Let’s say I have a vertical linearLayout with :
[v1]
[v2]
By default v1 has visibily = GONE. I would like to show v1 with an expand animation and push down v2 at the same time.
I tried something like this:
Animation a = new Animation()
{
int initialHeight;
@Override
protected void applyTransformation(float interpolatedTime, Transformation t) {
final int newHeight = (int)(initialHeight * interpolatedTime);
v.getLayoutParams().height = newHeight;
v.requestLayout();
}
@Override
public void initialize(int width, int height, int parentWidth, int parentHeight) {
super.initialize(width, height, parentWidth, parentHeight);
initialHeight = height;
}
@Override
public boolean willChangeBounds() {
return true;
}
};
But with this solution, I have a blink when the animation starts. I think it’s caused by v1 displaying full size before the animation is applied.
With javascript, this is one line of jQuery! Any simple way to do this with android?