android 控件 网格视图(GridView)

1、继承关系和子类：
java.lang.Object
   ↳android.view.View
  ↳android.view.ViewGroup
↳android.widget.AdapterView<T extends android.widget.Adapter>
↳android.widget.AbsListView
 ↳android.widget.GridView
2、定义：
A view that shows items in two-dimensional scrolling grid. The items in the grid come from the ListAdapter associated with this view.
GridView是以九宫格方式展现子模块的最佳选择。
3、XML重要属性：
android:columnWidth Specifies the fixed width for each column. 
android:gravity Specifies the gravity within each cell. 
android:horizontalSpacing Defines the default horizontal spacing between columns. 
android:numColumns Defines how many columns to show. 
android:stretchMode Defines how columns should stretch to fill the available empty space, if any. 
android:verticalSpacing Defines the default vertical spacing between rows.

4、重要方法：
相关xml属性的setter和getter函数
5、实战：
布局文件 activity_main.xml

<?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="wrap_content"    android:orientation="vertical" >    <!-- 设置4列 -->    <GridView        android:id="@+id/GridView1"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:numColumns="4" /></LinearLayout>

每一项的布局文件: items.xml

<?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" >    <ImageView        android:id="@+id/image"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:paddingLeft="10px"        android:scaleType="fitCenter" />    <TextView        android:id="@+id/title"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_gravity="center"        android:padding="5px" /></LinearLayout>

java代码

package com.example.gridviewdemo;import java.util.ArrayList;import java.util.HashMap;import android.os.Bundle;import android.support.v7.app.ActionBarActivity;import android.widget.GridView;import android.widget.SimpleAdapter;/** * 介绍GridView的简单使用 * @author pengpeng * 2014年5月27日 23:54:27 * * */public class MainActivity extends ActionBarActivity {@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);//显示GridView的界面GridView gridView = (GridView) findViewById(R.id.GridView1);//准备数据   图标加文字int[] image = { R.drawable.ic_launcher, R.drawable.ic_launcher,R.drawable.ic_launcher, R.drawable.ic_launcher,R.drawable.ic_launcher, R.drawable.ic_launcher,R.drawable.ic_launcher, R.drawable.ic_launcher };String[] text = { "a", "b", "c", "d", "e", "f", "g", "h" };ArrayList<HashMap<String, Object>> imagelist = new ArrayList<HashMap<String, Object>>();for (int i = 0; i < image.length; i++) {HashMap<String, Object> map = new HashMap<String, Object>();map.put("image", image[i]);map.put("text", text[i]);imagelist.add(map);}//设置适配器SimpleAdapter simpleAdapter = new SimpleAdapter(this, imagelist,R.layout.items, new String[] { "image", "text" }, new int[] {R.id.image, R.id.title });//把适配器设置到GridView的一个实例上gridView.setAdapter(simpleAdapter);}}

参考1:http://developer.android.com/intl/zh-cn/reference/android/widget/GridView.html
参考2:http://www.tuicool.com/articles/JvMrEj