위임이 하위 뷰로 신속하게 작동하지 않습니다.

편집 : 누군가 이것이 다른 질문의 중복이라고 제안했습니다. 내가 구현 한 것이 아닙니다.
-(NSInteger) tableView : (UITableView *) tableView numberOfRowsInSection : (NSInteger) section // (물론 신속하게).
ViewController에서 프로그래밍 방식으로 tableView를 만들고 하위 뷰로 추가합니다. 두 개의 확장을 통해 UITableViewDelegate 및 UITableViewDataSource를 채택하는 DataSource라는 클래스가 있습니다.
여기에 주어진 예를 따르고 있습니다.
오류가 발생합니다.
ViewController tableView : numberOfRowsInSection :] : 인식 할 수없는 선택기가 0x7f88cc406ac0 인스턴스로 전송되었습니다.
0x7f88cc406ac0은 포함하는 ViewController의 주소입니다.
포함하는 ViewController가 확장을 통해 UITableViewDelegate를 채택하고 tableView : numberOfRowsInSection의 DataSource 구현을 호출하더라도 여전히 오류가 표시됩니다.
아이디어?
UIKit 가져 오기
class GenericDataSource : NSObject {
let identifier = "cell"
var array : [Any] = [ "Dogs", "Cats", "Mice"]
func registerCells (forTableView tableView : UITableView) {
tableView.register (UITableViewCell.self, forCellReuseIdentifier : 식별자)
// tableView.register (UINib (nibName : "", 번들 : nil), forCellReuseIdentifier : 식별자)
}
func loadCell (atIndexPath indexPath : IndexPath, forTableView tableView : UITableView)-> UITableViewCell {
// let cell = tableView.dequeueReusableCell (withIdentifier : identifier, for : indexPath)
let cell : UITableViewCell = UITableViewCell (style : UITableViewCellStyle.subtitle, reuseIdentifier : "cell")
cell.textLabel! .text = array [indexPath.row] as? 끈
리턴 셀
}
}
// UITableViewDataSource
extension GenericDataSource : UITableViewDataSource {
func numberOfSections (in tableView : UITableView)-> Int {
반환 0
}
func tableView (_ tableView : UITableView, numberOfRowsInSection 섹션 : Int)-> Int {
array.count 반환
}
func tableView (_ tableView : UITableView, cellForRowAt indexPath : IndexPath)-> UITableViewCell {
return self.loadCell (atIndexPath : indexPath, forTableView : tableView)
}
}
// UITableViewDelegate
extension GenericDataSource : UITableViewDelegate {
func tableView (_ tableView : UITableView, expectedHeightForRowAt indexPath : IndexPath)-> CGFloat {
UITableViewAutomaticDimension 반환
}
func tableView (_ tableView : UITableView, heightForRowAt indexPath : IndexPath)-> CGFloat {
UITableViewAutomaticDimension 반환
}
func tableView (_ tableView : UITableView, didSelectRowAt indexPath : IndexPath) {
}
}
프로토콜 GenericDataSourceDelegate : class {
// 콜백 메서드 위임
}
확장 ViewController : UITableViewDelegate {
func numberOfSections (in tableView : UITableView)-> Int {
return self.dataSource.numberOfSections (in : tableView)
}
func tableView (_ tableView : UITableView, numberOfRowsInSection 섹션 : Int)-> Int {
return dataSource.tableView (tableView, numberOfRowsInSection : section)
}
func tableView (_ tableView : UITableView, cellForRowAt indexPath : IndexPath)-> UITableViewCell {
return dataSource.tableView (tableView, cellForRowAt : indexPath)
}
}
func requestTableView ()-> UITableView {
return UITableView (프레임 : UIScreen.main.bounds, 스타일 : UITableViewStyle.plain)
}
class ViewController : UIViewController {
var tableView : UITableView?
var dataSource = GenericDataSource ()
override func viewDidLoad () {
super.viewDidLoad ()
tableView = requestTableView ()
if (tableView! = nil) {
self.tableView! .delegate = self
self.tableView! .dataSource = dataSource
self.view.addSubview (self.tableView!)
}
}
}
여기에 요청 된대로 전체 오류 메시지가 있습니다.
2018-03-09 08 : 37 : 52.479763-0800 Job [3560 : 6187366]-[Job.ViewController tableView : numberOfRowsInSection :] : 인식 할 수없는 선택기가 인스턴스 0x7f9164c065b0으로 전송되었습니다.
2018-03-09 08 : 37 : 52.623521-0800 Job [3560 : 6187366] * 포착되지 않은 예외 'NSInvalidArgumentException'으로 인해 앱 종료, 이유 : '-[Job.ViewController tableView : numberOfRowsInSection :] : 인식 할 수없는 선택기가 인스턴스 0x7f9164c065b0으로 전송되었습니다.
* 첫 번째 호출 스택 :
(
0 CoreFoundation 0x00000001089fc12b 예외 전처리 + 171
1 libobjc.A.dylib 0x0000000104d08f41 objc_exception_throw + 48
2 CoreFoundation 0x0000000108a7d024-[NSObject (NSObject) doesNotRecognizeSelector :] + 132
3 UIKit 0x00000001057d8f51-[UIResponder doesNotRecognizeSelector :] + 295
4 CoreFoundation 0x000000010897ef78 ___forwarding_ + 1432
5 CoreFoundation 0x000000010897e958 _CF_forwarding_prep_0 + 120
6 UIKit 0x0000000105713b4c-[UITableView _numberOfRowsInSection :] + 62
7 UIKit 0x00000001059c60e1-[UISectionRowData refreshWithSection : tableView : tableViewRowData :] + 2389
8 UIKit 0x00000001059cc5ab-[UITableViewRowData rectForFooterInSection : heightCanBeGuessed :] + 487
9 UIKit0x00000001059cc711-[UITableViewRowData heightForTable] + 61
10 UIKit 0x00000001056c1a65-[UITableView _updateContentSize] + 372
11 UIKit 0x00000001056f267d-[UITableView _rebuildGeometry] + 66
12 UIKit 0x00000001056f003c-[UITableView didMoveToWindow] + 145
13 UIKit 0x000000010566d147-[UIView (Internal) _didMoveFromWindow : toWindow :] + 1748
14 UIKit 0x0000000105686a81-[UIScrollView _didMoveFromWindow : toWindow :] + 84
15 UIKit 0x000000010565f1e1 45- [UIView (Hierarchy) _postMovedFromSuperview :] _ block_invoke + 151
16 UIKit 0x000000010565f0c8-[UIView (Hierarchy) _postMovedFromSuperview :] + 828
17 UIKit 0x000000010566fcbd-[UIView (Internal) _addSubview : positioned : relativeTo :] + 1973
18 UIKit 0x0000000105618aa2-[UIWindow addRootViewControllerViewIfPossible] + 845
19 UIKit 0x0000000105618ed7-[UIWindow _setHidden : forced :] + 294
20 UIKit 0x000000010562be54-[UIWindow makeKeyAndVisible] + 42
21 UIKit 0x000000010559e8b8-[UIApplication _callInitializationDelegatesForMainScene : transitionContext :] + 4737
22 UIKit 0x00000001055a3aeb-[UIApplication _runWithMainScene : transitionContext : completion :] + 1720
23 UIKit 0x000000010596d6f8 __111-[__ UICanvasLifecycleMonitor_Compatability _scheduleFirstCommitForScene : transition : firstActivation : completion :] _ block_invoke + 924
24 UIKit 0x0000000105d434c8 + [_ UICanvas _enqueuePostSettingUpdateTransactionBlock :] + 153
25 UIKit 0x000000010596d2f1-[__ UICanvasLifecycleMonitor_Compatability _scheduleFirstCommitForScene : transition : firstActivation : 완료 :] + 249
26 UIKit 0x000000010596db6b-[__ UICanvasLifecycleMonitor_Compatability activateEventsOnly : withContext : completion :] + 696
27 UIKit 0x00000001062eba69 __82-[_ UIApplicationCanvas _transitionLifecycleStateWithTransitionContext : completion :] _ block_invoke + 262
28 UIKit 0x00000001062eb922-[_ UIApplicationCanvas _transitionLifecycleStateWithTransitionContext : completion :] + 444
29 UIKit 0x0000000105fc89c8 __125-[_ UICanvasLifecycleSettingsDiffAction performActionsForCanvas : withUpdatedScene : settingsDiff : fromSettings : transitionContext :] _ block_invoke + 221
30 UIKit 0x00000001061c7b06 _performActionsWithDelayForTransitionContext + 100
31 UIKit 0x0000000105fc888b-[_ UICanvasLifecycleSettingsDiffAction performActionsForCanvas : withUpdatedScene : settingsDiff : fromSettings : transitionContext :] + 231
32 UIKit 0x0000000105d42b25-[_ UICanvas scene : didUpdateWithDiff : transitionContext : completion :] + 392
33 UIKit 0x00000001055a236a-[UIApplication workspace : didCreateScene : withTransitionContext : completion :] + 523
34 UIKit 0x0000000105b7d605-[UIApplicationSceneClientAgent 장면 : didInitializeWithEvent : completion :] + 369
35 FrontBoardServices 0x000000010a8bfcc0-[FBSSceneImpl _didCreateWithTransitionContext : completion :] + 338
36 FrontBoardServices 0x000000010a8c87b5 __56- [FBSWorkspace client : handleCreateScene : withCompletion :] _ block_invoke_2 + 235
37 libdispatch.dylib 0x0000000109b1e33d _dispatch_client_callout + 8
38 libdispatch.dylib 0x0000000109b239f3 _dispatch_block_invoke_direct + 592
39 FrontBoardServices 0x000000010a8f4498 __FBSSERIALQUEUE_IS_CALLING_OUT_TO_A_BLOCK + 24
40 FrontBoardServices 0x000000010a8f414e-[FBSSerialQueue _performNext] + 464
41 FrontBoardServices 0x000000010a8f46bd-[FBSSerialQueue _performNextFromRunLoopSource] + 45
42 CoreFoundation 0x000000010899f101 CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION + 17
43 CoreFoundation 0x0000000108a3ef71 __CFRunLoopDoSource0 + 81
44 CoreFoundation 0x0000000108983a19 __CFRunLoopDoSources0 + 185
45 코어 파운데이션 0x0000000108982fff __CFRunLoopRun + 1279
46 CoreFoundation 0x0000000108982889 CFRunLoopRunSpecific + 409
47 GraphicsServices 0x000000010b1889c6 GSEventRunModal + 62
48 UIKit 0x00000001055a55d6 UIApplicationMain + 159
49 Jobr 0x00000001043ee5e7 메인 + 55
50 libdyld.dylib0x0000000109b9ad81 시작 + 1
51 화 0x0000000000000001 0x0 + 1
)
libc ++ abi.dylib : NSException 유형의 포착되지 않은 예외로 종료
(lldb)