iPhone SDK initializing NSString warning messag

Question

I think this is a quick question and answer - I'm reading a dictionary entry for a detail view which is pushed from a tableview row. but in the detail view, when I'm picking up the data to display (as an HTML page) I'm getting the message: incompatible Objective-C types initializing 'struct NSDictionary *'. expected 'struct NSString *' Could someone help as to what I've done wrong and how it needs correcting. Thanks in advance

The code is here:

- (void)viewDidAppear:(BOOL)animated {
NSLog(@"didappear");
NSString *url = definition; // WARNING MESSAGE IS HERE
//self.glossaryWordDefinition.text = definition;
[glossaryWordDefinition loadRequest:
 [NSURLRequest requestWithURL:[NSURL fileURLWithPath:[[NSBundle mainBundle]
                                                      pathForResource:url
                                                      ofType:@"html"] isDirectory:NO]]];
[super viewDidAppear:animated];

}

Answer 1

Your 'definition' variable seems to be declared as a NSDictionary *, and you are trying to assign it to a NSString *. You probably mean something like this:

NSString *url = [definition valueForKey:@"some key"];

Answer 2

Try this, as far as i understand from the given data,

NSString *url = [definition objectAtIndex:row];

row is the indexpath value of the selected row, declared at the didSelectIndexPath method,

NSInteger row = [indexPath row];