我有一個tabbar和幾個視圖,其中一個tableview連接到核心數據。現在我已經在另一個項目中創建了一個tableview,並且我想將它合併到我的第一個項目中。這對我來說並不陌生,以前我曾在另一個項目中完成過,在這個項目中,我有三個帶有不同核心數據表的桌面視圖,所有工作都很好。所以我認爲這將是在公園散步。將兩個tableviews與核心數據合併到一個tabbar的問題
在我的AppDelage.m和.h中,我添加並複製了managedObjectContext的所有代碼到managedObjectContext2。並製作了一個新的導航控制器「navigationController2」。
ProtokollList *protokollList = (ProtokollList *)[navigationController2 topViewController];
// Set its managedObjectContext property to the managed object context
protokollList.managedObjectContext2 = self.managedObjectContext2;
// Get the root view controller; it's in the topViewController property of the navigation controller
KortKategori *kortKategori = (KortKategori *)[navigationController topViewController];
// Set its managedObjectContext property to the managed object context
kortKategori.managedObjectContext = self.managedObjectContext;
然後在我的ProtokollList.m中,我將managedObjectContext更改爲managedObjectContext2。並在MainWindow.nib中建立了必要的連接。
但是當我嘗試運行項目,我收到此錯誤信息:
2011-07-24 18:22:58.188 Kortspel[1346:207] Unknown class ProtokollList in Interface Builder file.
2011-07-24 18:22:58.198 Kortspel[1346:207] -[UIViewController setManagedObjectContext2:]: unrecognized selector sent to instance 0x4d13c40
2011-07-24 18:22:58.199 Kortspel[1346:207] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[UIViewController setManagedObjectContext2:]: unrecognized selector sent to instance 0x4d13c40'
*** Call stack at first throw:
(
0 CoreFoundation 0x00fab5a9 __exceptionPreprocess + 185
1 libobjc.A.dylib 0x010ff313 objc_exception_throw + 44
2 CoreFoundation 0x00fad0bb -[NSObject(NSObject) doesNotRecognizeSelector:] + 187
3 CoreFoundation 0x00f1c966 ___forwarding___ + 966
4 CoreFoundation 0x00f1c522 _CF_forwarding_prep_0 + 50
5 Kortspel 0x00001f28 -[KortAppDelegate applicationDidFinishLaunching:] + 709
6 UIKit 0x002c4ce2 -[UIApplication _callInitializationDelegatesForURL:payload:suspended:] + 1252
7 UIKit 0x002c6d88 -[UIApplication _runWithURL:payload:launchOrientation:statusBarStyle:statusBarHidden:] + 439
8 UIKit 0x002d1617 -[UIApplication handleEvent:withNewEvent:] + 1533
9 UIKit 0x002c9abf -[UIApplication sendEvent:] + 71
10 UIKit 0x002cef2e _UIApplicationHandleEvent + 7576
11 GraphicsServices 0x01903992 PurpleEventCallback + 1550
12 CoreFoundation 0x00f8c944 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 52
13 CoreFoundation 0x00eeccf7 __CFRunLoopDoSource1 + 215
14 CoreFoundation 0x00ee9f83 __CFRunLoopRun + 979
15 CoreFoundation 0x00ee9840 CFRunLoopRunSpecific + 208
16 CoreFoundation 0x00ee9761 CFRunLoopRunInMode + 97
17 UIKit 0x002c67d2 -[UIApplication _run] + 623
18 UIKit 0x002d2c93 UIApplicationMain + 1160
19 Kortspel 0x00001c40 main + 102
20 Kortspel 0x00001bd1 start + 53
)
terminate called after throwing an instance of 'NSException'
我不知道它說,它不承認「ProtokollList」類,因爲它在ProtokollList.h定義。
有沒有人有任何想法?這是發射前的最後一步!
編輯: 如果我嘗試空出:
/*
ProtokollList *protokollList = (ProtokollList *)[navigationController2 topViewController];
// Set its managedObjectContext property to the managed object context
protokollList.managedObjectContext2 = self.managedObjectContext2;
*/
我可以打開這個項目,但是當我點擊ProtokollList-的tableview我得到這個新的錯誤消息:
2011-07-25 20:06:56.588 Kortspel[3205:207] Unknown class ProtokollList in Interface Builder file.
2011-07-25 20:07:01.585 Kortspel[3205:207] -[UIViewController tableView:numberOfRowsInSection:]: unrecognized selector sent to instance 0x590f3f0
2011-07-25 20:07:01.587 Kortspel[3205:207] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[UIViewController tableView:numberOfRowsInSection:]: unrecognized selector sent to instance 0x590f3f0'
*** Call stack at first throw:
(
0 CoreFoundation 0x00fb25a9 __exceptionPreprocess + 185
1 libobjc.A.dylib 0x01106313 objc_exception_throw + 44
2 CoreFoundation 0x00fb40bb -[NSObject(NSObject) doesNotRecognizeSelector:] + 187
3 CoreFoundation 0x00f23966 ___forwarding___ + 966
4 CoreFoundation 0x00f23522 _CF_forwarding_prep_0 + 50
5 UIKit 0x004882b7 -[UISectionRowData refreshWithSection:tableView:tableViewRowData:] + 1834
6 UIKit 0x00485d88 -[UITableViewRowData numberOfRows] + 108
7 UIKit 0x00339677 -[UITableView noteNumberOfRowsChanged] + 132
8 UIKit 0x00346708 -[UITableView reloadData] + 773
9 UIKit 0x00343844 -[UITableView layoutSubviews] + 42
10 QuartzCore 0x01f52a5a -[CALayer layoutSublayers] + 181
11 QuartzCore 0x01f54ddc CALayerLayoutIfNeeded + 220
12 QuartzCore 0x01efa0b4 _ZN2CA7Context18commit_transactionEPNS_11TransactionE + 310
13 QuartzCore 0x01efb294 _ZN2CA11Transaction6commitEv + 292
14 QuartzCore 0x01efb46d _ZN2CA11Transaction17observer_callbackEP19__CFRunLoopObservermPv + 99
15 CoreFoundation 0x00f9389b __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 27
16 CoreFoundation 0x00f286e7 __CFRunLoopDoObservers + 295
17 CoreFoundation 0x00ef11d7 __CFRunLoopRun + 1575
18 CoreFoundation 0x00ef0840 CFRunLoopRunSpecific + 208
19 CoreFoundation 0x00ef0761 CFRunLoopRunInMode + 97
20 GraphicsServices 0x019091c4 GSEventRunModal + 217
21 GraphicsServices 0x01909289 GSEventRun + 115
22 UIKit 0x002d9c93 UIApplicationMain + 1160
23 Kortspel 0x00002524 main + 102
24 Kortspel 0x000024b5 start + 53
)
terminate called after throwing an instance of 'NSException'
最佳問候, xqtr
嗨@sergio,謝謝你的回覆! 在ProtokollList.h我已經定義managedObjectContext2: @接口ProtokollList:的UITableViewController { \t NSFetchedResultsController * fetchedResultsController2; \t NSManagedObjectContext * managedObjectContext2; } @ end 還是我做錯了什麼? –
xqtr
你應該丟失的屬性定義,看到我的編輯,不要忘了在'.m'文件中的'@ synthesize' ... – sergio
不行,我得屬性定義爲好,這樣可以不它。 @ property(nonatomic,retain)NSFetchedResultsController * fetchedResultsController2; @ property(nonatomic,retain)NSManagedObjectContext * managedObjectContext2; and @ synthesize fetchedResultsController2,managedObjectContext2; – xqtr