KISObserver 1.1.0

Maintained by Unclaimed.

You want to add pod 'KISObserver', '~> 1.1' similar to the following to your Podfile:

target 'MyApp' do
  pod 'KISObserver', '~> 1.1'
end

Then run a pod install inside your terminal, or from CocoaPods.app.

Alternatively to give it a test run, run the command:

pod try KISObserver

KISObserver 1.1.0

By
Romain Lofaso

KISObserver is an easy way to use the Key-Value Observing (KVO) pattern.

You can observe objects for keypaths with blocks, selectors and the usual API. Moreover, the observer removes automagically the observations when it is deallocated.

How to use it

An observation with a block and the default options:

[self observeObject:ob forKeyPaths:@"property" withBlock:^(KISNotification *notification) {
    NSLog(@"New value:\t%@", notification.newValue);
    NSLog(@"Old value:\t%@", notification.oldValue);
}];

An observation with a selector on a one-to-many relation:

NSKeyValueObservingOptions opt = NSKeyValueObservingOptionInitial | NSKeyValueObservingOptionNew | NSKeyValueObservingOptionOld;
[self observeObject:ob forKeyPaths:@"arr" options:opt withSelector:@selector(onChangeWithNotification:)];

// ...

- (void)onChangeWithNotification:(KISNotification *)notification
{
    NSLog(@"isSetting:\t%hhd", notification.isSetting);
    NSLog(@"Insertions:\t%@", notification.insertionIndexSet);
    NSLog(@"Removals:\t%@", notification.removalIndexSet);
    NSLog(@"Replacements:\t%@", notification.replacementIndexSet);
}

An observation of many keypaths at the same time:

[self observeObject:ob forKeyPaths:@"prop1|prop2" withBlock:^(KISNotification *notification) {
    NSLog(@"KeyPath:\t%@", notification.keyPath);
    NSLog(@"New value:\t%@", notification.newValue);
    NSLog(@"Old value:\t%@", notification.oldValue);
}];

Your dealloc:

- (void)dealloc
{
    // Nothing to do. :-)
}

How to install it

Use CocoaPods!

CocoaPods is a dependency manager for Objective-C, which automates and simplifies the process of using 3rd-party libraries in your projects.

Add the project inside your Podfile
```
pod 'KISObserver', '~> 1.0.x'
```
Update your installation
```
pod install
```
Import KISObserver within the files that are going to use it

#import <KISObserver/KISObserver.h>

License

KISObserver is available under the MIT license. See the LICENSE file for more info.