iOS projects for some solutions I'd like to share or not forget
TableHeaderView+Autolayout
Dynamic UITableView header's height based on content using Auto Layout.
IBInspectable+AccessibilityIdentifier
Demonstrates ability to set UIView's accessibilityIdentifier from interface builder via IBInspectable.
ICU plural rules
Demonstrates number plural form determination via ICU. Apple uses something like that to select correct string from .stringsdict. See Understanding iOS internationalization for details.
MDBottomSnappingCells
Special UICollectionView layout that makes cells stick to the bottom if there are not enough cells to fill it vertically.