public   class  mainactivity  extends  Activity  implements

  OnItemSelectedListener, ViewFactory {

  private  ImageSwitcher is;

  private  Gallery gallery;

  private  Integer[] mThumbIds  =  { R.drawable.b, R.drawable.c,

   R.drawable.d, R.drawable.f, R.drawable.g,

   };

  private  Integer[] mImageIds  =  { R.drawable.b, R.drawable.c,

   R.drawable.d, R.drawable.f, R.drawable.g, };

@Override

  protected   void  onCreate(Bundle savedInstanceState) {

   super .onCreate(savedInstanceState);

  requestWindowFeature(Window.FEATURE_NO_TITLE);

  setContentView(R.layout.main);

  is  =  (ImageSwitcher) findViewById(R.id.switcher);

  is.setFactory( this );

  is.setInAnimation(AnimationUtils.loadAnimation( this ,

    android.R.anim.fade_in));

  is.setOutAnimation(AnimationUtils.loadAnimation( this ,

    android.R.anim.fade_out));

  gallery  =  (Gallery) findViewById(R.id.gallery);

  gallery.setAdapter( new  ImageAdapter( this ));

  gallery.setOnItemSelectedListener( this );

 }

 @Override

  public  View makeView() {

  ImageView i  =   new  ImageView( this );

  i.setBackgroundColor( 0xFF000000 );

  i.setScaleType(ImageView.ScaleType.FIT_CENTER);

  i.setLayoutParams( new  ImageSwitcher.LayoutParams(

    LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));

   return  i;

 }

  public   class  ImageAdapter  extends  BaseAdapter {

   public  ImageAdapter(Context c) {

   mContext  =  c;

  }

   public   int  getCount() {

    return  mThumbIds.length;

  }

   public  Object getItem( int  position) {

    return  position;

  }

   public   long  getItemId( int  position) {

    return  position;

  }

   public  View getView( int  position, View convertView, ViewGroup parent) {

   ImageView i  =   new  ImageView(mContext);

   i.setImageResource(mThumbIds[position]);

   i.setAdjustViewBounds( true );

   i.setLayoutParams( new  Gallery.LayoutParams(

     LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));

   i.setBackgroundResource(R.drawable.e);

    return  i;

  }

   private  Context mContext;

 }

 @Override

  public   void  onItemSelected(AdapterView <?>  parent, View view,  int  position,

    long  id) {

  is.setImageResource(mImageIds[position]);

 }

 @Override

  public   void  onNothingSelected(AdapterView <?>  parent) {

 }

}

<? xml version="1.0" encoding="utf-8" ?>

< RelativeLayout  xmlns:android ="http://schemas.android.com/apk/res/android"  

    android:layout_width ="match_parent"  

    android:layout_height ="match_parent" >  

    

     < ImageSwitcher  android:id ="@+id/switcher"

        android:layout_width ="match_parent"

        android:layout_height ="match_parent"

        android:layout_alignParentTop ="true"

        android:layout_alignParentLeft ="true"

     />

    

     < Gallery  android:id ="@+id/gallery"

        android:background ="#55000000"

        android:layout_width ="match_parent"

        android:layout_height ="60dp"

        android:layout_alignParentBottom ="true"

        android:layout_alignParentLeft ="true"

        

        android:gravity ="center_vertical"

        android:spacing ="16dp"

     />

</ RelativeLayout >