UICollectionView做水平滑动分页视图

九宫格实现水平滚动，系统的UICollectionView满足不了需求，参考网址点击打开链接

.h文件

.m文件

调用

SSLHorizontalPageFlowlayout *

flowLayout = [[SSLHorizontalPageFlowlayout alloc] initWithRowCount:3 itemCountPerRow:4];

 [flowLayout setItemSize:CGSizeMake((WIDTH)/4, (WIDTH)/4-10-20)];//设置cell的尺寸

[flowLayout setScrollDirection:UICollectionViewScrollDirectionVertical];//设置其布局方向

    

    flowLayout.minimumInteritemSpacing = 0; //定义左右cell的最小间距

    flowLayout.minimumLineSpacing = 0;//定义上下cell的最小间距

    flowLayout.sectionInset = UIEdgeInsetsMake(0, 0, 0, 0);//设置其边界

_collectionView = [[UICollectionView alloc] initWithFrame:CGRectMake(0, 5, WIDTH, ((WIDTH)/4-10-20)*3) collectionViewLayout:flowLayout];

_collectionView.dataSource = self;

    _collectionView.delegate = self;

    _collectionView.backgroundColor = [UIColor whiteColor];

    [_collectionView registerClass:[SSLHomeItemCell class] forCellWithReuseIdentifier:@"SSLHomeItemCell"];

    [self.view addSubview:_collectionView];