Question

现在可以使用此代码：

NSString *myDate = @"06/18/2015 8:26:17 AM";
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"MM/dd/yyyy hh:mm:ss a"];
[dateFormatter setLocale:[NSLocale localeWithLocaleIdentifier:@"en_US"]];
NSDate *date = [dateFormatter dateFromString:myDate];
[dateFormatter setDateFormat:@"dd.MM. HH:mm"];
NSString *dateString = [dateFormatter stringFromDate:date];
cell.timeLabel.text = dateString;

Answer 1

您必须将日期格式设置为字符串

NSString *myDate = @"06/18/2015 8:26:17 AM";
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"MM/dd/yyyy h:mm:ss a"];
NSDate *date = [dateFormatter dateFromString:myDate];
//Set New Date Format as you want
[dateFormatter setDateFormat:@"dd.MM. HH:mm"];
[dateFormatter setLocale:[NSLocale localeWithLocaleIdentifier:@"en_US"]];
NSLog(@"%@",[dateFormatter stringFromDate:date]);

Answer 2

我认为您的代码Dohi7没有任何问题，因为我测试了它并且使用@“dd.MM.HH：mm”和@“dd.MM.H：mm”两种格式正确显示日期。请通过在控制台中打印来再次检查dateFromString的值。

是的Ashish也是对的。您不需要分配数据对象，您可以直接使用dateFromString函数，该函数本身返回NSDate对象。

Answer 3

谢谢，现在它可以使用以下代码：

NSString *myDate = @"06/18/2015 8:26:17 AM";
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"MM/dd/yyyy hh:mm:ss a"];
[dateFormatter setLocale:[NSLocale localeWithLocaleIdentifier:@"en_US"]];
NSDate *date = [dateFormatter dateFromString:myDate];
[dateFormatter setDateFormat:@"dd.MM. HH:mm"];
NSString *dateString = [dateFormatter stringFromDate:date];
cell.timeLabel.text = dateString;

NSString到NSDate不起作用

3 个答案: