iodine

A MVVM framework based on ReactiveCocoa and built with a goal to sepparate untestable UIKit view logic from testable business logic.

How does it work?

Well it's pretty simple:

• We create a new Model class:

@interface MYViewModel : IOTableViewModel

• We subclass any of the IO view controllers:

@interface MYViewController : IOTableViewController

• Then we implement the binding methods:

- (void)pre
{
	[super pre];
	
	//This is where all the things prior to initializing the view go. 
    //For example:
	[self rac_signalForSelector:@selector(scrollViewDidScroll:) 
				   fromProtocol:@protocol(UIScrollViewDelegate)];
}

- (void)setupViews
{
    [super setupViews];
    
    //Here we set up our view like we do on viewDidLoad. For example:
    [self.view addSubview:self.doneButton];
}

- (void)post
{
    [super post];
    
    //After we setup the views, we want to bind our view model against 
    //them, this is where all that magic goes. For example:
    RAC(self.doneButton, userInteractionEnabled) = 
         RACObserve(self.viewModel, doneEnabled);
}

• Now just instantiate your view controller with the model and you're done:

MYViewModel *vm = [[MYViewModel alloc] init];
MYViewController *vc = [[MYViewController alloc] initWithViewModel:vm];

Okay, now can I get a real example?

rprtr should be a good resource, this project was developed against it.

What about installing the framework?

You can build it as a regular framework, but I recommend using CocoaPods:

pod 'iodine'

Currently supported UIKit classes

• UIViewController (IOViewController)
• UITableViewController (IOTableViewController)
• UITableHeaderFooterView (IOTableHeaderFooterView)
• UITableViewCell (IOTableViewCell)