One more thing I want to add. The reason that I don't want my view got unloaded/destroyed is that when the views were unloaded/destroyed, those views are unusable (they don't work as expected). Will the KONtx framework automatically reload my views or I have to do it manually?
Some guidelines are much appreciated!

Tinh

The unused/idle views will get unloaded automatically as part of garbage collection. You don't need to actually worry about this typically since normally the views which get destroyed are the ones which the user was not using currently and if you go back to the same view again, it will be reloaded again.

Thanks,
Vivek

Hi Vivek,

I'm sorry for not being clear in my initial question, the reason I asked because it caused me problem! :). After my fullscreen view got unloaded, I can barely do anything with the widget, I've got a black screen and the widget does not response to any key press (I have color key handlers setup in the my fullscreen view), the color key handlers were not called at all. At that time, I have to press the Home button (from the Simulator) to return to the widget docks, re-select my widget and return to my fullscreen view. Now the color key handler get called, but all the GUI element does not work.
I develop a simple application to demonstrate that behavior. You can download it here. http://dl.dropbox.com/u/1059802/tv.rallypoint.samsung.widget.zip
Note: on the simulator, my fullscreen view got unloaded after about 10-15 minutes, but on the Vizio TV, it took about about 2 hours (idle time) to get unloaded.

If you need more information, I will provide as much as I can.

Many thanks,
Tinh