选择当前时间的下一分钟

//选择当前时间的下一分钟 NSDate *now = [NSDate date]; NSCalendar *calendar = [NSCalendar currentCalendar]; NSUInteger unitFlags = NSYearCalendarUnit |NSMonthCalendarUnit | NSDayCalendarUnit | NSHourCalendarUnit |NSMinuteCalendarUnit | NSSecondCalendarUnit; NSDateComponents *dateComponent = [calendar components:unitFlags fromDate:now]; NSInteger currentMinute = [dateComponent minute]+1; NSUInteger minute_count = self.minute_array.count; for (int i = 0; i < minute_count; i++) { if ([self.minute_array[i] integerValue] > currentMinute) { [self.date_picker selectRow:i inComponent:2 animated:YES]; self.minute_str = self.minute_array[i]; break; } }