Question

if i have String “Life is Good”. now i need to extract some words from that string which fits on width 40. how can achieve this from objective C ?

Answer 1

your answer is correct but to fit exact 40 i have corrected <= to == so new code will be

 NSString *longestFitting = nil;
 NSString *orig = "Life is Good";
 UIFont *font = ...; 
 for (int i = orig.length-1 ; i > 1 ; i--) 
{
 NSString *tmp = [orig substringToIndex:i]; 
 if ([tmp sizeWithFont:font].width == 40) 
 {
   longestFitting = tmp; 
   break;
 } 
}