From today date to 5 years how to add the values in UIPickerView
Why should you use UIPickerView, Why not UIDatePicker?
You can set the MinimumDate and MaximumDate in UIDatePicker. You should code as,
NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
NSDate *currentDate = [NSDate date];
NSDateComponents *comps = [[NSDateComponents alloc] init];
[comps setYear:5];
NSDate *maxDate = [calendar dateByAddingComponents:comps toDate:currentDate options:0];
[comps release];
[calendar release];
[datePicker setMaximumDate:maxDate];
[datePicker setMinimumDate:currentDate];
Use UIDatePickerView. And set value if this date picker as Start and End date..
UIDatePicker has a property of Start and End Date Values..
maximumDate
minimumDate
These two property helps you..
Related
Strange behavior in iOS 6.1 I have set the minimum date to current date for my date picker like this
NSDate *currentTime = [NSDate date];
[picker setMinimumDate:currentTime];
But when I run the app I am able to scroll to past date, though its not selected, picker doesn't jump back to current date. It's happening only with iOS 6.1 version and in rest picker is behaving normally.
I got the same issue as you and fixed it with only setting the date to the maximum date manually (in this case I set the limit to the current date):
- (IBAction)pickerValueChanged:(id)sender {
dispatch_async(dispatch_get_main_queue(), ^{
UIDatePicker *datePicker = (UIDatePicker *)sender;
if ([self.datePicker.date compare:[NSDate date]] == NSOrderedDescending) {
datePicker.date = [NSDate date];
}
});
}
This function is triggered when the date value from the date picker did change. you can set a maximum or minimum value here.
Try This code
NSCalendar *calendar = [[[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar] autorelease];
NSDate *currentDate = [NSDate date];
NSDateComponents *comps = [[[NSDateComponents alloc] init] autorelease];
[comps setYear:30];
NSDate *maxDate = [calendar dateByAddingComponents:comps toDate:currentDate options:0];
[comps setYear:-30];
NSDate *minDate = [calendar dateByAddingComponents:comps toDate:currentDate options:0];
[datePicker setMaximumDate:maxDate];
[datePicker setMinimumDate:minDate];
You have to set min and max date like:
NSCalendar *calendar = [[[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar] autorelease];
NSDate *currentDate = [NSDate date];
NSDateComponents *comps = [[[NSDateComponents alloc] init] autorelease];
NSDate *minDate = [calendar dateByAddingComponents:comps toDate:currentDate options:0];
[datePicker setMinimumDate:minDate];
The property is an NSDate object or nil (the default), which means no maximum date. This property, along with the minimumDate property, lets you specify a valid date range. If the minimum date value is greater than the maximum date value, both properties are ignored. The minimum and maximum dates are also ignored in the countdown-timer mode (UIDatePickerModeCountDownTimer).
Try setting valid minimum and maximum date both.
It works for me.
the date Picker I have right now has the style like : mm/dd/YYYY and it displays at Textfield in "YYYY/MM/DD".
how can I change my code so that the datepicker shown is also changed to " YYYY/MM/DD".
Here is my code:
NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar] ;
NSDate *currentDate = [NSDate date];
NSDateComponents *comps = [[NSDateComponents alloc] init] ;
[comps setYear:-10];
NSDate *maximumDate = [calendar dateByAddingComponents:comps toDate:currentDate options:0];
[comps setYear:-10];
NSDate *minimumDate = [calendar dateByAddingComponents:comps toDate:currentDate options:0];
UIDatePicker *datePicker = [[UIDatePicker alloc]init];
datePicker.datePickerMode = UIDatePickerModeDate;
[datePicker setMaximumDate:maximumDate];
[datePicker setMinimumDate:minimumDate];
[datePicker addTarget:self action:#selector(datePickerValueChanged:) forControlEvents:UIControlEventValueChanged];
[self.Birthday setInputView:datePicker] ;
You can set the locale property of the DatePicker. The documentation says:
The default value is the current locale as returned by the currentLocale property of NSLocale, or the locale used by the date picker’s calendar. Locales encapsulate information about facets of a language or culture, such as the way dates are formatted.
It is generally considered poor form to force a user to select in a fashion not typical to their locale.
I think, you can't modify the UIDatePicker default style.
You can change to many formats after the date is picked by using NSDateFormatter
Example:
NSDate *today = [NSDate date];
NSDateFormatter *dateFormat = [[NSDateFormatter alloc] init];
[dateFormat setDateFormat:#"MM/dd/yyyy hh:mma"];
NSString *dateString = [dateFormat stringFromDate:today];
NSLog(#"date: %#", dateString);
I am new to iPhone developer,
I made a one custom date in that custom date i want to add 1 month or 3 month or 6 month according to frequency.
i want to add month till newDate is less then today's date.
here is my code snippet,
while ([today compare:temp] == NSOrderedDescending)
{
NSLog(#"inside----- today=%#,temp=%#",today,temp);
//add to dates
NSDateComponents *newComponents= [[NSDateComponents alloc] init];
if([FrequencySelText isEqualToString:#"Monthly"]){
[newComponents setMonth:1];
}
if([FrequencySelText isEqualToString:#"Quarterly"]){
[newComponents setMonth:3];
}
if([FrequencySelText isEqualToString:#"Half - Yearly"]){
[newComponents setMonth:6];
}
if([FrequencySelText isEqualToString:#"Yearly"]){
[newComponents setMonth:12];
}
// get a new date by adding components
NSDate* temp= [[NSCalendar currentCalendar] dateByAddingComponents:newComponents toDate:temp options:0];
NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
[formatter setDateFormat:#"dd/MM/yyyy"];
NSString *newDate = [formatter stringFromDate:temp];
NSLog(#"new date=%#",newDate);
}
My Log shows: inside----- today=2012-07-11 14:41:27 +0000,temp=2012-04-12 03:00:00 +0000
I am getting Exc_bad_access at this line, NSDate* temp= [[NSCalendar currentCalendar] dateByAddingComponents:newComponents toDate:temp options:0];
Any help will bw appreciated.
Providing value to temp again then no need provide NSDate object type again. Here u already have NSDate *temp then why r u using same name again for NSDate object
temp= [[NSCalendar currentCalendar] dateByAddingComponents:newComponents toDate:temp options:0]
Maybe try this one:
NSDateComponents *dateComponents = [[[NSDateComponents alloc] init] autorelease];
NSCalendar *gregorian = [[[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar] autorelease];
[dateComponents setMonth:1]; // Sample Add
NSDate *tempDate = [gregorian dateByAddingComponents:dateComponents toDate: temp options:0];
NSString *strTempDate = [dateFormat stringFromDate:tempDate];
// New Date on strTempDate
I have a date in UILabel(like 'Dec 14, 2010). This date i want to set as minimum date of my UIDatepicker. How can i do this please reply?
Thanks
Nishant
Convert your UILabel text in to date format using NSDateFormatter and put that value replacing "Date" in following example:
UIDatepicker *datePicker;
NSDate *Date=[NSDate date];
datePicker.minimumDate=Date;
You can use NSDateFormatter and use setDateFormat method for setting Date format.
[formatter setDateFormat:#"MMM dd,yyyy"];
NSDate *date = [formatter dateFromString:lblDate.text];
datePicker.minimumDate=date;
NSCalendar *calendar = [[[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar] autorelease];
NSDate *currentDate = [NSDate date];
NSDateComponents *comps = [[[NSDateComponents alloc] init] autorelease];
[comps setYear:0];
NSDate *maxDate = [calendar dateByAddingComponents:comps toDate:currentDate options:0];
[comps setYear:-5];
NSDate *minDate = [calendar dateByAddingComponents:comps toDate:currentDate options:0];
[datePicker setMaximumDate:maxDate];
[datePicker setMinimumDate:minDate];
it showing five year date.......
See the minimum time from the current date to one month:
NSDate* currentTime = [NSDate date];
[datePicker setMinimumDate:[currentTime dateByAddingTimeInterval:43200]];//min time +12:00 for the current date
[datePicker setMaximumDate:[currentTime dateByAddingTimeInterval:2592000]]; // max day (+ 30 )
I have an NSDate that I get from a UIDatepicker.
IBOutlet UIDatePicker *dueDate;
NSDate *selectedDate = [dueDate date];
How do I retrieve the month from dueDate in the form of an int? (1 for Jan, 2 for Feb, etc.)
NSCalendar *calendar = [NSCalendar currentCalendar];
NSDateComponents *components = [calendar components:NSMonthCalendarUnit fromDate:[dueDate date]];
NSInteger month = [components month];
use -[NSCalendar components:fromDate:] for instance the example here:
http://developer.apple.com/iphone/library/documentation/Cocoa/Reference/Foundation/Classes/NSCalendar_Class/Reference/NSCalendar.html
NSDateFormatter *dateFormat = [[[NSDateFormatter alloc] initWithDateFormat:#"%m" allowNaturalLanguage:NO] autorelease];
int month = [[dateFormat stringFromDate:dueDate] intValue];