deleteRowsAtIndexPaths- 破坏应用程序
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
if (editingStyle == UITableViewCellEditingStyleDelete)
{
NSLog(@"delet it");
// Delete the row from the data source.
[tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:YES];
}
else if (editingStyle == UITableViewCellEditingStyleInsert)
{
// Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view.
}
}
为什么这会使我的应用程序崩溃？
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
if (editingStyle == UITableViewCellEditingStyleDelete)
{
NSLog(@"delet it");
// Delete the row from the data source.
[tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:YES];
}
else if (editingStyle == UITableViewCellEditingStyleInsert)
{
// Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view.
}
}
Why is this crashing my application?
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您需要在调用
deleteRowsAtIndexPaths:withRowAnimation:之前删除单元格行的数据。UITableView 将检查您的数据源对象中的行数。如果您的新返回行数不等于旧行数减一，您就会遇到麻烦。
You need to delete your cell row's data before you call
deleteRowsAtIndexPaths:withRowAnimation:.UITableView will check your data source object for number of row in section. If your new returned value of number of rows does not equal to old number of rows minus one, you'll be in trouble.