ios - 如何将字符串日期和时间格式化为2012年12月4日星期二下午5:30

Question

对于将日期和时间字符串转换为Tuesday 4 December 2012,5:30 PM中的(Objective c)，我有一个小疑问

NSString *str = [detailsdict objectForKey:@"doc_appointments_Time"];
//time format is 5:30:00 PM

NSString *dateandtime=[NSString stringWithFormat:@"%@, %@",[detailsdict objectForKey:@"doc_appointments_Date"],str];
//date format is 10/25/2016

cell.detailTextLabel.text=dateandtime;

Answer 1

为此，首先需要合并日期和时间字符串，然后使用NSDateFormatter生成所需格式的日期。

NSString *stringDate = [NSString stringWithFormat:@"%@ %@",[detailsdict objectForKey:@"doc_appointments_Date"], [detailsdict objectForKey:@"doc_appointments_Time"]];
NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
[formatter setDateFormat:@"MM/dd/yyyy hh:mm:ss a"];
NSDate *date = [formatter dateFromString:stringDate];
[formatter setDateFormat:@"EEEE d MMMM yyyy,h:mm a"];
NSString *formattedDate = [formatter stringFromDate:date];