AndroidStudio中使用NDK编译器笔记

使用的AndroidStudio版本是1.3.2，可以支持自动构建NDK，需要做一些配置：

 

1.工程的local.properties里添加ndk路径：

## This file is automatically generated by Android Studio.
# Do not modify this file -- YOUR CHANGES WILL BE ERASED!
#
# This file must *NOT* be checked into Version Control Systems,
# as it contains information specific to your local configuration.
#
# Location of the SDK. This is only used by Gradle.
# For customization when using a Version Control System, please read the
# header note.
#Tue Sep 15 17:59:20 CST 2015
ndk.dir=/Users/songjia/software/android-ndk-r10e
sdk.dir=/Users/songjia/software/android-sdk

 

2.在需要使用本地代码的模块中添加jni目录和需要的源文件，头文件；

 不需要再手动编写Android.mk编译文件，会自动生成的。

3.在模块的build.gradle中添加ndk配置项：

apply plugin: 'com.android.library'

android {
    compileSdkVersion 22
    buildToolsVersion "23.0.0"

    defaultConfig {
        minSdkVersion 14
        targetSdkVersion 22
        versionCode 1
        versionName "1.0"
        ndk{
            //模块名
            moduleName 'ndkdemo'
            //目标平台
            abiFilters 'armeabi','armeabi-v7a'
            //链接库文件
            ldLibs 'log'
        }
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
}

4.新版AndroidStudio要在项目的gradle.properties添加一句 ：

# Project-wide Gradle settings.

# IDE (e.g. Android Studio) users:
# Gradle settings configured through the IDE *will override*
# any settings specified in this file.

# For more details on how to configure your build environment visit
# http://www.gradle.org/docs/current/userguide/build_environment.html

# Specifies the JVM arguments used for the daemon process.
# The setting is particularly useful for tweaking memory settings.
# Default value: -Xmx10248m -XX:MaxPermSize=256m
# org.gradle.jvmargs=-Xmx2048m -XX:MaxPermSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8

# When configured, Gradle will run in incubating parallel mode.
# This option should only be used with decoupled projects. More details, visit
# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
# org.gradle.parallel=true

# 使用废弃的NDK
android.useDeprecatedNdk=true

 没有报错的话就可以编译成功了