实现效果：

activity文件代码：

 

package com.tmacsky;import android.app.Activity;import android.os.Bundle;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.GridView;import android.widget.ImageView;public class MyGridViewActivity extends Activity {	//定义图片数组	private int[] mImages = new int[]{R.drawable.ha,R.drawable.hb,R.drawable.hc,R.drawable.hd,R.drawable.he,R.drawable.hf,R.drawable.hg,R.drawable.hh};	@Override	protected void onCreate(Bundle savedInstanceState) {		// TODO Auto-generated method stub		super.onCreate(savedInstanceState);		setContentView(R.layout.gridview);		GridView gView = (GridView)findViewById(R.id.gView);		//建立数据源，设置adapter		gView.setAdapter(new ImageAdapter());	}	class ImageAdapter extends BaseAdapter{		public int getCount() {			// TODO Auto-generated method stub			return mImages.length;		}		public Object getItem(int position) {			// TODO Auto-generated method stub			return mImages[position];		}		public long getItemId(int position) {			// TODO Auto-generated method stub			return mImages[position];		}		public View getView(int position, View convertView, ViewGroup parent) {			// TODO Auto-generated method stub			ImageView imageView = new ImageView(MyGridViewActivity.this);			imageView.setLayoutParams(new GridView.LayoutParams(85, 85));			imageView.setPadding(5, 5, 5, 5);			imageView.setImageResource(mImages[position]);			return imageView;		}	}}

对应gridview.xml的代码：

 

 

更多详情参看官方帮助文档里的GridView源码：