self.automaticallyAdjustsScrollViewInsets = NO;

@property (nonatomic ,strong) CHBannerView *bannerView;

- (void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath

/// 轮播图个数
- (NSInteger)numberOfItemsInBannerView:(CHBannerView *)bannerView;

/// 当前的轮播图,使用dequeue方法时使用index.取对应model使用orignalIndex.
/**
 获取当前Cell.getCurrentCell

 @param bannerView bannerView
 @param index 调用取cell的index
 @param orignalIndex 计算用的的index
 @return collectionViewCell
 */
- (UICollectionViewCell *_Nonnull)bannerView:(CHBannerView *_Nonnull)bannerView cellForItemAtIndex:(NSInteger)index orignalIndex:(NSInteger)orignalIndex;

[self.bannerView registerClass:[xxx class] forCellWithReuseIdentifier:@"XXXID"];

xxx *cell = [bannerView dequeueReusableCellWithReuseIdentifier:@"XXXID" forIndex:index];

/// 点击item的代理
- (void)bannerView:(CHBannerView *_Nonnull)bannerView didSelectItemAtIndex:(NSInteger)index;

/// 滚动到某个Item的代理.一般用来给PageControl赋值
- (void)bannerView:(CHBannerView *_Nonnull)bannerView scrollToItemAtIndex:(NSInteger)index numberOfPages:(NSInteger)numberOfPages;

/// 将要显示Cell代理.iOS8以上支持
- (void)bannerView:(CHBannerView *_Nonnull)bannerView willDisplayCell:(UICollectionViewCell *_Nonnull)cell forItemAtIndex:(NSInteger)index NS_AVAILABLE_IOS(8_0);

/// 自定义计算当前Page.
/// @param numberOfPages 计算用整个Pages(非dataSourcePage)
- (NSInteger)bannerView:(CHBannerView *_Nonnull)bannerView currentPageForScrollView:(UIScrollView *_Nonnull)scrollView flowLayout:(UICollectionViewFlowLayout *_Nonnull)flowLayout numberOfPages:(NSInteger)numberOfPages;

/// 自动滚动悬停位置代理
- (CGPoint)bannerView:(CHBannerView *_Nonnull)bannerView nextHoverPointForScrollView:(UIScrollView *_Nonnull)scrollView currentPage:(NSInteger)currentPage flowLayout:(UICollectionViewFlowLayout *_Nonnull)flowLayout numberOfPages:(NSInteger)numberOfPages;

/// 停止滚动时显示的Item
/// @param bannerView bannerView
/// @param index 停止的Page
/// @param orignalIndex 数据源对应的orignalIndex
- (void)bannerView:(CHBannerView *_Nonnull)bannerView showIndexWithoutScroll:(NSInteger)index orignalIndex:(NSInteger)orignalIndex;

// MARK: 轮播图有关
/// 是否允许自动滚动,默认为YES
@property (nonatomic ,assign) BOOL shouldAutoScroll;

/// 在数据源个数为1的时候是否停止自动滚动,默认为NO
@property (nonatomic ,assign) BOOL stopAutoScrollInSingleItem;

/// 是否无限轮播,默认为YES
@property (nonatomic ,assign) BOOL shouldInfiniteShuffling;

/// 在个数为1的时候取消无限轮播,默认为NO
@property (nonatomic ,assign) BOOL cancelInfiniteShufflingInSingleItem;


/// 自带PageControl有关(详情请参阅CHPageControl.自定义的话可以隐藏这个控件)
/// 滚动时间间距.默认为5s
@property (nonatomic ,assign) CGFloat timeInterval;

系统pagingEnabled被被我禁用了.如果自定义flowlayout.需要重写
- (CGPoint)targetContentOffsetForProposedContentOffset:(CGPoint)proposedContentOffset withScrollingVelocity:(CGPoint)velocity
方法去计算停止位置

- (void)viewWillAppear:(BOOL)animated {
    [super viewWillAppear:animated];
    self.navigationItem.title = [NSString stringWithFormat:@"%@" ,@(self.navigationController.viewControllers.count)];
    [self.bannerView startTimer];
}

- (void)viewWillDisappear:(BOOL)animated {
    [super viewWillDisappear:animated];
    [self.bannerView stopTimer];
}

if (@available(iOS 15.1, *)) {
	self.bannerView.scrollAnimationOption = CHBannerViewAnimationOptionCurveLinear;
} else if (@available(iOS 15.0, *)) {
	self.bannerView.scrollAnimationOption = CHBannerViewAnimationNone;
} else {
	self.bannerView.scrollAnimationOption = CHBannerViewAnimationOptionCurveLinear;
}

// 如横向滚动的banner
...
self.bannerViewContent.clipsToBounds = YES;
[self.view addSubview:self.bannerViewContent];
[self.bannerViewContent mas_makeConstraints:^(MASConstraintMaker *make) {
	make.top.equalTo(self.mas_topLayoutGuide).offset(12);
	make.left.right.offset(0);
		make.height.offset(190).multipliedBy(UIScreen.mainScreen.bounds.size.width / 375.0);
}];
...
[self.bannerViewContent addSubview:self.bannerView];
[self.bannerView mas_makeConstraints:^(MASConstraintMaker *make) {
	make.left.offset(-1.0);
	make.right.offset(1.0);
	make.top.bottom.offset(0);
}];
...