Question

如何给collectionView添加表头

Answer 1

//要先设置表头高度
-(CGSize)collectionView:(UICollectionView*)collectionView layout:(UICollectionViewLayout*)collectionViewLayout referenceSizeForHeaderInSection:(NSInteger)section
{

CGSize size = {kScreenWidth, 50};
return size;

}

//在表头内添加内容,需要创建一个继承collectionReusableView的类,用法类比tableViewcell
- (UICollectionReusableView *)collectionView:(UICollectionView *)collectionView viewForSupplementaryElementOfKind:(NSString *)kind atIndexPath:(NSIndexPath *)indexPath
{
// 注册表头
[collectionView registerClass:[MCClassifyCollectionReusableView class] forSupplementaryViewOfKind:UICollectionElementKindSectionHeader withReuseIdentifier:@"HeaderView"];

// 初始化表头
MCClassifyCollectionReusableView *headerView = [collectionView dequeueReusableSupplementaryViewOfKind:UICollectionElementKindSectionHeader withReuseIdentifier:@"HeaderView" forIndexPath:indexPath];
NSArray * array = @[@"1",@"2",@"3",@"4",@"5",@"6",@"7"];
headerView.hotSingerName.text = array[indexPath.section];

return headerView;
}