之前写的有点过于简洁了，而且官方版本项目也已经更新了一些，改也不好改，这里干脆做个详细一点的版本。
0.准备
- 项目地址：GitHub
- JDK 1.8
- Go 1.11+
- Android SDK 、Android NDK r19+
本人环境为：系统macOS 10.14.2 mojave，AndroidStudio版本3.2.1，gradle版本4.10.2-all，go随便用的1.11.4，其他直接用项目默认的配置。然而最近的版本默认使用的是gradle5.0版本，与我的AndroidStudio 3.2.1 不兼容，会导致报错。
1.Android环境
JDK 单独下载安装，AndroidStudio安装好后顺便下好Android SDK。NDK r19 beta可以到这里下载，解压即可。
2.go环境
因为需要go 1.11以上，所以本人重新用brew安装/升级了一遍go，Windows系统或者Linux的也只需要按照golang官方指南，或者用相关的包管理器来安装。然后配置一下环境变量。
#1 brew 安装go brew install go #2 配置环境变量，用户目录下的.bash_profile，可以用vim，也可以用编辑器改 cd ~ vim .bash_profile #3 配置类似下面的内容，根据自己的情况设置安装目录GOROOT和GOPATH export GOROOT=/usr/local/Cellar/go/1.11.4/libexec export GOPATH=~/go export GOBIN=/usr/local/opt/go/libexec/bin export PATH=$PATH:$GOBIN #4 保存，命令行生效 source .bash_profile #5 查看go版本和环境 go version go env
3.go无法下载的依赖
由于限制问题，国内使用、安装 golang 官方包可能会失败，使用 golang 在 github 上建立的一个镜像库 ，这里主要将net、sys、crypto、text包clone下来到GOPATH中使用，还需要对应go版本，默认是最新版1.11，如果需要匹配不同的版本，则可以clone不同的版本分支。
#在GOPATH在创建目录 mkdir -p $GOPATH/src/golang.org/x cd $GOPATH/src/golang.org/x #下载依赖 git clone https://github.com/golang/net.git git clone https://github.com/golang/sys.git git clone https://github.com/golang/crypto.git git clone https://github.com/golang/text.git
4.修改core的GOPATH
之前的版本还有一个自定义GOPATH字段 GOROOT_BOOTSTRAP，后面的一些提交后移除了：remove custom go 。
项目的默认GOPATH是core模块下，如果不改项目的GOPATH，可以将上面第三步的依赖下载到core/src/overture/src/(golang.org/x/...)，这里还是改成自定义的GOPATH。
# shadowsocks-android/core/src/overture/make.bash 16行
# 改成自己的GOPATH
# export GOPATH=$DIR #注释或者删除这一行
export GOPATH = ${GOROOT} #新增自己的路径
1.下载源码
可以直接连同子模块一起clone：
git clone --recurse-submodules https://github.com/shadowsocks/shadowsocks-android.git
也可以分两步，先clone主项目，再update submodules
#1 clone主项目 git clone https://github.com/shadowsocks/shadowsocks-android.git #输出： Cloning into 'shadowsocks-android'... remote: Enumerating objects: 80, done. remote: Counting objects: 100% (80/80), done. remote: Compressing objects: 100% (43/43), done. remote: Total 31509 (delta 28), reused 58 (delta 20), pack-reused 31429 Receiving objects: 100% (31509/31509), 51.33 MiB | 708.00 KiB/s, done. Resolving deltas: 100% (15110/15110), done. #2 进入项目目录 cd shadowsocks-android #3 更新submodule git submodule update --init --recursive #输出 Submodule 'core/src/main/jni/badvpn' (https://github.com/shadowsocks/badvpn.git) registered for path 'core/src/main/jni/badvpn' Submodule 'core/src/main/jni/libancillary' (https://github.com/shadowsocks/libancillary.git) registered for path 'core/src/main/jni/libancillary' Submodule 'core/src/main/jni/libev' (https://github.com/shadowsocks/libev.git) registered for path 'core/src/main/jni/libev' Submodule 'core/src/main/jni/libevent' (https://github.com/shadowsocks/libevent.git) registered for path 'core/src/main/jni/libevent' Submodule 'core/src/main/jni/libsodium' (https://github.com/jedisct1/libsodium.git) registered for path 'core/src/main/jni/libsodium' Submodule 'core/src/main/jni/mbedtls' (https://github.com/ARMmbed/mbedtls) registered for path 'core/src/main/jni/mbedtls' Submodule 'core/src/main/jni/pcre' (https://android.googlesource.com/platform/external/pcre) registered for path 'core/src/main/jni/pcre' Submodule 'core/src/main/jni/redsocks' (https://github.com/shadowsocks/redsocks.git) registered for path 'core/src/main/jni/redsocks' Submodule 'core/src/main/jni/shadowsocks-libev' (https://github.com/shadowsocks/shadowsocks-libev) registered for path 'core/src/main/jni/shadowsocks-libev' Submodule 'core/src/overture/src/github.com/shadowsocks/overture' (https://github.com/shadowsocks/overture.git) registered for path 'core/src/overture/src/github.com/shadowsocks/overture' Cloning into '/Users/water/Desktop/git/android/shadowsocks-android-20181230/shadowsocks-android/core/src/main/jni/badvpn'... Cloning into '/Users/water/Desktop/git/android/shadowsocks-android-20181230/shadowsocks-android/core/src/main/jni/libancillary'... Cloning into '/Users/water/Desktop/git/android/shadowsocks-android-20181230/shadowsocks-android/core/src/main/jni/libev'... Cloning into '/Users/water/Desktop/git/android/shadowsocks-android-20181230/shadowsocks-android/core/src/main/jni/libevent'... Cloning into '/Users/water/Desktop/git/android/shadowsocks-android-20181230/shadowsocks-android/core/src/main/jni/libsodium'... Cloning into '/Users/water/Desktop/git/android/shadowsocks-android-20181230/shadowsocks-android/core/src/main/jni/mbedtls'... Cloning into '/Users/water/Desktop/git/android/shadowsocks-android-20181230/shadowsocks-android/core/src/main/jni/pcre'... Cloning into '/Users/water/Desktop/git/android/shadowsocks-android-20181230/shadowsocks-android/core/src/main/jni/redsocks'... Cloning into '/Users/water/Desktop/git/android/shadowsocks-android-20181230/shadowsocks-android/core/src/main/jni/shadowsocks-libev'... Cloning into '/Users/water/Desktop/git/android/shadowsocks-android-20181230/shadowsocks-android/core/src/overture/src/github.com/shadowsocks/overture'... Submodule path 'core/src/main/jni/badvpn': checked out '4c0050878618423da53e7e335fbb55ec2af6be06' Submodule path 'core/src/main/jni/libancillary': checked out '311e5d14f593f16c785bc6605220517eb1f21f6b' Submodule path 'core/src/main/jni/libev': checked out '5213419011ec5de302f8bc1716f348de1fb53b12' Submodule path 'core/src/main/jni/libevent': checked out 'f29f07bc8c43eec96f227e6f6eede32b3af66168' Submodule path 'core/src/main/jni/libsodium': checked out 'fec4c92d81189e0394ad94e14f238a837c81385e' Submodule path 'core/src/main/jni/mbedtls': checked out '4f0929189ab43e020b0d441919abf6bab02baf11' Submodule path 'core/src/main/jni/pcre': checked out '222bbf4b3fb8e13c21686803e47e31aa3e4ad130' Submodule path 'core/src/main/jni/redsocks': checked out '274334f14839431ae003774d99c3d1de337afff4' Submodule path 'core/src/main/jni/shadowsocks-libev': checked out '91222766e793a6d1516ac066984b63069594e0bf' Submodule 'libbloom' (https://github.com/shadowsocks/libbloom.git) registered for path 'core/src/main/jni/shadowsocks-libev/libbloom' Submodule 'libcork' (https://github.com/shadowsocks/libcork.git) registered for path 'core/src/main/jni/shadowsocks-libev/libcork' Submodule 'libipset' (https://github.com/shadowsocks/ipset.git) registered for path 'core/src/main/jni/shadowsocks-libev/libipset' Cloning into '/Users/water/Desktop/git/android/shadowsocks-android-20181230/shadowsocks-android/core/src/main/jni/shadowsocks-libev/libbloom'... Cloning into '/Users/water/Desktop/git/android/shadowsocks-android-20181230/shadowsocks-android/core/src/main/jni/shadowsocks-libev/libcork'... Cloning into '/Users/water/Desktop/git/android/shadowsocks-android-20181230/shadowsocks-android/core/src/main/jni/shadowsocks-libev/libipset'... Submodule path 'core/src/main/jni/shadowsocks-libev/libbloom': checked out '7a9deb893fc1646c0b9186b50d46358379953d4b' Submodule path 'core/src/main/jni/shadowsocks-libev/libcork': checked out '8e37949dccae43bc9045bffea97fa6ac4e0305ce' Submodule path 'core/src/main/jni/shadowsocks-libev/libipset': checked out '3ea7fe30adf4b39b27d932e5a70a2ddce4adb508' Submodule path 'core/src/overture/src/github.com/shadowsocks/overture': checked out 'ffc00f97fa7663a91011a10e46ae954cfda3837f'
2.编译core
编译有2种方式，本质是一样的，一种是在terminal里面执行：
#指定编译core模块 ./gradlew -p core clean build
另一种则是使用AndroidStudio插件的快捷菜单：
#省略一大堆日志 10 warnings generated. 13 warnings generated. [armeabi-v7a] Executable : libtun2socks.so Build redsocks armeabi-v7a [armeabi-v7a] Compile thumb : redsocks <= base.c [armeabi-v7a] Compile thumb : redsocks <= http-connect.c [armeabi-v7a] Compile thumb : redsocks <= log.c [armeabi-v7a] Compile thumb : redsocks <= md5.c [armeabi-v7a] Compile thumb : redsocks <= socks5.c [armeabi-v7a] Compile thumb : redsocks <= base64.c [armeabi-v7a] Compile thumb : redsocks <= http-auth.c [armeabi-v7a] Compile thumb : redsocks <= http-relay.c [armeabi-v7a] Compile thumb : redsocks <= main.c [armeabi-v7a] Compile thumb : redsocks <= parser.c [armeabi-v7a] Compile thumb : redsocks <= redsocks.c [armeabi-v7a] Compile thumb : redsocks <= socks4.c [armeabi-v7a] Compile thumb : redsocks <= utils.c [armeabi-v7a] Compile thumb : event <= buffer.c [armeabi-v7a] Compile thumb : event <= bufferevent.c [armeabi-v7a] Compile thumb : event <= event.c [armeabi-v7a] Compile thumb : event <= bufferevent_sock.c [armeabi-v7a] Compile thumb : event <= bufferevent_ratelim.c [armeabi-v7a] Compile thumb : event <= evthread.c [armeabi-v7a] Compile thumb : event <= log.c [armeabi-v7a] Compile thumb : event <= evutil.c [armeabi-v7a] Compile thumb : event <= evutil_time.c [armeabi-v7a] Compile thumb : event <= evmap.c [armeabi-v7a] Compile thumb : event <= epoll.c [armeabi-v7a] Compile thumb : event <= poll.c [armeabi-v7a] Compile thumb : event <= signal.c [armeabi-v7a] Compile thumb : event <= select.c [armeabi-v7a] StaticLibrary : libevent.a [armeabi-v7a] Executable : libredsocks.so Build jni-helper armeabi-v7a [armeabi-v7a] Compile thumb : cpufeatures <= cpu-features.c [armeabi-v7a] Compile++ thumb: jni-helper <= jni-helper.cpp [armeabi-v7a] StaticLibrary : libcpufeatures.a [armeabi-v7a] SharedLibrary : libjni-helper.so warn: removing resource com.github.shadowsocks.core:string/night_mode without required default value. warn: removing resource com.github.shadowsocks.core:string/night_mode_auto without required default value. warn: removing resource com.github.shadowsocks.core:string/night_mode_off without required default value. warn: removing resource com.github.shadowsocks.core:string/night_mode_on without required default value. warn: removing resource com.github.shadowsocks.core:string/night_mode_system without required default value. warn: removing resource com.github.shadowsocks.core:string/received without required default value. warn: removing resource com.github.shadowsocks.core:string/sent without required default value. > Task :core:lint Ran lint on variant debug: 111 issues found Ran lint on variant release: 111 issues found Wrote HTML report to file:///Users/water/Desktop/git/android/shadowsocks-android-20181230/shadowsocks-android/core/build/reports/lint-results.html Wrote XML report to file:///Users/water/Desktop/git/android/shadowsocks-android-20181230/shadowsocks-android/core/build/reports/lint-results.xml BUILD SUCCESSFUL in 3m 6s 109 actionable tasks: 93 executed, 16 up-to-date
可以看到core模块下overture/bin目录编译出cpu架构相关的.so文件
3.运行调试
运行调试，不出意外，可以看到App运行效果。(包名冲突，需要改包名或者将官方包卸载)。Instant Run不是很支持，建议先将其关闭，菜单路径在 preference -> Build, Execution, Deployment -> Instant run
4.相关错误与处理
Failed to notify build listener Cause: org.jetbrains.plugins.gradle.tooling.util.ModuleComponentIdentifierImpl.getModuleIdentifier()Lorg/gradle/api/artifacts/ModuleIdentifier;
原因：gradle与android.buildtool版本不兼容，项目默认的gradle 5.0 与本人使用的AndroidStudio3.2.1 以及插件com.android.tools.build:gradle:3.2.1 不兼容，将gradle改为4.10.2或者其他低一点的版本即可。
WARNING: ABIs [arm64-v8a,armeabi-v7a,armeabi] set by 'android.injected.build.abi' gradle flag contained 'ARMEABI' not targeted by this project.
原因：缺少对应的so文件，需要先成功编译core模块
Fetching https://golang.org/x/net/proxy?go-get=1
https fetch failed: Get https://golang.org/x/net/proxy?go-get=1: dial tcp 216.239.37.1:443: i/o timeout
package golang.org/x/net/proxy: unrecognized import path "golang.org/x/net/proxy" (https fetch: Get https://golang.org/x/net/proxy?go-get=1: dial tcp 216.239.37.1:443: i/o timeout)
Cross compile overture for arm
../../../Sirupsen/logrus/terminal_check_notappengine.go:9:2: cannot find package "golang.org/x/crypto/ssh/terminal" in any of:
/usr/local/go/src/golang.org/x/crypto/ssh/terminal (from $GOROOT)
/Users/water/Desktop/git/android/shadowsocks-android-20181230/shadowsocks-android/core/src/overture/src/golang.org/x/crypto/ssh/terminal (from $GOPATH)
../core/outbound/client.go:15:2: cannot find package "golang.org/x/net/proxy" in any of:
/usr/local/go/src/golang.org/x/net/proxy (from $GOROOT)
/Users/water/Desktop/git/android/shadowsocks-android-20181230/shadowsocks-android/core/src/overture/src/golang.org/x/net/proxy (from $GOPATH)
> Task :core:goBuild FAILED
原因：go部分依赖无法加载，使用前面手动的方法下载部分依赖，如果已经下载，检查$GOPATH路径是否正确。
其他的问题可以自行根据错误日志去搜索答案，或者留言讨论，欢迎指教。