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POGrouped UITableView Footer Sometimes Hidden On Quick Scroll
 

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    <p>OK, this one is a puzzler. There is <a href="https://stackoverflow.com/questions/1116121/weird-uitableview-behavior-after-scrolling-and-inserting-new-row">one similar post</a> but it's not similar enough to count, so I'm posting this one. :)</p> <p>I've got a grouped <strong>UITableView</strong> with a header and footer. The footer includes two <strong>UIButton</strong> views, side-by-side. Nothing major.</p> <p>Now … there is a toggle button in a <strong>UIToolbar</strong> at the bottom for more/less info in this table view. So I build my index paths to delete/insert with fade row animation, all the usual ingredients, sandwiched between <code>beginUpdates</code> and <code>endUpdates</code> calls on the <strong>UITableView</strong> … and this works fine! In also happens that my footer can sometimes be pushed off past the bottom of the display.</p> <p>Here's where it gets weird. If I drag my finger up the display, scrolling the view upward, I should see that footer eventually, right?</p> <p>Well … most of the time I do. BUT, if I flick my finger up, for a faster scroll, the footer is <em>missing</em>. Even if you try to tap in that area - no response.</p> <p>However, if I scroll back down again, just to hide that footer (or rather hide the area where the footer would normally be), and then scroll back up, it's there once again!</p> <p>This only happens when <em>inserting</em> rows. If I delete rows, the footer stays put … unless of course it was already hidden and I didn't perform the aforementioned incantation to get it back. <code>:)</code></p> <p>I am trying to trace through this, but to no avail. I suppose tracing through scroll operations is a bit of a crazy proposition! Perhaps some creative logging … suggestions, anyone? Or is this a known issue in 3.1 where row insert/deletes are concerned? (I don't recall seeing it until 3.1.)</p>
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