className – set this property equal to an arbitrary string to optimize rendering performance. On both iOS and Android, setting this property enables the operating system to reuse table rows that are scrolled out of view to speed up the rendering of newly-visible rows. On iOS, the string you supply is used to specify the reuse-identifier string (setdequeueReusableCellWithIdentifier); on Android, it is used within a custom object reuse method within Titanium.