ios - 如何使用格式化程序将字符串日期转换为 nsdate？

Question

我遵循 stackOverflow 的答案并编写代码，但我不知道发生了什么。它不起作用。PLZ，任何人都可以为我解决它。我使用愚弄代码....

        NSMutableArray *movieDate;
    NSArray *temp1 = [_dicUpcomingMovie objectForKey:@"results"];
    for (NSDictionary *temp2 in temp1)
    {
        NSDateFormatter *formatter = [[NSDateFormatter alloc]init];

        NSString *datestring = [temp2 valueForKey:@"release_date"];
        //NSDate *myDate = [[NSDate alloc]init];
        [formatter setDateFormat:@"dd MMM,YYYY"];
        NSDate *date = [formatter dateFromString:datestring];
        NSLog(@"%@",date);
        [movieDate addObject:date];
        NSLog(@"%@",movieDate);
    }

就是这样。上面的代码不起作用 myDate 对象仍然为零

Answer 1

我认为这datestring与您指定的格式不符。请参阅NSDateFormatter完整示例。

Answer 2

    NSMutableArray *movieDate=[[NSMutableArray alloc]init];;
   NSArray *temp1 = [_dicUpcomingMovie objectForKey:@"results"];
  NSDateFormatter *formatter = [[NSDateFormatter alloc]init];
    for (int i=0 ;i<temp1.count;i++)
  {


    NSString *datestring = [[temp1   objectatindex:i]valueForKey:@"release_date"];

  [serverFormatter setTimeZone:[NSTimeZone localTimeZone]];
  [serverFormatter setDateFormat:@"dd,MMM,YYYY"];
   NSDate *date = [serverFormatter dateFromString:dateString1];

    [movieDate addObject:date];

}
   NSLog(@"%@",movieDate);

Answer 3

尝试这个，

NSMutableArray *movieDate;
    NSArray *temp1 = [_dicUpcomingMovie objectForKey:@"results"];
    for (NSDictionary *temp2 in temp1)
    {
        NSDateFormatter *formatter = [[NSDateFormatter alloc]init];

        NSString *datestring = [temp2 valueForKey:@"release_date"];
        //NSDate *myDate = [[NSDate alloc]init];
        [formatter setDateFormat:@"dd MM,YYYY"];
        NSDate *date = [formatter dateFromString:datestring];
        NSLog(@"%@",date);
        [movieDate addObject:date];
        NSLog(@"%@",movieDate);
    }