我创建了一个带有自定义单元格的表视图。我将该表视图放在viewController上，并且每当需要时我都会呈现viewController。它在iOS6，iOS7中运行良好。来到iOS8它正在崩溃并显示错误消息，并且在某些时候它正在崩溃而没有显示任何错误消息只显示EXC_BADACCESS：
-[DropDownViewTableViewCell tableView:heightForHeaderInSection:]: unrecognized selector sent to instance
以下是整个控制台错误消息。
2014-11-10 11:09:41.067 BML[1029:26620] -[DropDownViewTableViewCell tableView:heightForHeaderInSection:]: unrecognized selector sent to instance 0x7ccb05e0
2014-11-10 11:09:41.075 BML[1029:26620] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[DropDownViewTableViewCell tableView:heightForHeaderInSection:]: unrecognized selector sent to instance 0x7ccb05e0'
*** First throw call stack:
(
0 CoreFoundation 0x0431c946 __exceptionPreprocess + 182
1 libobjc.A.dylib 0x03fa1a97 objc_exception_throw + 44
2 CoreFoundation 0x043245c5 -[NSObject(NSObject) doesNotRecognizeSelector:] + 277
3 CoreFoundation 0x0426d3e7 ___forwarding___ + 1047
4 CoreFoundation 0x0426cfae _CF_forwarding_prep_0 + 14
5 UIKit 0x02a95449 -[UITableView _delegateWantsHeaderForSection:] + 370
6 UIKit 0x02c54935 -[UISectionRowData refreshWithSection:tableView:tableViewRowData:] + 169
7 UIKit 0x02c5b59c -[UITableViewRowData rectForFooterInSection:heightCanBeGuessed:] + 302
8 UIKit 0x02c5b6c5 -[UITableViewRowData heightForTable] + 68
9 UIKit 0x02a6c98c -[UITableView _updateContentSize] + 395
10 UIKit 0x02a8f4a7 -[UITableView didMoveToWindow] + 76
11 UIKit 0x029fe5b9 -[UIView(Internal) _didMoveFromWindow:toWindow:] + 1703
12 UIKit 0x02a113e1 -[UIScrollView _didMoveFromWindow:toWindow:] + 65
13 UIKit 0x029fe23f -[UIView(Internal) _didMoveFromWindow:toWindow:] + 813
14 UIKit 0x029fe23f -[UIView(Internal) _didMoveFromWindow:toWindow:] + 813
15 UIKit 0x029fe23f -[UIView(Internal) _didMoveFromWindow:toWindow:] + 813
16 UIKit 0x029fe23f -[UIView(Internal) _didMoveFromWindow:toWindow:] + 813
17 UIKit 0x029fe23f -[UIView(Internal) _didMoveFromWindow:toWindow:] + 813
18 UIKit 0x029fe23f -[UIView(Internal) _didMoveFromWindow:toWindow:] + 813
19 UIKit 0x029f5517 __45-[UIView(Hierarchy) _postMovedFromSuperview:]_block_invoke + 154
20 UIKit 0x029f5475 -[UIView(Hierarchy) _postMovedFromSuperview:] + 458
21 UIKit 0x02a00f0d -[UIView(Internal) _addSubview:positioned:relativeTo:] + 2018
22 UIKit 0x029f386e -[UIView(Hierarchy) addSubview:] + 56
23 UIKit 0x02aa3b58 -[UITransitionView transition:fromView:toView:removeFromView:] + 1576
24 UIKit 0x0320826d -[UIViewControllerBuiltinTransitionViewAnimator animateTransition:] + 3551
25 UIKit 0x02aa91ad __56-[UIPresentationController runTransitionForCurrentState]_block_invoke + 2343
26 UIKit 0x02adc7ab __40+[UIViewController _scheduleTransition:]_block_invoke + 18
27 UIKit 0x029a20ce ___afterCACommitHandler_block_invoke + 15
28 UIKit 0x029a2079 _applyBlockToCFArrayCopiedToStack + 415
29 UIKit 0x029a1e8e _afterCACommitHandler + 545
30 CoreFoundation 0x0423f9de __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 30
31 CoreFoundation 0x0423f920 __CFRunLoopDoObservers + 400
32 CoreFoundation 0x0423535a __CFRunLoopRun + 1226
33 CoreFoundation 0x04234bcb CFRunLoopRunSpecific + 443
34 CoreFoundation 0x042349fb CFRunLoopRunInMode + 123
35 GraphicsServices 0x0684724f GSEventRunModal + 192
36 GraphicsServices 0x0684708c GSEventRun + 104
37 UIKit 0x029788b6 UIApplicationMain + 1526
38 BML 0x0014bc2d main + 141
39 libdyld.dylib 0x048b4ac9 start + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException
DropDownViewTableViewCell.h
#import <UIKit/UIKit.h>
@interface DropDownViewTableViewCell : UITableViewCell
@property (nonatomic, retain) IBOutlet UILabel *label;
@property (nonatomic, retain) IBOutlet UIImageView *imageVie;
@end
DropDownViewTableViewCell.m
#import "DropDownViewTableViewCell.h"
@implementation DropDownViewTableViewCell
- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier
{
self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
if (self) {
// Initialization code
}
return self;
}
- (void)awakeFromNib
{
// Initialization code
}
- (void)setSelected:(BOOL)selected animated:(BOOL)animated
{
[super setSelected:selected animated:animated];
// Configure the view for the selected state
}
@end
TableViewImplementation
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
return 35;
}
- (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section
{
return 1;
}
- (CGFloat)tableView:(UITableView *)tableView heightForFooterInSection:(NSInteger)section
{
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
// Return the number of rows in the section.
return [self.poiDataArray count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
DropDownViewTableViewCell * cell = [tableView dequeueReusableCellWithIdentifier:@"myCell"];
if (!cell)
{
if([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone)
{
[tableView registerNib:[UINib nibWithNibName:@"DropDownView_iPhone" bundle:nil] forCellReuseIdentifier:@"myCell"];
cell = [tableView dequeueReusableCellWithIdentifier:@"myCell"];
}
else
{
[tableView registerNib:[UINib nibWithNibName:@"DropDownView_iPad" bundle:nil] forCellReuseIdentifier:@"myCell"];
cell = [tableView dequeueReusableCellWithIdentifier:@"myCell"];
CGRect frame;
frame =cell.label.frame;
frame.size.width +=50;
cell.label.frame=frame;
}
}
return cell;
}