> if I want to take a window (with a dialog in it) and do some
> transformations on it (which will have to be done in s/w since android
> doesnt yet support h/w accleleration of its 2D animations)  how do I
> do that?

Window animations can be fully hardware accelerated.  And as Romain
says, after M5 there are also APIs to use hardware acceleration for
rendering inside of a window.

> lets say I want to rotate the window and scale it.. maybe throw some
> transparency effect in there.  you know, like with a compositing
> window manager, how do I do it?  even slwoly in s/w, can I do it?

Just like with views, you can apply animations to windows, which can
apply both alpha and 2d transformations to the window surface.  This
is how the window animations you currently see are implemented: they
are just animation resources describing how to slide and fade (as in
menus) or other 2d transformations such as the zoom when opening an
activity window.

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