local/arm64-v8a/libxxx.a $PJTDIR/out/arm64-v8a/
cp $PJTDIR/obj/local/x86/libxxx.a $PJTDIR/out/x86/
cp $PJTDIR/obj/local/x86_64/libxxx.a $PJTDIR/out/x86_64/
cp $PJTDIR/obj/local/mips/libxxx.a $PJTDIR/out/mips/
cp $PJTDIR/obj/local/mips64/libxxx.a $PJTDIR/out/mips64/
echo "------------------------build dynamic library----------------------"
#cp $PJRDOR/jni/Android_lib.mk $PJRLIB/jni/Android.mk
./ndk-build -B -C $PJTDIR APP_BUILD_SCRIPT:=Android_lib.mk
cp $PJTDIR/obj/local/armeabi/libxxx.so $PJTDIR/out/armeabi/
cp $PJTDIR/obj/local/armeabi-v7a/libxxx.so $PJTDIR/out/armeabi-v7a/
cp $PJTDIR/obj/local/arm64-v8a/libxxx.so $PJTDIR/out/arm64-v8a/
cp $PJTDIR/obj/local/x86/libxxx.so $PJTDIR/out/x86/
cp $PJTDIR/obj/local/x86_64/libxxx.so $PJTDIR/out/x86_64/
cp $PJTDIR/obj/local/mips/libxxx.so $PJTDIR/out/mips/
cp $PJTDIR/obj/local/mips64/libxxx.so $PJTDIR/out/mips64/
echo "------------------------build dynamic executable----------------------"
#cp $PJRDOR/jni/Android_app.mk $PJRLIB/jni/Android.mk
./ndk-build -B -C $PJTDIR APP_BUILD_SCRIPT:=Android_app.mk
cp $PJTDIR/obj/local/armeabi/xxx $PJTDIR/out/armeabi/
cp $PJTDIR/obj/local/armeabi-v7a/xxx $PJTDIR/out/armeabi-v7a/
cp $PJTDIR/obj/local/arm64-v8a/xxx $PJTDIR/out/arm64-v8a/
cp $PJTDIR/obj/local/x86/xxx $PJTDIR/out/x86/
cp $PJTDIR/obj/local/x86_64/xxx $PJTDIR/out/x86_64/
cp $PJTDIR/obj/local/mips/xxx $PJTDIR/out/mips/
cp $PJTDIR/obj/local/mips64/xxx $PJTDIR/out/mips64/
echo "------------------------build static executable----------------------"
#cp $PJRDOR/jni/Android_app_static.mk $PJRLIB/jni/Android.mk
./ndk-build -B -C $PJTDIR APP_BUILD_SCRIPT:=Android_app_static.mk
cp $PJTDIR/obj/local/armeabi/xxx $PJTDIR/out/armeabi/
cp $PJTDIR/obj/local/armeabi-v7a/xxx $PJTDIR/out/armeabi-v7a/
cp $PJTDIR/obj/local/arm64-v8a/xxx $PJTDIR/out/arm64-v8a/
cp $PJTDIR/obj/local/x86/xxx $PJTDIR/out/x86/
cp $PJTDIR/obj/local/x86_64/xxx $PJTDIR/out/x86_64/
cp $PJTDIR/obj/local/mips/xxx $PJTDIR/out/mips/
cp $PJTDIR/obj/local/mips64/xxx $PJTDIR/out/mips64/
echo "------------------------tar---------------------"
tar -zcvf $PJTDIR/out/libxxx_android_armeabi.tar.gz -C $PJTDIR/out/armeabi/
tar -zcvf $PJTDIR/out/libxxx_android_armeabi-v7a.tar.gz -C $PJTDIR/out/armeabi-v7a/
tar -zcvf $PJTDIR/out/libxxx_android_arm64-v8a.tar.gz -C $PJTDIR/out/arm64-v8a/
tar -zcvf $PJTDIR/out/libxxx_android_x86.tar.gz -C $PJTDIR/out/x86/
tar -zcvf $PJTDIR/out/libxxx_android_x86_64.tar.gz -C $PJTDIR/out/x86_64/
tar -zcvf $PJTDIR/out/libxxx_android_mips.tar.gz -C $PJTDIR/out/mips/
tar -zcvf $PJTDIR/out/libxxx_android_mips64.tar.gz -C $PJTDIR/out/mips64/
echo "------------------------check results---------------------"
ls -l $PJTDIR/out
ls -l $PJTDIR/armeabi
ls -l $PJTDIR/armeabi-v7a
ls -l $PJTDIR/arm64-v8a
ls -l $PJTDIR/x86
ls -l $PJTDIR/x86-64
ls -l $PJTDIR/mips
ls -l $PJTDIR/mips-64其中：核心命令为：./ndk-build -B -C $PJTDIR APP_BUILD_SCRIPT:=Android_lib.mk
其中，-B表示强制rebuild，-C表示Android.mk和Application.mk两个文件夹所在路径，就是指定makefile的路径，与linux中make -C dir是同一个含义，APP_BUILD_SCRIPT用于指定编译的makefile，同linux中的make -f makefile，NDK_PROJECT_PATH用于指定makefile的路径。
注意：
1、无论是编译动态库、静态库还是可执行文件，都需要各自对应的Android.mk和Application.mk这两个文件。
2、Application.mk通常用于指定需要编译的平台的个数，比如
APP_ABI := x86 x86_64 armeabi armeabi-v7a arm64-v8a
APP_PLATFORM := android-9
NDK_TOOLCHAIN_VERSION := 4.9
3、Android.mk相当于被Applicatioin.mk调用的，即每个平台都会调用一次Android.mk产生一个相应平台的编译出来的模块。
不同 CPU 和架构的 ABI 设置如下表所示：
| CPU 和架构 | 设置 |
|---|---|
| ARMv5TE | armeabi |
| ARMv7 | armeabi-v7a |
| ARMv8 AArch64 | arm64-v8a |
| i686 | x86 |
| x86-64 | x86_64 |
| mips32 (r1) | mips |
| mips64 (r6) | mips64 |
| 全部 | all |
2.2、Window下编译Android程序（Python脚本）
在没有shell环境情况下，采用windows环境下的python脚本：
//cmd="ndk-build -B -C ./ NDK_PROJECT_PATH=./ APP_BUILD_SCRIPT=./Android.mk"
#coding=utf8
import os
import sys
import glob
import shutil
import platform
from sys import argv
share_lib_name = 'libxxx.so'
static_lib_name = 'libxxx.a'
static_exe = 'demo'
#检查是否为windows系统
def isWindowsSys():
return 'Windows' in platform.system()
#检查是否为Linux系统
def isLinuxSys():
return 'Linux' in platform.system()
#清空目录下的内容
def delDirFile(path):
def i in os.listdir(path):
file_path = os.path.join(path, i)
if os.path.isfile(file_path):
os.remove(file_path)
else
delDirFile(file_path)
def process(ndk_dir, android_dir, pure_c, delimiter):
ndk_build = ndk_dir + delimiter + 'ndk-build'
app_mk = android_dir + delimiter + 'jni' + delimiter + 'Application.mk'
mk_dir = android_dir + delimiter + 'jni'
static_lib_dir = android_dir + delimiter + 'obj' + delimiter + 'local' + delimiter
out_sha_lib = android_dir + delimiter + 'out' + delimiter
share_lib_dir = android_dir + delimiter + 'obj' + delimiter + 'local' + delimiter
out_sta_lib = android_dir + delimiter + 'out' + delimiter
if isWindowsSys():
cpy = "copy "
else:
cpy = "cp "
# "=================CLEAR OUTPUT DIR========================="
outdir_files = glob.glob(android_dir + delimiter + 'out' + delimiter + '*')
for outdir in outdir_files:
print(outdir)
delDelFile(outdir)
isExist = os.path.exists(ourdir)
if(not isExist):
os.mkdir(outdir)
pFile = open(app_mk, 'w')
cmd = 'APP_ABI := x86 x86_64 armeabi armeabi-v7a arm64-v8a \nAPP_PLATFORM := android-9\nNDK_TOOLCHAIN_VERSION := 4.9'
pFile.writeLines(cmd)
pFile.write('\n')
pFile.close()
# "==================BUILD SHARED LIBRARY===================="
cmd = ndk_build + " -B " + "NDK_PROJECT_PATH:=" + android_dir + "APP_BUILD_SCRIPT:=" + mk_dir + delimiter + "Android_lib.mk" + " V=1 SHARED=0"
print(cmd)
os.system(cmd)
cmd = cpy + share_lib_dir + "x86" + delimiter + share_lib_name + " " + out_sha_lib + "x86" + delimiter
print(cmd)
os.system(cmd)
##其他平台依次类推
# "==================BUILD STATIC LIBRARY===================="
cmd = ndk_build + " -B " + "NDK_PROJECT_PATH:=" + android_dir + "APP_BUILD_SCRIPT:=" + mk_dir + delimiter + "Android_lib.mk"
print(cmd)
os.system(cmd)
cmd = cpy + static_lib_dir + "x86" + delimiter + static_lib_name + " " + out_sta_lib + "x86" + delimiter
print(cmd)
os.system(cmd)
##其他平台依次类推
# "==================BUILD STATIC EXE ===================="
cmd = ndk_build + " -B " + "NDK_PROJECT_PATH:=" + android_dir + "APP_BUILD_SCRIPT:=" + mk_dir + delimiter + "Android_app.mk"
print(cmd)
os.system(cmd)
cmd = cpy + static_lib_dir + "x86" + delimiter + static_lib_name + " " + out_sta_lib + "x86" + delimiter
print(cmd)
os.system(cmd)
##其他平台依次类推
##############################main函数入口######################
if __name__ == '__main__':
if(len(argv) < 3):
printf("Tips: build_android.py android_ndk_dir pure_c=0/1\n")
exit()
delimiter =os.path.sep
ndk_dir = argv[1]
pure_c = argv[2]
android_dir = os.getcwd()
process(ndkdir,android_dir,pure_c,delimiter)
3、Android平台真机测试方法
4、Android平台通用编译模板
5、参考
关于Application.mk,Android.mk和JNI的介绍更多可参考：
https://developer.android.google.cn/ndk/guides/android_mk
https://developer.android.google.cn/ndk/guides/application_mk
https://developer.android.google.cn/ndk/guides/ndk-build
https://www.ibm.com/developerworks/cn/opensource/os-cn-android-build/
https://blog.csdn.net/yuanjize1996/article/details/54376228
https://blog.csdn.net/xyz_lmn/article/details/6966259/
THE END！
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