Question

我正在使用ActionSheetDatePicker作为时间选择器，我将选择器中的模式更改为UIDatePickerModeCountDownTimer以获取小时和分钟。它运行良好显示小时和分钟，但当我得到小时和分钟它返回我NSDate初始化。防爆。我选择了5分钟让我回归300，所以我得到了。这是代码：

    ActionSheetDatePicker *datePicker = [[ActionSheetDatePicker alloc] initWithTitle:@"Select a time" datePickerMode:UIDatePickerModeCountDownTimer selectedDate:self.selectedTime target:self action:@selector(ExtrTravelTimeWasSelected:element:) origin:sender];
    datePicker.minuteInterval = minuteInterval;
    [datePicker showActionSheetPicker];

和委托

- (void)ExtrTravelTimeWasSelected:(NSDate *)selectedTime element:(id)element {
    self.selectedTime = selectedTime;
}

那么有没有办法将300（ NSDate ）转换为Hr和Min？

Answer 1

如果我理解正确，你会在几秒钟内获得价值。尝试以下方法：

-(NSString *)getTimeStringFromSeconds:(double)seconds
{
  NSDateComponentsFormatter *dcFormatter = [[NSDateComponentsFormatter alloc] init];
  dcFormatter.zeroFormattingBehavior = NSDateComponentsFormatterZeroFormattingBehaviorPad;
  dcFormatter.allowedUnits = NSCalendarUnitHour | NSCalendarUnitMinute;
  dcFormatter.unitsStyle = 
  NSDateComponentsFormatterUnitsStylePositional;
 return [dcFormatter stringFromTimeInterval:seconds];
}

Answer 2

试试这个，我已经更新了你的代码，

- (void)ExtrTravelTimeWasSelected:(NSDate *)selectedTime element:(id)element {
    self.selectedTime = selectedTime;
   // Split up the date components
   NSDateComponents *time = [[NSCalendar currentCalendar]
                          components:NSCalendarUnitHour | NSCalendarUnitMinute
                          fromDate:selectedTime];
   NSLog(@"h:mm::%zd:%2zd",[time hour],[time minute]);

}

时间以NSDate格式出现

2 个答案: