Crash when using iOS Accessibility with UITableView sections and it would crash after several [tableview reloadData]

Question

将iOS Accessibility与UITableView部分一起使用时出现崩溃，该部分是可访问性元素，并且在多次[tableview reloadData]之后会崩溃。

Answer 1

It turns out that the [tableView reloadData] was being called from within a block - in other words being called from another thread.

The simple solution was the following:

- (void)blockTest
{
    [self displayData:YES animated:YES onCompletion:^(void) {
    [self performSelectorOnMainThread:@selector(updateTableData) withObject:nil waitUntilDone:YES];
    }];
}


- (void)updateTableData
{
    [self.tableView reloadData];
}

After that no more crashes.