넣을 때
NSMutableDictionary *dic = ...
[dic setValue:[NSNumber numberWithBool:YES] forKey:@"bool"];
꺼낼 때
NSNumber *num = [dic objectForKey:@"bool"];
if([num compare:[NSNumber numberWithBool:NO]] == NSOrderedSame) {
//do something;
}
http://stackoverflow.com/questions/2478984/how-to-convert-and-compare-nsnumber-to-bool