Android 长按Listview显示CheckBox，实现批量删除。

ListView实现的列表，如果是可编辑，可删除的，一般都要提供批量删除功能，否则的话，一项一项的删除体验很不好，也给用户带来了很大的麻烦。

实现效果图

具体实现代码

select.xml

主布局文件包含一个ListView还有一个隐藏的布局，包含了两个Button一个TextView,默认布局为gone，当监听到长按响应事件时候显示。

 <?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" >

     <ListView 

         android:id="@+id/list"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         android:layout_weight="1"
         android:cacheColorHint="#FFF" >

         </ListView>

     <RelativeLayout 

         android:id="@+id/relative"
         android:layout_width="fill_parent"
         android:layout_height="50dp"
         android:gravity="bottom"
         android:background="@color/lemonchiffon"
         android:visibility="gone"
         >
         <Button 

             android:id="@+id/cancle"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:text="撤销    |"
             android:textSize="20sp"
             android:background="@null"
             android:layout_centerVertical="true"

             />
         <TextView 

             android:id="@+id/txtcount"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:text="共计"
             android:textSize="15sp"
             android:layout_centerInParent="true"

             />

         <Button 

             android:id="@+id/delete"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:text="|  删除"
             android:textSize="20sp"
             android:background="@null"
             android:layout_alignParentRight="true"
             android:layout_centerVertical="true"
             />

     </RelativeLayout>
 </LinearLayout>

item.xml

包含一个TextView 一个CheckBox

 <?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="horizontal" >

     <TextView
         android:id="@+id/txtName"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_alignParentLeft="true"
         android:layout_centerVertical="true"
         android:layout_gravity="center_vertical"
         android:layout_marginLeft="5dp"
         android:layout_weight="1"
         android:text="444444444444"
         android:textSize="17sp"
         android:textColor="#333" />

     <CheckBox
         android:id="@+id/check"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:visibility="gone"
         android:clickable="false"
         />
 </LinearLayout>

通过自定义Adapter绑定ListView数据源，实现长按监听，在长按监听时候，切记将监听事件返回ture。

 /**
      * @author ieasy360_1
      * 自定义Adapter
      */
     class Adapter extends BaseAdapter{
         private Context context;
         private LayoutInflater inflater=null;
         private HashMap<Integer, View> mView ;
         public  HashMap<Integer, Integer> visiblecheck ;//用来记录是否显示checkBox
         public  HashMap<Integer, Boolean> ischeck;
         private TextView txtcount;
         public Adapter(Context context,TextView txtcount)
         {
             this.context = context;
             this.txtcount = txtcount;
             inflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
             mView = new HashMap<Integer, View>();
             visiblecheck = new HashMap<Integer, Integer>();
             ischeck      = new HashMap<Integer, Boolean>();
             if(isMulChoice){
                 for(int i=0;i<array.size();i++){
                     ischeck.put(i, false);
                     visiblecheck.put(i, CheckBox.VISIBLE);
                 }
             }else{
                 for(int i=0;i<array.size();i++)
                 {
                     ischeck.put(i, false);
                     visiblecheck.put(i, CheckBox.INVISIBLE);
                 }
             }
         }

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

         public Object getItem(int position) {
             // TODO Auto-generated method stub
             return array.get(position);
         }

         public long getItemId(int position) {
             // TODO Auto-generated method stub
             return 0;
         }

         public View getView(final int position, View convertView, ViewGroup parent) {
             // TODO Auto-generated method stub
             View view = mView.get(position);
             if(view==null)
             {
                 view = inflater.inflate(R.layout.item, null);
                 TextView txt = (TextView)view.findViewById(R.id.txtName);
                 final CheckBox ceb = (CheckBox)view.findViewById(R.id.check);

                 txt.setText(array.get(position));

                 ceb.setChecked(ischeck.get(position));
                 ceb.setVisibility(visiblecheck.get(position));

                 view.setOnLongClickListener(new Onlongclick());

                 view.setOnClickListener(new OnClickListener() {

                     public void onClick(View v) {
                         // TODO Auto-generated method stub
                         if(isMulChoice){
                             if(ceb.isChecked()){
                                 ceb.setChecked(false);
                                 selectid.remove(array.get(position));
                             }else{
                                 ceb.setChecked(true);
                                 selectid.add(array.get(position));
                             }
                             txtcount.setText("共选择了"+selectid.size()+"项");
                         }else {
                             Toast.makeText(context, "点击了"+array.get(position), Toast.LENGTH_LONG).show();
                         }
                     }
                 });

                 mView.put(position, view);
             }
             return view;
         }

         class Onlongclick implements OnLongClickListener{

             public boolean onLongClick(View v) {
                 // TODO Auto-generated method stub

                 isMulChoice = true;
                 selectid.clear();
                 layout.setVisibility(View.VISIBLE);
                 for(int i=0;i<array.size();i++)
                 {
                     adapter.visiblecheck.put(i, CheckBox.VISIBLE);
                 }
                 adapter = new Adapter(context,txtcount);
                 listview.setAdapter(adapter);
                 return true;
             }
         }
     }

全部实现代码

 package com.example.test;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import android.app.Activity;
 import android.content.Context;
 import android.os.Bundle;
 import android.view.ContextMenu;
 import android.view.ContextMenu.ContextMenuInfo;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.View.OnClickListener;
 import android.view.View.OnLongClickListener;
 import android.view.ViewGroup;
 import android.widget.BaseAdapter;
 import android.widget.Button;
 import android.widget.CheckBox;
 import android.widget.ListView;
 import android.widget.RelativeLayout;
 import android.widget.TextView;
 import android.widget.Toast;

 /**
  * @author ieasy360_1
  *
  */
 public class MulSelect extends Activity implements OnClickListener {

     private ListView listview;
     private Context  context;
     private List<String> array = new ArrayList<String>();
     private List<String> selectid = new ArrayList<String>();
     private boolean isMulChoice = false; //是否多选
     private Adapter  adapter;
     private RelativeLayout layout;
     private Button cancle,delete;
     private TextView txtcount;

     @Override
     protected void onCreate(Bundle savedInstanceState) {
         // TODO Auto-generated method stub
         super.onCreate(savedInstanceState);
         setContentView(R.layout.select);
         context = this;
         listview = (ListView)findViewById(R.id.list);
         layout = (RelativeLayout)findViewById(R.id.relative);
         txtcount = (TextView)findViewById(R.id.txtcount);
         cancle   = (Button)findViewById(R.id.cancle);
         delete   = (Button)findViewById(R.id.delete);
         cancle.setOnClickListener(this);
         delete.setOnClickListener(this);
         init();
         adapter = new Adapter(context,txtcount);
         listview.setAdapter(adapter);

     }

     void init()
     {
         for(int i=0;i<20;i++)
         {
             array.add("小明"+i);
         }
     }

     public void onClick(View v) {
         // TODO Auto-generated method stub
         switch (v.getId()) {
         case R.id.cancle:
             isMulChoice = false;
             selectid.clear();
             adapter = new Adapter(context,txtcount);
             listview.setAdapter(adapter);
             layout.setVisibility(View.INVISIBLE);
             break;
         case R.id.delete:
             isMulChoice =false;
             for(int i=0;i<selectid.size();i++){
                 for(int j=0;j<array.size();j++){
                     if(selectid.get(i).equals(array.get(j))){
                         array.remove(j);
                     }
                 }
             }
             selectid.clear();
             adapter = new Adapter(context,txtcount);
             listview.setAdapter(adapter);
             layout.setVisibility(View.INVISIBLE);
             break;
         default:
             break;
         }

     }

     @Override
     public void onCreateContextMenu(ContextMenu menu, View v,
             ContextMenuInfo menuInfo) {
         // TODO Auto-generated method stub
         super.onCreateContextMenu(menu, v, menuInfo);
         menu.setHeaderTitle("操作");
     }

     /**
      * @author ieasy360_1
      * 自定义Adapter
      */
     class Adapter extends BaseAdapter{
         private Context context;
         private LayoutInflater inflater=null;
         private HashMap<Integer, View> mView ;
         public  HashMap<Integer, Integer> visiblecheck ;//用来记录是否显示checkBox
         public  HashMap<Integer, Boolean> ischeck;
         private TextView txtcount;
         public Adapter(Context context,TextView txtcount)
         {
             this.context = context;
             this.txtcount = txtcount;
             inflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
             mView = new HashMap<Integer, View>();
             visiblecheck = new HashMap<Integer, Integer>();
             ischeck      = new HashMap<Integer, Boolean>();
             if(isMulChoice){
                 for(int i=0;i<array.size();i++){
                     ischeck.put(i, false);
                     visiblecheck.put(i, CheckBox.VISIBLE);
                 }
             }else{
                 for(int i=0;i<array.size();i++)
                 {
                     ischeck.put(i, false);
                     visiblecheck.put(i, CheckBox.INVISIBLE);
                 }
             }
         }

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

         public Object getItem(int position) {
             // TODO Auto-generated method stub
             return array.get(position);
         }

         public long getItemId(int position) {
             // TODO Auto-generated method stub
             return 0;
         }

         public View getView(final int position, View convertView, ViewGroup parent) {
             // TODO Auto-generated method stub
             View view = mView.get(position);
             if(view==null)
             {
                 view = inflater.inflate(R.layout.item, null);
                 TextView txt = (TextView)view.findViewById(R.id.txtName);
                 final CheckBox ceb = (CheckBox)view.findViewById(R.id.check);

                 txt.setText(array.get(position));

                 ceb.setChecked(ischeck.get(position));
                 ceb.setVisibility(visiblecheck.get(position));

                 view.setOnLongClickListener(new Onlongclick());

                 view.setOnClickListener(new OnClickListener() {

                     public void onClick(View v) {
                         // TODO Auto-generated method stub
                         if(isMulChoice){
                             if(ceb.isChecked()){
                                 ceb.setChecked(false);
                                 selectid.remove(array.get(position));
                             }else{
                                 ceb.setChecked(true);
                                 selectid.add(array.get(position));
                             }
                             txtcount.setText("共选择了"+selectid.size()+"项");
                         }else {
                             Toast.makeText(context, "点击了"+array.get(position), Toast.LENGTH_LONG).show();
                         }
                     }
                 });

                 mView.put(position, view);
             }
             return view;
         }

         class Onlongclick implements OnLongClickListener{

             public boolean onLongClick(View v) {
                 // TODO Auto-generated method stub

                 isMulChoice = true;
                 selectid.clear();
                 layout.setVisibility(View.VISIBLE);
                 for(int i=0;i<array.size();i++)
                 {
                     adapter.visiblecheck.put(i, CheckBox.VISIBLE);
                 }
                 adapter = new Adapter(context,txtcount);
                 listview.setAdapter(adapter);
                 return true;
             }
         }
     }
 }