Bugs with iOS5 scrolling

[toddparker]

We still have soem issues to iron out on the new iOS5 scrolling:

All pages - scroll to the bottom and release. Page will scroll itself and clip off the bottom 50px or so.
http://filamentgroup.com/examples/ios5/docs/toolbars/index.html

Fixed toolbars - pull down so URL bar appears, tap to hide, tap again to show and footer will be positioned wrong. Pushed up the height of the URL bar.
http://filamentgroup.com/examples/ios5/docs/toolbars/bars-fullscreen.html

Custom select menu won't open when clicked. Native menus ok.
http://filamentgroup.com/examples/ios5/docs/forms/selects/index.html

Headers disappear randomly. Open a dialog here and header will be gone.
http://filamentgroup.com/examples/ios5/docs/pages/page-transitions.html

[toddparker]

Copying these over from #2510 by thomson02 to keep all these in one ticket:

I have found that when using a fixed positioned header with a listView (with roughly 50 items), scrolling becomes extremely slow. When i scroll down the list the list items take some time to render. On closer inspection it seems as though the list items will only render when the scroll bar stops moving (i.e. when you quickly flick down the list). This is not the case when fixed positioning is disabled.

I have also noticed that when moving between pages with fixed positioned headers strange things can happen to the positions of other elements on the page. For example:

• The widths of pages can change (on pagebeforeshow i have had to set the width of the content div to 100%).
• The positioning of the search box in a list view is incorrect.