1.新建2个view继承自UICollectionReusableView
2.view里实现你想展现的控件
3.viewdidload里实现
[self.collectionView registerClass:[HeadView class] forSupplementaryViewOfKind:UICollectionElementKindSectionHeader withReuseIdentifier:@"head"];
[self.collectionView registerClass:[FootView class] forSupplementaryViewOfKind:UICollectionElementKindSectionFooter withReuseIdentifier:@"foot"];
4.实现方法：
- (UICollectionReusableView *)collectionView:(UICollectionView *)collectionView viewForSupplementaryElementOfKind:(NSString *)kind atIndexPath:(NSIndexPath *)indexPath
{
if (kind == UICollectionElementKindSectionHeader) {
HeadView * headerView = [collectionView dequeueReusableSupplementaryViewOfKind:kind withReuseIdentifier:@"head" forIndexPath:indexPath];
headerView.imageView.image=[UIImage imageNamed:@"xxx"];
return headerView;
}
FootView * footerView = [collectionView dequeueReusableSupplementaryViewOfKind:kind withReuseIdentifier:@"foot" forIndexPath:indexPath];
footerView.imageView.image=[UIImage imageNamed:@"xxx"];
return footerView;
}
...........................................................
用xib来实现方法如下：
//注册headerView Nib的view需要继承UICollectionReusableView
[self.collectionView registerNib:[UINib nibWithNibName:@"xxx" bundle:nil] forSupplementaryViewOfKind:UICollectionElementKindSectionHeader withReuseIdentifier:@"head"];
//注册footerView Nib的view需要继承UICollectionReusableView
[self.collectionView registerNib:[UINib nibWithNibName:@"xxx" bundle:nil] forSupplementaryViewOfKind:UICollectionElementKindSectionFooter withReuseIdentifier:@"foot"];
实现方法：
- (UICollectionReusableView *)collectionView:(UICollectionView *)collectionView viewForSupplementaryElementOfKind:(NSString *)kind atIndexPath:(NSIndexPath *)indexPath
{
NSString * reuseIdentifier;
if ([kind isEqualToString: UICollectionElementKindSectionFooter ]){
reuseIdentifier = @"foot";
}else{
reuseIdentifier = @"head";
}
UICollectionReusableView *view = [collectionView dequeueReusableSupplementaryViewOfKind :kind withReuseIdentifier:reuseIdentifier forIndexPath:indexPath];
//控件绑定tag
UILabel *label = (UILabel *)[view viewWithTag:1];
if ([kind isEqualToString:UICollectionElementKindSectionHeader]){
label.text = [NSString stringWithFormat:@"这是header:%ld",(long)indexPath.section];
}
else if ([kind isEqualToString:UICollectionElementKindSectionFooter]){
view.backgroundColor = [UIColor lightGrayColor];
label.text = [NSString stringWithFormat:@"这是footer:%ld",(long)indexPath.section];
}
return view;
}