objective-c - 不使用 NSDateFormatter 将日期转换为字符串

Question

如何在不使用 NSDateFormatter 的情况下将 NSDate 转换为 NSString？

供您引用我的代码如下，我将它用于我的提醒应用程序。

非常感谢。

 NSCalendar *calendar = [NSCalendar autoupdatingCurrentCalendar];

// Get the current date
NSDate *pickerDate = [self->dp date];



// Break the date up into components
NSDateComponents *dateComponents = [calendar components:( NSYearCalendarUnit | NSMonthCalendarUnit |  NSDayCalendarUnit )
                                               fromDate:pickerDate];
NSDateComponents *timeComponents = [calendar components:( NSHourCalendarUnit | NSMinuteCalendarUnit | NSSecondCalendarUnit )
                                               fromDate:pickerDate];

// Set up the fire time
NSDateComponents *dateComps = [[NSDateComponents alloc] init];
[dateComps setDay:[dateComponents day]];
[dateComps setMonth:[dateComponents month]];
[dateComps setYear:[dateComponents year]];
[dateComps setHour:[timeComponents hour]];
// Notification will fire in one minute
[dateComps setMinute:[timeComponents minute]];
[dateComps setSecond:[timeComponents second]];
NSDate *itemDate = [calendar dateFromComponents:dateComps];
[dateComps release];

Answer 1

根据你的问题可以这样获取-

NSString *stringDate = [NSString stringWithFormat:@"%@",pickerDate];
NSLog(@"%@",stringDate);

NSString *stringDate = [pickerDate description];
NSLog(@"%@", stringDate);

您还可以通过使用 NSDateFormatter 获取 NSString 为什么您害怕使用它？

NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"dd/MM/yyyy"];

NSString *stringDate = [dateFormatter stringFromDate:pickerDate];  
NSLog(@"%@", stringDate);