轉(zhuǎn)換函數(shù) 將傳入的小時和分鐘 轉(zhuǎn)換成當日的date 例如傳入 8:00 的str 返回 2013-01-01 08:00 的nsdate

-(NSDate *)CurrentDayTime:(NSString *)dataStr

{

//設(shè)置轉(zhuǎn)換的format

NSDateFormatter *dateFormatter = [[NSDateFormatter alloc]init];

[dateFormatter setLocale:[NSLocale currentLocale]];



[dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm"];

//獲取當前年月日

NSDate *currentdate = [NSDate date];

NSCalendar *calendar = [NSCalendar currentCalendar];

NSDateComponents *components = [calendar components:(

                                                    NSYearCalendarUnit  |

                                                    NSMonthCalendarUnit |

                                                    NSDayCalendarUnit |

                                                    NSHourCalendarUnit |

                                                    NSMinuteCalendarUnit

                                                    ) fromDate:currentdate];

NSInteger year = [components year];

NSInteger month = [components month];

NSInteger day = [components day];

NSString *strDate = [NSString stringWithFormat:@"%d-%d-%d %@",year,month,day,dataStr];

NSDate *date = [dateFormatter dateFromString:strDate];

return date;

}

-(BOOL)checkCanDinner

{

NSDate *currentDate = [NSDatedate];

if ([currentDate compare:[selfCurrentDayTime:@"08:59"]] == NSOrderedDescending //late

    && [currentDate compare:[selfCurrentDayTime:@"13:59"]] == NSOrderedAscending //early

    )

{

    //9:00-14:00 可以訂餐

    return YES;

}

else if([currentDatecompare:[self CurrentDayTime:@"09:00"]] ==NSOrderedAscending //early

        && [currentDate compare:[selfCurrentDayTime:@"00:00"]] ==  NSOrderedDescending//late

        )

{

    HFAlert(@"因較多餐廳休息,9:00之前掌上餐廳不接收訂餐,為您帶來的不便請諒解。");

    return NO;

}

else if([currentDatecompare:[self CurrentDayTime:@"17:59"]] ==NSOrderedAscending //early

        && [currentDate compare:[selfCurrentDayTime:@"14:00"]] ==  NSOrderedDescending//late

        )

{

    HFAlert(@"因較多餐廳休息,14:00以后掌上餐廳僅接收晚餐訂餐,為您帶來的不便請諒解。");

    return YES;

}

else if([currentDatecompare:[self CurrentDayTime:@"21:00"]] ==NSOrderedAscending //early

        && [currentDate compare:[selfCurrentDayTime:@"18:00"]] ==  NSOrderedDescending//late

        )

{

    //接受晚上的訂單

    return YES;

}

else if([currentDatecompare:[self CurrentDayTime:@"23:59"]] ==NSOrderedAscending //early

        && [currentDate compare:[selfCurrentDayTime:@"21:00"]] ==  NSOrderedDescending//late

        )

{

    HFAlert(@"因較多餐廳休息,21:00以后掌上餐廳不接收訂餐,為您帶來的不便請諒解。");

    return NO;

}

return YES;

}

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