Android checkbox的listView具体 *** 作方法

概述本文主要实现在自定义的ListView布局中加入CheckBox控件，通过判断用户是否选中CheckBox来对ListView的选中项进行相应的 *** 作。通过一个Demo来展示该功能，选中ListView中的某一项，然后点击Button按钮来显示选中了哪

本文主要实现在自定义的ListVIEw布局中加入CheckBox控件，通过判断用户是否选中CheckBox来对ListVIEw的选中项进行相应的 *** 作。通过一个Demo来展示该功能，选中ListVIEw中的某一项，然后点击button按钮来显示选中了哪些项。
1、程序结构图如下：

其中Person.java是实体类，MainActivity.java是Activity组件类。Listitem.xml是自定义的列表每项布局文件。
2、Listitem.xml布局文件源码如下：

<?xml version="1.0" enCoding="utf-8"?> <linearLayout  xmlns:androID="http://schemas.androID.com/apk/res/androID"  androID:orIEntation="vertical"  androID:layout_wIDth="fill_parent"  androID:layout_height="fill_parent">  <linearLayout   androID:layout_wIDth="fill_parent"   androID:layout_height="wrap_content"   androID:orIEntation="horizontal"   androID:descendantFocusability="blocksDescendants">   <CheckBox    androID:ID="@+ID/List.select"    androID:layout_wIDth="wrap_content"    androID:layout_height="wrap_content"/>   <TextVIEw    androID:ID="@+ID/List.name"    androID:layout_wIDth="fill_parent"    androID:layout_height="wrap_content"    androID:layout_weight="1"    androID:text="name"    androID:layout_gravity="center"    androID:textSize="20dp"    androID:layout_marginleft="10dp"/>   <TextVIEw    androID:ID="@+ID/List.address"    androID:layout_wIDth="fill_parent"    androID:layout_height="wrap_content"    androID:layout_weight="1"    androID:text="Address"    androID:layout_gravity="center"    androID:textSize="20dp"/>  </linearLayout> </linearLayout> 

3、 main.xml布局文件源码如下：

<?xml version="1.0" enCoding="utf-8"?> <linearLayout xmlns:androID="http://schemas.androID.com/apk/res/androID"  androID:orIEntation="vertical"  androID:layout_wIDth="fill_parent"  androID:layout_height="fill_parent">  <button   androID:ID="@+ID/show"   androID:layout_wIDth="fill_parent"   androID:layout_height="wrap_content"   androID:text="Show"/>  <ListVIEw   androID:ID="@+ID/lvperson"   androID:layout_wIDth="fill_parent"   androID:layout_height="fill_parent"/> </linearLayout> 

4、Person.java实体类源码如下：

package com.andyIDea.bean;  public class Person {   private String name;  private String address;    public String getname() {   return name;  }  public voID setname(String name) {   this.name = name;  }  public String getAddress() {   return address;  }  public voID setAddress(String address) {   this.address = address;  }   } 

5、MainActivity.java类源码如下：

package com.andyIDea.ListvIEw;  import java.util.ArrayList; import java.util.HashMap; import java.util.List;  import com.andyIDea.bean.Person;  import androID.app.Activity; import androID.app.AlertDialog; import androID.content.Context; import androID.os.Bundle; import androID.util.Log; import androID.vIEw.LayoutInflater; import androID.vIEw.VIEw; import androID.vIEw.VIEwGroup; import androID.Widget.BaseAdapter; import androID.Widget.button; import androID.Widget.CheckBox; import androID.Widget.ListVIEw; import androID.Widget.TextVIEw;  public class MainActivity extends Activity {    button show;  ListVIEw lv;  List<Person> persons = new ArrayList<Person>();  Context mContext;  Mylistadapter adapter;  List<Integer> ListItemID = new ArrayList<Integer>();    /** Called when the activity is first created. */  @OverrIDe  public voID onCreate(Bundle savedInstanceState) {   super.onCreate(savedInstanceState);   setContentVIEw(R.layout.main);   mContext = getApplicationContext();   show = (button)findVIEwByID(R.ID.show);   lv = (ListVIEw)findVIEwByID(R.ID.lvperson);      initPersonData();   adapter = new Mylistadapter(persons);   lv.setAdapter(adapter);      show.setonClickListener(new VIEw.OnClickListener() {     @OverrIDe    public voID onClick(VIEw v) {          ListItemID.clear();     for(int i=0;i<adapter.mChecked.size();i++){      if(adapter.mChecked.get(i)){       ListItemID.add(i);      }     }          if(ListItemID.size()==0){      AlertDialog.Builder builder1 = new AlertDialog.Builder(MainActivity.this);      builder1.setMessage("没有选中任何记录");      builder1.show();     }else{      StringBuilder sb = new StringBuilder();            for(int i=0;i<ListItemID.size();i++){       sb.append("ItemID="+ListItemID.get(i)+" . ");      }      AlertDialog.Builder builder2 = new AlertDialog.Builder(MainActivity.this);      builder2.setMessage(sb.toString());      builder2.show();     }    }   });  }    /**   * 模拟数据   */  private voID initPersonData(){   Person mPerson;   for(int i=1;i<=12;i++){    mPerson = new Person();    mPerson.setname("Andy"+i);    mPerson.setAddress("GuangZhou"+i);    persons.add(mPerson);   }  }    //自定义ListVIEw适配器  class Mylistadapter extends BaseAdapter{   List<Boolean> mChecked;   List<Person> ListPerson;   HashMap<Integer,VIEw> map = new HashMap<Integer,VIEw>();      public Mylistadapter(List<Person> List){    ListPerson = new ArrayList<Person>();    ListPerson = List;        mChecked = new ArrayList<Boolean>();    for(int i=0;i<List.size();i++){     mChecked.add(false);    }   }    @OverrIDe   public int getCount() {    return ListPerson.size();   }    @OverrIDe   public Object getItem(int position) {    return ListPerson.get(position);   }    @OverrIDe   public long getItemID(int position) {    return position;   }    @OverrIDe   public VIEw getVIEw(int position,VIEw convertVIEw,VIEwGroup parent) {    VIEw vIEw;    VIEwHolder holder = null;        if (map.get(position) == null) {     Log.e("MainActivity","position1 = "+position);          LayoutInflater mInflater = (LayoutInflater) mContext       .getSystemService(Context.LAYOUT_INFLATER_SERVICE);     vIEw = mInflater.inflate(R.layout.Listitem,null);     holder = new VIEwHolder();     holder.selected = (CheckBox)vIEw.findVIEwByID(R.ID.List_select);     holder.name = (TextVIEw)vIEw.findVIEwByID(R.ID.List_name);     holder.address = (TextVIEw)vIEw.findVIEwByID(R.ID.List_address);     final int p = position;     map.put(position,vIEw);     holder.selected.setonClickListener(new VIEw.OnClickListener() {            @OverrIDe      public voID onClick(VIEw v) {       CheckBox cb = (CheckBox)v;       mChecked.set(p,cb.isChecked());      }     });     vIEw.setTag(holder);    }else{     Log.e("MainActivity","position2 = "+position);     vIEw = map.get(position);     holder = (VIEwHolder)vIEw.getTag();    }        holder.selected.setChecked(mChecked.get(position));    holder.name.setText(ListPerson.get(position).getname());    holder.address.setText(ListPerson.get(position).getAddress());        return vIEw;   }     }    static class VIEwHolder{   CheckBox selected;   TextVIEw name;   TextVIEw address;  } } 

程序运行后的结果如下：

希望本文所述对大家学习AndroID软件编程有所帮助。

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