To convert a particular format to NSDate [closed]

问题:

I am getting a date component from web service as @"2014-01-08T00:00:00.000Z". I need to convert it into a date only providing me with year , month and date. Please help

回答1:

Use this code to get the Current Date

NSDateFormatter *dateFor=[[NSDateFormatter alloc]init];
NSString *currentDateString = @"2014-01-08T21:21:22.737+05:30";

[dateFor setDateFormat:@"yyyy-MM-dd'T'HH:mm:ss.SSSZZZZ"];        
NSDate *currentDate = [dateFor dateFromString:currentDateString];

NSLog(@"CurrentDate:%@", currentDate);

回答2:

If you need the output year- month -date in like that format then use below code. Also you need to convert the format into specified below format:-

NSString *currentDateString = @"2014-01-08T00:00:00.000Z";
self.dateFormatter=[[NSDateFormatter alloc]init];
[self.dateFormatter setDateFormat:@"yyyy-MM-dd'T'HH:mm:ss.SSSZ"];
NSDate *currentDate = [self.dateFormatter dateFromString:currentDateString];
[self.dateFormatter setDateFormat:@"yyyy-MM-dd"];
    currentDateString=[self.dateFormatter stringFromDate:currentDate];
NSLog(@"CurrentDate:%@", currentDateString);

Output:-

CurrentDate:2014-01-08

回答3:

After getting the date from string again change the format of dateformatter and then get the string using formatter.

NSString *currentDateString = @"2014-01-08T21:21:22.737+05:30";

NSDateFormatter *dateFor=[[NSDateFormatter alloc]init];
[dateFor setDateFormat:@"yyyy-MM-dd'T'HH:mm:ss.SSSZZZZ"];        
NSDate *currentDate = [dateFor dateFromString:currentDateString];
[dateFor setDateFormat:@"MMMM dd, yyyy"];

// above format will show date as Dec 31, 2013 something like this
// can use other format as well like. [dateFor setDateFormat:@"yyyy-MM-dd"]

NSString *dateString =  [dateFor stringFromDate:currentDate];