如何在UICollectionviewcontroller中显示文本字段？

Question

我检查了xcode中的页眉节和页脚节，我在UIcollectionviewcontroller中的该页眉中添加了一个文本字段 ，但是当应用运行时，它没有显示文本字段 ？为什么？

Answer 1

you should subclass UICollectionReusableView, add your outlet to the subclass, modify the reuse identifier of the header view in the storyboard and implement collectionView:viewForSupplementaryViewOfKind:atIndexPath from the datasource. check the apple documentation.

for example:

-(UICollectionReusableView *)collectionView:(UICollectionView *)collectionView viewForSupplementaryElementOfKind:(NSString *)kind atIndexPath:(NSIndexPath *)indexPath{

HeaderView *headerView = [collectionView dequeueReusableSupplementaryViewOfKind:UICollectionElementKindSectionHeader withReuseIdentifier:@"HeaderView" forIndexPath:indexPath];

//set the delegate of the textfield to the view controller
headerView.textField.delegate = self;

return headerView;
}