Question

I have a Tab Bar Controller with UITableView inside. When an item is selected from the table, it pushes another View with a UITableView. What I want to achieve is when the second View has 0 rows (all rows deleted) to simulate the backBarButton behavior – to go to the previous view (the one with the Tab Bar Controller).

Answer 1

In -viewDidAppear:

if ([yourContentArray count] == 0) {    // Or other way to check if there are 0 rows
    [self.navigationController popViewControllerAnimated:YES];
}

If you want to go back once several rows have been deleted, you could put it into the Delegate, too:

- (void)tableView:(UITableView *)tableView 
commitEditingStyle:(UITableViewCellEditingStyle)editingStyle 
forRowAtIndexPath:(NSIndexPath *)indexPath 
{    
    if (editingStyle == UITableViewCellEditingStyleDelete) {
        if ([yourContentArray count] == 0) {
            [self.navigationController popViewControllerAnimated:YES];
        }
        // ...
    }
}