iphone – 崩溃[[NSBundle mainBundle] loadNibnamed：owner：options：]

概述参见英文答案 > What does this mean? “’NSUnknownKeyException’, reason: … this class is not key value coding-compliant for the key X”                                    61 我不能想出这一个.我在IB中创建了一个定制的UITableViewCel 参见英文答案 > What does this mean? “’NSUnknownKeyException’,reason: … this class is not key value coding-compliant for the key X”                                    61
我不能想出这一个.我在IB中创建了一个定制的UItableVIEwCell.据我所知,我将所有的UILabels的所有对象正确连接在一起,并且所有的对象都建立在没有任何错误的情况下.当我尝试使用自定义单元格时,当我尝试加载NIB时,该应用停止.我列出了我在下面的地方.

任何帮助或提示或在哪里寻找这一个,将不胜感激.

谢谢,

约翰

这是我的UItableVIEwCell接口和实现方法.我不知道我真的需要分配init标签.我试过两种方式…

//  ArrivalTimesCell.h#import <UIKit/UIKit.h>@interface ArrivalTimesCell : UItableVIEwCell {    IBOutlet UILabel *cityArrivalTimeLabel;    IBOutlet UILabel *optimumArrivalTimeLabel;    IBOutlet UILabel *arrivalAvoIDTimesLabel;    IBOutlet UILabel *arrivalTimeNotSetLabel;}@property (nonatomic,retain)IBOutlet UILabel *cityArrivalTimeLabel;@property (nonatomic,retain)IBOutlet UILabel *optimumArrivalTimeLabel;@property (nonatomic,retain)IBOutlet UILabel *arrivalAvoIDTimesLabel;@property (nonatomic,retain)IBOutlet UILabel *arrivalTimeNotSetLabel;@end//  ArrivalTimesCell.m#import "ArrivalTimesCell.h"@implementation ArrivalTimesCell@synthesize arrivalTimeNotSetLabel,arrivalAvoIDTimesLabel,optimumArrivalTimeLabel,cityArrivalTimeLabel;- (ID)initWithStyle:(UItableVIEwCellStyle)style reuseIDentifIEr:(Nsstring *)reuseIDentifIEr{    self = [super initWithStyle:style reuseIDentifIEr:reuseIDentifIEr];    if (self) {        arrivalTimeNotSetLabel = [[UILabel alloc] init];        arrivalAvoIDTimesLabel = [[UILabel alloc] init];        optimumArrivalTimeLabel = [[UILabel alloc] init];        cityArrivalTimeLabel = [[UILabel alloc] init];    }    return self;}- (voID)setSelected:(BOol)selected animated:(BOol)animated{    [super setSelected:selected animated:animated];}- (voID)dealloc{    [super dealloc];    [arrivalTimeNotSetLabel release];    arrivalTimeNotSetLabel = nil;    [arrivalAvoIDTimesLabel release];    arrivalAvoIDTimesLabel = nil;    [optimumArrivalTimeLabel release];    optimumArrivalTimeLabel = nil;    [cityArrivalTimeLabel release];    cityArrivalTimeLabel = nil;}@end

这是UItableVIEw的cellForRowAtIndexPath的一部分

//  TripEditVIEwController.m#import "ArrivalTimesCell.h"@implementation TripEditVIEwController- (UItableVIEwCell *)tableVIEw:(UItableVIEw *)tableVIEw cellForRowAtIndexPath:(NSIndexPath *)indexPath {    CellIDentifIEr = @"ArrivalTimesCell";    ArrivalTimesCell *cell = (ArrivalTimesCell *)[tableVIEw dequeueReusableCellWithIDentifIEr:CellIDentifIEr];    if(cell == nil){        NSArray *topLevelObjects = [[NSBundle mainBundle] loadNibnamed:@"ArrivalTimesCell" owner:nil options:nil];        for (ID currentObject in topLevelObjects) {            if ([currentObject isKindOfClass:[UItableVIEwCell class]]) {                cell = (ArrivalTimesCell *) currentObject;                break;             }         }          }    cell.cityArrivalTimeLabel.text = @"Whatever"    cell.arrivalAvoIDTimesLabel.text = @"Whatever";    cell.optimumArrivalTimeLabel.text = @"Whatever";    cell.arrivalTimeNotSetLabel.text = @"Whatever";    return cell;  }

程序执行停止在loadNibnamed行上,而控制台中没有任何注释.如果我“进入”我得到以下,我不知道与我的崩溃的原因有关,而是由于nib的加载不正确的结果…

2011-03-29 12:18:14.137 JetLogger[4565:207] * Terminating app due to uncaught exception ‘NSUnkNownKeyException’,reason: ‘[ setValue:forUndefinedKey:]: this class is not key value Coding-compliant for the key cityArrivalTimeLabel.’
* Call stack at first throw:
(
0 CoreFoundation 0x0111a5a9 exceptionPreprocess + 185
1 libobjc.A.dylib 0x0126e313 objc_exception_throw + 44
2 CoreFoundation 0x0111a4e1 -[NSException raise] + 17
3 Foundation 0x000ca677 _NSSetUsingkeyvalueSetter + 135
4 Foundation 0x000ca5e5 -[NSObject(NSkeyvalueCoding) setValue:forKey:] + 285
5 UIKit 0x0054e30c -[UIRuntimeOutletConnection connect] + 112
6 CoreFoundation 0x010908cf -[NSArray makeObjectsPerformSelector:] + 239
7 UIKit 0x0054cd23 -[UINib instantiateWithOwner:options:] + 1041
8 UIKit 0x0054eab7 -[NSBundle(UINSBundleAdditions) loadNibnamed:owner:options:] + 168
9 JetLogger 0x0004bf18 -[TripEditVIEwController tableVIEw:cellForRowAtIndexPath:] + 699
10 UIKit 0x003c7b98 -[UItableVIEw(UItableVIEwInternal) _createPreparedCellForGlobalRow:withIndexPath:] + 634
11 UIKit 0x003bd4cc -[UItableVIEw(UItableVIEwInternal) _createPreparedCellForGlobalRow:] + 75
12 UIKit 0x003d28cc -[UItableVIEw(_UItableVIEwPrivate) _updateVisibleCellsNow:] + 1561
13 UIKit 0x003ca90c -[UItableVIEw layoutSubvIEws] + 242
14 QuartzCore 0x02051a5a -[CALayer layoutSublayers] + 181
15 QuartzCore 0x02053ddc CALayerLayoutIfNeeded + 220
16 QuartzCore 0x01ff90b4 _ZN2CA7Context18commit_transactionEPNS_11TransactionE + 310
17 QuartzCore 0x01ffa294 _ZN2CA11Transaction6commitEv + 292
18 QuartzCore 0x01ffa46d _ZN2CA11Transaction17observer_callbackEP19__CFRunLoopObservermPv + 99
19 CoreFoundation 0x010fb89b __CFRUNLOOP_IS_CALliNG_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION + 27
20 CoreFoundation 0x010906e7 __CFRunLoopDoObservers + 295
21 CoreFoundation 0x010591d7 __CFRunLoopRun + 1575
22 CoreFoundation 0x01058840 CFRunLoopRunspecific + 208
23 CoreFoundation 0x01058761 CFRunLoopRunInMode + 97
24 GraphiCSServices 0x01a081c4 GSEventRunModal + 217
25 GraphiCSServices 0x01a08289 GSEventRun + 115
26 UIKit 0x00360c93 UIApplicationMain + 1160
27 JetLogger 0x00001ba8 main + 102
28 JetLogger 0x00001b39 start + 53
)
terminate called after throwing an instance of ‘NSException’

解决方法 在你的笔尖的某处,你可以在没有该属性的对象上连接到cityArrivalTimeLabel属性.确保您将单元格的类更改为ArrivalTimesCell,并将该标签连接到正确的对象.

您不需要在init方法中分配/初始化标签.它们只是在笔尖加载时才被替换,所以直到那时才会浪费RAM.

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