如果用户触摸UITableView,只需更新TableView以获取以下代码
[self.myTableView beginUpdates];
[myTableView endUpdates];
然后它会产生以下崩溃报告.
2013-12-17 17:27:33.446 planobot[12300:a0b] *** Assertion failure in -[UITableView _endCellAnimationsWithContext:], /SourceCache/UIKit_Sim/UIKit-2903.23/UITableView.m:1330
2013-12-17 17:27:33.469 planobot[12300:a0b] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Invalid update: invalid number of rows in section 0. The number of rows contained in an existing section after the update (1) must be equal to the number of rows contained in that section before the update (7), plus or minus the number of rows inserted or deleted from that section (0 inserted, 0 deleted) and plus or minus the number of rows moved into or out of that section (0 moved in, 0 moved out).'
*** First throw call stack:
(
0 CoreFoundation 0x0210e5e4 __exceptionPreprocess + 180
1 libobjc.A.dylib 0x01e918b6 objc_exception_throw + 44
2 CoreFoundation 0x0210e448 +[NSException raise:format:arguments:] + 136
3 Foundation 0x00fe5fee -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 116
4 UIKit 0x0024485d -[UITableView _endCellAnimationsWithContext:] + 13402
5 UIKit 0x00253caa -[UITableView endUpdatesWithContext:] + 51
6 UIKit 0x00253cd8 -[UITableView endUpdates] + 41
7 planobot 0x0004f34a -[DailyReportViewController tableView:didSelectRowAtIndexPath:] + 1658
8 UIKit 0x002557b1 -[UITableView _selectRowAtIndexPath:animated:scrollPosition:notifyDelegate:] + 1513
9 UIKit 0x00255924 -[UITableView _userSelectRowAtPendingSelectionIndexPath:] + 279
10 UIKit 0x00259908 __38-[UITableView touchesEnded:withEvent:]_block_invoke + 43
11 UIKit 0x00190183 ___afterCACommitHandler_block_invoke + 15
12 UIKit 0x0019012e _applyBlockToCFArrayCopiedToStack + 403
13 UIKit 0x0018ff5a _afterCACommitHandler + 532
14 CoreFoundation 0x020d64ce __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 30
15 CoreFoundation 0x020d641f __CFRunLoopDoObservers + 399
16 CoreFoundation 0x020b4344 __CFRunLoopRun + 1076
17 CoreFoundation 0x020b3ac3 CFRunLoopRunSpecific + 467
18 CoreFoundation 0x020b38db CFRunLoopRunInMode + 123
19 GraphicsServices 0x02fec9e2 GSEventRunModal + 192
20 GraphicsServices 0x02fec809 GSEventRun + 104
21 UIKit 0x00173d3b UIApplicationMain + 1225
22 planobot 0x000a6a4d main + 141
23 planobot 0x000022b5 start + 53
)
libc++abi.dylib: terminating with uncaught exception of type NSException
为什么应用程序抛出NSInternalInconsistencyException?
最佳答案 当我的计数不正确时,我经常会看到这个.基于此:
reason: 'Invalid update: invalid number of rows in section 0. The number of rows contained in an existing section after the update (1) must be equal to the number of rows contained in that section before the update (7), plus or minus the number of rows inserted or deleted from that section (0 inserted, 0 deleted) and plus or minus the number of rows moved into or out of that section (0 moved in, 0 moved out).'
我猜你的表中有7个元素(由tableView报告:numberOfRowsInSection :)返回7并且现在返回1.这导致我相信你认为调用
[self.myTableView beginUpdates];
[myTableView endUpdates];
删除行时就足够了.
但是你需要告诉你UITableView首先删除(或添加)了哪些行.
这将取决于您的确切情况,但如果您想删除第0部分的前七行,它将看起来像这样.
NSMutableArray *indexes = [[NSMutableArray alloc] init];
for (int i = 0; i <= 6; i++)
{
[indexes addObject:[NSIndexPath indexPathForItem:i inSection:0]];
}
[myTable beginUpdates];
[myTable deleteRowsAtIndexPaths:indexes withRowAnimation:NO];
[myTable endUpdates];
同样正如@Marco所说,只需使用相同的指针指向你的表,否则它有点令人困惑,我在我的例子中做了.
或者如果你只是想告诉你要完全重载的表,你可以调用reloadData instaed.
[myTable reloadData];
我认为这比手动指定添加或删除哪些行的其他方式效率低,但在7表中我认为它会没问题.