I'm trying to create a vertical toggle switch control for the iPhone (along the lines of UISwitch but vertical sliding).

I was wondering whether an existing control already existed or if there are any good tutorials that explain the basics of creating custom controls for the iPhone.

Currently I've tried using affine transforms to create the vertical switch from a basic UIswitch, and it works except that the slider is too small compared to the slider track, thus I'm looking for information on writing custom controls.

Any direction is much appreciated.