Create fade Animation - Android Animation

Android examples for Animation:Fade Animation

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Description

Create fade Animation

Demo Code


//package com.java2s;

import android.view.View;

import android.view.animation.AlphaAnimation;
import android.view.animation.Animation;

public class Main {
    public static void fadeAnimation(final View view,
            final float fromAlpha, final float toAlpha, long duration,
            final Runnable callback) {
        Animation anim = new AlphaAnimation(fromAlpha, toAlpha);
        anim.setDuration(duration);//w w  w  .j  a v  a  2 s .c o  m
        anim.setAnimationListener(new Animation.AnimationListener() {
            @Override
            public void onAnimationStart(Animation animation) {
            }

            @Override
            public void onAnimationEnd(Animation animation) {
                view.setAlpha(toAlpha);
                if (toAlpha > 0)
                    view.setVisibility(View.VISIBLE);
                else
                    view.setVisibility(View.GONE);

                if (callback != null)
                    callback.run();
            }

            @Override
            public void onAnimationRepeat(Animation animation) {
            }
        });

        view.setVisibility(View.VISIBLE);
        view.startAnimation(anim);
    }
}

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