<span style="font-size:18px;color:#330033;">package com.main;

import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.Toast;

public class MainActivity extends Activity {
	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		GridView gv = (GridView) findViewById(R.id.GridView1);
		// 为GridView设置适配器
		gv.setAdapter(new MyAdapter(this));
		// 注册监听事件
		gv.setOnItemClickListener(new OnItemClickListener() {
			public void onItemClick(AdapterView<?> parent, View v,
					int position, long id) {
				Toast.makeText(MainActivity.this, "pic" + position,
						Toast.LENGTH_SHORT).show();
			}
		});
	}
}

// 自定义适配器
class MyAdapter extends BaseAdapter {
	// 上下文对象
	private Context context;
	// 图片数组
	private Integer[] imgs = { R.drawable.bg10, R.drawable.bg3,
			R.drawable.bg10, R.drawable.bg2, R.drawable.bg6, R.drawable.bg4,
			R.drawable.bg7, R.drawable.bg3, R.drawable.bg9, R.drawable.bg9,
			R.drawable.bg3, R.drawable.bg3, R.drawable.bg10, R.drawable.bg3,
			R.drawable.bg10, R.drawable.bg2, R.drawable.bg6, R.drawable.bg4,
			R.drawable.bg7, R.drawable.bg3, R.drawable.bg9,

	};

	MyAdapter(Context context) {
		this.context = context;
	}

	public int getCount() {
		return imgs.length;
	}

	public Object getItem(int item) {
		return item;
	}

	public long getItemId(int id) {
		return id;
	}

	// 创建View方法
	public View getView(int position, View convertView, ViewGroup parent) {
		ImageView imageView;
		if (convertView == null) {
			imageView = new ImageView(context);
			imageView.setLayoutParams(new GridView.LayoutParams(75, 75));// 设置ImageView对象布局
			imageView.setAdjustViewBounds(false);// 设置边界对齐
			imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);// 设置刻度的类型
			imageView.setPadding(8, 8, 8, 8);// 设置间距
		} else {
			imageView = (ImageView) convertView;
		}
		imageView.setImageResource(imgs[position]);// 为ImageView设置图片资源
		return imageView;
	}
}
</span>

<span style="font-size:18px;color:#330033;"><?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <GridView
        android:id="@+id/GridView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:columnWidth="90dp"
        android:gravity="center"
        android:horizontalSpacing="10dp"
        android:numColumns="3"
        android:stretchMode="columnWidth"
        android:verticalSpacing="10dp" />

</LinearLayout></span>

王立平--Gridview