Various effect of interpolator in Android Animation

In the previouse exercises of Animation, we implement animations XML with android:interpolator="@android:anim/linear_interpolator". In this exercise, we try difference effect of various effect of android:interpolator; accelerate_decelerate_interpolator, accelerate_interpolator, anticipate_overshoot_interpolator, anticipate_interpolator, bounce_interpolator, cycle_interpolator, decelerate_interpolator, linear_interpolator and overshoot_interpolator.



Create following XML files under /res/anim/ folder.
accelerate_decelerate.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
    android:interpolator="@android:anim/accelerate_decelerate_interpolator">
    <translate
        android:fromYDelta="-100%p"
        android:toYDelta="0"
        android:duration="2000"/>
</set>

accelerate.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
    android:interpolator="@android:anim/accelerate_interpolator">
    <translate
        android:fromYDelta="-100%p"
        android:toYDelta="0"
        android:duration="2000"/>
</set>

anticipate_overshoot.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
    android:interpolator="@android:anim/anticipate_overshoot_interpolator">
    <translate
        android:fromYDelta="-80%p"
        android:toYDelta="0"
        android:duration="2000"/>
</set>

anticipate.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
    android:interpolator="@android:anim/anticipate_interpolator">
    <translate
        android:fromYDelta="-80%p"
        android:toYDelta="0"
        android:duration="2000"/>
</set>

bounce.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
    android:interpolator="@android:anim/bounce_interpolator">
    <translate
        android:fromYDelta="-100%p"
        android:toYDelta="0"
        android:duration="2000"/>
</set>

cycle.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
    android:interpolator="@android:anim/cycle_interpolator">
    <translate
        android:fromYDelta="-50%p"
        android:toYDelta="0"
        android:duration="2000"/>
</set>

decelerate.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
    android:interpolator="@android:anim/decelerate_interpolator">
    <translate
        android:fromYDelta="-100%p"
        android:toYDelta="0"
        android:duration="2000"/>
</set>

linear.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
    android:interpolator="@android:anim/linear_interpolator">
    <translate
        android:fromYDelta="-100%p"
        android:toYDelta="0"
        android:duration="2000"/>
</set>

overshoot.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
    android:interpolator="@android:anim/overshoot_interpolator">
    <translate
        android:fromYDelta="-80%p"
        android:toYDelta="0"
        android:duration="2000"/>
</set>

Modify main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <TextView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="@string/hello" />
    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:orientation="horizontal">
        <LinearLayout
         android:layout_width="wrap_content"
         android:layout_height="fill_parent"
         android:orientation="vertical"
         android:gravity="bottom"
         android:layout_margin="30dp">
         <ImageView
             android:id="@+id/image"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_gravity="center"
             android:src="@drawable/ic_launcher"/>
        </LinearLayout>
     <LinearLayout
         android:layout_width="fill_parent"
         android:layout_height="fill_parent"
         android:orientation="vertical">
         <Button
             android:id="@+id/acceleratedecelerate"
             android:layout_width="fill_parent"
             android:layout_height="wrap_content"
             android:text="Accelerate_Decelerate"/>
         <Button
             android:id="@+id/accelerate"
             android:layout_width="fill_parent"
             android:layout_height="wrap_content"
             android:text="Accelerate"/>
         <Button
             android:id="@+id/anticipate"
             android:layout_width="fill_parent"
             android:layout_height="wrap_content"
             android:text="Anticipate"/>
         <Button
             android:id="@+id/anticipateovershoot"
             android:layout_width="fill_parent"
             android:layout_height="wrap_content"
             android:text="Anticipate_Overshoot"/>
         <Button
             android:id="@+id/bounce"
             android:layout_width="fill_parent"
             android:layout_height="wrap_content"
             android:text="Bounce"/>
         <Button
             android:id="@+id/cycle"
             android:layout_width="fill_parent"
             android:layout_height="wrap_content"
             android:text="Cycle"/>
         <Button
             android:id="@+id/decelerate"
             android:layout_width="fill_parent"
             android:layout_height="wrap_content"
             android:text="Decelerate"/>
         <Button
             android:id="@+id/linear"
             android:layout_width="fill_parent"
             android:layout_height="wrap_content"
             android:text="Linear"/>
         <Button
             android:id="@+id/overshoot"
             android:layout_width="fill_parent"
             android:layout_height="wrap_content"
             android:text="Overshoot"/>
         
        </LinearLayout>
    </LinearLayout>
</LinearLayout>

Main Activity:

package com.exercise.AndroidAnimInterpolator;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.widget.Button;
import android.widget.ImageView;

public class AndroidAnimInterpolatorActivity extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        final Animation animAccelerateDecelerate = AnimationUtils.loadAnimation(this, R.anim.accelerate_decelerate);
        final Animation animAccelerate = AnimationUtils.loadAnimation(this, R.anim.accelerate);
        final Animation animAnticipate = AnimationUtils.loadAnimation(this, R.anim.anticipate);
        final Animation animAnticipateOvershoot = AnimationUtils.loadAnimation(this, R.anim.anticipate_overshoot);
        final Animation animBounce = AnimationUtils.loadAnimation(this, R.anim.bounce);
        final Animation animCycle = AnimationUtils.loadAnimation(this, R.anim.cycle);
        final Animation animDecelerate = AnimationUtils.loadAnimation(this, R.anim.decelerate);
        final Animation animLinear = AnimationUtils.loadAnimation(this, R.anim.linear);
        final Animation animOvershoot = AnimationUtils.loadAnimation(this, R.anim.overshoot);
        
        final ImageView image = (ImageView)findViewById(R.id.image);
        Button btnAccelerateDecelerate = (Button)findViewById(R.id.acceleratedecelerate);
        Button btnAccelerate = (Button)findViewById(R.id.accelerate);
        Button btnAnticipate = (Button)findViewById(R.id.anticipate);
        Button btnAnticipateOvershoot = (Button)findViewById(R.id.anticipateovershoot);
        Button btnBounce = (Button)findViewById(R.id.bounce);
        Button btnCycle = (Button)findViewById(R.id.cycle);
        Button btnDecelerate = (Button)findViewById(R.id.decelerate);
        Button btnLinear = (Button)findViewById(R.id.linear);
        Button btnOvershoot = (Button)findViewById(R.id.overshoot);

        btnAccelerateDecelerate.setOnClickListener(new Button.OnClickListener(){

   @Override
   public void onClick(View arg0) {
    image.startAnimation(animAccelerateDecelerate);
    
   }});
        
        btnAccelerate.setOnClickListener(new Button.OnClickListener(){

   @Override
   public void onClick(View arg0) {
    image.startAnimation(animAccelerate);
    
   }});
        
        btnAnticipate.setOnClickListener(new Button.OnClickListener(){

   @Override
   public void onClick(View arg0) {
    image.startAnimation(animAnticipate);
    
   }});
        
        btnAnticipateOvershoot.setOnClickListener(new Button.OnClickListener(){

   @Override
   public void onClick(View arg0) {
    image.startAnimation(animAnticipateOvershoot);
    
   }});
        
        btnBounce.setOnClickListener(new Button.OnClickListener(){

   @Override
   public void onClick(View arg0) {
    image.startAnimation(animBounce);
    
   }});
        
        btnCycle.setOnClickListener(new Button.OnClickListener(){

   @Override
   public void onClick(View arg0) {
    image.startAnimation(animCycle);
    
   }});
        
        btnDecelerate.setOnClickListener(new Button.OnClickListener(){

   @Override
   public void onClick(View arg0) {
    image.startAnimation(animDecelerate);
    
   }});
        
        btnLinear.setOnClickListener(new Button.OnClickListener(){

   @Override
   public void onClick(View arg0) {
    image.startAnimation(animLinear);
    
   }});
        
        btnOvershoot.setOnClickListener(new Button.OnClickListener(){

   @Override
   public void onClick(View arg0) {
    image.startAnimation(animOvershoot);
    
   }});
        
    }
}

Download the files.