Animation动画

Animation:  1，AlphaAnimation, 透明度动画，

2， RotateAnimation, 旋转动画，

3，ScaleAnimation, 缩放动画

4，TranslateAnimation 位移动画

通过setDuration（）设置动画时长，setAnimation（）将想要的动画添加到你所想要的图片ImageView上。

note：如果想让一张图片具有多个动画的话，使用AnimationSet动画集合类，用addAnimation()添加想要的动画。

简单的Animation demo截图：

以下是XML布局和Java代码：

 <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="com.example.android_animation.MainActivity" >

     <ImageView
         android:id="@+id/imageView1"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_alignParentTop="true"
         android:layout_centerHorizontal="true"
         android:layout_marginTop="28dp"
         android:src="@drawable/heihei" />

     <Button
         android:id="@+id/button1"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_alignLeft="@+id/button2"
         android:layout_below="@+id/imageView1"
         android:layout_marginTop="36dp"
         android:text="透明度动画" />

     <Button
         android:id="@+id/button2"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_alignLeft="@+id/button3"
         android:layout_below="@+id/button1"
         android:layout_marginTop="14dp"
         android:text="旋转动画" />

     <Button
         android:id="@+id/button3"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_alignLeft="@+id/button4"
         android:layout_below="@+id/button2"
         android:text="位移动画" />

     <Button
         android:id="@+id/button4"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_alignLeft="@+id/button5"
         android:layout_below="@+id/button3"
         android:text="缩放动画" />

     <Button
         android:id="@+id/button5"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_below="@+id/button4"
         android:layout_centerHorizontal="true"
         android:text="多种动画" />

 </RelativeLayout>

Animation XML布局

 package com.example.android_animation;

 import android.app.Activity;
 import android.os.Bundle;
 import android.view.View;
 import android.view.View.OnClickListener;
 import android.view.animation.AlphaAnimation;
 import android.view.animation.Animation;
 import android.view.animation.AnimationSet;
 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 MainActivity extends Activity implements OnClickListener {
     private ImageView imageview;
     private Button button1;
     private Button button2;
     private Button button3;
     private Button button4;
     private Button button5;
     private Animation animation;
     private Animation alphaanimation;
     private Animation translateanimation;

     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
         imageview = (ImageView) findViewById(R.id.imageView1);
         // imageview.setImageResource(R.drawable.mao);
         button1 = (Button) findViewById(R.id.button1);
         button2 = (Button) findViewById(R.id.button2);
         button3 = (Button) findViewById(R.id.button3);
         button4 = (Button) findViewById(R.id.button4);
         button5 = (Button) findViewById(R.id.button5);
         button1.setOnClickListener(this);
         button2.setOnClickListener(this);
         button3.setOnClickListener(this);
         button4.setOnClickListener(this);
         button5.setOnClickListener(this);
     }

     @Override
     public void onClick(View v) {
         // TODO Auto-generated method stub
         switch (v.getId()) {
         case R.id.button1:
             // 透明度动画动画
             animation = new AlphaAnimation(0.1f, 1.0f);
             animation.setDuration(3000);
             imageview.setAnimation(animation);
             break;
         case R.id.button2:
             // 旋转动画
             animation = new RotateAnimation(0, 360);
             animation.setDuration(3000);
             imageview.setAnimation(animation);
             break;
         case R.id.button3:
             // 位移动画
             animation = new TranslateAnimation(0.1f, 1.0f, 1.0f, 100f);
             animation.setDuration(3000);
             imageview.setAnimation(animation);
             break;
         case R.id.button4:
             // 缩放动画
             animation = new ScaleAnimation(0.1f, 1.0f, 0.1f, 1.0f);
             animation.setDuration(3000);
             imageview.setAnimation(animation);
             break;
         case R.id.button5:
             // 多种动画
             alphaanimation = new AlphaAnimation(0.1f, 1.0f);
             translateanimation = new TranslateAnimation(0.1f, 1.0f, 1.0f, 100f);
             animation = new ScaleAnimation(0.1f, 1.0f, 0.1f, 1.0f);
             // 定义一个动画集合
             AnimationSet set = new AnimationSet(true);
             set.addAnimation(alphaanimation);
             set.addAnimation(animation);
             set.addAnimation(translateanimation);
             break;
         default:
             break;
         }
     }
 }

Animation Java代码