iOS 获取某个时间段(2016.12)

#pragma mark---------------获取某个时间段----------------

- (NSDate*)getCustomDateWithHour:(NSInteger)hour

{

     //获取当前时间

     NSDate*currentDate = [NSDate date];

     NSCalendar*currentCalendar=[[NSCalendar alloc]initWithCalendarIdentifier:NSCalendarIdentifierGregorian];

     NSDateComponents*currentComps = [[NSDateComponents alloc]init];

     NSInteger unitFlags=NSCalendarUnitYear|NSCalendarUnitMonth|NSCalendarUnitDay|NSCalendarUnitWeekday|NSCalendarUnitHour|NSCalendarUnitMinute|NSCalendarUnitSecond;

     currentComps = [currentCalendar components:unitFlags fromDate:currentDate];

     NSLog(@"-----------weekday is %zd",[currentCompsweekday]);//在这里需要注意的是：星期日是数字1，星期一时数字2，以此类推。。。

   //设置当天的某个点

     NSDateComponents*resultComps=[[NSDateComponents alloc]init];

     [resultComps setYear:[currentComps year]];

     [resultComps setMonth:[currentComps month]];

     [resultComps setDay:[currentComps day]];

     [resultComps setHour:hour];

     NSCalendar*resultCalendar=[[NSCalendar alloc]initWithCalendarIdentifier:NSCalendarIdentifierGregorian];

     return [resultCalendar dateFromComponents: resultComps];

}

- (BOOL)isBetweenFromHour:(NSInteger)fromHour  toHour:(NSInteger)toHour

{

      NSDate*fromDate = [self getCustomDateWithHour:fromHour];

      NSDate*toDate = [self getCustomDateWithHour:toHour];

      NSDate*currentDate = [NSDate date];

      if([currentDate compare:fromDate] ==NSOrderedDescending&& [currentDate compare:toDate] ==NSOrderedAscending){

      NSLog(@"该时间在%ld:00-%ld:00之间！", (long)fromHour, (long)toHour);

      returnYES;

    } 

    returnNO;

}