[android-developers] Re: Help with animation

Thanks, Doug. I am basically trying to achieve the same effect
that happens when you tap the More button on the new Market app when
you want to see more of an apmp's description. Everything below the
description slides down smoothly revealing the full text.

On Dec 25, 11:52 am, Doug <beafd...@gmail.com> wrote:
> I think View1 is always going to have an intrinsic height of its
> measured height for the layout.  That is to say, an animation isn't
> going to change a view's measured height over time, it will just
> change the way it appears on screen over the duration of the
> animation.  The mere presence of View1 in your layout will cause the
> layout to set aside its measured dimensions.
>
> I could be wrong, but I don't think an animation with a layout like
> this is going to achieve the effect you're looking for.  You may have
> to do something where you change the measured height of the view over
> time and invalidate the view/layout at every tick to get it to re-
> render everything.
>
> Doug
>
> On Dec 24, 6:18 pm, Zsolt Vasvari <zvasv...@gmail.com> wrote:
>
>
>
> > I have a LinearLayout with 2 vertical components:
>
> > View1
> > View2
>
> > I would like to smoothly animate-in View1.
>
> > I am using the following animation:
>
> > <scale android:fromXScale="1.0" android:toXScale="1.0"
> > android:fromYScale="0.0" android:toYScale="1.0"
> >            android:pivotX="0" android:pivotY="0"
> > android:duration="@android:integer/config_longAnimTime"/>
>
> > I am doing a:
>
> > view1.startAnimation(animation);
> > view1.setVisibility(View.VISIBLE);
>
> > It works, but the problem is that View2 snaps down and View1 fills the
> > gap.   How do I make it so View2 slide down smoothly?  I've tried
> > postponing the setVisibilty() call to after the animation had
> > finished, but then View1 slides down over View2 which looks even
> > worse.
>
> > Thanks.

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