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Shrimp

Example project using Goby.

Overview

This is a sample project illustrating the use of Goby, which is some glue code facilitating the creation of iOS apps in ClojureScript.

This repo is really two projects in one:

  1. An iOS app which contains the Storyboards and which loads the compiled JavaScript.
  2. A ClojureScript project which contains implementations for the view controllers.

This project illustrates how UIKit elements are injected into ClojureScript and how Objective-C protocols such as UITableViewDataSource are implemented. It also shows how CoreData can be used, injecting (mutable) CoreData objects into ClojureScript.

This blog post delves into more of the detail on how the Ambly REPL is integrated into Shrimp.

Running

To set up the Shrimp Xcode project, go into shrimp/iOS and do pod install.

To run Shrimp, first go into the ClojureScript directory and run

clojure -m cljs.main -t none -c shrimp.core

This will produce the main.js file and out directory referenced in the iOS project workspace.

Then open iOS/Shrimp.xcworkspace in Xcode and run the project in an iPhone simulator. You should see the main UI come up with a list view showing a list of shrimp names. Tap on any of these to see editable details.

REPL

To interact with the app via the Ambly REPL:

  1. Run ./repl.sh in the ClojureScript directory
  2. Choose [1] Shrimp on iPhone Simulator (<computer name>).
  3. In the REPL, do (in-ns 'shrimp.detail-view-controller).
  4. In the app, tap on one of the shrimp names to go to a detail view.
  5. Try updating the text in one of the fields with (set! (.-text @name-text-field) "Hello").

You can also establish a REPL with a test device; simply follow the same steps but run the app on a device and choose the device when starting the REPL.

Here is what this all looks like in Cursive (using a previous copy that worked with Weasel):

License

Copyright © 2015-2020 Mike Fikes and Contributors

Distributed under the Eclipse Public License either version 1.0 or (at your option) any later version.