Java SE download -> http://www.oracle.com/technetwork/java/javase/downloads/index.html
Update on the new build.gradle dependencies classes com.android.tools.build:gradle:2.0.0 and the experimental com.android.tools.build:gradle-experimental:0.7.0-beta1 in Android Studio 2.0
for the C++ ndk static library build (native_app_glue) with multiple target cpu architectures
The original HelloDroid project file for Android 1.3 is here
or from https://mega.nz/#!iwoHjDiC!dJ45TLYAmCoUYnSOE9H1faYYOSyt5FxfBnmlXeqIRgU
Modifications to the following files are needed for Android Studio 2.0
- app/build.gradle Select all
apply plugin: 'com.android.model.application'
Properties properties = new Properties()
properties.load(project.rootProject.file('local.properties').newDataInputStream())
def ndkFolder = properties.getProperty('ndk.dir')
def projectFolder = file(project.projectDir).absolutePath
model {
android {
compileSdkVersion = 23
buildToolsVersion = '23.0.2'
defaultConfig.with {
applicationId 'com.beginndkgamecode.hellodroid'
minSdkVersion.apiLevel = 9
targetSdkVersion.apiLevel = 23
versionCode = 1
versionName = '1.0'
archivesBaseName = 'HELLODRIOD_' + versionName
}
}
/*
* native build settings
*/
android.ndk {
moduleName = 'hellodroid'
abiFilters.addAll(['armeabi-v7a','x86_64', 'x86'])
// cppFlags.addAll(["-I${file("${ndkFolder}/sources/android/native_app_glue")}".toString()])
ldLibs.addAll(['EGL', 'GLESv2', 'android', 'log'])
}
/*
* dependency library
*/
repositories {
libs(PrebuiltLibraries) {
native_app_glue {
headers.srcDir ndkFolder+"/sources/android/native_app_glue"
binaries.withType(StaticLibraryBinary) {
staticLibraryFile = file("libs/local/${targetPlatform.getName()}/libandroid_native_app_glue.a")
}
}
}
}
// jni is the default dir; config this if yours is in different directory
android.sources {
main {
jni {
source {
srcDirs 'src/main/jni'
}
dependencies {
library 'native_app_glue' linkage 'static'
}
}
}
}
android.buildTypes {
debug {
minifyEnabled = false
zipAlignEnabled = true
ndk.with {
debuggable = true
}
useProguard = false
}
release {
minifyEnabled = false
zipAlignEnabled = true
useProguard = true
proguardFiles.add(file('proguard-rules.txt'))
}
}
android.productFlavors {
// for detailed abiFilter descriptions, refer to "Supported ABIs" @
// https://developer.android.com/ndk/guides/abis.html#sa
create('armeabi-v7a') {
ndk.abiFilters.add('armeabi-v7a')
}
create('x86_64') {
ndk.abiFilters.add('x86_64')
}
create('x86') {
ndk.abiFilters.add('x86')
}
// To include all cpu architectures, leaves abiFilters empty
create('all')
}
}
/*
* task to build static library files using ndk-build.cmd (for windows OS), ndk-build (for Mac)
*/
task staticLibBuild(type: Exec, description: 'Build Static Library files') {
commandLine ndkFolder + '/ndk-build.cmd',
'APP_BUILD_SCRIPT='+ndkFolder+'/sources/android/native_app_glue/Android.mk',
'NDK_APPLICATION_MK='+file(projectDir).absolutePath+'/src/main/jni/Application.mk',
'NDK_PROJECT_PATH='+ndkFolder,
'NDK_OUT='+file(projectDir).absolutePath+'/libs'
}
tasks.withType(CppCompile) {
compileTask -> compileTask.dependsOn staticLibBuild
}
task cleanLibDir(type: Delete) {
delete 'libs'
}
clean.dependsOn cleanLibDir
- app/src/main/jni/Application.mk Select all
APP_PLATFORM := android-9
APP_ABI := armeabi-v7a x86 x86_64
- Project:HelloDroid/build.gradle Select all
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
repositories {
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle-experimental:0.7.0-beta1'
classpath 'com.android.tools.build:gradle:2.0.0'
}
}
allprojects {
repositories {
jcenter()
}
}
HelloBoost, demo of using boost c++ libraries in Android Studio 2.0
a) Download the Android project from https://github.com/donbright/android_hello_boost
b) Download the prebuilt boost libraries for Android from https://github.com/emileb/Boost-for-Android-Prebuilt/ and extract to folder under sdkFolder (see local.properties)
c) Use Android Studio 2.0 menu function to Import Project... from android_hello_boost project and will create new project structure for Android Studio 2.0
d) Modify the app/build.gradle as below
- app/build.gradle Select all
apply plugin: 'com.android.model.application'
Properties properties = new Properties()
properties.load(project.rootProject.file('local.properties').newDataInputStream())
def sdkFolder = properties.getProperty('sdk.dir')
model {
android {
compileSdkVersion = 23
buildToolsVersion = '23.0.3'
defaultConfig {
applicationId = 'com.example.helloboost'
minSdkVersion.apiLevel = 4
targetSdkVersion.apiLevel = 23
versionCode = 1
versionName = '1.0'
archivesBaseName = 'HELLOBOOST_' + versionName
}
/*
* native build settings
*/
ndk {
moduleName = 'hello-boost'
abiFilters.addAll(['armeabi','armeabi-v7a', 'x86'])
cppFlags.addAll(['-Wall', '-fexceptions', '-frtti'])
stl = 'gnustl_static'
}
buildTypes {
debug {
minifyEnabled = false
zipAlignEnabled = true
ndk.with {
debuggable = true
}
useProguard = false
}
release {
minifyEnabled = false
zipAlignEnabled = true
useProguard = true
proguardFiles.add(file('proguard-rules.txt'))
}
}
productFlavors {
// for detailed abiFilter descriptions, refer to "Supported ABIs" @
// https://developer.android.com/ndk/guides/abis.html#sa
create("arm") {
ndk.abiFilters.add("armeabi")
}
create("arm7") {
ndk.abiFilters.add("armeabi-v7a")
}
create("x86") {
ndk.abiFilters.add("x86")
}
// To include all cpu architectures, leaves abiFilters empty
create("all")
}
}
// jni is the default dir; config this if yours is in different directory
android.sources {
main {
jni {
source {
srcDirs 'src/main/jni'
}
dependencies {
library 'boost_program_options' linkage 'static'
library 'boost_thread' linkage 'static'
}
}
}
}
// PrebuiltLibraries
repositories {
libs(PrebuiltLibraries) {
boost_program_options {
headers.srcDir sdkFolder+'/Boost-for-Android-Prebuilt-master/boost_1_53_0/include'
binaries.withType(StaticLibraryBinary) {
staticLibraryFile = file("${sdkFolder}/Boost-for-Android-Prebuilt-master/boost_1_53_0/${targetPlatform.getName()}/lib/libboost_program_options-gcc-mt-1_53.a")
}
}
boost_thread {
headers.srcDir sdkFolder+'/Boost-for-Android-Prebuilt-master/boost_1_53_0/include'
binaries.withType(StaticLibraryBinary) {
staticLibraryFile = file("${sdkFolder}/Boost-for-Android-Prebuilt-master/boost_1_53_0/${targetPlatform.getName()}/lib/libboost_thread-gcc-mt-1_53.a")
}
}
}
}
}- Project:android_hello_boost-master/build.gradle Select all
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
repositories {
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle-experimental:0.7.0-beta1'
}
}
allprojects {
repositories {
jcenter()
}
}
ATTENTION: Android Studio 2.2 supports NDK build
Android Studio 2.2.2 HelloDroid External Build Files using Android.mk & Application.mk
- app/build.gradle Select all
apply plugin: 'com.android.application'
android {
compileSdkVersion 23
buildToolsVersion '23.0.3'
defaultConfig {
applicationId 'com.beginndkgamecode.hellodroid'
minSdkVersion 9
targetSdkVersion 23
versionCode 1
versionName "1.0"
archivesBaseName = 'HELLODRIOD_' + versionName
ndk {
abiFilters 'armeabi-v7a', 'x86', 'x86_64'
}
externalNativeBuild {
ndkBuild {
arguments "NDK_APPLICATION_MK=src/main/jni/Application.mk"
}
}
}
buildTypes {
debug {
minifyEnabled false
zipAlignEnabled true
debuggable true
useProguard false
}
release {
minifyEnabled false
zipAlignEnabled true
useProguard true
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
externalNativeBuild {
ndkBuild {
path "src/main/jni/Android.mk"
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:25.0.0'
compile 'com.android.support.constraint:constraint-layout:1.0.0-beta2'
}
- Project:HelloDroid/build.gradle Select all
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
repositories {
jcenter()
}
dependencies {
//classpath 'com.android.tools.build:gradle-experimental:0.7.0-beta1'
//classpath 'com.android.tools.build:gradle:2.2.0-alpha3'
classpath 'com.android.tools.build:gradle:2.2.2'
}
}
allprojects {
repositories {
jcenter()
}
}
- gradle-wrapper.properties Select all
distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists
#distributionUrl=https\://services.gradle.org/distributions/gradle-2.10-all.zip
distributionUrl=https\://services.gradle.org/distributions/gradle-2.14.1-all.zip
Android Studio 2.2.2 HelloBoost External Build Files using Android.mk & Application.mk
HelloBoost, demo of using boost c++ libraries in Android Studio 2.2.2
After the download, import and setup as HelloBoost for Android Studio 2.0 above, modify build.gradle, Android.mk and Application.mk as below
- app/build.gradle Select all
apply plugin: 'com.android.application'
Properties properties = new Properties()
properties.load(project.rootProject.file('local.properties').newDataInputStream())
def sdkFolder = properties.getProperty('sdk.dir')
def ndkFolder = properties.getProperty('ndk.dir')
android {
compileSdkVersion 23
buildToolsVersion "23.0.3"
defaultConfig {
applicationId "com.example.helloboost"
minSdkVersion 3
targetSdkVersion 23
versionCode = 1
versionName = '1.0'
archivesBaseName = 'HELLOBOOST_' + versionName
ndk {
moduleName "hello-boost"
abiFilters 'armeabi','armeabi-v7a', 'x86'
}
externalNativeBuild {
ndkBuild {
arguments "NDK_APPLICATION_MK=src/main/jni/Application.mk",
"NDK_MODULE_PATH=${sdkFolder}/Boost-for-Android-Prebuilt"
// default module search path is at ${ndkFolder}/sources
}
}
}
buildTypes {
debug {
minifyEnabled false
zipAlignEnabled true
debuggable true
useProguard false
}
release {
minifyEnabled false
zipAlignEnabled true
useProguard true
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
}
}
externalNativeBuild {
ndkBuild {
path "src/main/jni/Android.mk"
}
}
}
- app/src/main/jni/Android.mk Select all
LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE := hello-boost
LOCAL_SRC_FILES := hello-boost.cpp first.cpp
LOCAL_STATIC_LIBRARIES := libboost_thread libboost_program_options
include $(BUILD_SHARED_LIBRARY)
$(call import-module, boost_1_53_0)
- app/src/main/jni/Application.mk Select all
APP_STL = gnustl_static
APP_CPPFLAGS = -Wall -fexceptions -frtti
APP_CPPFLAGS += -I$(NDK_MODULE_PATH)/boost_1_53_0/include
#It is recommended to add these two variables for each LOCAL_MODULE in boost_1_53_0/Android.mk rather than modifying the Application.mk for the app
#LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/include
#LOCAL_CPP_FEATURES := rtti exceptions
- boost_1_53_0/Android.mk Select all
...
include $(CLEAR_VARS)
LOCAL_MODULE := libboost_program_options
LOCAL_SRC_FILES := $(TARGET_ARCH_ABI)/lib/libboost_program_options-gcc-mt-1_53.a
LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/include
LOCAL_CPP_FEATURES := rtti exceptions
include $(PREBUILT_STATIC_LIBRARY)
...
include $(CLEAR_VARS)
LOCAL_MODULE := libboost_thread
LOCAL_SRC_FILES := $(TARGET_ARCH_ABI)/lib/libboost_thread-gcc-mt-1_53.a
LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/include
LOCAL_CPP_FEATURES := rtti exceptions
include $(PREBUILT_STATIC_LIBRARY)
...HelloJNI, sample of CMakeLists.txt after adding Boost libraries
Assume boost prebuilt libraries are installed to ~/Library/Android/sdk/ndk-bundle/sources/Boost-for-Android-Prebuilt
- CMakeLists.txt Select all
cmake_minimum_required(VERSION 3.4.1)
# build native_app_glue as a static lib
add_library(app-glue STATIC
${ANDROID_NDK}/sources/android/native_app_glue/android_native_app_glue.c)
# now build app's shared lib
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=gnu++11")
add_library(hello-jni SHARED
hello-jni.c)
#BOOST
set(Boost_INCLUDE_DIR ${ANDROID_NDK}/sources/Boost-for-Android-Prebuilt/boost_1_53_0/include)
set(Boost_LIBRARY_DIR ${ANDROID_NDK}/sources/Boost-for-Android-Prebuilt/boost_1_53_0/${ANDROID_ABI}/lib)
set(Boost_USE_STATIC_LIBS ON) # only find static libs
set(Boost_USE_MULTITHREADED ON)
set(Boost_USE_STATIC_RUNTIME OFF)
set(Boost_COMPILER -gcc)
find_package(Boost COMPONENTS thread program_options REQUIRED)
#BOOSTEND
if(Boost_FOUND)
# Include libraries needed
include_directories(${Boost_INCLUDE_DIR})
target_link_libraries(hello-jni
android
app-glue
log
${Boost_LIBRARIES})
endif()
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