Develop Android app with Go language

This is a creation in Article, where the information may have evolved or changed.

I. Download the official source Https://github.com/golang/mobile

git clone https://github.com/golang/mobile.git

Two. Move the mobile directory to the $gopath/golang.org/x

Mkdir-p $gopath/golang.org/x && MV Mobile $gopath/golang.org/x/

Three. Copy the official example basic to Gopath

Cp-a $gopath/golang.org/x/mobile/example/basic $gopath/

Four. Run the compile command

CD $gopath/src/basic./make.bash

1. If an error occurs

Go build runtime:android/arm must be bootstrapped using Make.bash

Indicates that you have not configured the Go cross-compilation environment, that is, your current system cannot compile a binary file that can run on the Android/arm CPU *.so

Go to your NDK directory and run make-standalone-toolchain.sh

CD ~/ANDROID-NDK &&/build/tools/make-standalone-toolchain.shcopying prebuilt binaries ... Copying sysroot Headers and libraries ... Copying C + + runtime headers and libraries ... Creating package file:/tmp/ndk-oldfeel/arm-linux-androideabi-4.9.tar.bz2cleaning ... Done.

If it appears

Unable to auto-config arch from Toolchain

This means that Toolchain cannot be configured automatically and needs to be configured manually. First look at what CPU your NDK supports to compile

oldfeel@oldfeel:~/android-ndk$ ls toolchains/aarch64-linux-android-4.9         mipsel-linux-android-4.8aarch64-linux-android-clang3.4    mipsel-linux-android-4.9aarch64-linux-android-clang3.5    mipsel-linux-android-clang3.4arm-linux-androideabi-4.6         mipsel-linux-android-clang3.5arm-linux-androideabi-4.8         renderscriptarm-linux-androideabi-4.9         x86-4.6arm-linux-androideabi-clang3.4   x86-4.8arm-linux-androideabi-clang3.5    x86-4.9llvm-3.4                          x86_64-4.9llvm-3.5                           x86_64-clang3.4mips64el-linux-android-4.9       x86_64- clang3.5mips64el-linux-android-clang3.4  x86-clang3.4mips64el-linux-android-clang3.5   x86-clang3.5mipsel-linux-android-4.6

edit make-standalone-toolchain.sh, find and modify toolchain_name= for

Vim build/tools/make-standalone-toolchain.sh

toolchain_name=arm-linux-androideabi-4.9

Re-execute

./build/tools/make-standalone-toolchain.sh--platform=android-14copying prebuilt binaries ... Copying sysroot Headers and libraries ... Copying C + + runtime headers and libraries ... Creating package file:/tmp/ndk-oldfeel/arm-linux-androideabi-4.9.tar.bz2cleaning ... Done.

Unzip the/tmp/ndk-oldfeel/arm-linux-androideabi-4.9.tar.bz2 (you may be a different name, shown in the running results above) and arm-linux-androideabi-4.9/all the files inside * Move to the NDK directory

MV arm-linux-androideabi-4.9/* ~/android-ndk/

At this time, you can configure the Go cross-compilation environment under GO/SRC ( For example, my go source is placed in the ~/go)

Note: modify the ~/ANDROID-NDK in the second line of the command to its own NDK directory

CD ~/GO/SRCCC_FOR_TARGET=~/ANDROID-NDK/BIN/ARM-LINUX-ANDROIDEABI-GCC goos=android GOARCH=arm GOARM=7 CGO_ENABLED=1. /make.bash

Finally appeared

---installed Go for android/arm in/home/oldfeel/goinstalled commands In/home/oldfeel/go/bin

Description successfully configured, execute Make.bash again

CD $gopath/src/basic./make.bash

If it appears

./make.bash: Line 16:ndk-build: Command not found

Note that the NDK directory is not put into an environment variable, and you need to configure Android_home=sdk.dir

Vim ~/.profile

At the bottom of the add

Export android_home= $HOME/android-sdkexport path= $PATH: $HOME/android-ndk

Refresh environment variable (this refresh is only valid for the current terminal, restart the computer if you want to be valid for all terminals)

SOURCE ~/.profile

The execution of Make.bash should be successful.

CD $gopath/src/basic./make.bash