Question

I am trying to create a predicate, but get an error.I get error ‘NSInvalidArgumentException’, reason: ‘Unable to parse the format string “title contains[cd] @%”‘ I tried like this:

request.sortDescriptors = [NSArray arrayWithObject:[NSSortDescriptor sortDescriptorWithKey:@"title" ascending:YES selector:@selector(localizedCaseInsensitiveCompare:)]];
NSString *predicateString=[NSString stringWithFormat:@"title contains[cd] @% ",searchText];
request.predicate = [NSPredicate predicateWithFormat:predicateString];//error here

And like this

request.sortDescriptors = [NSArray arrayWithObject:[NSSortDescriptor sortDescriptorWithKey:@"title" ascending:YES selector:@selector(localizedCaseInsensitiveCompare:)]];
request.predicate = [NSPredicate predicateWithFormat:@"title contains[cd] @%",searchText];//error here

Answer 1

You mean %@, not @%, as the format specifier for an object.