Question

I am trying to make a dictionary for Facebook posting, and trying to figure out how to use placeholders in my string. I currently have:

NSDictionary *parameters = @{@"message" : @"I'm reading today.", @"caption": (@"I'm on %@", _entry.date), @"link": _entry.articleUrl};

_entry.date is a string that displays which day of reading the user is on, and _entry.articleUrl is a string for the page the user is reading. My issue is getting the correct format so that the string used for caption can have text and a placeholder for the string. Right now it tells me the expression result is unused.

Answer 1

try this string api to build your string:

NSDictionary *parameters = @{@"message" : @"I'm reading today.", @"caption": [NSString stringWithFormat:@"I'm on %@", _entry.date], @"link": _entry.articleUrl};