ios - Only two selection tableView (Shortcut code) -

in controller user can multiple selection (two) only, code working fine develop ourselves looking wonderful shortcut code, need make nice view of code think liked see ideas

-(void)tableview:(uitableview *)tableview didselectrowatindexpath:(nsindexpath *)indexpath {       if (self.firstindex) {          if (indexpath == self.firstindex) {              // return of first selection              uitableviewcell *oldcell = [tableview cellforrowatindexpath:indexpath];             if (indexpath.row % 2) oldcell.backgroundcolor = [uicolor whitecolor];             else oldcell.backgroundcolor = [viewcontroller colorfromhexstring:@"#f4f6f9"];             oldcell.textlabel.textcolor = [uicolor blackcolor];              self.firstindex = nil;          }          else {              // selection              if (self.secondindex) {                  if (indexpath == self.secondindex) {                      // return                      uitableviewcell *oldcell = [tableview cellforrowatindexpath:indexpath];                     if (indexpath.row % 2) oldcell.backgroundcolor = [uicolor whitecolor];                     else oldcell.backgroundcolor = [viewcontroller colorfromhexstring:@"#f4f6f9"];                     oldcell.textlabel.textcolor = [uicolor blackcolor];                      self.secondindex = nil;                  }                  else {                      // cannot choose                      nslog(@"cannot");                 }             } else {                  // set second choose                  uitableviewcell *newcell = [tableview cellforrowatindexpath:indexpath];                 newcell.backgroundcolor = [uicolor colorwithred:0.137 green:0.137 blue:0.145 alpha:1.00];                 newcell.textlabel.textcolor = [uicolor whitecolor];                  self.secondindex = indexpath;              }         }      } else {          // set first selection          uitableviewcell *newcell = [tableview cellforrowatindexpath:indexpath];         newcell.backgroundcolor = [uicolor colorwithred:0.137 green:0.137 blue:0.145 alpha:1.00];         newcell.textlabel.textcolor = [uicolor whitecolor];          self.firstindex = indexpath;      } } 

self.firstindex & self.secondindex nsindexpath