How can I enable/disable section headers in UICollectionView programmatically?
ios, uicollectionview, uicollectionviewcell
Solution
You can either use the `collectionView:layout:referenceSizeForHeaderInSection:` method of the `UICollectionViewDelegateFlowLayout` and return `CGSizeMake(0,0)` or set accordingly the `headerReferenceSize` of `UICollectionViewFlowLayout`.
Edit: `headerReferenceSize` is actually the property that storyboard uses to show/hide the headers. I've added the relevant lines from the Storyboard file
With section checkbox on:
<collectionViewFlowLayout key="collectionViewLayout" minimumLineSpacing="10" minimumInteritemSpacing="10" id="xAt-Uo-bMl">
<size key="headerReferenceSize" width="50" height="50"/></collectionViewFlowLayout>
With section checkbox off
<collectionViewFlowLayout key="collectionViewLayout" minimumLineSpacing="10" minimumInteritemSpacing="10" id="xAt-Uo-bMl">
<size key="headerReferenceSize" width="0" height="0"/></collectionViewFlowLayout>
Edit #2:
From the official docs:
Each section in a flow layout can have its own custom header and footer. To configure the header or footer for a view, you must configure the size of the header or footer to be non zero. You can do this by implementing the appropriate delegate methods or by assigning appropriate values to the headerReferenceSize and footerReferenceSize properties. If the header or footer size is 0, the corresponding view is not added to the collection view.
Problem
How can I enable/disable section headers in UICollectionView programmatically? It can be easily done easily done in Storyboard (checkbox), but how about doing it in code?