我有一个Button
在我的view
。点击Button
你会得到一个datepicker
默认为今天的日期,然后用户可以选择他们想要搜索事件的日期。问题是,无论我选择什么日期,它总是返回当前日期并将其添加到我TextField
放在 muButton
中的日期中。任何人都可以告诉我我错在哪里。我以编程方式设置日期选择器。
以下是我的代码,希望有人可以帮助我!
//点击按钮时显示日期选择器
- (IBAction)startDateButtonAction:(id)sender
{
if ([popOverController isPopoverVisible]) {
[popOverController dismissPopoverAnimated:YES];
}
UIViewController* popoverContent = [[UIViewController alloc] init]; //ViewController
UIView *popoverView1 = [[UIView alloc] init]; //view
datePicker =[[UIDatePicker alloc]init];//Date picker
datePicker.frame =CGRectMake(0,0,240, 150);
datePicker.datePickerMode = UIDatePickerModeDate;
[datePicker setMaximumDate:[[NSDate date] dateByAddingTimeInterval:24*60*60*-6]];
[datePicker setMinimumDate:[DateFormatter getSubtractedDateForomCurrentDateWith:35]];
datePicker.date = [DateFormatter getDateFromString:startDateLabel.text];
datePicker.selected = YES;
[datePicker addTarget:self action:@selector(datePickerValue) forControlEvents:UIControlEventValueChanged];
[popoverView1 addSubview:datePicker];
popoverContent.view = popoverView1;
popOverController = [[UIPopoverController alloc] initWithContentViewController:popoverContent];
[popOverController setPopoverContentSize:CGSizeMake(240, 150) animated:NO];
[popOverController presentPopoverFromRect:startDateButton.frame inView:headerView permittedArrowDirections:UIPopoverArrowDirectionUp animated:YES];
}
//从日期选择器中选择任何日期时的动作函数
- (void) datePickerValue
{
NSDateComponents *offsetComponents = [[NSDateComponents alloc] init];
[offsetComponents setDay:-6];
NSDate *labelStartDate = datePicker.date;
startDate = [DateFormatter getOnlyDateComponentsFromDate:labelStartDate];
NSDate *labelEndDate = [self addDayToDate:startDate Number:6];
startDateLabel.text = [DateFormatter getDateStringddmmyyy:labelStartDate];
endDateLabel.text = [DateFormatter getDateStringddmmyyy:labelEndDate];
}
[包括这里使用的功能]
//used for getting date components
+(NSDate *) getOnlyDateComponentsFromDate:(NSDate *)date
{
unsigned int flags = NSYearCalendarUnit | NSMonthCalendarUnit | NSDayCalendarUnit;
NSCalendar* calendar = [NSCalendar currentCalendar];
NSDateComponents* components = [calendar components:flags fromDate:date];
NSDate* dateOnly = [calendar dateFromComponents:components];
return dateOnly;
}
- (NSDate *) addDayToDate:(NSDate *)date Number:(int) number
{
NSDate *newDate = [date dateByAddingTimeInterval:60*60*24*number];
return newDate;
}
我正在使用 ARC。datePicker.date
即使我选择任何其他日期,这里也只给我当前日期