- OSX host
- Android r9c NDK (for building app)
- Android ADT Bundle (for running app)
- Ant
First install ant:
brew install ant
Setup the NDK and environment for cross-compiling against NDK:
curl -O http://dl.google.com/android/ndk/android-ndk-r9c-darwin-x86_64.tar.bz2
tar -xf android-ndk-r9c-darwin-x86_64.tar.bz2
export NDK_PATH=$(pwd)/android-ndk-r9c
# see all API levels at $NDK_PATH/platforms/
export API_LEVEL="android-19"
# see all compiler options at $NDK_PATH/toolchains/
export ANDROID_CROSS_COMPILER="arm-linux-androideabi-clang3.3"
export PLATFORM_PREFIX="${NDK_PATH}/active-platform/"
# NOTE: make-standalone-toolchain.sh --help for options
"${NDK_PATH}/build/tools/make-standalone-toolchain.sh" \
--toolchain="${ANDROID_CROSS_COMPILER}" \
--install-dir="${PLATFORM_PREFIX}" \
--stl=gnustl \
--arch=arm \
--platform="${API_LEVEL}"
Setup the ADK:
curl -O http://dl.google.com/android/adt/adt-bundle-mac-x86_64-20131030.zip
unzip adt-bundle-mac-x86_64-20131030.zip
ADT_BUNDLE="$(pwd)/adt-bundle-mac-x86_64-20131030"
export PATH="${ADT_BUNDLE}/sdk/tools:${ADT_BUNDLE}/sdk/platform-tools":${PATH}
Now build the JNI app:
cd hello-android-ndk/app
$NDK_PATH/ndk-build
# create a build.xml
$ADT_BUNDLE/sdk/tools/android update project -p ./ --target 1 --subprojects
ant debug
# list available a virtual devices
$ADT_BUNDLE/sdk/tools/android list avd
# create a virtual device named 'Phone'
$ADT_BUNDLE/sdk/tools/android create avd -n Phone -t 1
# in another terminal start the simulator
# be prepared to wait a while for it to start up
$ADT_BUNDLE/sdk/tools/emulator @Phone & $ADT_BUNDLE/sdk/tools/ddms
# then back in the main terminal install to test on the app
# Note: this will not work until the emulator is fully running
$ADT_BUNDLE/sdk/platform-tools/adb install -r bin/MainActivity-debug.apk
TODO: describe cross compiling external library
#alias ldd="arm-linux-androideabi-readelf -d "
#export PATH="${PLATFORM_PREFIX}/bin":${PATH}
#export CXX="arm-linux-androideabi-g++"
#export CC="arm-linux-androideabi-gcc"
#export LD="arm-linux-androideabi-ld"
#export AR="arm-linux-androideabi-ar"
#export RANLIB="arm-linux-androideabi-ranlib"
# TODO - some builds hardcode libtool which breaks since os x version is used (zlib)
#alias libtool="arm-linux-androideabi-ar cru"
#export libtool="arm-linux-androideabi-ar cru"
#export NM="arm-linux-androideabi-nm"