Index Hierarchy NSObject(RACKVOWrapper) Category Reference Declared in NSObject+RACKVOWrapper.h Tasks – rac_addObserver:forKeyPath:options:block: Instance Methods rac_addObserver:forKeyPath:options:block: - (RACKVOTrampoline *)rac_addObserver:(NSObject *)observer forKeyPath:(NSString *)keyPath options:(NSKeyValueObservingOptions)options block:(RACKVOBlock)block Index Hierarchy