<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" > <Gallery android:id="@+id/gallery" android:layout_width="fill_parent" android:layout_height="200px" > </Gallery> </LinearLayout>

@Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); //根据ID寻找到相册 Gallery gallery = (Gallery)this.findViewById(R.id.gallery); //初始化自定义的图片适配器 ImageAdapter adp = new ImageAdapter(this); //绑定适配器 gallery.setAdapter(adp); //监听图片选中事件 gallery.setOnItemClickListener(new OnItemClickListener() { @Override public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) { // TODO Auto-generated method stub //初始化“缩放动画”类的实例，表示从1倍放大到1.5倍，并且放大的中心点是图片的中心点 ScaleAnimation animation = new ScaleAnimation(1, 1.5f, 1, 1.5f, Animation.RELATIVE_TO_SELF,0.5f,Animation.RELATIVE_TO_SELF,0.5f); //从1倍到1.5倍需要1秒钟 animation.setDuration(1000); //开始执行动画 arg1.startAnimation(animation); } }); } //自定义适配器 public class ImageAdapter extends BaseAdapter{ //该值仅仅为了传递Activity private Context context; public ImageAdapter(Context context){ this.context = context; } //存放图片ID的数组，每个ID可以被ImageView所调用，从而显示图片 private int[] imageArray = { R.drawable.p01, R.drawable.p03, R.drawable.p04, R.drawable.p05, R.drawable.p07, R.drawable.p09, R.drawable.p21, R.drawable.p23, R.drawable.p33 }; @Override public int getCount() { // TODO Auto-generated method stub //返回数组的总数 return imageArray.length; } @Override public Object getItem(int arg0) { // TODO Auto-generated method stub return arg0; } @Override public long getItemId(int arg0) { // TODO Auto-generated method stub return arg0; } @Override public View getView(int arg0, View arg1, ViewGroup arg2) { // TODO Auto-generated method stub //实现Adapter的核心，即根据给定的数据返回什么样的控件 //您需要返回的是ImageView，因为您要实现的是相册 ImageView view = new ImageView(this.context); //获取指定索引的图片的ID int id = imageArray[arg0]; //将ID告诉ImageView,它就能找到图片 view.setImageResource(id); //对ImageView进行布局 view.setLayoutParams(new Gallery.LayoutParams(120,120)); //设置ImageView的拉升类型，这里采用居中，您可以尝试不同的类型 view.setScaleType(ImageView.ScaleType.FIT_CENTER); return view; } }