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## Ivy Big Number Calculator (Android)
[Ivy (robpike.io/ivy)](https://robpike.io/ivy) is an interpreter for an APL-like language written in Go.
This repository hosts a minimal Android project used for its [Android version](https://play.google.com/store/apps/details?id=org.golang.ivy&hl=en_US&gl=US).
### How to build
Requirements
- Go 1.17 or newer
- Android SDK
- Android NDK
- `golang.org/x/mobile/cmd/gomobile`
The `gomobile` command respects the `ANDROID_HOME` and `ANDROID_NDK_HOME` environment variables. If `gomobile` can't find your SDK and NDK, you can set these environment variables to specify their locations:
```
export ANDROID_HOME=/path/to/sdk-directory
export ANDROID_NDK_HOME=/path/to/ndk-directory
```
From this directory, run:
```sh
go install golang.org/x/mobile/cmd/gomobile@latest
go install golang.org/x/mobile/cmd/gobind@latest
# Make sure `gomobile` and `gobind` is in your `PATH`.
gomobile bind -o app/ivy.aar robpike.io/ivy/mobile
```
Open this directory from Android Studio, and build.
`robpike.io/ivy` and `golang.org/x/mobile` are required dependencies of this main module. In order to update them:
```
go get -d golang.org/x/mobile@latest
go get -d robpike.io/ivy/mobile
go mod tidy
```
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