TodoAppCollectionView Sample

Sample todo app with WWDC20 updates

• use CollectionView with list style (< iOS 14)
• use DiffableDataSource with CoreData (< iOS 13)
• use DatePicker (above iOS14, you can use this with new skin)
• use AccentColor (< iOS 14)
• use Menu (< iOS 14)

Reference

• CollectionView Sample by Apple
• How to use CoreData by me
• How to connect CoreData and DiffableDataSource by Julian
• Some other developer documents by Apple
• Movie