android GridView视图的案例

gridview.xml文件：

<?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" >
    
    <TextView android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="这是一个GridView网格视图的案例"
        android:textSize="20px"/>
    
    <TextView android:id="@+id/tv"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:textSize="15px"
        android:textColor="#ffffff"/>
   
   
	<GridView android:id="@+id/gridview" 
	android:layout_width="fill_parent"
	android:layout_height="fill_parent" 
	android:numColumns="1"
	android:verticalSpacing="10dp" 
	android:horizontalSpacing="10dp"
	android:stretchMode="columnWidth"
	android:gravity="center" /> 
</LinearLayout>

griditem.xml

<?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="wrap_content"
    android:orientation="horizontal" >
    <ImageView android:layout_height="wrap_content" 
        android:id="@+id/itemIamge"
		android:layout_width="wrap_content" 
		android:layout_centerHorizontal="true">
	</ImageView>
    <TextView android:layout_width="wrap_content"
		android:layout_height="wrap_content"
		android:text="TextView01" 
		android:layout_centerHorizontal="true"
		android:id="@+id/itemText">
	</TextView>

</LinearLayout>

ImageAdapter.java文件如下：

package com.example.baseexample;

import java.util.List;


import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;

public class ImageAdapter extends BaseAdapter {
	
	private class GridHolder{
		ImageView appImage;
		TextView appName;
	}
	
	private List<GridInfo> list;
	private LayoutInflater mInflater;
	
	
	
	
	
	
	private Context mContext;

	public ImageAdapter(Context c){
		super();
		this.mContext = c;
	}
	
	public void setList(List<GridInfo> list) {
		this.list = list;
		mInflater = (LayoutInflater) mContext
				.getSystemService(Context.LAYOUT_INFLATER_SERVICE);

	}

	public int getCount() {
		// TODO Auto-generated method stub
		return list.size();
	}

	@Override
	public Object getItem(int index) {

		return list.get(index);
	}

	@Override
	public long getItemId(int index) {
		return index;
	}

	@Override
	public View getView(int index, View convertView, ViewGroup parent) {
		GridHolder holder;
		if (convertView == null) {   
			convertView = mInflater.inflate(R.layout.griditem, null);   
			holder = new GridHolder();
			holder.appImage = (ImageView)convertView.findViewById(R.id.itemIamge);
			holder.appName = (TextView)convertView.findViewById(R.id.itemText);
			convertView.setTag(holder);   

		}else{
			 holder = (GridHolder) convertView.getTag();   

		}
		GridInfo info = list.get(index);
		if (info != null) {   
			holder.appName.setText(info.getName());
			holder.appImage.setImageResource(info.getAppImage());
		}
		return convertView;
	}

}

GridViewActivity.java 文件如下：

package com.example.baseexample;

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.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.GridView;
import android.widget.LinearLayout;
import android.widget.SimpleAdapter;
import android.widget.TextView;

public class GridViewActivity extends Activity {
	private TextView tv;
	private GridView gv;
	private List<GridInfo> bookList;
	private List<Map<String,Object>> tmpList;
	
	public void onCreate(Bundle savedInstanceState){
		super.onCreate(savedInstanceState);
		setContentView(R.layout.gridview);
		
		gv = (GridView)findViewById(R.id.gridview);
		
		int[] picIDs={R.drawable.a,R.drawable.b,R.drawable.c,R.drawable.d,R.drawable.e,R.drawable.f};
		int[] bookIDs={R.string.a,R.string.b,R.string.c,R.string.d,R.string.e,R.string.f};
		
		
		//////////////////////////////////////////////////////////////////
		//使用SimpleAdapter
		int rowCnt = picIDs.length;
		tmpList = new ArrayList<Map<String,Object>>();
		for(int i=0;i<rowCnt;i++){
			HashMap<String, Object> map = new HashMap<String, Object>();
			map.put("picCol", picIDs[i]);
			map.put("bookCol", this.getResources().getString(bookIDs[i]));
			tmpList.add(map);
		}
		SimpleAdapter ada = new SimpleAdapter(this,tmpList,R.layout.griditem,new String[]{"picCol","bookCol"},new int[]{R.id.itemIamge,R.id.itemText});
		gv.setAdapter(ada);
		
		//////////////////////////////////////////////////////////////////////////
		//使用自定义Adapter,继承BaseAdapter
//		bookList = new ArrayList<GridInfo>();
//		for(int i=0;i<picIDs.length;i++){
//			bookList.add(new GridInfo(this.getResources().getString(bookIDs[i]), picIDs[i]));
//		}
//		ImageAdapter adapter = new ImageAdapter(this);
//		
//		adapter.setList(bookList);
//		gv.setAdapter(adapter);
		
		////////////////////////////////////////////////////////////////////////////////
		gv.setOnItemClickListener(new OnItemClickListener(){

			@Override
			public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
					long arg3) {
				
				tv = (TextView)findViewById(R.id.tv);
				LinearLayout l1=(LinearLayout)arg1;
				TextView t1=(TextView)l1.getChildAt(1);
				String str = "你选择的书为"+t1.getText().toString();
				tv.setText(str);
			}
			
		});
		
	}
}