I have an NSString object that contains the string 2013-02-28. By default, the UIDatepicker shows the current date, but I want to show whatever date I had in the NSString object.
I am converting the NSString object into NSDate and I don't know how to set that date on UIDatePicker in UIDatePickerModeDate. How could I do this? I have tried the setDate: method, but it's not working.
This should work for you. You likely need to turn your NSString into a NSDate before sending it to the NSDatePicker. Keep in mind that you may need to set the Timezone of the NSDateFormater to avoid edge cases.
//Given self.datepicker is your UIDatePicker
NSString *dateString = #"2013-03-28";
NSTimeZone *timezone = [NSTimeZone systemTimeZone];
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setTimeZone:timeZone];
[dateFormatter setDateFormat:#"yyyy-MM-dd"];
NSDate *date = [dateFormatterGMTAware dateFromString:dateString];
self.datePicker.date = date;
-(IBAction)btnDateClicked:(id)sender{
theDatePicker = [[UIDatePicker alloc] initWithFrame:CGRectMake(0.0, 44.0, self.view.frame.size.width, 0.0)];
theDatePicker.datePickerMode = UIDatePickerModeDate;
theDatePicker.minimumDate=[NSDate date];
// ************To keep the selected date**********
NSString *dateString = [NSString stringWithFormat:#"%#",btnDate.titleLabel.text ];
NSTimeZone *timezone = [NSTimeZone systemTimeZone];
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setTimeZone:timezone];
[dateFormatter setDateFormat:#"yyyy-MM-dd"];
NSDate *date = [dateFormatter dateFromString:dateString];
theDatePicker.date = date;
}
Related
I want to use date format like this 2015-08-14 but unfortunately I am getting this format 16/11/15
Below is the code I have used to get desired output.
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:#"yyyy-MM-dd"];
NSTimeZone *gmt = [NSTimeZone timeZoneWithAbbreviation:#"GMT"];
[dateFormatter setTimeZone:gmt];
[dateFormatter setDateStyle:kCFDateFormatterShortStyle];
NSString *formattedDateString = [dateFormatter stringFromDate:selectedDate];
Can anyone please suggest how to fix this issue?
Just remove the line [dateFormatter setDateStyle:NSDateFormatterShortStyle];
-(NSString*)stringFromDateWithFormat:(NSString*)formatString{
NSDateFormatter* dateFormatter = [[NSDateFormatter alloc] init];
dateFormatter.timeZone = [NSTimeZone timeZoneForSecondsFromGMT:0];
dateFormatter.dateFormat = formatString;
return [dateFormatter stringFromDate:self];
}
NSDate *currDate = [NSDate date];
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc]init];
[dateFormatter setDateFormat:#"YYYY-MM-dd"];
NSString *dateString = [dateFormatter stringFromDate:currDate];
NSLog(#"date is %#",dateString);
NSDate *selectedDate = [NSDate date];
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:#"yyyy-MM-dd"];
NSTimeZone *gmt = [NSTimeZone timeZoneWithAbbreviation:#"GMT"];
[dateFormatter setTimeZone:gmt];
NSString *formattedDateString = [dateFormatter stringFromDate:selectedDate];
NSLog(#"formattedDateString = %#", formattedDateString); // Prints 2015-10-15
I am using the following code to get the NSString from date
NSDateFormatter *df = [[NSDateFormatter alloc] init];
df.dateStyle = kCFDateFormatterLongStyle;
df.timeStyle = kCFDateFormatterNoStyle;
df.doesRelativeDateFormatting = YES;
[df setLocale:[NSLocale currentLocale]];
[df setTimeZone:[NSTimeZone systemTimeZone]];
NSString *dateString=[df stringFromDate:myDate];
But it displaying like 'Today','Yesterday' even after changing Locale.I want to display the localized language of that also ?
I used your code and created this:
NSDate *yesterday;
NSTimeInterval interval;
NSCalendar *cal = [NSCalendar currentCalendar];
[cal rangeOfUnit:NSDayCalendarUnit
startDate:&yesterday
interval:&interval
forDate:[NSDate date]];
yesterday = [yesterday dateByAddingTimeInterval:-interval];
NSDateFormatter *df = [[NSDateFormatter alloc] init];
df.dateStyle = kCFDateFormatterLongStyle;
df.timeStyle = kCFDateFormatterNoStyle;
df.doesRelativeDateFormatting = YES;
[#[[NSLocale localeWithLocaleIdentifier:#"de_DE"], [NSLocale localeWithLocaleIdentifier:#"es_ES"],[NSLocale localeWithLocaleIdentifier:#"en_US"]] enumerateObjectsUsingBlock:^(NSLocale *locale, NSUInteger idx, BOOL *stop) {
[df setLocale:locale];
[df setTimeZone:[NSTimeZone systemTimeZone]];
NSString *dateString=[df stringFromDate:yesterday];
NSLog(#"%#", dateString);
}];
It outputs correctly
Gestern
ayer
Yesterday
Your problem must lay else-where.
Tested within a command-line program
Make sure that after you changed the language on device/simulator you kill the app completely before you open it again.
Hi I write this Function for LocalTime it Takes input of date as String and covert to Local Time String. May it help you
+(NSString*)LocalTimeWitheDateString:(NSString*)dateString{
NSDateFormatter *formatter = [[NSDateFormatter alloc]init];
NSTimeZone *timeZone = [NSTimeZone timeZoneForSecondsFromGMT:0];
[formatter setTimeZone:timeZone];
[formatter setDateFormat:#"yyyy-MM-dd HH:mm:ss"];
NSDate *date =[formatter dateFromString:dateString];
NSTimeZone *localTimeZone = [NSTimeZone localTimeZone];
[formatter setTimeZone:localTimeZone];
NSString *LnewTimeZoneDateString = [formatter stringFromDate:date];
return LnewTimeZoneDateString;
}
I want to find the time (in minutes) between a date with the "yyyy-MM-dd'T'HH:mm:ss" format (Sample:"2014-02-03T11:28:00") and current time (In GMT, as the string is in GMT. I tried
NSDateFormatter *formatter;
[formatter setDateFormat:#"yyyy-MM-dd'T'HH:mm:ss"];
NSDate *now = [NSDate date];
NSDate *trackingDataDate = [formatter dateFromString:timeStamp];
NSTimeInterval distance = [now timeIntervalSinceDate:trackingDataDate];
double timeInMinutes = distance / 60;
But this returns NaN. What is wrong with my code, how can I get the time between the events?
Simple mistake. You have miss allocation for NSDateFormatter. Add below line instead of NSDateFormatter *formatter;, It's working fine.
NSDateFormatter *formatter = [[NSDateFormatter alloc]init];
Update: According to your comment, see my below code for convert to GMT Date.
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
dateFormatter.dateFormat = #"yyyy-MM-dd'T'HH:mm:ss";
NSTimeZone *gmt = [NSTimeZone timeZoneWithAbbreviation:#"GMT"];
[dateFormatter setTimeZone:gmt];
NSString *timeStamp = [dateFormatter stringFromDate:[NSDate date]];
Try this:
NSString* string=#"26-01-2014";
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:#"dd-mm-yyyy"];
NSTimeZone *gmt = [NSTimeZone timeZoneWithAbbreviation:#"GMT"];
[dateFormatter setTimeZone:gmt];
NSDate *date = [dateFormatter dateFromString:string];
NSLog(#"Date = %#",date);
OK, I know I am missing something but I don't know what.
My NSDateFormmater comes up in the textField(personMonthdayTextField) with todays date but when I selected the datePicker and input it into the textField, it comes up with the standard format with the hours, minutes, seconds which I don't need.
Any help is appreciated.
Thanks
-(void)viewDidLoad {
NSDate* date = [NSDate date];
NSDateFormatter* formatter = [[NSDateFormatter alloc] init];
[formatter setDateFormat:#"dd/MMM/yyyy"];
NSString* str = [formatter stringFromDate:date];
NSLog(#"%#",str);
NSMutableArray *Arr=[str componentsSeparatedByString:#" "];
personMonthdayTextField.text=[Arr objectAtIndex:0];
}
- (IBAction)done:(id)sender {
NSDate *dateSelected = [datepick date];
NSString *dateStamp = [[NSString alloc]initWithFormat:#"%#", dateSelected];
personMonthdayTextField.text = dateStamp;
}
This will give you date only
NSDateFormatter *df = [[NSDateFormatter alloc] init];
df.dateStyle = NSDateFormatterMediumStyle;
datelabel.text = [NSString stringWithFormat:#"%#",
[df stringFromDate:[NSDate date]]];
Adapt this for your code under your IBAction method
just use NSDateFormatter in your IBAction
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc]init];
[dateFormatter setDateFormat:#"dd/MM/yyyy"];
NSDate *dateSelected = [datepick date];
personMonthdayTextField.text = [dateFormatter stringFromDate:dateSelected];
you can also tweak with formats of date give in Apple ios sdk ,easily to get desired format.
If you only want the day why don't you set the dateFormat as "dd", it would save the need to separate the components of dateString.
-(void)viewDidLoad {
NSDate* date = [NSDate date];
NSDateFormatter* formatter = [[NSDateFormatter alloc] init];
[formatter setDateFormat:#"dd"];
personMonthdayTextField.text = [formatter stringFromDate:date];
}
- (IBAction)done:(id)sender {
NSDate *dateSelected = [datepick date];
NSDateFormatter* formatter = [[NSDateFormatter alloc] init];
[formatter setDateFormat:#"dd"];
personMonthdayTextField.text = [formatter stringFromDate:date];
}
I'm parsing a JSON from my server, one of the values is a date like this: 2013-01-21 18:22:35 +00000
My problem is how to transform this date to the local time like 2013-01-21 12:22:35 -0600
I need to transform the date to other format?
Thanks!
EDIT.
Using the #Gabriele Petronella solution:
NSString * yourJSONString = #"2013-01-21 18:22:35 +0000";
NSTimeZone* localTimeZone = [NSTimeZone localTimeZone];
NSString* localAbbreviation = [localTimeZone abbreviation];
NSDateFormatter * dateFormatter = [[NSDateFormatter alloc] init];
NSLocale *locale = [[NSLocale alloc] initWithLocaleIdentifier:#"en_US_POSIX"];
[dateFormatter setLocale:locale];
[dateFormatter setDateFormat:#"yyyy-MM-dd H:mm:ss Z"];
NSDate *aDate = [dateFormatter dateFromString:yourJSONString];
NSTimeZone *timezone = [NSTimeZone timeZoneWithName:localAbbreviation];
[dateFormatter setTimeZone:timezone];
NSLog(#"%#", [dateFormatter stringFromDate:aDate]);
Everything works fine!
You use a NSDateFormatter to read the date from a NSString, then you can display the date changing the timezone using another (possibly the same) NSDateFormatter.
NSString * yourJSONString = #"2013-01-21 18:22:35 +0000";
NSDateFormatter * dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setTimeStyle:NSDateFormatterFullStyle
];
[dateFormatter setDateStyle:NSDateFormatterFullStyle];
NSDate * aDate = [dateFormatter dateFromString:yourJSONString];
NSTimeZone * timezone = [NSTimeZone timeZoneWithName:#"America/Chicago"];
[dateFormatter setTimeZone:timezone];
NSLog(#"%#", [dateFormatter stringFromDate:aDate);
Please note that the timezone is just a matter of display, whereas the NSDate object is just an abstraction to represent the date and it is independent by its displaying.
NSDateFormatter *dateFormatter=[[NSDateFormatter alloc] init]; [dateFormatter setDateFormat:#"yyyy-MM-dd hh:mm:ss"];
NSTimeZone *timeZone = [NSTimeZone localTimeZone]; [dateFormatter setTimeZone:timeZone];
NSString *myCurrentDeviceDate = [dateFormatter stringFromDate:[NSDate date]];