Android grow LinearLayout using animation

Question

I am trying to use animation to make a layout appear on screen. The idea is that layout will start with height of 0 and grow to 100%.

I have real troubles with this and

Answer 1

Ok, I figured it out.

Animation XML layout

Layout XML file

and my Activity class

public class MyActivity extends Activity{

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
 }

public void animate(View view){
    LinearLayout dialog   = (LinearLayout)findViewById(R.id.dialog);
    dialog.setVisibility(LinearLayout.VISIBLE);
    Animation animation   =    AnimationUtils.loadAnimation(this, R.anim.anim);
    animation.setDuration(500);
    dialog.setAnimation(animation);
    dialog.animate();
    animation.start();
 }

}