MGEvents on CocoaPods.org

MGEvents

MGEvents provides any extremely lightweight API for keypath observing, UIControl event handling, and observing and triggering custom events.

pod 'MGEvents'

#import <MGEvents/MGEvents.h>

[box onChangeOf:@"selected" do:^{
    NSLog(@"the new selected value is: %d", box.selected);
}];

[button onControlEvent:UIControlEventTouchUpInside do:^{
    NSLog(@"i've been touched up inside. golly.");
}];

Or in Swift:

button.onControlEvent(.TouchUpInside) {
    print("you touched me!")
}

[earth on:@"ChangedShape" do:^{
    NSLog(@"the earth has changed shape");
}];

Then trigger the event:

[earth trigger:@"ChangedShape"];

See the API reference for more details.