Arale is a custom stretchable header view for UIScrollView or any its subclasses with UIActivityIndicatorView support for reloading your content. Built for iOS 10 and later.
Features:
- Compatible with UITableView, UICollectionView, or any UIScrollView subclasses.
- Data source and delegate independency: can be added to an existing view controller without interfering with your existing delegate or dataSource.
- No need to subclass a custom view controller or to use a custom UICollectionViewLayout.
