key-value 监控实现 KVOController
- 授权协议: BSD
- 开发语言: Objective-C
- 操作系统: OS X
- 软件首页: https://github.com/facebook/KVOController
- 软件文档: https://github.com/facebook/KVOController
- 官方下载: https://github.com/facebook/KVOController
软件介绍
Key-value 的监控是一个 MVC 应用中非常有用的技术。KVOController （来自 facebook）构建了一个基于 Cocoa 的 time-tested key-value 监控实现，提供简单方便、线程安全的 API。好处包括：
使用 Blocks、自定义 Actions 或者 NSKeyValueObserving 回调进行通知.
观测者移除时无异常
控制器 dealloc 时隐式的观测者移除
提升使用 NSKeyValueObservingInitial 的性能
线程安全并提供在观测者恢复时额外的保护Thread-safety with special guards against observer resurrection – rdar://15985376.
使用方法：
// create KVO controller with observer
FBKVOController *KVOController = [FBKVOController controllerWithObserver:self];
// observe clock date property
[KVOController observe:clock keyPath:@"date" options:NSKeyValueObservingOptionInitial|NSKeyValueObservingOptionNew block:^(ClockView *clockView, Clock *clock, NSDictionary *change) {
// update clock view with new value
clockView.date = change[NSKeyValueChangeNewKey];
}];要求：
iOS 6 or later.
OS X 10.7 or later.
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