I am still kinda new to Objective C. I've searched and searched, applied everything that I've found and I STILL get nul returns.
NSDateFormatter *dateFormat = [[NSDateFormatter alloc] init];
[dateFormat setLocale:[NSLocale currentLocale]];
[dateFormat setDateFormat:#"dd/MM/yyyy"];
[dateFormat setFormatterBehavior:NSDateFormatterBehaviorDefault];
NSDate *date = [dateFormat dateFromString:#"08/24/2014"];
And all I get is nul. PLEASE HELP!
Your test string doesn't seem to match your format; if the format is "dd/MM/yyyy" then the string indicates a date on the 8th day of the 24th month of 2014.
Related
I need to get objects from parse that not older then a week.
i was trying it with
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:#"EEEE, MMMM d yyyy"];
NSDate *date = [object createdAt];
[dateFormatter stringFromDate:date]
Your code is a long way from working and shows some basic misunderstandings. I think you really need to go and learn about Objective-C and Cocoa/UIKit before you jump into Parse. However:
Parse has an automatic column called createdAt on all objects. You should use that.
I'm not sure about your definition of "a week ago" but to get a date exactly one week ago to the second use:
NSDate* date = [NSDate dateWithTimeIntervalSinceNow:-60*60*24*7];
There are more complex ways of doing this if you mean "midnight one week ago" or something like that but I'll leave this as is for the sake of clarity.
Pass this date to a PFQuery using the built in createdAt column:
PFQuery* q = [PFQuery queryWithClassName:[MyClass parseClassName]];
[q whereKey:#"createdAt" greaterThan:date];
Then issue the find:
[q findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
// here objects will contain your PFObject subclasses from the server
}];
I tried this :
NSDate *date = [NSDate date];
NSDateFormatter *dateFormat = [[NSDateFormatter alloc] init];
[dateFormat setDateFormat:#"YYYY-MM-dd hh:mm:ss TZD"];
NSString *dateString = [dateFormat stringFromDate:date];
NSLog(#"Current Date : %#",dateString);
and the result I get is Date and Time but not the Timezone.
#Vaibhav you have to use time zone like this
NSTimeZone *timeZone = [NSTimeZone localTimeZone];
refer this link
Get the time and date of selected time zone?
can anyone help me in getting the formatted date from the parsed XML.
I can format that using NSXML formatter but now i am found difficulty in using it through Google XMl parser. where i can get the values through the key but i need that in a formatted way,
return [NSDictionary dictionaryWithObjectsAndKeys:
[[[xmlItem elementsForName:#"title"] objectAtIndex:0] stringValue], #"title",
[[[xmlItem elementsForName:#"link"] objectAtIndex:0] stringValue], #"link",
[[[xmlItem elementsForName:#"pubDate"] objectAtIndex:0] stringValue], #"Date",
nil];
here the pubDate is returned as such from xml with hr,min,sec i need the date alone.
Thanks in advance!!!!
I got the answer
//cell.textLabel.text = [item objectForKey:#"pubDate"];
NSString *yourXMLDate = [item objectForKey:#"pubDate"];
NSDateFormatter *inputFormatter = [[NSDateFormatter alloc] init];
[inputFormatter setDateFormat:#"E, d LLL yyyy HH:mm:ss Z"];
NSDate *inputDate = [inputFormatter dateFromString:yourXMLDate];
NSDateFormatter *outputFormatter = [[NSDateFormatter alloc] init];
[outputFormatter setDateFormat:#"MMM dd, HH:mm a"];
NSString *outputDate = [outputFormatter stringFromDate:inputDate];
cell.textLabel.text=outputDate;
where this results in Oct 12, 12:30 AM. whatever parser used in the xcode this works fine....
I'm working on an iOS project, retrieving data from SQLite through JSON. The table has a datetime column called 'date'. When I retrieve the date in Xcode and printout the result, I see "2012-09-02T16:30:00Z". But when I try to convert it using NSDateFormatter, the result is null.
NSString *formatString = [NSDateFormatter dateFormatFromTemplate:#"EdMMM" options:0 locale:[NSLocale currentLocale]];
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:formatString];
NSString *dateString = [dateFormatter stringFromDate:categoryAtIndex.date];
NSLog(#"%# => %#", categoryAtIndex.date, dateString);
The above outputs:
2012-09-02T16:30:00Z => (null)
in stead of a nicely formatted datestring.
Any thoughts?
Thanks to mask8 I found the issue was related to another part of my code. I found this post on stackoverflow to solve the way to change the format of the date that I retrieved through JSON. I also found another post on stackoverflow describing how to handle conversions from a string to NSDate and vice versa.
I have a stringdate 16-MAY-2010 23:04:44 which i need to convert to gmt time zone that is the out put required is 17-May-2010 12:03:03.
I used date formatters to convert but the result i am getting is not in the format i required.I am sending the code please let me know if i am doing correct or not
Here is the code:
NSString *timeStamp = [format stringFromDate:[NSDate date]];
NSString *output = [timeConv dateStringFromString:timeStamp];
- (NSString *)dateStringFromString:(NSString *)sourceString
{
NSDateFormatter *dateFormatter = [[[NSDateFormatter alloc] init] autorelease];
[dateFormatter setFormatterBehavior:NSDateFormatterBehavior10_4];
[dateFormatter setDateFormat:#"dd-MMMM-yyyy HH:MM:ss"];
NSTimeZone *gmt = [NSTimeZone timeZoneWithAbbreviation:#"GMT"];
[dateFormatter setTimeZone:gmt];
NSDate *date = [dateFormatter dateFromString:sourceString];
return [dateFormatter stringFromDate:date];
}
The out put i am getting is the same old time without conversion. so please let me know the correct solution.
I know no cocoa whatsoever, but if I'm understanding your code correctly, you're never telling the parser that your original string is not GMT, but rather GMT-1.
Based on your own code (and again, with no knowledge of cocoa), this is what I believe you need to do:
NSTimeZone *gmtminusone = [NSTimeZone timeZoneForSecondsFromGMT:-3600.0];
[dateFormatter setTimeZone:gmtminusone];
NSDate *date = [dateFormatter dateFromString:sourceString];
NSTimeZone *gmt = [NSTimeZone timeZoneWithAbbreviation:#"GMT"];
[dateFormatter setTimeZone:gmt];
return [dateFormatter stringFromDate:date];
If it doesn't work right away, maybe it gives you the idea of what to do:
Parse the string with a date formatter set to GMT-1, to output a date.
Parse the date with a date formatter set to GMT, to output a string.
The date string didn't include a time zone specification, so the date formatter relied on you to tell it what time zone it's in.
NSTimeZone *gmt = [NSTimeZone timeZoneWithAbbreviation:#"GMT"];
[dateFormatter setTimeZone:gmt];
NSDate *date = [dateFormatter dateFromString:sourceString];
You told it that the input string was in GMT.
You need to tell the date formatter what time zone the date is in. Once you've done that, you can tell the formatter to convert the string to a date (dateFromString:), and it will interpret the string as representing a date in that time zone.
Then, once you have the date so interpreted, switch the formatter's time zone to GMT and have it output the string (stringFromDate:). That string will represent the date converted to GMT.