最近做專案要做一個類似淘寶淘搶購 的活動效果，就簡單做了一個demo。菜鳥水平～～～～
直接貼程式碼

- (void)viewDidLoad {
    [super viewDidLoad];
    self.view.backgroundColor = [UIColor whiteColor];

    _width = self.view.frame.size.width;

    [self.view addSubview:self.scrollerViewTime];
    self.scrollerViewTime.delegate = self;
    self
 
.scrollerViewTime.contentSize = CGSizeMake(_width * self.arrayTime.count / 5, 0);
    for (NSInteger i = 0; i < self.arrayTime.count; i++) {
        UIButton *button = [[UIButton alloc] initWithFrame:CGRectMake(_width / 5 * i, 0, _width / 5, 50)];
        button.tag = 100 + i;
        [button setTitle:self
 
.arrayTime[i] forState:UIControlStateNormal];
        button.backgroundColor = [UIColor colorWithWhite:0.2 alpha:1];
        [self.scrollerViewTime addSubview:button];
        [button addTarget:self action:@selector(clcikTimeButton:) forControlEvents:UIControlEventTouchUpInside];
        if (i == 0 || i == 1
 
 || i == self.arrayTime.count - 1 || i == self.arrayTime.count - 2) {
            button.enabled = NO;
        }

    }



    NSDate *date = [NSDate date];
    NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
    [formatter setDateFormat:@"HH:mm"];
    NSString *time = [formatter stringFromDate:date];
    NSLog(@"%@", time);
//    time = @"20:00";

    for (NSInteger i = 0;  i < self.arrayTime.count;  i ++) {
        NSComparisonResult result = [time compare:@"12:00"];
        if (result == NSOrderedAscending || result == NSOrderedSame) {
            NSComparisonResult newResult = [time compare:self.arrayTime[i]];
            if (newResult == NSOrderedSame || newResult == NSOrderedAscending) {
                self.scrollerViewTime.contentOffset = CGPointMake(_width / 5 * (i - 2), 0);
                break;
            }


        } else {
            NSComparisonResult newResult = [time compare:self.arrayTime[i]];
            if (newResult == NSOrderedSame || newResult == NSOrderedAscending) {
                self.scrollerViewTime.contentOffset = CGPointMake(_width / 5 * (i - 2), 0);
                self.collectionView.contentOffset = CGPointMake(_width * (i - 2), 0);
                break;
            }
        }
    }




    UIView *backView = [[UIView alloc] initWithFrame:CGRectMake(_width * 2/ 5 , 0, _width / 5, 50)];
    backView.backgroundColor = [UIColor redColor];
    backView.alpha = 0.6;
    [self.view addSubview:backView];


    [self.view addSubview:self.collectionView];
    self.collectionView.backgroundColor = [UIColor yellowColor];
    self.collectionView.pagingEnabled = YES;
//    self.collectionView.pa
    self.collectionView.delegate = self;
    self.collectionView.dataSource = self;
    self.collectionView.bounces = NO;


//    self.collectionView.scrollDirection

    // Do any additional setup after loading the view.
}


- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
    UICollectionViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"ActivCell" forIndexPath:indexPath];
    cell.backgroundColor = [UIColor colorWithRed:arc4random()%255 /255.0 green:arc4random()%255 /255.0 blue:arc4random()% 255/255.0 alpha:1];
    for (UIView *view in cell.contentView.subviews) {
        [view removeFromSuperview];
    }
    UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(50, 200, 200, 200)];
    label.text = [NSString stringWithFormat:@"第%ld張", indexPath.item];
    [cell.contentView addSubview:label];
    return cell;
}

- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section
{
    return self.arrayTime.count - 4;
}




- (UIScrollView *)scrollerViewTime
{
    if (!_scrollerViewTime) {
        _scrollerViewTime = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, 50)];
        _scrollerViewTime.backgroundColor = [UIColor colorWithWhite:0.2 alpha:1];
    }
    return _scrollerViewTime;
}

- (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView
{

    NSLog(@"%lf", scrollView.contentOffset.x);
    if ([scrollView isEqual:self.scrollerViewTime]) {
        CGFloat scrollX = self.scrollerViewTime.contentOffset.x;

        NSInteger page = scrollX * 5 / _width;
        CGFloat wide_space = scrollX - page * _width / 5;
        if (wide_space > _width / 10 && page < self.arrayTime.count - 1) {
            page = page + 1;
        }

        [UIView animateWithDuration:0.5 animations:^{
            self.collectionView.contentOffset = CGPointMake(_width * page, 0);
            self.scrollerViewTime.contentOffset = CGPointMake(_width / 5 * page, 0);
        }];

    }

}

- (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate
{
    if(!decelerate){
        //這裡複製scrollViewDidEndDecelerating裡的程式碼
        if ([scrollView isEqual:self.scrollerViewTime]) {
            CGFloat scrollX = self.scrollerViewTime.contentOffset.x;
            NSInteger page = scrollX * 5 / _width;
            CGFloat wide_space = scrollX - page * _width / 5;
            if (wide_space > _width / 10 && page < self.arrayTime.count - 1) {
                page = page + 1;
            }
            [UIView animateWithDuration:0.5 animations:^{
                self.collectionView.contentOffset = CGPointMake(_width * page, 0);
                self.scrollerViewTime.contentOffset = CGPointMake(_width / 5 * page, 0);
            }]; 
        }
    }
}

- (void)scrollViewDidScroll:(UIScrollView *)scrollView
{
    if ([scrollView isEqual:self.scrollerViewTime]) {

    } else {
        CGFloat collectionX = self.collectionView.contentOffset.x;
        self.scrollerViewTime.contentOffset= CGPointMake(collectionX / 5, 0);
    }

}



- (UICollectionView *)collectionView
{
    if (!_collectionView) {
        UICollectionViewFlowLayout *layout = [[UICollectionViewFlowLayout alloc] init];
        layout.itemSize = CGSizeMake(_width, self.view.frame.size.height - 100);
        layout.minimumLineSpacing = 0;
        layout.minimumInteritemSpacing = 0;

        layout.scrollDirection = UICollectionViewScrollDirectionHorizontal;
        _collectionView = [[UICollectionView alloc] initWithFrame:CGRectMake(0, 60, _width, self.view.frame.size.height - 100) collectionViewLayout:layout];
        [_collectionView registerClass:[UICollectionViewCell class] forCellWithReuseIdentifier:@"ActivCell"];
    }
    return _collectionView;
}
- (NSMutableArray *)arrayTime
{
    if (!_arrayTime) {
        NSArray *array = @[@"", @"", @"10:00",@"12:00",@"14:00",@"16:00",@"18:00",@"19:00",@"20:00",@"21:00",@"22:00",@"23:00",@"08:00",@"09:00",@"10:00",@"12:00",@"14:00",@"16:00",@"18:00",@"19:00",@"20:00",@"21:00",@"22:00",@"23:00",@"08:00",@"09:00", @"", @""];//可以自定義
        _arrayTime = [NSMutableArray arrayWithArray:array];
    }
    return _arrayTime;
}

- (void)clcikTimeButton:(UIButton *)sender
{
    CGFloat x = 0;
    x = _width / 5 * (sender.tag - 102);
    self.scrollerViewTime.contentOffset = CGPointMake(x, 0);
    self.collectionView.contentOffset = CGPointMake(x * 5, 0);
}
//有好方法以後在完善吧