记录笔记－关于CollectionView的表头表尾的配置

最新推荐文章于 2020-11-25 10:30:21 发布

原创最新推荐文章于 2020-11-25 10:30:21 发布 · 1.7k 阅读

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这篇博客详细介绍了如何在UICollectionView中设置垂直滚动方向，并配置item的大小、间距和边距。重点在于设置collectionView的布局属性，包括header和footer的大小，并通过代理方法定制section头部视图的内容。

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    bottemLayout = [[UICollectionViewFlowLayout alloc]init];
    // 垂直滚动(默认)
    bottemLayout.scrollDirection = UICollectionViewScrollDirectionVertical;
    bottemLayout.itemSize = CGSizeMake(DeviceWidth/2,GoodCell_Height);
    //item的列间距
    bottemLayout.minimumInteritemSpacing = 0;
    //item的行间距
    bottemLayout.minimumLineSpacing = 0 ;
    bottemLayout.sectionInset = UIEdgeInsetsMake(0, 0, 0, 0);
    
    // 这两句是必须要的
    bottemLayout.headerReferenceSize = CGSizeMake(0,BannerHeight + menuCount_Row * MenuHeight_Row+50 + 50 + MiaoPaiList_Height+MiaoPaiSingle_Height +ThreeHeight_Height +50 + 15);
    bottemLayout.footerReferenceSize = CGSizeMake(0 , 0);
    
    
    goodsListCollectionView = [[UICollectionView alloc]initWithFrame:CGRectMake(0, 0 , DeviceWidth, DeviceHeight - 64) collectionViewLayout:bottemLayout];
    goodsListCollectionView.backgroundColor =[UIColor clearColor];
    goodsListCollectionView.delegate =self;
    goodsListCollectionView.dataSource = self;
    goodsListCollectionView.showsVerticalScrollIndicator =NO;
    goodsListCollectionView.showsHorizontalScrollIndicator = NO;
    [self.view addSubview:goodsListCollectionView];
    
    
    [goodsListCollectionView registerClass:[UICollectionViewCell class] forCellWithReuseIdentifier:@"goods"];
    
     // 这两句是必须要的
    [goodsListCollectionView registerClass:[CustomCollectionHeader class] forSupplementaryViewOfKind:UICollectionElementKindSectionHeader withReuseIdentifier:@"myhead"];
// 代理方法进行配置
-(UICollectionReusableView*)collectionView:(UICollectionView *)collectionView viewForSupplementaryElementOfKind:(NSString *)kind atIndexPath:(NSIndexPath *)indexPath
{

        CustomCollectionHeader * headerView =[goodsListCollectionView dequeueReusableSupplementaryViewOfKind:UICollectionElementKindSectionHeader withReuseIdentifier:@"myhead" forIndexPath:indexPath];
        
        
        headerView.layer.masksToBounds = YES;
        
    [headerView initModelWith_height:BannerHeight + menuCount_Row * MenuHeight_Row+50 + 50 + MiaoPaiList_Height+MiaoPaiSingle_Height +ThreeHeight_Height +50 + 15 WithModelDic:nil];
    
    
        return headerView;
        

}