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Give instructions directly to a running iOS app in the simulator, through a clojure repl using Nu Lisp instructions. You can play with whatever objects that are accessible. Wanted something like RubyMotion REPL. So hacked this up!

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README.md

Objective-C NuREPL for iOS

Give instructions directly to a running iOS app in the simulator, through a clojure repl. You can play with whatever objects that are synthesized ie., accessible. The code syntax used for sending instructions is Nu Lisp. http://programming.nu/reference

Thanks to Tim Burks for Nu Lisp!

Usage

Add the static libraries and .h .m files in the "Remote" folder into your XCode project.

In the app delegate .h file add the following above @interface:

@class SPNuRemote;

Declare in the app delegate interface an SPNuRemote object

SPNuRemote *remote;

In the app delegate .m file

#import "NuRemote/SPNuRemote.h"

and somewhere in the function

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions

write

remote = [SPNuRemote new];
[remote run];

Thats it!

Running

First run the simulator app. Then do a

 lein swank

in objc-repl and complile the core.clj

To execute a line of code in iOS simulator call the sim function.

For example to do

NSLog("Hello ObjC from Clojure")

Use the following method

objc-repl.core> (sim "(log \"Hello ObjC from Clojure\")")

General syntax is

(sim "Nu Code")

Nu code is Objective-C code but with square brackets replaced with round ones. NSStrings are just "string" instead of @"string" Selectors are defined as "showScreen" instead of @selector(showScreen) and, structs like CGRect for frames are lists

Example:

Suppose there is a button synthesized inside a class rootViewController, and we want to change its backgroundcolor:

objc-repl.core> (sim "(set root (((UIApplication sharedApplication) delegate) viewController))")
objc-repl.core> (sim "((root button) setBackgroundColor:(UIColor greenColor))")

Like changing a button frame

objc-repl.core> (sim "(button setFrame:'(10 10 20 20))")

Creating a cutom button

For example UIButtonTypeCustom is 0 and UIControlStateNormal is also 0

objc-repl.core> (sim "(set button (UIButton buttonWithType:'0))")
objc-repl.core> (sim "(button setFrame:'(0 0 80 50))")
objc-repl.core> (sim "(button setTitle:\"Click Me\" forState:'0)")
objc-repl.core> (sim "((rootViewController view) addSubview:button)")

Enjoy!

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