Saturday, January 23, 2010

[android-developers] Slide-up/down animation clipping my background

I am trying to create a view slide-up / slide downeffect, where a menu
slides up from the bottom of the screen, and pushes the existing views
upwards... basically the same thing that the soft keyboard does.

Using a basic TranslateAnimation tween animation, on the menu and root
layout, I am able to get the desired effect. The catch, however, is
that when my root layout slides up, the background image (ImageView)
gets cropped / clipped, and the subsequent slide-down will have an
empty / black area corresponding to whatever area was pushed off the
screen.

How do I prevent my background from getting clipped?

Heres the basic block of code.....

TranslateAnimation slide = new TranslateAnimation(0, 0, 0,
menu.getHeight());
slide.setDuration(300);
slide.setFillAfter(true);

menu.startAnimation(slide);
root.startAnimation(slide);

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