Objective-C dictionary inserting a BOOL

Question

OK, I'm a little confused. It's probably just a triviality. I've got a function which looks something like this: ``` - (void)getNumbersForNews:(BOOL)news andMails:(BOOL)mails { NSMutableDictionary *parameters = [[NSMutableDictionary alloc] init]; [parameters setValue:news forKey:@"getNews"]; [parameters setValue:mails forKey:@"getMails"];...} ``` It doesn't matter whether I use `setValue:forKey:` or `setObject:ForKey:`, I'm always getting a warning: "Passing argument 1 of set... makes pointer from integer without a cast"... How on earth do I insert a bool into a dictionary?

Accepted Answer

Values in an `NSDictionary` must be objects. To solve this problem, wrap the booleans in `NSNumber` objects:

```
[parameters setValue:[NSNumber numberWithBool:news] forKey:@"news"];
[parameters setValue:[NSNumber numberWithBool:mails] forKey:@"mails"];
```

Objective-C dictionary inserting a BOOL

Solution

Problem