ios - Can I figure out the numberOfLines of NSString without creating UILabel? -

i want know number of lines, given font, constraints, , text. can figure out without creating uilabel?

+ (int)numberoflines:(nsdictionary *)data{     nsstring *mystring = [some string calculation];     cgsize sizeconstrain = cgsizemake(some constrain calculation);     cgsize stringsize = [mystring sizewithfont:somefont constrainedtosize:sizeconstrain];      cgrect labelframe = cgrectmake(0,                                    0,                                    stringsize.width,                                    stringsize.height + 2);      uilabel *label = [[uilabel alloc]initwithframe:labelframe];      label.text = mystring;     return label.numberoflines; } 

yes

+ (int)numberoflines:(nsdictionary *)data{         nsstring *mystring = [some string calculation];         cgsize sizeconstrain = cgsizemake(some constrain calculation);         cgsize stringsize = [mystring sizewithfont:somefont constrainedtosize:sizeconstrain];           return (stringsize.height/somefont.lineheight);     } 

edit: used uitextview , ios7

 - (cgfloat) getrowsfortext:(nsstring*) text{  cgfloat fixedwidth = 300;  uifont *font = [uifont fontwithname:@"helveticaneue" size:14]; nsmutableparagraphstyle *paragrapstyle = [[nsmutableparagraphstyle alloc] init]; paragrapstyle.alignment = nstextalignmentleft;  textstepattr = [nsdictionary dictionarywithobjectsandkeys:                 font,nsfontattributename,                 paragrapstyle, nsparagraphstyleattributename,                 nil];  nsattributedstring *attributedtext = [[nsattributedstring alloc] initwithstring:text attributes:textstepattr]; cgrect rect = [attributedtext boundingrectwithsize:cgsizemake(fixedwidth, maxfloat)                                            options:nsstringdrawinguseslinefragmentorigin                                            context:nil];   return (rect.size.height / font.lineheight) ; }