Android(安卓)GridView九宫图

属性名称	描述
android:columnWidth	设置列的宽度。
android:gravity	设置此组件中的内容在组件中的位置。可选的值有：top、bottom、left、right、center_vertical、 fill_vertical、center_horizontal、fill_horizontal、center、fill、 clip_vertical可以多选，用“\|”分开。
android:horizontalSpacing	两列之间的间距。
android:numColumns	设置列数。
android:stretchMode	缩放模式。
android:verticalSpacing	两行之间的间距。

案例一：

1.定义一个布局文件：gridview.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="wrap_content"     android:layout_height="wrap_content">    <GridView        android:id="@+id/gridview_main"        android:layout_width="wrap_content"        android:layout_height="wrap_content"         android:numColumns="auto_fit"        android:verticalSpacing="1dp"        android:horizontalSpacing="1dp"        android:columnWidth="90dp"        android:stretchMode="columnWidth"        android:gravity="center"        >    </GridView></LinearLayout>

android:numColumns="auto_fit"--列数设置为自动；

android:columnWidth="90dp"--每列的列宽，也就是item的宽度

android:verticalSpacing="1dp"--两行之间的边距

android:horizontalSpacing="1dp"--两列之间的边距

android:stretchMode="columnWidth"--缩放与列宽大小同步

2。接下来定义gridview_item.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="wrap_content"     android:layout_height="wrap_content"    android:orientation="vertical"    >    <ImageView        android:id="@+id/gridview_imageview"        android:layout_width="wrap_content"        android:layout_height="wrap_content"      >    </ImageView>    <TextView         android:id="@+id/gridview_textview"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="TextView01"        android:gravity="center"      /></LinearLayout>

3.最后定义Java的源代码了，GridViewDemo.java

package com.test;import java.util.ArrayList;import java.util.HashMap;import android.app.Activity;import android.os.Bundle;import android.view.View;import android.widget.AdapterView;import android.widget.AdapterView.OnItemClickListener;import android.widget.GridView;import android.widget.SimpleAdapter;public class GridViewDemo extends Activity {int [] image={R.drawable.android,R.drawable.blackberry,R.drawable.windowshone,R.drawable.windowshone,R.drawable.blackberry,R.drawable.android,R.drawable.windowshone,R.drawable.ios,R.drawable.blackberry};private GridView gridView;@Overrideprotected void onCreate(Bundle savedInstanceState) {// TODO Auto-generated method stubsuper.onCreate(savedInstanceState);setContentView(R.layout.gridview_main);gridView = (GridView)findViewById(R.id.gridview_main);//生成动态数组，并且转入数据 ArrayList<HashMap<String, Object>>  list=new ArrayList<HashMap<String,Object>>();for(int i=0;i<9;i++){HashMap<String, Object>  map = new HashMap<String, Object>();   map.put("ItemImage", image[i]);//添加图像资源的ID     map.put("itemtext","Amigos_pop-"+String.valueOf(i));   list.add(map);} //生成适配器的ImageItem <====> 动态数组的元素，两者一一对应  SimpleAdapter   adapter=new SimpleAdapter(this, //数据来源 list,R.layout.gridview_item,//XML实现  new String[]{"ItemImage","itemtext"}, //动态数组与ImageItem对应的子项          new int[]{R.id.gridview_imageview,R.id.gridview_textview}//  //ImageItem的XML文件里面的一个ImageView,两个TextView ID         ); //添加并且显示  gridView.setAdapter(adapter);//添加消息处理gridView.setOnItemClickListener(clickListener);}  //当AdapterView被单击(触摸屏或者键盘)，则返回的Item单击事件  private  OnItemClickListener  clickListener=new OnItemClickListener() {@Overridepublic void onItemClick(AdapterView<?> arg0,//The AdapterView where the click happened                   View arg1,//The view within the AdapterView that was clicked                  int arg2,//The position of the view in the adapter                  long arg3//The row id of the item that was clicked  ) {HashMap<String, Object>  item=(HashMap<String, Object>)arg0.getItemAtPosition(arg2);setTitle((String)item.get("itemtext"));}};}

4：执行效果：

===============================================================================

案例二：同样的效果：

布局文件使用上面一样的：

定义一个ImageAdapter类，此类继承BaseAdapter如下：

package com.test;import android.content.Context;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.GridView;import android.widget.ImageView;public class GridViewAdapter extends BaseAdapter {//定义Contextprivate Context  mContext;//定义整形数组 （图片资源）private  int []  mimages={ R.drawable.android,R.drawable.blackberry,R.drawable.windowshone, R.drawable.windowshone,R.drawable.blackberry,R.drawable.android, R.drawable.windowshone,R.drawable.ios,R.drawable.blackberry};public GridViewAdapter(Context  c) {mContext=c;}//获取图片的个数@Overridepublic int getCount() {// TODO Auto-generated method stubreturn mimages.length;}   // 获取图片在库中的位置@Overridepublic Object getItem(int position) {// TODO Auto-generated method stubreturn position;}  //获取图片ID@Overridepublic long getItemId(int position) {// TODO Auto-generated method stubreturn position;}@Overridepublic View getView(int position, View convertView, ViewGroup parent) {       ImageView mimageView;       if(convertView==null)       {       //给Imageview设置资源       mimageView = new ImageView(mContext);       //设置布局图片120*120显示          mimageView.setLayoutParams(new GridView.LayoutParams(85, 85));              mimageView.setScaleType(ImageView.ScaleType.CENTER_CROP);              mimageView.setPadding(8, 8, 8, 8);       }else       {       mimageView=(ImageView) convertView;        }       mimageView.setImageResource(mimages[position]);   return mimageView;}}

package com.test;import java.util.ArrayList;import java.util.HashMap;import android.app.Activity;import android.os.Bundle;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;public class GridViewDemo_2 extends Activity {private GridView  gridView;@Overrideprotected void onCreate(Bundle savedInstanceState) {// TODO Auto-generated method stubsuper.onCreate(savedInstanceState);setContentView(R.layout.gridview_main);gridView = (GridView)findViewById(R.id.gridview_main);gridView.setAdapter(new GridViewAdapter(this));//调用GridViewAdaptergridView.setOnItemClickListener(clickListener);}private  OnItemClickListener  clickListener =new OnItemClickListener() {@Overridepublic void onItemClick(AdapterView<?> arg0, View arg1, int position,long id) {Toast.makeText(GridViewDemo_2.this, ""+position,Toast.LENGTH_SHORT).show();//显示信息; }};}

效果：

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