android为ListView每个Item上面的按钮添加事件

//注意原本getView方法中的int position变量是非final的，现在改为final     @Override     public 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ListView         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(new View.OnClickListener() {                  @Override         public 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() {       @Override       public void onClick(DialogInterface dialog, int which) {       }     })     .show();   } 

//****************************************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;   } 

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",};       @Override   public 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);     }      @Override     public int getCount() {       // TODO Auto-generated method stub       return mData.size();     }      @Override     public Object getItem(int position) {       // TODO Auto-generated method stub       return null;     }      @Override     public long getItemId(int position) {       // TODO Auto-generated method stub       return 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     @Override     public 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ListView                  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(new View.OnClickListener() {                  @Override         public 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() {       @Override       public void onClick(DialogInterface dialog, int which) {       }     })     .show();   }       } 

<?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" >    <ListView      android:id="@+id/listView"     android:layout_width="fill_parent"     android:layout_height="fill_parent"     android:divider="@drawable/list_line"     android:dividerHeight="1dip" />  </LinearLayout>

<?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" >    <ListView      android:id="@+id/listView"     android:layout_width="fill_parent"     android:layout_height="fill_parent"     android:divider="@drawable/list_line"     android:dividerHeight="1dip" />  </LinearLayout> 

<?xml version="1.0" encoding="utf-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/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> 

<?xml version="1.0" encoding="UTF-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/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> 

<?xml version="1.0" encoding="UTF-8"?> <resources>   <color name="region">#8000ff00</color>   <color name="listTitle">#ff23323b</color>   <color name="text">#ff848f9b</color>   <color name="write">#ffffffff</color> </resources> 

<?xml version="1.0" encoding="utf-8"?> <resources>    <string name="hello">Hello World, ListViewActivity!</string>   <string name="app_name">ListView</string>  </resources> 

<?xml version="1.0" encoding="UTF-8"?> <resources>   <item type="drawable" name="bg">#80000000</item>   <item type="drawable" name="transparent">#00000000</item>   <item type="drawable" name="lightblue">#ffcfe1ed</item>   <item type="drawable" name="readmenu_btn_bg_f">#30ffffff</item>   <item type="drawable" name="readmenu_btn_bg_p">#50ffffff</item>   <item type="drawable" name="blackMask">#30000000</item> </resources>