为ListView每个Item上面的按钮添加事件

1.先看下效果图：

在这里仅供测试，我把数据都写死了，根据需要可以自己进行修改，此外实现ListView上面每个Item上的Button的事件有两种方法：

1.使用final变量扩展局部变量的生命周期范围主要代码（本文最后附全部代码）：//注意原本getView方法中的int position变量是非final的，现在改为final@Overridepublic View getView(final int position, View convertView, ViewGroup parent) {ViewHolder holder = null;if (convertView == null) {holder=new ViewHolder();//可以理解为从vlist获取view 之后把view返回给ListViewconvertView = mInflater.inflate(R.layout.vlist, null);holder.title = (TextView)convertView.findViewById(R.id.title);holder.info = (TextView)convertView.findViewById(R.id.info);holder.viewBtn = (Button)convertView.findViewById(R.id.view_btn);convertView.setTag(holder);}else {holder = (ViewHolder)convertView.getTag();}holder.title.setText((String)mData.get(position).get("title"));holder.info.setText((String)mData.get(position).get("info"));holder.viewBtn.setTag(position);//给Button添加单击事件 添加Button之后ListView将失去焦点 需要的直接把Button的焦点去掉holder.viewBtn.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {showInfo(position);}});//holder.viewBtn.setOnClickListener(MyListener(position));return convertView;}}//提取出来方便点public final class ViewHolder {public TextView title;public TextView info;public Button viewBtn;}public void showInfo(int position){ImageView img=new ImageView(ListViewActivity.this);img.setImageResource(R.drawable.b);new AlertDialog.Builder(this).setView(img).setTitle("详情"+position).setMessage("菜名："+title[position]+" 价格:"+info[position]).setPositiveButton("确定", new DialogInterface.OnClickListener() {@Overridepublic void onClick(DialogInterface dialog, int which) {}}).show();}

2.使用类记录每个Button的位置，使每个BUTTON都有自己的Listener主要代码：

//****************************************第二种方法，高手一般都用此种方法,具体原因，我还不清楚,有待研究public View getView(int position, View convertView, ViewGroup parent) {ViewHolder holder = null;MyListener myListener=null;if (convertView == null) {holder=new ViewHolder();//可以理解为从vlist获取view 之后把view返回给ListViewmyListener=new MyListener(position);convertView = mInflater.inflate(R.layout.vlist, null);holder.title = (TextView)convertView.findViewById(R.id.title);holder.info = (TextView)convertView.findViewById(R.id.info);holder.viewBtn = (Button)convertView.findViewById(R.id.view_btn);convertView.setTag(holder);}else {holder = (ViewHolder)convertView.getTag();}holder.title.setText((String)mData.get(position).get("title"));holder.info.setText((String)mData.get(position).get("info"));holder.viewBtn.setTag(position);//给Button添加单击事件 添加Button之后ListView将失去焦点 需要的直接把Button的焦点去掉holder.viewBtn.setOnClickListener( myListener);//holder.viewBtn.setOnClickListener(MyListener(position));return convertView;}}private class MyListener implements OnClickListener{int mPosition;public MyListener(int inPosition){mPosition= inPosition;}@Overridepublic void onClick(View v) {// TODO Auto-generated method stubToast.makeText(ListViewActivity.this, title[mPosition], Toast.LENGTH_SHORT).show();}}//提取出来方便点public final class ViewHolder {public TextView title;public TextView info;public Button viewBtn;}

3.全部代码

1.ListViewActivity.java全部代码：

package ms.ListView;import java.util.ArrayList;import java.util.HashMap;import java.util.List;import java.util.Map;import android.app.Activity;import android.app.AlertDialog;import android.content.Context;import android.content.DialogInterface;import android.os.Bundle;import android.view.LayoutInflater;import android.view.View;import android.view.View.OnClickListener;import android.view.ViewGroup;import android.widget.AdapterView;import android.widget.AdapterView.OnItemSelectedListener;import android.widget.BaseAdapter;import android.widget.Button;import android.widget.ImageView;import android.widget.ListView;import android.widget.TextView;import android.widget.Toast;public class ListViewActivity extends Activity {/** Called when the activity is first created. */private List<Map<String, Object>> mData;private int flag;public static String title[]=new String[]{"菜名0","菜名1","菜名2","菜名3","菜名4","菜名5","菜名6","菜名7","菜名8","菜名9"};public static String info[]=new String[]{ "￥：28","￥：28","￥：28","￥：28","￥：28","￥：28","￥：28","￥：28","￥：28","￥：28",};@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);mData = getData();ListView listView = (ListView) findViewById(R.id.listView);MyAdapter adapter = new MyAdapter(this);listView.setAdapter(adapter);}//获取动态数组数据 可以由其他地方传来(json等)private List<Map<String, Object>> getData() {List<Map<String, Object>> list = new ArrayList<Map<String, Object>>();for(int i=0;i<title.length;i++){Map<String, Object> map = new HashMap<String, Object>();map.put("title", title[i]);map.put("info", info[i]);list.add(map);}return list;}public class MyAdapter extends BaseAdapter {private LayoutInflater mInflater;public MyAdapter(Context context) {this.mInflater = LayoutInflater.from(context);}@Overridepublic int getCount() {// TODO Auto-generated method stubreturn mData.size();}@Overridepublic Object getItem(int position) {// TODO Auto-generated method stubreturn null;}@Overridepublic long getItemId(int position) {// TODO Auto-generated method stubreturn 0;}//****************************************final方法//注意原本getView方法中的int position变量是非final的，现在改为final@Overridepublic View getView(final int position, View convertView, ViewGroup parent) {ViewHolder holder = null;if (convertView == null) {holder=new ViewHolder();//可以理解为从vlist获取view 之后把view返回给ListViewconvertView = mInflater.inflate(R.layout.vlist, null);holder.title = (TextView)convertView.findViewById(R.id.title);holder.info = (TextView)convertView.findViewById(R.id.info);holder.viewBtn = (Button)convertView.findViewById(R.id.view_btn);convertView.setTag(holder);}else {holder = (ViewHolder)convertView.getTag();}holder.title.setText((String)mData.get(position).get("title"));holder.info.setText((String)mData.get(position).get("info"));holder.viewBtn.setTag(position);//给Button添加单击事件 添加Button之后ListView将失去焦点 需要的直接把Button的焦点去掉holder.viewBtn.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {showInfo(position);}});//holder.viewBtn.setOnClickListener(MyListener(position));return convertView;}}//****************************************第二种方法，高手一般都用此种方法,具体原因，，我还不清楚,有待研究//public View getView(int position, View convertView, ViewGroup parent) {// ViewHolder holder = null;// MyListener myListener=null;//if (convertView == null) {////holder=new ViewHolder(); //////可以理解为从vlist获取view 之后把view返回给ListView//myListener=new MyListener(position);////convertView = mInflater.inflate(R.layout.vlist, null);//holder.title = (TextView)convertView.findViewById(R.id.title);//holder.info = (TextView)convertView.findViewById(R.id.info);//holder.viewBtn = (Button)convertView.findViewById(R.id.view_btn);//convertView.setTag(holder);//}else {//holder = (ViewHolder)convertView.getTag();//}////holder.title.setText((String)mData.get(position).get("title"));//holder.info.setText((String)mData.get(position).get("info"));//holder.viewBtn.setTag(position);////给Button添加单击事件 添加Button之后ListView将失去焦点 需要的直接把Button的焦点去掉//holder.viewBtn.setOnClickListener( myListener);//////holder.viewBtn.setOnClickListener(MyListener(position));////return convertView;//}//}//// private class MyListener implements OnClickListener{//int mPosition;//public MyListener(int inPosition){//mPosition= inPosition;//}//@Override//public void onClick(View v) {//// TODO Auto-generated method stub//Toast.makeText(ListViewActivity.this, title[mPosition], Toast.LENGTH_SHORT).show();//}////}//////提取出来方便点public final class ViewHolder {public TextView title;public TextView info;public Button viewBtn;}public void showInfo(int position){ImageView img=new ImageView(ListViewActivity.this);img.setImageResource(R.drawable.b);new AlertDialog.Builder(this).setView(img).setTitle("详情"+position).setMessage("菜名："+title[position]+" 价格:"+info[position]).setPositiveButton("确定", new DialogInterface.OnClickListener() {@Overridepublic void onClick(DialogInterface dialog, int which) {}}).show();}}2.main.xml<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android=""android:layout_width="fill_parent"android:layout_height="fill_parent"android:orientation="vertical" ><ListViewandroid:id="@+id/listView"android:layout_width="fill_parent"android:layout_height="fill_parent"android:divider="@drawable/list_line"android:dividerHeight="1dip" /></LinearLayout>3.vlist.xml<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android=""android:layout_width="fill_parent"android:layout_height="fill_parent"android:orientation="vertical" ><ListViewandroid:id="@+id/listView"android:layout_width="fill_parent"android:layout_height="fill_parent"android:divider="@drawable/list_line"android:dividerHeight="1dip" /></LinearLayout>4.btn_detail_selecter.xml<?xml version="1.0" encoding="utf-8"?><selector xmlns:android=""><item android:drawable="@drawable/btn_detail_normal" android:state_enabled="true" android:state_focused="false" android:state_pressed="false"/><item android:drawable="@drawable/btn_detail_pressed" android:state_enabled="true" android:state_pressed="true"/><item android:drawable="@drawable/btn_detail_pressed" android:state_enabled="true" android:state_focused="true"/></selector>5.item.xml<?xml version="1.0" encoding="UTF-8"?><selector xmlns:android=""><item android:drawable="@drawable/item_higlight" android:state_focused="true" android:state_pressed="false"/><item android:drawable="@drawable/item_higlight" android:state_focused="false" android:state_pressed="true"/><item android:drawable="@drawable/item_higlight" android:state_selected="true"/><item android:drawable="@drawable/item_higlight" android:state_focused="true"/><item android:drawable="@drawable/item_higlight"/></selector>即使爬到最高的山上，一次也只能脚踏实地地迈一步。