Question

我想预约应用程序，用户可以选择单个日期或日期范围来预约。为此，我使用DSLCalenadarView这可以正常工作，但我想要显示当前日期的问题自动选择，其次我无法找到数据处理的工作原理，因为我想存储选择日期，但没有找到任何完美的解决方案。

请帮我整合一下。

Answer 1

查找并打开DSLCalendarDayView.m现在查找此方法，drawBackground

- (void)drawBackground {
if (self.selectionState == DSLCalendarDayViewNotSelected) {

            NSUInteger flags = NSYearCalendarUnit | NSMonthCalendarUnit | NSDayCalendarUnit;
            NSCalendar *calendar = [NSCalendar currentCalendar];

            NSDateComponents *components = [calendar components:flags fromDate:[self.day date]];
            NSDateComponents *componentsOfToday = [calendar components:flags fromDate:[NSDate date]];

            NSDate *date = [calendar dateFromComponents:components];
            NSDate *dateToday = [calendar dateFromComponents:componentsOfToday];

            if (self.isInCurrentMonth) {
                    if ([date isEqualToDate:dateToday]) {
                            [[UIColor lightGrayColor] setFill]; //from now current day is colored
                    }
                    else {
                            [[UIColor colorWithWhite:245.0 / 255.0 alpha:1.0] setFill];
                    }
            }
            else {
                    if ([date isEqualToDate:dateToday]) {
                            [[UIColor lightGrayColor] setFill]; //even if it is not current month, current day is colored
                    }
                    else {
                            [[UIColor colorWithWhite:225.0 / 255.0 alpha:1.0] setFill];
                    }
            }
            UIRectFill(self.bounds);
}
else {
    switch (self.selectionState) {
        case DSLCalendarDayViewNotSelected:
            break;

        case DSLCalendarDayViewStartOfSelection:
            [[[UIImage imageNamed:@"DSLCalendarDaySelection-left"] resizableImageWithCapInsets:UIEdgeInsetsMake(20, 20, 20, 20)] drawInRect:self.bounds];
            break;

        case DSLCalendarDayViewEndOfSelection:
            [[[UIImage imageNamed:@"DSLCalendarDaySelection-right"] resizableImageWithCapInsets:UIEdgeInsetsMake(20, 20, 20, 20)] drawInRect:self.bounds];
            break;

        case DSLCalendarDayViewWithinSelection:
            [[[UIImage imageNamed:@"DSLCalendarDaySelection-middle"] resizableImageWithCapInsets:UIEdgeInsetsMake(20, 20, 20, 20)] drawInRect:self.bounds];
            break;

        case DSLCalendarDayViewWholeSelection:
            [[[UIImage imageNamed:@"DSLCalendarDaySelection"] resizableImageWithCapInsets:UIEdgeInsetsMake(20, 20, 20, 20)] drawInRect:self.bounds];
            break;
        }
    }
}

Answer 2

您可以使用setSelectedRange来执行此操作。以下是自动选择当前日期的代码段。

NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
[calendar setTimeZone:[NSTimeZone systemTimeZone]];
NSDateComponents *components    = [calendar components:(NSCalendarCalendarUnit |
                                      NSYearCalendarUnit     |
                                      NSMonthCalendarUnit    |
                                      NSDayCalendarUnit      |
                                      NSHourCalendarUnit     |
                                      NSMinuteCalendarUnit   |
                                      NSWeekdayCalendarUnit  |
                                      NSSecondCalendarUnit) fromDate:[NSDate date]];
DSLCalendarRange *range = [[DSLCalendarRange alloc]initWithStartDay:components endDay:components];    
[self.calendarView setSelectedRange:range];

DSLCalendarView数据处理和当前日期

2 个答案: