tweenanim动画

1、视图

 <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:orientation="vertical"

     tools:context=".MainActivity" >

     <LinearLayout

         android:layout_width="match_parent"

         android:layout_height="wrap_content"

         android:orientation="horizontal"

         >

         <Button

             android:layout_width="wrap_content"

             android:layout_height="wrap_content"

             android:onClick="click1"

             android:text="透明"

             />

          <Button

             android:layout_width="wrap_content"

             android:layout_height="wrap_content"

             android:onClick="click2"

             android:text="缩放"

             />

          <Button

             android:layout_width="wrap_content"

             android:layout_height="wrap_content"

             android:onClick="click3"

             android:text="旋转"

             />

          <Button

             android:layout_width="wrap_content"

             android:layout_height="wrap_content"

             android:onClick="click4"

             android:text="平移"

             />

           <Button

             android:layout_width="wrap_content"

             android:layout_height="wrap_content"

             android:onClick="click5"

             android:text="组合"

             />

     </LinearLayout>

     <LinearLayout

         android:layout_width="match_parent"

         android:layout_height="match_parent"

         android:gravity="center"

         >

         <ImageView

             android:id="@+id/iv"

             android:layout_width="wrap_content"

             android:layout_height="wrap_content"

             android:src="@drawable/ic_launcher"

             />

     </LinearLayout>

 </LinearLayout>

2、android代码

 package com.example.tweenanim;

 import android.os.Bundle;

 import android.app.Activity;

 import android.view.Menu;

 import android.view.View;

 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.ImageView;

 public class MainActivity extends Activity {

     private ImageView iv;

     @Override

     protected void onCreate(Bundle savedInstanceState) {

         super.onCreate(savedInstanceState);

         setContentView(R.layout.activity_main);

         iv = (ImageView) findViewById(R.id.iv);

     }

     //透明度

     public void click1(View view){

         //第一个参数表示开始透明度;0表示完全透明

         //第二个参数表示结束透明度;1表示完全不透明

         AlphaAnimation animation = new AlphaAnimation(0.0f, 1.0f);

         animation.setDuration(2000);//设置动画时间为2妙

         animation.setRepeatCount(2);//设置重复次数，因此总共3次

         animation.setRepeatMode(Animation.REVERSE);//设置重复模式

         iv.startAnimation(animation);

     }

     //缩放图片

     public void click2(View view){

         //第一个参数为开始x轴缩放坐标;第二个参数为结束时x轴缩放坐标

         //第三个参数为开始y轴缩放坐标;第四个参数为结束时y轴缩放坐标

         //第五个参数为中心x坐标以什么为参照,Animation.RELATIVE_TO_SELF说明以自己为参照;第六个参数为参照坐标比例;第七、八与第五、六相同,只不过它指的是y轴

         ScaleAnimation animation = new ScaleAnimation(0.2f, 2.0f, 0.2f, 2.0f, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);

         animation.setDuration(2000);

         animation.setRepeatCount(2);

         animation.setRepeatMode(Animation.REVERSE);

         iv.startAnimation(animation);

     }

     //旋转

     public void click3(View view){

         //第一参数，开始旋转角度

         //第二个参数为旋转到多少度

         //第3-6个参数与缩放的第5-8的参数相同

         RotateAnimation animation = new RotateAnimation(0, 360, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);

         animation.setDuration(2000);

         animation.setRepeatCount(2);

         animation.setRepeatMode(Animation.REVERSE);

         iv.startAnimation(animation);

     }

     //平移

     public void click4(View view){

         //x轴

         //第一个参数为参照类型:Animation.RELATIVE_TO_PARENT以父窗口为参照

         //第二个参数为开始坐标比例

         //第三个同第一个；第四个参数是说明要平移多长的比例;1.0说明要有父窗口的宽度

         //y轴同上

         TranslateAnimation animation = new TranslateAnimation(Animation.RELATIVE_TO_PARENT, 0.0f, Animation.RELATIVE_TO_PARENT, 1.0f, Animation.RELATIVE_TO_PARENT, 0.0f, Animation.RELATIVE_TO_PARENT, 1.0f);

         animation.setDuration(2000);

         animation.setRepeatCount(2);

         animation.setRepeatMode(Animation.REVERSE);

         iv.startAnimation(animation);

     }

     //组合动画

     public void click5(View view){

         AnimationSet set = new AnimationSet(false);

         TranslateAnimation ta = new TranslateAnimation(Animation.RELATIVE_TO_PARENT, 0.0f, Animation.RELATIVE_TO_PARENT, 1.0f, Animation.RELATIVE_TO_PARENT, 0.0f, Animation.RELATIVE_TO_PARENT, 1.0f);

         ta.setDuration(2000);

         ta.setRepeatCount(2);

         ta.setRepeatMode(Animation.REVERSE);

         RotateAnimation ra = new RotateAnimation(0, 360, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);

         ra.setDuration(2000);

         ra.setRepeatCount(2);

         ra.setRepeatMode(Animation.REVERSE);

         ScaleAnimation sa = new ScaleAnimation(0.2f, 2.0f, 0.2f, 2.0f, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);

         sa.setDuration(2000);

         sa.setRepeatCount(2);

         sa.setRepeatMode(Animation.REVERSE);

         set.addAnimation(ta);

         set.addAnimation(ra);

         set.addAnimation(sa);

         iv.startAnimation(set);

     }

 }