<RelativeLayout 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"tools:context=".AnimationActivity" ><ImageViewandroid:id="@+id/animation_img"android:layout_width="150dp"android:layout_height="150dp"android:layout_centerInParent="true"android:src="@drawable/icon_follower" /><LinearLayoutandroid:id="@+id/action_items"android:layout_width="match_parent"android:layout_height="wrap_content"android:layout_alignParentBottom="true"android:orientation="horizontal" ><Buttonandroid:id="@+id/btn_alphaanimation"android:layout_width="wrap_content"android:layout_height="wrap_content"android:singleLine="true"android:text="@string/alpha_animation" /><Buttonandroid:id="@+id/btn_rotateanimation"android:layout_width="wrap_content"android:layout_height="wrap_content"android:singleLine="true"android:text="@string/rotate_animation" /><Buttonandroid:id="@+id/btn_scaleanimation"android:layout_width="wrap_content"android:layout_height="wrap_content"android:singleLine="true"android:text="@string/scale_animation" /><Buttonandroid:id="@+id/btn_translationanimation"android:layout_width="wrap_content"android:layout_height="wrap_content"android:singleLine="true"android:text="@string/scale_animation" /></LinearLayout></RelativeLayout>

package com.joyfulmath.animatatorsamples;import android.os.Bundle;
import android.app.Activity;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.animation.AccelerateDecelerateInterpolator;
import android.view.animation.AlphaAnimation;
import android.view.animation.Animation;
import android.view.animation.Animation.AnimationListener;
import android.view.animation.BounceInterpolator;
import android.view.animation.LinearInterpolator;
import android.view.animation.OvershootInterpolator;
import android.view.animation.RotateAnimation;
import android.view.animation.ScaleAnimation;
import android.view.animation.TranslateAnimation;
import android.widget.Button;
import android.widget.ImageView;public class AnimationActivity extends Activity implements OnClickListener{private static final String TAG = "animatatorsamples";Button mAlphaAnimation = null;Button mRotateAnimation = null;Button mScaleAnimation = null;Button mTranslationAnimation = null;ImageView mImage = null;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_animation_main);mAlphaAnimation = (Button) this.findViewById(R.id.btn_alphaanimation);mAlphaAnimation.setOnClickListener(this);mRotateAnimation = (Button) this.findViewById(R.id.btn_rotateanimation);mRotateAnimation.setOnClickListener(this);mScaleAnimation = (Button) this.findViewById(R.id.btn_scaleanimation);mScaleAnimation.setOnClickListener(this);mTranslationAnimation = (Button) this.findViewById(R.id.btn_translationanimation);mTranslationAnimation.setOnClickListener(this);mImage = (ImageView) this.findViewById(R.id.animation_img);}@Overridepublic boolean onCreateOptionsMenu(Menu menu) {// Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.animation, menu);return true;}@Overridepublic void onClick(View v) {// TODO Auto-generated method stubswitch(v.getId()){case R.id.btn_alphaanimation:startAlphaAnimation();break;case R.id.btn_rotateanimation:startRotateAnimation();break;case R.id.btn_scaleanimation:startScaleAnimation();break;case R.id.btn_translationanimation:startThanslationAnimation();    break;}}private void startRotateAnimation() {Log.i(TAG, "[startRotateAnimation]");//Animation.RELATIVE_TO_SELF the center of rotateAnimation rotateaAni = new RotateAnimation(0f, 360f,Animation.RELATIVE_TO_SELF,0.5f,Animation.RELATIVE_TO_SELF,0.5f);rotateaAni.setDuration(3000);rotateaAni.setFillAfter(true);rotateaAni.setInterpolator(new LinearInterpolator());        mImage.startAnimation(rotateaAni);}private void startAlphaAnimation() {Log.i(TAG, "[startAlphaAnimation]");AlphaAnimation alphaAni = new AlphaAnimation(1.0f, 0.5f);alphaAni.setDuration(3000);alphaAni.setFillAfter(true);alphaAni.setInterpolator(new OvershootInterpolator());alphaAni.setAnimationListener(new AnimationListener() {@Overridepublic void onAnimationStart(Animation arg0) {// TODO Auto-generated method stubLog.i(TAG, "[onAnimationStart]");}@Overridepublic void onAnimationRepeat(Animation arg0) {// TODO Auto-generated method stubLog.i(TAG, "[onAnimationRepeat]");}@Overridepublic void onAnimationEnd(Animation arg0) {// TODO Auto-generated method stubLog.i(TAG, "[onAnimationEnd]");}});mImage.startAnimation(alphaAni);}private void startScaleAnimation(){float fromX; //1.0f to 0.0ffloat toX; float fromY; float toY;int pivotXType; //where is the last place after scalefloat pivotXValue;int pivotYType; float pivotYValue;    //Animation.ABSOLUTE,         //the last place with X ordinate with absolute diff 20f//Animation.RELATIVE_TO_SELF,   //specified dimension to self//Animation.RELATIVE_TO_PARENT.    //specified dimension to parent move 100%=1f with diff (%parent diff)ScaleAnimation scaleAnim = new ScaleAnimation(1.0f, 0.5f, 1.0f, 0.5f
//                ,Animation.ABSOLUTE, 20f, Animation.RELATIVE_TO_PARENT,
//                2f
                );//ScaleAnimation(float fromX, float toX, float fromY, float toY) 绫讳技Animation.ABSOLUTE,涓攛,y =0;scaleAnim.setDuration(3000);scaleAnim.setFillAfter(true);scaleAnim.setInterpolator(new OvershootInterpolator());mImage.startAnimation(scaleAnim);}private void startThanslationAnimation(){Log.i(TAG, "[startThanslationAnimation]");//Animation.ABSOLUTE where is the last point show place//the start x,y ordinate is the current place with translation TranslateAnimation anmit= new TranslateAnimation(Animation.RELATIVE_TO_PARENT,0.1f,Animation.RELATIVE_TO_PARENT,0.5f,Animation.RELATIVE_TO_PARENT,0.2f,Animation.RELATIVE_TO_PARENT, 0.6f);anmit.setDuration(3000);anmit.setFillAfter(true);anmit.setInterpolator(new BounceInterpolator());mImage.startAnimation(anmit);    }}

    /*** Constructor to use when building an AnimationSet from code* * @param shareInterpolator Pass true if all of the animations in this set*        should use the interpolator associated with this AnimationSet.*        Pass false if each animation should use its own interpolator.*/public AnimationSet(boolean shareInterpolator) {setFlag(PROPERTY_SHARE_INTERPOLATOR_MASK, shareInterpolator);init();}