https://github.com/mignon-p/frege-on-android

An example of how to use Frege on Android.
https://github.com/mignon-p/frege-on-android

Last synced: 19 days ago
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An example of how to use Frege on Android.

• Host: GitHub
• URL: https://github.com/mignon-p/frege-on-android
• Owner: mignon-p
• Created: 2016-09-16T23:55:32.000Z (about 8 years ago)
• Default Branch: master
• Last Pushed: 2016-10-09T16:44:54.000Z (about 8 years ago)
• Last Synced: 2024-09-06T11:07:25.869Z (3 months ago)
• Language: Perl
• Homepage:
• Size: 127 KB
• Stars: 1
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Changelog: change-package-name.pl

Awesome Lists containing this project

• awesome-frege - frege-on-android - How to use Frege on Android. (Libraries / Android)

README

        

This repository is an example of how to call code written in

[Frege][1] from an Android program.  It's assumed that you will write

your user interface in Java, and just write application logic in

Frege.  Calling Android APIs from Frege is trickier and is not

discussed here.

## Screenshot

![FregeActivity][3]

## Using in your own project

You can get started using this repo as the basis for your own project

by running the `change-package-name.pl` script in this directory.

Give it the package name you want to use, and the activity name you

want to use, and it will rename the code.  For example:

    ./change-package-name.pl com.example.whatever WhateverActivity

## License

The code in this repo that I (Patrick Pelletier) have written is in

the public domain / [cc0][0].  However, some of the files come from

the scaffolding generated by `android project create`, and part of the

`build.gradle` file comes from [a post on the Frege mailing list][2].

## Caveats

This project uses Frege 3.23, so for that you would use the

[old way of calling Frege from Java][5].  I haven't tried using Frege

3.24, but if you want to try that, you'd use [the new way][6].

Also, note that this project requires [API Level 21][10] or

higher, because Frege needs [ForkJoinPool][11], which Android only has

in level 21 and up.

I was not able to get Proguard to work successfully, so everything in

the Frege jar file (including the compiler) gets uploaded to the

phone.  This required using [multidex][9], although it works fine.

Pull requests are welcome!

[0]: https://creativecommons.org/publicdomain/zero/1.0/legalcode.txt

[1]: http://frege-lang.org/

[2]: https://groups.google.com/forum/#!msg/frege-programming-language/iIJeAwlf8UM/sqOcu7f6AwAJ

[3]: screenshot.png

[5]: https://github.com/Frege/frege/wiki/Calling-Frege-Code-from-Java

[6]: https://github.com/Frege/frege/wiki/Calling-Frege-from-Java-(from-release-3.24-on)

[9]: https://developer.android.com/studio/build/multidex.html#mdex-gradle

[10]: https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels

[11]: https://developer.android.com/reference/java/util/concurrent/ForkJoinPool.html