ANDROID_MARS学习笔记_S02_008_ANIMATION第二种使用方式：xml

一、简介

　　

二、代码
1.res\anim下的xml
(1)alpha.xml.xml

 <?xml version="1.0" encoding="utf-8"?>
 <set xmlns:android="http://schemas.android.com/apk/res/android"
     android:interpolator="@android:anim/accelerate_interpolator">
     <alpha
         android:fromAlpha="1.0"
         android:toAlpha="0.0"
         android:startOffset="500"
         android:duration="1000"/>
 </set>

(2)rotate.xml

 <?xml version="1.0" encoding="utf-8"?>
 <set xmlns:android="http://schemas.android.com/apk/res/android"
     android:interpolator="@android:anim/accelerate_interpolator">
     <rotate
         android:fromDegrees="0"
         android:toDegrees="720"
         android:pivotX="50%"
         android:pivotY="100%"
         android:duration="3000"/>
 </set>

(3)scale.xml

 <?xml version="1.0" encoding="utf-8"?>
 <set xmlns:android="http://schemas.android.com/apk/res/android"
     android:interpolator="@android:anim/accelerate_interpolator">
     <scale
         android:fromXScale="1.0"
         android:toXScale="0.0"
         android:fromYScale="1.0"
         android:toYScale="0.0"
         android:pivotX="50%"
         android:pivotY="50%"
         android:duration="2000"/>
 
 </set>

(4)tranlate.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:fromXDelta="50%"
         android:toXDelta="100%"
         android:fromYDelta="0%"
         android:toYDelta="100%"
         android:duration="2000"/>
 </set>

2.java
(1)MainActivity.java

 package com.animation2;
 
 import android.app.Activity;
 import android.os.Bundle;
 import android.view.View;
 import android.view.View.OnClickListener;
 import android.view.animation.Animation;
 import android.view.animation.AnimationUtils;
 import android.widget.Button;
 import android.widget.ImageView;
 
 public class MainActivity extends Activity {
 
     private ImageView imageView = null;
     private Button rotateButton = null;
     private Button scaleButton = null;
     private Button alphaButton = null;
     private Button translateButton = null;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
 
         imageView = (ImageView) findViewById(R.id.imageViewId);
 
         rotateButton = (Button) findViewById(R.id.rotateButtonId);
         rotateButton.setOnClickListener(new RotateButtonListener());
 
         scaleButton = (Button) findViewById(R.id.scaleButtonId);
         scaleButton.setOnClickListener(new ScaleButtonListener());
 
         alphaButton = (Button) findViewById(R.id.alphaButtonId);
         alphaButton.setOnClickListener(new AlphaButtonListener());
 
         translateButton = (Button) findViewById(R.id.translateButtonId);
         translateButton.setOnClickListener(new TranslateButtonListener());
     }
 
     class TranslateButtonListener implements OnClickListener {
         @Override
         public void onClick(View v) {
             Animation animation = AnimationUtils.loadAnimation(MainActivity.this, R.anim.tranlate);
             imageView.startAnimation(animation);
         }
     }
 
     class AlphaButtonListener implements OnClickListener {
         @Override
         public void onClick(View v) {
             Animation animation = AnimationUtils.loadAnimation(MainActivity.this, R.anim.alpha);
             imageView.startAnimation(animation);
         }
     }
 
     class ScaleButtonListener implements OnClickListener {
         @Override
         public void onClick(View v) {
             Animation animation = AnimationUtils.loadAnimation(MainActivity.this, R.anim.scale);
             imageView.startAnimation(animation);
         }
     }
 
     class RotateButtonListener implements OnClickListener {
         @Override
         public void onClick(View v) {
             Animation animation = AnimationUtils.loadAnimation(MainActivity.this, R.anim.rotate);
             imageView.startAnimation(animation);
         }
     }
 }