自定义ListView item包含checkbox实现单选和多选

CheckBox本为复选框,仍然可以当单选框用

自定义ListView item中包含一个textview 和checkbox,checkbox选中级别高于item,故在xml中进行屏蔽

单选方法:(该方法同样适用于radiobutton)

main.xml

 <span style="font-size:14px;">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"
     >
        <ImageView
         android:id="@+id/img"
         android:layout_width="fill_parent"
         android:layout_height="wrap_content"
         android:src="@drawable/triangle16blue"/>

     <ListView
         android:id="@+id/lvGroup"
         android:layout_width="fill_parent"
         android:layout_height="fill_parent"
         android:background="@drawable/downbutton_corner"/>

 LinearLayout>span>

 <span style="font-size:14px;"><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="fill_parent"
     android:layout_height="fill_parent"
     android:orientation="horizontal" >

     <TextView
         android:id="@+id/item_tv"
         android:textSize="18sp"
         android:layout_width="0dp"
         android:layout_height="wrap_content"
         android:layout_weight="1"
         android:gravity="center_vertical" />
     <CheckBox
         android:id="@+id/item_cb"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:focusable="false"
         android:clickable="false"
         android:focusableInTouchMode="false"
         android:gravity="center_vertical"/>

 LinearLayout>span>

MainActivity.java

 public class MainActivity extends Activity {
     private static final String TAG = "MainActivity";
     private ListView listView;
     private ArrayList groups;
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.main);
         listView = (ListView) this.findViewById(R.id.list);
         groups = new ArrayList();
                 groups.add("11");
                 groups.add("22");
                 groups.add("33");
                 groups.add("44");
                 groups.add("55");
                 groups.add("66");
                 groups.add("77");
         GroupAdapter adapter = new GroupAdapter(this,groups);
         listView.setAdapter(adapter);
         listView.setOnItemClickListener(listItemClickListener);
         OnItemClickListener listItemClickListener=new OnItemClickListener() {

             @Override
             public void onItemClick(AdapterView parent, View view, int position,
                     long id) {
                 //// 取得ViewHolder对象，这样就省去了通过层层的findViewById去实例化我们需要的cb实例的步骤
                 ViewHolder viewHolder=(ViewHolder)view.getTag();
                 viewHolder.cb.toggle();// 把CheckBox的选中状态改为当前状态的反,gridview确保是单一选中
             }
         };
     }
     }

GroupAdapter.java

 "font-size:14px;">public class GroupAdapter extends BaseAdapter {
     private Activity activity;//上下文
     private ArrayList list;

     private LayoutInflater inflater=null;//导入布局
     private int temp=-1;

     public GroupAdapter(Activity context, ArrayList list) {
         this.activity = context;
         this.list = list;
         inflater=LayoutInflater.from(context);

     }

     @Override
     public int getCount() {
         return list.size();
     }

     @Override
     public Object getItem(int position) {

         return list.get(position);
     }

     @Override
     public long getItemId(int position) {
         // TODO Auto-generated method stub
         return position;
     }
     //listview每显示一行数据,该函数就执行一次
     @Override
     public View getView(int position, View convertView, ViewGroup parent) {
         ViewHolder holder=null;
         if (convertView==null) {//当第一次加载ListView控件时  convertView为空
             convertView=inflater.inflate(R.layout.group_item_view, null);//所以当ListView控件没有滑动时都会执行这条语句
             holder=new ViewHolder();
             holder.tv=(TextView)convertView.findViewById(R.id.item_tv);
             holder.cb=(CheckBox)convertView.findViewById(R.id.item_cb);
             convertView.setTag(holder);//为view设置标签

         }
         else{//取出holder
             holder=(ViewHolder) convertView.getTag();//the Object stored in this view as a tag
         }
         //设置list的textview显示
         holder.tv.setTextColor(Color.WHITE);
         holder.tv.setText(list.get(position));
         // 根据isSelected来设置checkbox的选中状况

         holder.cb.setId(position);//对checkbox的id进行重新设置为当前的position
         holder.cb.setOnCheckedChangeListener(new OnCheckedChangeListener() {
             //把上次被选中的checkbox设为false
             @Override
             public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                 if(isChecked){//实现checkbox的单选功能,同样适用于radiobutton
                     if(temp!=-1){
                         //找到上次点击的checkbox,并把它设置为false,对重新选择时可以将以前的关掉
                         CheckBox tempCheckBox=(CheckBox)activity.findViewById(temp);
                         if(tempCheckBox!=null)
                             tempCheckBox.setChecked(false);
                     }
                     temp=buttonView.getId();//保存当前选中的checkbox的id值
                 }
             }
         });
         //System.out.println("temp:"+temp);
         //System.out.println("position:"+position);
         if(position==temp)//比对position和当前的temp是否一致
             holder.cb.setChecked(true);
         else
             holder.cb.setChecked(false);
         return convertView;
     }
     static class ViewHolder {
         TextView tv;
         CheckBox cb;
     }
 }

listview checkbox实现多选框

MainAcitvity.java

 public class MainActivity extends Activity {
     private static final String TAG = "MainActivity";
     private ListView listView;
     private ArrayList groups;
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.main);
         listView = (ListView) this.findViewById(R.id.list);
         groups = new ArrayList();
                 groups.add("11");
                 groups.add("22");
                 groups.add("33");
                 groups.add("44");
                 groups.add("55");
                 groups.add("66");
                 groups.add("77");
         GroupAdapter adapter = new GroupAdapter(this,groups);
         listView.setAdapter(adapter);
         listView.setOnItemClickListener(listItemClickListener);
         OnItemClickListener listItemClickListener=new OnItemClickListener() {

             @Override
             public void onItemClick(AdapterView parent, View view, int position,
                     long id) {
                 //// 取得ViewHolder对象，这样就省去了通过层层的findViewById去实例化我们需要的cb实例的步骤
                 ViewHolder viewHolder=(ViewHolder)view.getTag();
                 viewHolder.cb.toggle();// 把CheckBox的选中状态改为当前状态的反,gridview确保是单一选中
                 "color:#ff6666;">GroupAdapter.getIsSelected().put(position, viewHolder.cb.isChecked());//将CheckBox的选中状况记录下来
             }
         };
     }
  }

GroupAdapter.java

 public class GroupAdapter extends BaseAdapter {
     "color:#ff0000;">private Context context;//上下文
     private ArrayList list;
     //控制CheckBox选中情况
     private static HashMap isSelected;
     private LayoutInflater inflater=null;//导入布局


     public GroupAdapter("color:#ff0000;">Context context, ArrayList list) {
         "color:#ff0000;">this.context = context;
         this.list = list;
         inflater=LayoutInflater.from(context);
         isSelected=new HashMap();
         initData();
     }
     private void initData(){//初始化isSelected的数据
         for(int i=0;i
             getIsSelected().put(i,false);

         }
     }

     @Override
     public int getCount() {
         return list.size();
     }

     @Override
     public Object getItem(int position) {

         return list.get(position);
     }

     @Override
     public long getItemId(int position) {
         // TODO Auto-generated method stub
         return position;
     }
     //listview每显示一行数据,该函数就执行一次
     @Override
     public View getView(int position, View convertView, ViewGroup parent) {
         ViewHolder holder=null;
         if (convertView==null) {//当第一次加载ListView控件时  convertView为空
             convertView=inflater.inflate(R.layout.group_item_view, null);//所以当ListView控件没有滑动时都会执行这条语句
             holder=new ViewHolder();
             holder.tv=(TextView)convertView.findViewById(R.id.item_tv);
             holder.cb=(CheckBox)convertView.findViewById(R.id.item_cb);
             convertView.setTag(holder);//为view设置标签

         }
         else{//取出holder
             holder=(ViewHolder) convertView.getTag();//the Object stored in this view as a tag
         }
         //设置list的textview显示
         holder.tv.setTextColor(Color.WHITE);
         holder.tv.setText(list.get(position));
         // 根据isSelected来设置checkbox的选中状况
         "color:#ff0000;">holder.cb.setChecked(getIsSelected().get(position));
         return convertView;
     }
     static class ViewHolder {
         TextView tv;
         CheckBox cb;
     }
     public static HashMapgetIsSelected(){
         return isSelected;
     }
     public static void setIsSelected(HashMap isSelected){
         GroupAdapter.isSelected=isSelected;
     }

 }

其中,getview负责显示每一行listview item,每显示一行就执行一次getview,

若要单选,必须保存当前选中的checkbox的position值,与listview 的每一个item的position进行比较,相同时才设置checkbox ischeck=true;

只有checkbox的setOnCheckChangeListener可以做到这点,保存上一次点击的position值,对checkbox的id值重新设置.temp保存该id值.

getview负责显示数据,onitemselectedlistener负责发送消息,提取数据,处理数据

 源码下载
参考:http://blog.csdn.net/notice520/article/details/7266896

http://blog.csdn.net/jdsjlzx/article/details/6969405

http://www.devdiv.com/forum.php?mod=viewthread&tid=85251