android imageview 图片、背景切换效果 附

android imageview 入门实例 主要实现了 图片以及背景的切换效果，详见截图

/* AUTO-GENERATED FILE.  DO NOT MODIFY.
 *
 * This class was automatically generated by the
 * aapt tool from the resource data it found.  It
 * should not be modified by hand.
 */

package com.test;

public final class R {
    public static final class attr {
    }
    public static final class drawable {
        public static final int icon=0x7f020000;
        public static final int left=0x7f020001;
        public static final int oa=0x7f020002;
        public static final int right=0x7f020003;
    }
    public static final class id {
        public static final int myButton1=0x7f050003;
        public static final int myButton2=0x7f050004;
        public static final int myImageView1=0x7f050001;
        public static final int myImageView2=0x7f050002;
        pub

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2013-03-12 12:44  Android_imageView\
     文件         280  2010-03-28 23:23  Android_imageView\.classpath
     文件         845  2010-03-28 23:23  Android_imageView\.project
     文件         680  2010-03-28 23:23  Android_imageView\AndroidManifest.xml
     目录           0  2010-07-08 11:19  Android_imageView\assets\
     目录           0  2013-03-12 12:44  Android_imageView\bin\
     文件        2576  2010-06-23 09:56  Android_imageView\bin\classes.dex
     目录           0  2013-03-12 12:44  Android_imageView\bin\com\
     目录           0  2013-03-12 12:44  Android_imageView\bin\com\test\
     文件         785  2010-06-23 09:56  Android_imageView\bin\com\test\ImageViewActivity.class
     文件         310  2010-06-23 09:56  Android_imageView\bin\com\test\R$attr.class
     文件         453  2010-06-23 09:56  Android_imageView\bin\com\test\R$drawable.class
     文件         494  2010-06-23 09:56  Android_imageView\bin\com\test\R$id.class
     文件         364  2010-06-23 09:56  Android_imageView\bin\com\test\R$layout.class
     文件         397  2010-06-23 09:56  Android_imageView\bin\com\test\R$string.class
     文件         461  2010-06-23 09:56  Android_imageView\bin\com\test\R.class
     文件       78956  2010-06-23 09:56  Android_imageView\bin\imageView.apk
     文件       75710  2010-06-23 09:56  Android_imageView\bin\resources.ap_
     文件         449  2010-03-28 23:23  Android_imageView\default.properties
     目录           0  2013-03-12 12:44  Android_imageView\gen\
     目录           0  2013-03-12 12:44  Android_imageView\gen\com\
     目录           0  2013-03-12 12:44  Android_imageView\gen\com\test\
     文件        1102  2010-06-23 09:56  Android_imageView\gen\com\test\R.java
     目录           0  2013-03-12 12:44  Android_imageView\res\
     目录           0  2013-03-12 12:44  Android_imageView\res\drawable-hdpi\
     文件        4147  2010-03-28 23:23  Android_imageView\res\drawable-hdpi\icon.png
     文件       22752  2010-03-28 23:25  Android_imageView\res\drawable-hdpi\left.png
     文件       41426  2010-03-28 23:25  Android_imageView\res\drawable-hdpi\oa.png
     文件       16496  2010-03-28 23:25  Android_imageView\res\drawable-hdpi\right.png
     目录           0  2013-03-12 12:44  Android_imageView\res\drawable-ldpi\
     文件        1723  2010-03-28 23:23  Android_imageView\res\drawable-ldpi\icon.png
............此处省略10个文件信息