Android中如何实现GridView的水平拖动，固定行数，有点类似Gallery的效果！

有点像实现现有GridView相反的效果，比如固定了是现实3行，然后实现列的水平滚动！
不知道是不是用GridView实现。最好能有例子代码！ --------------------编程问答-------------------- --------------------编程问答-------------------- 没做过，不过能提供个思路说不定能用到。

方法1.得到数据后计算列数，动态指定列数，行数就定了。
方法2.试试用TableLayout
--------------------编程问答-------------------- 自定义一个view --------------------编程问答-------------------- 用Gallery加ImageSwitecher来实现

public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.gallery_1);

        Gallery g = (Gallery) findViewById(R.id.gallery);
        g.setAdapter(new ImageAdapter(this));

        g.setOnItemClickListener(new OnItemClickListener() {
            public void onItemClick(AdapterView parent, View v, int position, long id) {
                Toast.makeText(Gallery1.this, "" + position, Toast.LENGTH_SHORT).show();
            }
        });

        registerForContextMenu(g);
    }

    @Override
    public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
        menu.add(R.string.gallery_2_text);
    }

    @Override
    public boolean onContextItemSelected(MenuItem item) {
        AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
        Toast.makeText(this, "Longpress: " + info.position, Toast.LENGTH_SHORT).show();
        return true;
    }

    public class ImageAdapter extends BaseAdapter {
        int mGalleryItemBackground;

        public ImageAdapter(Context c) {
            mContext = c;
            // See res/values/attrs.xml for the <declare-styleable> that defines
            // Gallery1.
            TypedArray a = obtainStyledAttributes(R.styleable.Gallery1);
            mGalleryItemBackground = a.getResourceId(
                    R.styleable.Gallery1_android_galleryItemBackground, 0);
            a.recycle();
        }

        public int getCount() {
            return mImageIds.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(mImageIds[position]);
            i.setScaleType(ImageView.ScaleType.FIT_XY);
            i.setLayoutParams(new Gallery.LayoutParams(136, 88));

            // The preferred Gallery item background
            i.setBackgroundResource(mGalleryItemBackground);

            return i;
        }

        private Context mContext;

        private Integer[] mImageIds = {
                R.drawable.gallery_photo_1,
                R.drawable.gallery_photo_2,
                R.drawable.gallery_photo_3,
                R.drawable.gallery_photo_4,
                R.drawable.gallery_photo_5,
                R.drawable.gallery_photo_6,
                R.drawable.gallery_photo_7,
                R.drawable.gallery_photo_8
        };
    } --------------------编程问答-------------------- 楼上我用了你的代码，在我这只能实现单行的。
还有不知道为什么
  TypedArray a = obtainStyledAttributes(R.styleable.Gallery1);
  mGalleryItemBackground = a.getResourceId(
  R.styleable.Gallery1_android_galleryItemBackground, 0);
这几句代码报错。。 --------------------编程问答-------------------- 楼主，你的问题最后解决了吗？我现在也碰到了这个问题，解决了能否分享下代码呢？ --------------------编程问答-------------------- 楼主的问题解决没有，现在也有这样的需求，解决了能不能共享一下代码？ --------------------编程问答-------------------- 解决了不告诉我们。不厚道啊。。。怎么解决。。

补充：移动开发 ,  Android