StackOverflow2013

Note that there are some explanatory texts on larger screens.

plurals

POWhat is the right place to add a subview dependent on scrollView.contentSize?
text
Body
copied!<p>I'm using <a href="http://www.cocoanetics.com/2009/12/how-to-make-a-pull-to-reload-tableview-just-like-tweetie-2/" rel="nofollow">Cocoanetic's pull-to-reload</a> but with a twist: I would like the UITableView to be able to pull up, as it were, to load more data.</p> <p>I customized the classes and have managed to adjust all functionality to support this. What got me stumped, basically, is where in my code to create and add the extra view.</p> <p>I first tried to add it in viewDidLoad of Cocoanetic's class (a <code>UITableViewController</code>):</p> <pre><code>- (void)viewDidLoad { [super viewDidLoad]; refreshHeaderView = [[EGORefreshTableHeaderView alloc] initWithFrame:CGRectMake(0.0f, 0.0f - self.view.bounds.size.height, 320.0f, self.view.bounds.size.height)]; refreshFooterView = [[EGORefreshTableFooterView alloc] initWithFrame:CGRectMake(0.0f, 0.0f + self.tableView.contentSize.height, 320.0f, 20.0f)]; [self.tableView addSubview:refreshHeaderView]; [self.tableView addSubview:refreshFooterView]; self.tableView.showsVerticalScrollIndicator = YES; } </code></pre> <p>This does not work, as <code>self.tableView.contentSize.height</code> is zero at this point, because the table hasn't loaded it's data yet.</p> <p>Not to worry, I thought, and tried to add it in the viewDidLoad of the UITableViewController subclass I made:</p> <pre><code>- (void)viewDidLoad { [super viewDidLoad]; // stuff self.model = [ListingModel listingModelWithURL:@"avalidurl" delegate:self]; refreshFooterView = [[EGORefreshTableFooterView alloc] initWithFrame:CGRectMake(0.0f, 0.0f + self.tableView.contentSize.height, 320.0f, 20.0f)]; [self.tableView addSubview:refreshFooterView]; } </code></pre> <p>Note I set the model first, but that also didn't work, for the same reason. I assume the table hasn't been layed-out yet. In frustration I gave my class a <code>BOOL</code> property and an <code>addFooter</code> method (the <code>BOOL</code> to make sure it's only called once) called from <code>tableView:cellForRowAtIndexPath:</code> which obviously is a far cry from The Right Way™</p> <p>So what would, given this scenario, be The Right Way™?</p>

Querying!

Guidance

An individual column

Larger individual text columns get their own page to allow for proper reading.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload