Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Open Source License 

import android.animation.ValueAnimator;

import android.view.View;
import android.view.ViewGroup;

public class Main {
    public static void animateHeight(final View view, int from, int to, int duration) {
        boolean expanding = to > from;

        ValueAnimator anim = ValueAnimator.ofInt(from, to);
        anim.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
            @Override
            public void onAnimationUpdate(ValueAnimator valueAnimator) {
                int val = (Integer) valueAnimator.getAnimatedValue();
                ViewGroup.LayoutParams layoutParams = view.getLayoutParams();
                layoutParams.height = val;
                view.setLayoutParams(layoutParams);
            }
        });
        anim.setDuration(duration);
        anim.start();

        view.animate().alpha(expanding ? 1 : 0).setDuration(duration / 2).start();
    }
}