我必须从字符串中获取日期，此处字符串的格式为“Monday 02,Dec 2013”，我必须将其转换为“2013-12-2”。我使用了以下代码，但我得到了错误的输出:
-(void)dateSelectedInPickerView:(NSString *)dateSelected{
NSDateFormatter *dateFormatterForGettingDate = [[NSDateFormatter alloc] init];
[dateFormatterForGettingDate setDateFormat:@"YYYY-MM-dd HH:mm:ss"];
// Parse the string representation of the date i.e Monday 2,Dec 2013
NSDate *dateFromStr = [dateFormatter dateFromString:dateSelected];
NSLog(@"date selected : %@",dateFromStr);
NSDateFormatter *tempFormatter=[[NSDateFormatter alloc]init];
[tempFormatter setDateFormat:@"YYYY-MM-dd"];
self.reservationDateSelected=[tempFormatter stringFromDate:dateFromStr];
NSLog(@"date Selected : %@",self.reservationDateSelected);
}
最佳答案
试试这个，它适用于 Monday 02,Dec 2013:
-(void)dateSelectedInPickerView:(NSString *)dateSelected{
NSDateFormatter *dateFormatterForGettingDate = [[NSDateFormatter alloc] init];
[dateFormatterForGettingDate setDateFormat:@"EEEE dd,MMM yyyy"];
[dateFormatterForGettingDate setLocale:[NSLocale localeWithLocaleIdentifier:@"EN"]];
// Parse the string representation of the date i.e Monday 2,Dec 2013
NSDate *dateFromStr = [dateFormatterForGettingDate dateFromString:dateSelected];
NSLog(@"date selected : %@", [dateFromStr descriptionWithLocale:[NSLocale currentLocale]]);
NSDateFormatter *tempFormatter=[[NSDateFormatter alloc]init];
[tempFormatter setDateFormat:@"yyyy-MM-dd"];
self.reservationDateSelected=[tempFormatter stringFromDate:dateFromStr];
NSLog(@"date Selected : %@",self.reservationDateSelected);
}
Read this, if want to know more about Date Format Patterns ;-)
关于ios - 从 Objective-C 中的字符串获取日期，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/20245484/