目标c中的Google日历事件描述检索

Question

每一个，我正在使用目标c中的gdata库为iphone应用程序检索谷歌日历事件，我这样做，

for( int i=0; i<count; i++ ){
          NSMutableArray *temporary=[[NSMutableArray alloc]init];

          [temporary removeAllObjects];

          GDataEntryCalendarEvent *event = [events objectAtIndex:i];

        //  [controller.googlearray addObject:event];

          GDataWhen *when = [[event objectsForExtensionClass:[GDataWhen class]] objectAtIndex:0];


          if( when ){
              NSDate *date1 = [[when startTime] date];
              NSDate *date = [date1 dateByAddingTimeInterval:18000.0];
              NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];

              [dateFormatter setDateFormat:@"yy-MM-dd-HH-mm"];
              [temporary addObject:date];///1   date

              NSDate *date11=[[when endTime] date];
              NSDate *date2 = [date11 dateByAddingTimeInterval:18000.0];
             // [controller.array_objject.google_events insertObject:date atIndex:i];///2   date
              [temporary addObject:date2];///1   date

              [dateFormatter release];
          }
          //[controller.array_objject.google_events insertObject:[[event title] stringValue] atIndex:i];  /////3   title
          [temporary addObject:[[event title] stringValue]];///1   date
        GDataWhere *addr = [[event locations] objectAtIndex:0];
          if( addr )
              //[controller.array_objject.google_events insertObject:[addr stringValue] atIndex:i];///// 4   location
              [temporary addObject:[addr stringValue]];
               [controller.googlearray addObject:temporary];///// 4   location

      }

现在我在这里检索事件的开始和结束时间，标题，位置等，但我还想检索事件的描述（如果用户在谷歌日历上创建事件时输入事件详细信息），所以在这种情况下，我想要检索那个描述或事件的细节，我努力但保留，PLZ。提前告诉我这件事。关心萨阿德