UICollectionView

Talk I did for TACOW on the basics of UICollectionView.

Transcript

1. UICollectionView Ash Furrow, Teehan+Lax
3. 1.UICollectionView is just like UITableView 2.UICollectionView separates layout from display 3.UICollectionView makes complex layouts easy
4. UICollectionView is just like UITableView...
   ! Except a little different.
5. UITableView • UITableView is one of the mainstays of iOS • UICollectionView will be one for iOS 7
6. Dequeuing Cells • UICollectionView works just like newer UITableView APIs • Register a class for a cell identifier • Later, dequeue a cell of that class for that identifier
7. Demo
8. UICollectionViewFlowLayoutDelegate • UICollectionView queries its delegate for info • Used to layout cells • Just like UITableViewDelegate
9. Demo
10. UICollectionView separates concerns.
    ! Layout, dequeuing, display
11. UICollectionView Layouts • UICollectionView separates layout from dequeuing logic • UITableView encapsulates both • Allows us to easily customize layout of cells
12. Demo
13. Custom Layout Attributes • We can even define our own layout attributes
14. Demo
15. UICollectionView makes complex layouts easy...
    ! Or at least possible.
16. UICollectionViewFlowLayout • Flow layouts provide a lot for you • Always try customizing them first
17. UICollectionViewLayout • UICollectionViewLayout is an abstract class • Subclass it to go Hands On™ • Makes complex layouts easy
18. Demo
19. 1.UICollectionView is just like UITableView 2.UICollectionView separates layout from display 3.UICollectionView makes complex layouts easy
21. Go buy my book
22. Ash Furrow @ashfurrow Thanks!