NSDate/NSCalendar 问题

发布于 2024-09-15 12:13:13 字数 2324 浏览 6 评论 0原文

我的应用程序中有以下代码。它是一个 iPad 应用程序,在一个视图中有五个表,名为 monTable、tueTable 等。这些表代表周一到周五。

在此代码中,我获取日期并将每个表标题设置为周一到周五(本周)的日期。然后,如果我按下按钮 nextWeek 变为 TRUE 并且我重新加载表数据。这意味着周数增加。看?

-(IBAction)nextWeekDown{
    nextWeek = TRUE;
    [monTable reloadData];
}

- (NSString*) tableView:(UITableView *)tableView titleForHeaderInSection:(int)section{

    curDate = [NSDate date]; // Get current date
    calendar = [NSCalendar currentCalendar];// Init calendar
    comps = [calendar components:NSYearCalendarUnit|NSMonthCalendarUnit|NSWeekCalendarUnit|NSWeekdayCalendarUnit fromDate:curDate]; // Get necessary date components

    // Week days change from 1 to 7, Sunday is the 1st, Saturday - the last one.
    if (tableView == monTable){
        if(nextWeek == TRUE){
            [comps setHour:168];
            NSDate *date = [calendar dateByAddingComponents:comps toDate:curDate options:0];
        }
        else{
            [comps setWeekday:2];
        }
    }
    if (tableView == tueTable){
        if(nextWeek == TRUE){
            [comps setHour:168];
            NSDate *date = [calendar dateByAddingComponents:comps toDate:curDate options:0];
        }
        else{
            [comps setWeekday:3];
        }
    }
    if (tableView == wedTable){
        if(nextWeek == TRUE){
            [comps setHour:168];
            NSDate *date = [calendar dateByAddingComponents:comps toDate:curDate options:0];
        }
        else{
            [comps setWeekday:4];
        }
    }
    if (tableView == thuTable){
        if(nextWeek == TRUE){
            [comps setHour:168];
            NSDate *date = [calendar dateByAddingComponents:comps toDate:curDate options:0];
        }
        else{
            [comps setWeekday:5];
        }
    }
    if (tableView == friTable){
        if(nextWeek == TRUE){
            [comps setHour:168];
            NSDate *date = [calendar dateByAddingComponents:comps toDate:curDate options:0];
        }
        else{
            [comps setWeekday:6];
        }
    }

    NSDate *tDate = [calendar dateFromComponents:comps];
    NSDateFormatter* formatter = [[[NSDateFormatter alloc] init] autorelease];
    [formatter setDateFormat:@"EEE, MMM d"];

    return [formatter stringFromDate:tDate];
}

我的问题是,由于某种有线原因,它只在周一增加 7 天到下周,按下按钮时其他日期都不会改变,有什么想法吗?谢谢。

I have the following code in my app. Its an iPad app, with five tables in a single view named monTable, tueTable etc. These tables represent monday to friday.

In this code I get the date and set each table title to the date monday to friday (this week). Then if I press a button nextWeek becomes TRUE and I reload table data. This then means that the week is increased. See?

-(IBAction)nextWeekDown{
    nextWeek = TRUE;
    [monTable reloadData];
}

- (NSString*) tableView:(UITableView *)tableView titleForHeaderInSection:(int)section{

    curDate = [NSDate date]; // Get current date
    calendar = [NSCalendar currentCalendar];// Init calendar
    comps = [calendar components:NSYearCalendarUnit|NSMonthCalendarUnit|NSWeekCalendarUnit|NSWeekdayCalendarUnit fromDate:curDate]; // Get necessary date components

    // Week days change from 1 to 7, Sunday is the 1st, Saturday - the last one.
    if (tableView == monTable){
        if(nextWeek == TRUE){
            [comps setHour:168];
            NSDate *date = [calendar dateByAddingComponents:comps toDate:curDate options:0];
        }
        else{
            [comps setWeekday:2];
        }
    }
    if (tableView == tueTable){
        if(nextWeek == TRUE){
            [comps setHour:168];
            NSDate *date = [calendar dateByAddingComponents:comps toDate:curDate options:0];
        }
        else{
            [comps setWeekday:3];
        }
    }
    if (tableView == wedTable){
        if(nextWeek == TRUE){
            [comps setHour:168];
            NSDate *date = [calendar dateByAddingComponents:comps toDate:curDate options:0];
        }
        else{
            [comps setWeekday:4];
        }
    }
    if (tableView == thuTable){
        if(nextWeek == TRUE){
            [comps setHour:168];
            NSDate *date = [calendar dateByAddingComponents:comps toDate:curDate options:0];
        }
        else{
            [comps setWeekday:5];
        }
    }
    if (tableView == friTable){
        if(nextWeek == TRUE){
            [comps setHour:168];
            NSDate *date = [calendar dateByAddingComponents:comps toDate:curDate options:0];
        }
        else{
            [comps setWeekday:6];
        }
    }

    NSDate *tDate = [calendar dateFromComponents:comps];
    NSDateFormatter* formatter = [[[NSDateFormatter alloc] init] autorelease];
    [formatter setDateFormat:@"EEE, MMM d"];

    return [formatter stringFromDate:tDate];
}

My issue is that for some wired reason it only increases monday by seven days to the next week and none of the other days are changed when the button is pressed any ideas? Thanks.

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檐上三寸雪 2024-09-22 12:13:13

在 nextWeekDown 方法中,您仅重新加载 monTable - 所以其他表自然不会重新加载。您还需要重新加载所有其他表......

In nextWeekDown method you reload only monTable - so naturally other tables don't reload. You need to reload all other tables as well...

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