I really did not find a ready-to-use solution, but I can recommend either using sencha or jquery mobile and checking out existing applications!
jQuery mobile example
and here are the apps for connecting sencha
These two structures require a completely different level of experience, and it will take some time to take the sencha approach (easier if you are familiar with ExtJS), but it provides a really solid platform that also provides a compiler tool to prepare for the market app for ios and android
also, if all you really need is just this toolbar, just think if it’s easy to do, just check how the built-in toolbar is implemented in any of these two frameworks, as this is a bit of a headache on the iphone.
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