Example of Reveal animations on Android 5.0

package com.example.androidrevealeffect;

import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.ViewAnimationUtils;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.ToggleButton;

public class MainActivity extends Activity {

 TextView title;
 ImageView image;
 ToggleButton btnHideShow;

 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);
  title = (TextView)findViewById(R.id.title);
  image = (ImageView) findViewById(R.id.image);
  btnHideShow = (ToggleButton) findViewById(R.id.hideshow);

  btnHideShow.setOnCheckedChangeListener(new OnCheckedChangeListener() {

   @Override
   public void onCheckedChanged(CompoundButton buttonView,
     boolean isChecked) {
    if(isChecked){
     hide(title);
     hide(image);
    }else{
     show(title);
     show(image);
    }

   }
  });
 }

 // To reveal a previously invisible view using this effect:
 private void show(final View view) {
  // get the center for the clipping circle
  int cx = (view.getLeft() + view.getRight()) / 2;
  int cy = (view.getTop() + view.getBottom()) / 2;

  // get the final radius for the clipping circle
  int finalRadius = Math.max(view.getWidth(), view.getHeight());

  // create the animator for this view (the start radius is zero)
  Animator anim = ViewAnimationUtils.createCircularReveal(view, cx, cy,
    0, finalRadius);
  anim.setDuration(1000);

  // make the view visible and start the animation
  view.setVisibility(View.VISIBLE);
  anim.start();
 }

 // To hide a previously visible view using this effect:
 private void hide(final View view) {

  // get the center for the clipping circle
  int cx = (view.getLeft() + view.getRight()) / 2;
  int cy = (view.getTop() + view.getBottom()) / 2;

  // get the initial radius for the clipping circle
  int initialRadius = view.getWidth();

  // create the animation (the final radius is zero)
  Animator anim = ViewAnimationUtils.createCircularReveal(view, cx, cy,
    initialRadius, 0);
  anim.setDuration(1000);

  // make the view invisible when the animation is done
  anim.addListener(new AnimatorListenerAdapter() {
   @Override
   public void onAnimationEnd(Animator animation) {
    super.onAnimationEnd(animation);
    view.setVisibility(View.INVISIBLE);
   }
  });

  // start the animation
  anim.start();
 }

}

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:orientation="vertical"
    tools:context="com.example.androidrevealeffect.MainActivity" >

    <TextView
        android:id="@+id/title"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="android-coding.blogspot.com"
        android:textSize="28dp"
        android:textStyle="bold" />

    <ToggleButton
        android:id="@+id/hideshow"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:textOn="Show"
        android:textOff="Hide" />
    
    <ImageView
        android:id="@+id/image"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:src="@drawable/ic_launcher"
        android:background="@android:color/darker_gray" />

</LinearLayout>