YSObserver

一个轻量级的通过Block执行通知回调的对象KVO扩展，整个库一共200行代码。

Example

To run the example project, clone the repo, and run pod install from the Example directory first.

How to use

• Normally KVO:

@interface Observer:NSObject

@end

@implementation Observer

-(void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary<NSKeyValueChangeKey,id> *)change context:(void *)context
{
	if ([keyPath isEqualToString:@"frame"]){
		NSLog(@"the frame=%@", change[NSKeyValueChangeNewKey]);
    }
}

@end


UIView *view = [UIView new];
Observer *observer = [Observer new];

[view addObserver:observer forKeyPath:@"frame"  options:NSKeyValueObservingOptionNew  context:NULL];
view.frame = CGRectZero;

• YSObserver

UIView *view = [UIView new];
[view ys_addObserver:anyObject forKeyPath:@"frame" withBlock:^(id newVal, id OldVal){

	NSLog(@"the frame=%@", newVal);
}];

Requirements

Installation

YSObserver is available through CocoaPods. To install it, simply add the following line to your Podfile:

pod 'YSObserver'

Author

youngsoft, obq0387_cn@sina.com

License

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