Description

BabyModel is a model class to help create model class easily. Normally, MVC pattern ask us to create a signal structure for Model-View-Controller that don't let Model-View have strong coupling. But, hooking up the signal structure through KVO is a little bit.... not so convenient. Therefore, that comes with this BabyModel for easy to use.

What We Have

OBModel

OBModel is a basic class that help you create your own model subclass with desired properties.

OBCollection

OBCollection subclassed from OBModel and provides collection changes monitoring.

KVO Behind the Scene

Yes. They are all backed up by KVO behind the scene.

How to Use

Make a Subclass

// Create your own model class
@interface VGModel : OBModel
@property (nonatomic, strong) NSString *title;
@property (nonatomic, strong) UIImage *backgroundImage;
@end

// Start monitor property change in your viewcontroller or elsewhere
VGModel *aModel = [[VGModel alloc] init];
aModel.title = @"Bob";
aModel.backgroundImage = [UIImage imageNamed:@"green.png"];
    
[aModel addObserver:self forProperty:@"title" withEvent:^(NSString * _Nonnull propertyName, NSDictionary * _Nonnull changes) {
    NSLog(@"Change property: %@, changes: %@", propertyName, changes);
}];
    
[aModel addObserver:self forProperty:@"backgroundImage" withEvent:^(NSString * _Nonnull propertyName, NSDictionary * _Nonnull changes) {
    NSLog(@"I got the images: %@", changes);
}];
    
self.testModel = aModel;