NSInternalInconsistencyException'，原因:“试图将第0行插入第0节，但更新后第0节只有0行"

问题描述

我正在使用UITableViewController并在更新tableView时遇到此错误.下面是我的代码:

I am using UITableViewController and getting this error while updating tableView. Below is my code:

发生点击事件时会发生这种情况:

This occurs when i do a click event:

[timeZoneNames insertObject:@"HELLO" atIndex:0];
[self.tableView beginUpdates];
NSArray *insertIndexPaths = [NSArray arrayWithObject:[NSIndexPath indexPathForRow:0 inSection:0]];
[self.tableView insertRowsAtIndexPaths:insertIndexPaths withRowAnimation:UITableViewRowAnimationTop];
[self.tableView endUpdates];

我尝试查找Apple文档，但没有帮助.

I tried looking for apple documentation but that didnt helped.

谢谢，阿比

推荐答案

我之前曾遇到过此问题.这意味着调用-insertRowsAtIndexPaths:withRowAnimation:时-tableView:numberOfRowsInSection:返回0.在调用-insertRowsAtIndexPaths:withRowAnimation:之前，您需要插入模型中(请参阅: -beginUpdates )

I've ran into this problem before. It means that when -insertRowsAtIndexPaths:withRowAnimation: was called -tableView:numberOfRowsInSection: returned 0. You need to insert into the model before you call -insertRowsAtIndexPaths:withRowAnimation: (see: -beginUpdates)

更新

我想知道-tableView:numberOfRowsInSection:的返回值是多少?另外，如果只有一个更新，则不需要-beginUpdates/-endUpdates.

I wonder what the return value of -tableView:numberOfRowsInSection: is? Also, you don't need -beginUpdates/-endUpdates if you only have one update.

[timeZoneNames insertObject:@"HELLO" atIndex:0];
// Let's see what the tableView claims is the the number of rows.
NSLog(@"numberOfRowsInSection: %d", [self tableView:self.tableView numberOfRowsInSection:0]);
NSArray *insertIndexPaths = [NSArray arrayWithObject:[NSIndexPath indexPathForRow:0 inSection:0]];
[self.tableView insertRowsAtIndexPaths:insertIndexPaths withRowAnimation:UITableViewRowAnimationTop];

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