How to remove observer using ReactiveCocoa?

Question

How to stop receiving new name after some event?

[RACObserve(self, username) subscribeNext:^(NSString *newName) {
    if ([newName isEqualToString:@"SomeString"])
    {
       //Do not observe any more
    }
}];

P.S. Sorry for obvious question, but I can't find answer

Answer 1

You can use method 'dispose' of RACDisposable object which be returned from 'subscribeNext'.

__block RACDisposable *handler = [RACObserve(self, username) subscribeNext:^(NSString *newName) {
    if ([newName isEqualToString:@"SomeString"]) {
        //Do not observe any more
        [handler dispose]
    }
}];