王立平--Gridview

<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>