A solution that works both on Android mobile application using Adobe Flex and desktop application using Adobe AIR is preferred. I guess this should be a basic feature, without extended support from third party library. But don't have a clue after searching on Internet.
The Kap Lab components (found on Adobe's Flex / Extend : Related products page) seem not working on Android mobile device. This is the error message I received when running it on Android mobile device:
1046 : Type was not found or was not a compile-time constant: [mx.controls.treeClasses]::ITreeDataDescriptor.
My desktop development environment is:
(1) Adobe Flash Builder 4.7
(2) Adobe Flex SDK 4.6
(3) ActionScript 3.0
Any hint is appreciated :D