在项目开发中可能会遇到这样的问题，判断当前的时间是否在指定的时间段内。下面直接上代码：
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| - (BOOL)isBetweenFromHour:(NSInteger)fromHour toHour:(NSInteger)toHour
{
NSDate *dateFrom = [self getCustomDateWithHour:fromHour];
NSDate *dateTo = [self getCustomDateWithHour:toHour];
NSDate *currentDate = [NSDate date];
if ([currentDate compare:dateFrom]==NSOrderedDescending && [currentDate compare:dateTo]==NSOrderedAscending)
{
SLog(@"该时间在 %ld:00-%ld:00 之间！", (long)fromHour, (long)toHour);
return YES;
}
else
{
SLog(@"不在该时间段 %ld:00-%ld:00 之间！", (long)fromHour, (long)toHour);
return NO;
}
}
- (NSDate *)getCustomDateWithHour:(NSInteger)hour
{
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];
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];
}
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用法：
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[self isBetweenFromHour:9 toHour:20];
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