Gomobile

Build an aar package using gomobile.

Install gomobile

go install golang.org/x/mobile/cmd/gomobile@latest

gomobile init

I suggest you add {_ "golang.org/x/mobile/geom"} to your import part, so you can run go mod tidy happily

import (
    ...
    _ "golang.org/x/mobile/geom"
    ...
)

Install Android SDK

Gomobile requires android sdk to work，here I use the sdkmanager included with commandlinetools to download.

Download commandlinetools from official

Use the sdkmanager install required components

Jdk is a requirement for sdkmanager, so you need install jdk first(if you don't have one), I don't have so I need install one

apt install default-jdk

Follow the instruction, here I'm using ~/Android/Sdk for the android_sdk

Install platform-tools

~/Android/Sdk/cmdline-tools/latest$ bin/sdkmanager "platform-tools" "platforms;android-31"

Install ndk-bundle

~/Android/Sdk/cmdline-tools/latest$ bin/sdkmanager "ndk-bundle" "ndk;26.1.10909125"

There are many versions here, choose the one you need

Building and deploying to Android

Get the dependency you need then build

# Get your dependencies
go mod tidy

# You don't need do this if you followed my upper suggestion
go get golang.org/x/mobile/bind

# Generate the aar
gomobile bind -target=android/arm64 -ldflags '-s -w' -v -o and.aar  ./and/

Add the aar as a dependency in app module

You can create a libs directory in the app folder and put the aar here, then add it as a dependency in your app build script

project/
├── app/
│    └── libs/             <-- add your aar here   
│    └── src/
│    └── build.gradle.kts  <-- add dependency in it, like below

dependencies {

    implementation(files("../libs/and.aar"))
    ...
}

• #gomobile