Obj-C-在UICollectionView单元格标签中显示日历日期吗？

Question

我正在使用UICollectionView构建日历。我设法实现了代码，以计算每年每年每个月的日期和星期几。也就是说，如何在单元格的UILabel中显示连续的日期？现在，我只能在所有单元的UILabel中显示1（请参见下文-在这种情况下，9月1日显示）。

ViewController.m

- (NSDateFormatter *)returnDateFormatter {
    NSDateFormatter *dateFormatter = [[NSDateFormatter alloc]init];
    [dateFormatter setDateFormat:@"dd/MM/yyyy"];
    return dateFormatter;

}

-(int)numberOfdaysinMonth:(int)selectedMonthNumber WithDate:(NSDate *)selectedDate
{
    NSCalendar* cal = [NSCalendar currentCalendar];
    NSDateComponents* comps = [[NSDateComponents alloc] init];
    // Set your month here
    [comps setMonth:selectedMonthNumber];

    NSRange range = [cal rangeOfUnit:NSCalendarUnitDay
                              inUnit:NSCalendarUnitMonth
                             forDate:selectedDate];
    NSLog(@"%lu", (unsigned long)range.length);


    return (int)range.length;


}


-(long)weekDayForDate:(NSDate *)date
{
    NSCalendar* cal = [NSCalendar currentCalendar];
    NSDateComponents* comp = [cal components:NSCalendarUnitWeekday fromDate:date];
    return [comp weekday];

}


- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath{
   // static NSString *identifier = @"cell";

        CalendarCollectionViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"cell" forIndexPath:indexPath];


    int month = 9;
    int year = 2018;
    NSDate *date = [[self returnDateFormatter] dateFromString:[NSString stringWithFormat:@"1/%d/%d",month,year]
                    ];
    int numberOfDays = [self numberOfdaysinMonth:month WithDate:date];
    int index =  [self weekDayForDate:date];



    NSLog(@"Number Of Days %d", numberOfDays);
    NSLog(@"The date is %@", date);

    cell.number.text = [NSString stringWithFormat:@"%@", date];


    return cell;
}