【Tech-Android-Other】CheckTextView多选的使用

 布局文件：
 
<?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="horizontal">
    <ImageView android:src="@drawable/ic_launcher"
        android:layout_width="wrap_content" android:layout_height="wrap_content"/>
 <CheckedTextView
     android:id="@+id/checktv_title"
     android:layout_width="match_parent"
     android:layout_height="?android:attr/listPreferredItemHeight"
     android:textAppearance="?android:attr/textAppearanceLarge"
     android:gravity="center_vertical"
     android:checkMark="?android:attr/listChoiceIndicatorMultiple"
     android:paddingLeft="6dip"
     android:paddingRight="6dip"
 />
 <!-- 单选
  android:checkMark="?android:attr/listChoiceIndicatorSingle"
  -->
</LinearLayout>

2. Activity中的实现

package com.test.activity;
import java.util.ArrayList;
import java.util.HashMap;
import android.app.ListActivity;
import android.content.Context;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.BaseAdapter;
import android.widget.CheckedTextView;
import android.widget.ListView;
public class ListCheckedTextView extends ListActivity {
 private ArrayList<HashMap<String,String>> arrlist = new ArrayList<HashMap<String,String>>();
 private ListView listView;
 private HashMap<Integer,Boolean> checkedMap = new HashMap<Integer, Boolean>();  
 
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        
        getdata();
        
        /* 设置ListView的适配器
             有两种方式加载含CheckedTextView的多选模式并响应事件
            1. 但是这种方式，选择多选响应事件时 各个Item会出现乱弹的现象，不知道为什么 希望各位大虾帮帮忙
            //适配器设置
            setListAdapter(new SimpleAdapter(this, arrlist, R.layout.list_checktextview, new String[]{"title"}, new int[]{R.id.checktv_title}));
            //listview的监听事件
           listView.setOnItemClickListener(new OnItemClickListener() {
    @Override
    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
             checktv = (CheckedTextView) parent.getChildAt(position).findViewById(R.id.checktv_title);
        if(checktv.isChecked()){   
          checktv.setChecked(false);   
         }else{   
          checktv.setChecked(true);   
         }   
     }
   });
   2. 通过自定义Adapter实现 如下，
         */
        setListAdapter(new MyAdapter(this, arrlist));
        
        listView = getListView();
        listView.setItemsCanFocus(false);
        listView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
//        listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE);//单选
        
        listView.setOnItemClickListener(new OnItemClickListener() {
   @Override
   public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
    /*对于由position指定的项目，返回其是否被选中。
     * 只有当选择模式已被设置为CHOICE_MODE_SINGLE或CHOICE_MODE_MULTIPLE时 ，结果才有效。
     */     
    boolean checked = getListView().isItemChecked(position);  
     checkedMap.put(position,checked);  
   }
  });
    }
    
    //构造数据
    private ArrayList<HashMap<String,String>> getdata(){
     HashMap<String,String> map = new HashMap<String, String>();
     map.put("title", "aaaa");
     arrlist.add(map);
     map = new HashMap<String, String>();
     map.put("title", "bbbb");
     arrlist.add(map);
     map = new HashMap<String, String>();
     map.put("title", "cccc");
     arrlist.add(map);
     return arrlist;
    }
    
    //自定义Adapter,从checkMap中获取当前Item的状态 并设置
    private class MyAdapter extends BaseAdapter{
     private LayoutInflater inflater ;
     ArrayList<HashMap<String,String>> datalist;
     
     public MyAdapter(Context context , ArrayList<HashMap<String,String>> datalist){
      super();
      inflater = LayoutInflater.from(context);
      this.datalist = datalist;
     }
     
  @Override
  public int getCount() {
   return datalist.size();
  }
  @Override
  public Object getItem(int position) {
   return position;
  }
  @Override
  public long getItemId(int position) {
   return position;
  }
  @Override
  public View getView(int position, View convertView, ViewGroup parent) {
   ViewHolder holder = null;
   if(convertView == null){
    convertView = inflater.inflate(R.layout.list_checktextview, null);
    holder = new ViewHolder();
    holder.checktv_title = (CheckedTextView) convertView.findViewById(R.id.checktv_title);
    convertView.setTag(holder);
   }else{
    holder = (ViewHolder) convertView.getTag();
   }
   
   holder.checktv_title.setText(datalist.get(position).get("title").toString());
   //根据checkMap中position的状态设置是否被选中
   if (checkedMap.get(position) != null && checkedMap.get(position) == true) {
    holder.checktv_title.setChecked(true);
   }else{
    holder.checktv_title.setChecked(false);
   }
   
   return convertView;
  }  
     
  class ViewHolder {
   CheckedTextView checktv_title;
  }
    }