这是我加载单元格的方式：
zimmerCell = (ZimmerCell*)[tableView dequeueReusableCellWithIdentifier:@"ZimmerCell"];
if (zimmerCell == nil) {
ZimmerCell* loadedCell;
loadedCell = [[[NSBundle mainBundle] loadNibNamed:@"ZimmerCell" owner:self options:nil] objectAtIndex:0];
zimmerCell = [loadedCell retain];
[zimmerCell prepare];
}
return zimmerCell;
我第一次打开桌子时工作。 当我退出视图控制器并再次输入时，它会崩溃并显示以下内容：
*由于未捕获的异常'CALayerInvalidGeometry'而终止应用，原因：'CALayer bounds包含NaN：[0 0; nan 7.27683e-38]' * 首次调用堆栈：（0 CoreFoundation 0x01a44be9 exceptionPreprocess + 185 1 libobjc.A.dylib
0x01b995c2 objc_exception_throw + 47 2 CoreFoundation
0x019fd628 + [NSException raise：format：arguments：] + 136 3
CoreFoundation 0x019fd59a + [NSException raise：格式：] + 58 4 QuartzCore
0x008b63ee _ZL16CALayerSetBoundsP7CALayerRKN2CA4RectEb + 227 5
QuartzCore 0x008b62b6 - [CALayer setBounds：] + 122 6 UIKit 0x0121eac0 - [UIView _createLayerWithFrame：] + 401 7 UIKit 0x0121a13b UIViewCommonInitWithFrame + 421 8 UIKit
0x0121b063 - [UIView initWithFrame：] + 113 9 UIKit
0x013ae909 - [UITableViewCell initWithCoder：] + 1218 10 PrivatQuadrat 0x00021e87 - [ZimmerCell initWithCoder：] + 62 11 UIKit
0x013e0265 - [UIClassSwapper initWithCoder：] + 237 12 UIKit
0x014c69e4 UINibDecoderDecodeObjectForValue + 2592 13 UIKit
0x014c7693 - [UINibDecoder decodeObjectForKey：] + 398 14 UIKit
0x013dff43 - [UIRuntimeConnection initWithCoder：] + 212 15 UIKit
0x014c69e4 UINibDecoderDecodeObjectForValue + 2592 16 UIKit
0x014c62dc UINibDecoderDecodeObjectForValue + 792 17 UIKit
0x014c7693 - [UINibDecoder decodeObjectForKey：] + 398 18 UIKit
0x013df200 - [UINib instantiateWithOwner：options：] + 804 19 UIKit
0x013e1081 - [NSBundle（UINSBundleAdditions） loadNibNamed：owner：options：] + 168 20 PrivatQuadrat
0x00021401 - [ErweitertViewController tableView：cellForRowAtIndexPath：] + 202 21 UIKit 0x0125d7fa - [UITableView（UITableViewInternal）_createPreparedCellForGlobalRow：withIndexPath：] + 634 22 UIKit 0x0125377f - [UITableView（UITableViewInternal） _createPreparedCellForGlobalRow：] + 75 23 UIKit 0x01268450 - [UITableView（_UITableViewPrivate）_updateVisibleCellsNow：] + 1561 24 UIKit 0x01260538 - [UITableView layoutSubviews] + 242 25 QuartzCore 0x008bc451 - [CALayer layoutSublayers] + 181 26 QuartzCore
0x008bc17c CALayerLayoutIfNeeded + 220 27 QuartzCore
0x008b537c _ZN2CA7Context18commit_transactionEPNS_11TransactionE + 310 28 QuartzCore 0x008b50d0 _ZN2CA11Transaction6commitEv + 292 29 QuartzCore 0x008e57d5 _ZN2CA11Transaction17observer_callbackEP19__CFRunLoopObservermPv + 99 30 CoreFoundation 0x01a25fbb __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION + 27 31 CoreFoundation 0x019bb0e7 __CFRunLoopDoObservers + 295 32 CoreFoundation 0x01983bd7 __CFRunLoopRun + 1575 33 CoreFoundation 0x01983240 CFRunLoopRunSpecific + 208 34 CoreFoundation
0x01983161 CFRunLoopRunInMode + 97 35图形服务
0x02487268 GSEventRunModal + 217 36图形服务
0x0248732d GSEventRun + 115 37 UIKit
0x011f842e UIApplicationMain + 1160 38 PrivatQuadrat
0x00002184 main + 102 39 PrivatQuadrat
0x00002115开始+ 53
有什么想法吗？