Android_gridVIew

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.example.gridviewdemo.MainActivity" >

    <!-- GridView是可滚动的网格，一般用来显示多张图片。
         android:horizontalSpacing="10dp"两列之间的间距是10dp
        android:numColumns="auto_fit"自动分配（安卓自提供），也可些一行显示几个
        android:verticalSpacing="10dp" 两行之间的间距是10dp
        android:stretchMode="spacingWidth"缩放与列宽大小同步
        -->
    <GridView
        android:id="@+id/gridView_1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="10dp"
        android:gravity="center_horizontal"
        android:horizontalSpacing="10dp"
        android:numColumns="3"
        android:verticalSpacing="10dp" >
    </GridView>
<!-- 运行效果中，各列之间的间距大于10dp，是因为将列数设为了3行，因此会平均分布 -->
</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" 
    android:gravity="center"
    android:background="#000000">
    <ImageView 
        android:id="@+id/image"
        android:layout_width="60dp"
        android:layout_height="60dp"
        android:src="@drawable/address_book"
        />

    <TextView
        android:id="@+id/text"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textColor="#ffffff"
        android:layout_marginTop="5dp"
        android:text="名字"/>

</LinearLayout>

package com.example.gridviewdemo;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.GridView;
import android.widget.SimpleAdapter;
import android.widget.Toast;

/*
 * GridView:以以网格形式显示页面 
 * 创建GridView的步骤：
 *     1.准备数据源
 *     2.新建适配器（SimpleAdapter）
 *     3、GridView加载适配器
 *  4.Gridview配置事件监听器（OnItemClickListener）
 */
public class MainActivity extends Activity implements OnItemClickListener {
    private GridView gridView;
    private SimpleAdapter adapter;
    private List<Map<String, Object>> list;
    private String[] iconNames;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        gridView = (GridView) findViewById(R.id.gridView_1);
        list = new ArrayList<Map<String, Object>>();
        adapter = new SimpleAdapter(this, getData(), R.layout.item,
                new String[] { "图片", "文字" },
                new int[] { R.id.image, R.id.text });
        gridView.setAdapter(adapter);
        gridView.setOnItemClickListener(this);//设置监听器
    }

    private List<Map<String, Object>> getData() {
        iconNames = new String[] { "联系人", "日历", "照相机", "时钟", "游戏", "短信", "铃声", "设置",
                "语音", "天气", "浏览器", "YouTube" };
        int[] drawable = { R.drawable.address_book, R.drawable.calendar,
                R.drawable.camera, R.drawable.clock, R.drawable.games_control,
                R.drawable.messenger, R.drawable.ringtone, R.drawable.settings,
                R.drawable.speech_balloon, R.drawable.weather,
                R.drawable.world, R.drawable.youtube };
        for (int i = 0; i < iconNames.length; i++) {
            Map<String, Object> map = new HashMap<String, Object>();
            map.put("图片", drawable[i]);
            map.put("文字", iconNames[i]);
            list.add(map);
        }
    
        return list;
    }

    @Override
    public void onItemClick(AdapterView<?> parent, View view, int position,
            long id) {
        
        Toast.makeText(this,iconNames[position], Toast.LENGTH_SHORT).show();
        Log.i("Toast", iconNames[position]);
    }
}