如何将UITableView节索引用作NSInteger？

Question

我想将JTCalendar的kJTCalendarDaySelected设置为等于可见的index.section。如果索引为0，我希望kJTCalendarDaySelected设置为1（本月的第1个），如果索引为1，我希望将其设置为2（本月的第2个），依此类推。

当我尝试这样做时：

-(BOOL)whatSectionsAreVisible {
    NSArray *visibleRowIndexes = [self.agendaTable indexPathsForVisibleRows];
    for (NSIndexPath *index in visibleRowIndexes) {

        self.daySection = index.section;

        // Update views
        [[NSNotificationCenter defaultCenter] postNotificationName:@"kJTCalendarDaySelected" object:self.daySection];

        // Store currentDateSelected
        [self.calendar setCurrentDateSelected:self.daySection];

        NSLog(@"The visible section has an index of: %ld", (long)index.section);

        if (index.section == 0) {
            NSLog(@"index.row is indeed 0");
            return YES;
        }
    }
    return NO;
}

我收到以下错误：

implicit conversion of non-Objective-c pointer type 'NSInteger' (aka 'long') to 'id' is disallowed with ARC

如何将index.section的id转换为可用于此目的的NSInteger？

Answer 1

您需要传递参数类型ID。 假设你可以这样使用..

NSDictionary *dict = [NSDictionary dictionaryWithObjectsAndKeys:[NSNumber numberWithInteger:self.daySection],@"sectionIndex", nil];
[[NSNotificationCenter defaultCenter] postNotificationName:@"kJTCalendarDaySelected" object:dict];

希望这会对你有帮助......

Answer 2

您可以使用以下代码删除错误

[[NSNotificationCenter defaultCenter] postNotificationName:@"kJTCalendarDaySelected" object:[NSNumber numberWithInteger:self.daySection]];

NSString *strDate = [NSString stringWithFormat:@"%@", [NSNumber numberWithInteger:section]];

NSDateFormatter *formatter = [[NSDateFormatter alloc]init];
[formatter setDateFormat:@"MM"];
[formatter setDateStyle:NSDateFormatterMediumStyle];

NSDate *selecteDate = [[formatter standaloneMonthSymbols] objectAtIndex:[formatter dateFromString:strDate]];

NSLog(@"%@",selectedDate);

如果你的indexpath.section是＆＃34; 0＆＃34;那么selectedDate将以月名的形式出现。然后它会给你一月＆＃39;所以你可以在日历中设置月份名称。