How to position UITableViewCell at bottom of screen?

Question

There are one to three UITableViewCells in a UITableViewView. Is there a way to always position the cell(s) at the bottom of screen after rel

Answer 1

The best way of doing this I found is to observe the content size of the tableview and adjust the inset if necessary. For example:

static char kvoTableContentSizeContext = 0;

- (void) viewWillAppear:(BOOL)animated
{
    [_tableView addObserver:self forKeyPath:@"contentSize" options:0 context:&kvoTableContentSizeContext];
}

- (void) viewWillDisappear:(BOOL)animated
{
    [_tableView removeObserver:self forKeyPath:@"contentSize"];
}

- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context
{
    if (context == &kvoTableContentSizeContext) {

        CGFloat contentHeight = _tableView.contentSize.height;
        CGFloat tableHeight = _tableView.frame.size.height;

        if (contentHeight < tableHeight) {

            UIEdgeInsets insets = _tableView.contentInset;

            insets.top = tableHeight - contentHeight;
            _tableView.contentInset = insets;

        } else {
            _tableView.contentInset = UIEdgeInsetsZero;
        }

    } else {
        [super observeValueForKeyPath:keyPath ofObject:object change:change context:context];
    }
}