[img]http://dl.iteye.com/upload/picture/pic/103300/3595ec77-39b8-32cb-bcc2-bf8350172296.jpg[/img]

[code]
public class ImageShowActivity extends Activity implements
AdapterView.OnItemSelectedListener, ViewSwitcher.ViewFactory {
CheckBox plain_cb;
CheckBox serif_cb;
CheckBox italic_cb;
CheckBox bold_cb;



@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);

setContentView(R.layout.image_show);
setTitle("ImageShowActivity");
//展示图片的父类
mSwitcher = (ImageSwitcher) findViewById(R.id.switcher);
mSwitcher.setFactory(this);
mSwitcher.setInAnimation(AnimationUtils.loadAnimation(this,
android.R.anim.fade_in));
mSwitcher.setOutAnimation(AnimationUtils.loadAnimation(this,
android.R.anim.fade_out));
//下面的图片走廊
Gallery g = (Gallery) findViewById(R.id.gallery);
g.setAdapter(new ImageAdapter(this));
g.setOnItemSelectedListener(this);
}
//图片走廊上得触发事件
public void onItemSelected(AdapterView parent, View v, int position, long id) {
mSwitcher.setImageResource(mImageIds[position]);//这里完成切换
}

public void onNothingSelected(AdapterView parent) {
}
//mSwitcher.setFactory(this);必须实现的方法，这里配置switcher的一些初始化参数
public View makeView() {//viewFactory的方法
ImageView i = new ImageView(this);//这就是个父容器，俗称相框
i.setBackgroundColor(0xFF000000);
i.setScaleType(ImageView.ScaleType.FIT_CENTER);
//设置图片的布局 与父容器匹配模式
i.setLayoutParams(new ImageSwitcher.LayoutParams(LayoutParams.FILL_PARENT,
LayoutParams.FILL_PARENT));
return i;
}

private ImageSwitcher mSwitcher;
//这个适配器类是gallery的东西
public class ImageAdapter extends BaseAdapter {
public ImageAdapter(Context c) {//这里传过来的就是gallery
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) {
//设置图片走廊的一些东西
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.picture_frame);
return i;
}

private Context mContext;

}

private Integer[] mThumbIds = {
R.drawable.sample_thumb_0, R.drawable.sample_thumb_1,
R.drawable.sample_thumb_2, R.drawable.sample_thumb_3,
R.drawable.sample_thumb_4, R.drawable.sample_thumb_5,
R.drawable.sample_thumb_6, R.drawable.sample_thumb_7};

private Integer[] mImageIds = {
R.drawable.sample_0, R.drawable.sample_1, R.drawable.sample_2,
R.drawable.sample_3, R.drawable.sample_4, R.drawable.sample_5,
R.drawable.sample_6, R.drawable.sample_7};


}
[/code]