Upgrade to Pro — share decks privately, control downloads, hide ads and more …

a lighter reusable cell

Avatar for Pin-Shih Wang Pin-Shih Wang
October 01, 2012
Programming
0
64

a lighter reusable cell

for TableView & CollectionView

https://github.com/wpsteak/MVCTableViewExample

Avatar for Pin-Shih Wang

Pin-Shih Wang

October 01, 2012
Tweet

More Decks by Pin-Shih Wang

See All by Pin-Shih Wang
iOS Extension
Avatar for Pin-Shih Wang wpsteak
4
470
A tip for using magical record
Avatar for Pin-Shih Wang wpsteak
0
130
CI with Git Flow
Avatar for Pin-Shih Wang wpsteak
2
240
Test With Xcode Server
Avatar for Pin-Shih Wang wpsteak
0
84

Other Decks in Programming

See All in Programming
CSC509 Lecture 09
Avatar for Javier Gonzalez-Sanchez javiergs
PRO
0
290
オンデバイスAIとXcode
Avatar for リョウ ryodeveloper
0
400
Swift Concurrency 年表クイズ
Avatar for omochimetaru omochi
3
220
Reactive Thinking with Signals and the Resource API
Avatar for Manfred Steyer manfredsteyer
PRO
0
120
CSC509 Lecture 08
Avatar for Javier Gonzalez-Sanchez javiergs
PRO
0
280
TransformerからMCPまで（現代AIを理解するための羅針盤）
Avatar for MIKIO KUBO mickey_kubo
7
6k
ボトムアップの生成AI活用を推進する社内AIエージェント開発
Avatar for aku11i aku11i
0
1.5k
The Past, Present, and Future of Enterprise Java
Avatar for ivargrimstad ivargrimstad
0
540
AkarengaLT vol.38
Avatar for hashimoto-kei hashimoto_kei
1
130
AI 駆動開発におけるコミュニティと AWS CDK の価値
Avatar for Kenji Kono konokenj
5
320
Researchlyの開発で参考にしたデザイン
Avatar for arakawa adsholoko
0
110
はじめてのDSPy - 言語モデルを『プロンプト』ではなく『プログラミング』するための仕組み
Avatar for Masahiro Nishimi masahiro_nishimi
4
18k

Featured

See All Featured
Building Adaptive Systems
Avatar for Chris Keathley keathley
44
2.8k
Docker and Python
Avatar for Tania Allard trallard
46
3.6k
Producing Creativity
Avatar for Steve Smith orderedlist
PRO
348
40k
The Art of Programming - Codeland 2020
Avatar for Erika Heidi erikaheidi
56
14k
Making Projects Easy
Avatar for Brett Harned brettharned
120
6.4k
ReactJS: Keep Simple. Everything can be a component!
Avatar for Pedro Nauck pedronauck
666
130k
[RailsConf 2023] Rails as a piece of cake
Avatar for Vladimir Dementyev palkan
57
6k
Put a Button on it: Removing Barriers to Going Fast.
Avatar for kastner kastner
60
4.1k
Site-Speed That Sticks
Avatar for Harry Roberts csswizardry
13
950
Gamification - CAS2011
Avatar for David Bonilla davidbonilla
81
5.5k
Fireside Chat
Avatar for paigeccino paigeccino
41
3.7k
Faster Mobile Websites
Avatar for Dean Hume deanohume
310
31k

Transcript

  1. a lighter reusable cell for TableView & CollectionView @wpsteak

  2. None

  3. TableView

  4. ViewController TableView

  5. ViewController TableView DataSource

  6. ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource

  7. ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource

  8. ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource TableCell

  9. ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource Get Cell

    TableCell

  10. ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource Get Cell

    TableCell

  11. ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource Get Cell

    Create UILabel1 TableCell

  12. ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource Get Cell

    Create UILabel1 Create UILabel2 TableCell

  13. ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource Get Cell

    Create UILabel1 Create UILabel2 Create Image1 TableCell

  14. ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource Get Cell

    Create UILabel1 Create UILabel2 Create Image1 Create Image2 TableCell

  15. ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource Get Cell

    Create UILabel1 Create UILabel2 Create Image1 Create Image2 Create Icon TableCell

  16. ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource Get Cell

    Create UILabel1 Create UILabel2 Create Image1 Create Image2 Create Icon return Cell TableCell

  17. ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource Get Cell

    Create UILabel1 Create UILabel2 Create Image1 Create Image2 Create Icon return Cell TableCell

  18. ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource Get Cell

    Create UILabel1 Create UILabel2 Create Image1 Create Image2 Create Icon return Cell TableCell

  19. ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource Get Cell

    Create UILabel1 Create UILabel2 Create Image1 Create Image2 Create Icon return Cell 10 Cells? TableCell

  20. ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource Get Cell

    Create UILabel1 Create UILabel2 Create Image1 Create Image2 Create Icon return Cell 10 Cells? 100 Cells? TableCell

  21. ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource Get Cell

    Create UILabel1 Create UILabel2 Create Image1 Create Image2 Create Icon return Cell 10 Cells? 100 Cells? 1000 Cells? TableCell

  22. ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource Get Cell

    Create UILabel1 Create UILabel2 Create Image1 Create Image2 Create Icon return Cell 10 Cells? 100 Cells? 1000 Cells? Add/remove subview every time? TableCell

  23. ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource Get Cell

    Create UILabel1 Create UILabel2 Create Image1 Create Image2 Create Icon return Cell 10 Cells? 100 Cells? 1000 Cells? Add/remove subview every time? TableCell

  24. ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource Get Cell

    Create UILabel1 Create UILabel2 Create Image1 Create Image2 Create Icon return Cell 10 Cells? 100 Cells? 1000 Cells? Add/remove subview every time? TableCell <reuse>

  25. Step1 move logic into cell

  26. None

  27. TableView

  28. ViewController TableView

  29. ViewController TableView DataSource

  30. ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource

  31. ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource

  32. TableCell ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource

  33. TableCell ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource Get

    Cell

  34. TableCell ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource Get

    Cell

  35. TableCell ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource Get

    Cell Create UILabel1

  36. TableCell ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource Get

    Cell Create UILabel1 Create UILabel2

  37. TableCell ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource Get

    Cell Create UILabel1 Create UILabel2 Create Image1

  38. TableCell ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource Get

    Cell Create UILabel1 Create UILabel2 Create Image1 Create Image2

  39. TableCell ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource Get

    Cell Create UILabel1 Create UILabel2 Create Image1 Create Image2 Create Icon

  40. TableCell ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource Get

    Cell Create UILabel1 Create UILabel2 Create Image1 Create Image2 Create Icon return Cell

  41. TableCell ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource Get

    Cell Create UILabel1 Create UILabel2 Create Image1 Create Image2 Create Icon return Cell

  42. TableCell ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource Get

    Cell Create UILabel1 Create UILabel2 Create Image1 Create Image2 Create Icon return Cell

  43. TableCell ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource Get

    Cell Create UILabel1 Create UILabel2 Create Image1 Create Image2 Create Icon return Cell 10 Cells?

  44. TableCell ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource Get

    Cell Create UILabel1 Create UILabel2 Create Image1 Create Image2 Create Icon return Cell 10 Cells? 100 Cells?

  45. TableCell ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource Get

    Cell Create UILabel1 Create UILabel2 Create Image1 Create Image2 Create Icon return Cell 10 Cells? 100 Cells? 1000 Cells?

  46. TableCell ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource Get

    Cell Create UILabel1 Create UILabel2 Create Image1 Create Image2 Create Icon return Cell 10 Cells? 100 Cells? 1000 Cells? Add/remove subview every time?

  47. TableCell ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource Get

    Cell Create UILabel1 Create UILabel2 Create Image1 Create Image2 Create Icon return Cell 10 Cells? 100 Cells? 1000 Cells? Add/remove subview every time? <reuse>

  48. TableCell ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource Get

    Cell Create UILabel1 Create UILabel2 Create Image1 Create Image2 Create Icon return Cell 10 Cells? 100 Cells? 1000 Cells? <reuse>

  49. TableCell ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource Get

    Cell Create UILabel1 Create UILabel2 Create Image1 Create Image2 Create Icon return Cell 10 Cells? 100 Cells? 1000 Cells? <reuse> prepareForReuse

  50. Step2 split logics

  51. TableViewCell / CollectionViewCell • Init UI • PrepareForReuse (reset UI)

    • SetupContent with DataModel (set data)
  52. None

  53. Controller

  54. Model Controller

  55. Model Controller PrepareDataList Model Model Model

  56. TableCell Model Controller PrepareDataList Model Model Model

  57. TableCell Model Controller PrepareDataList Model Model Model SetupContent Model Update

    UI

  58. TableCell Model Controller PrepareDataList Model Model Model prepare data handle

    user interaction data display SetupContent Model Update UI

  59. - (void)initControl { init UI… } - (void)setupContent:(id)data { update

    UI with new content } - (void)prepareForReuse { [super prepareForReuse]; reset UI reset logic } Sample
  60. None

  61. TableView

  62. ViewController TableView

  63. ViewController TableView DataSource

  64. ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource

  65. ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource

  66. TableCell ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource

  67. TableCell ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource Get

    Cell

  68. TableCell ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource Get

    Cell (init Control at first time) Create UILabel1 Create UILabel2 Create Image1 Create Image2 Create Icon

  69. TableCell ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource Get

    Cell (init Control at first time) Create UILabel1 Create UILabel2 Create Image1 Create Image2 Create Icon set Data

  70. TableCell ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource Get

    Cell prepareForReuse setup Content update UI set Data

  71. TableCell ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource Get

    Cell return Cell prepareForReuse setup Content update UI set Data

  72. TableCell ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource Get

    Cell return Cell prepareForReuse setup Content update UI set Data

  73. TableCell ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource Get

    Cell return Cell 10 Cells prepareForReuse setup Content update UI set Data

  74. TableCell ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource Get

    Cell return Cell 10 Cells 100 Cells prepareForReuse setup Content update UI set Data

  75. TableCell ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource Get

    Cell return Cell 10 Cells 100 Cells 1000 Cells prepareForReuse setup Content update UI set Data

  76. TableCell ViewController - (UITableViewCell *) tableView: cellForRowAtIndexPath: TableView DataSource Get

    Cell return Cell 10 Cells 100 Cells 1000 Cells <reuse> prepareForReuse setup Content update UI set Data

  77. • init UIView once and only once • reset UI

    and necessary logic in prepareForReuse: method

  78. End