本地数据下，radiobutton和图片组合，利用adapter+listview进行单选

浮生偷得半日闲，等接口定义的过程中，重新复习下adapter+listview实现单选的方法

主界面

 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:paddingBottom="@dimen/activity_vertical_margin"
     android:paddingLeft="@dimen/activity_horizontal_margin"
     android:paddingRight="@dimen/activity_horizontal_margin"
     android:paddingTop="@dimen/activity_vertical_margin"
     tools:context="com.example.locallistviewradiobutton.MainActivity" >

     <ListView
         android:id="@+id/lv_radiobutton"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:divider="@null">

     </ListView>

 </RelativeLayout>

activity_listview.xml

 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="fill_parent"
     android:layout_height="match_parent"
     android:gravity="center"
     android:orientation="vertical" >

     <LinearLayout
         android:id="@+id/ll_rg"
         android:layout_width="fill_parent"
         android:layout_height="wrap_content"
         android:orientation="horizontal"
     android:background="#C6C6C6">

     <RadioButton
         android:id="@+id/rb_select"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_gravity="center"
         android:focusable="false"/>

     <TextView
         android:id="@+id/tv_name"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_gravity="center"
         android:text="name"
         android:textSize="20sp"/>

     <ImageView
           android:id="@+id/iv_card"
           android:layout_width="wrap_content"
           android:layout_height="wrap_content"
           android:scaleType="centerInside"
           android:layout_marginLeft="20dp"
           android:layout_marginRight="20dp"
           android:layout_marginTop="2dp"
           android:layout_marginBottom="2dp"
           android:layout_gravity="left"
           android:adjustViewBounds="true"
           android:src="@drawable/ic_launcher" />

     </LinearLayout>

     <View
         android:layout_width="fill_parent"
         android:layout_height="10dp"
         android:background="#ffffff" />

 </LinearLayout>

MainActivity.java

 package com.example.locallistviewradiobutton;

 import android.app.Activity;
 import android.os.Bundle;
 import android.view.View;
 import android.widget.AdapterView;
 import android.widget.ListView;
 import android.widget.AdapterView.OnItemClickListener;

 public class MainActivity extends Activity {
     private ListView lv_radiobutton;
     private RBlistAdapter adapter;
     private String[] names = new String[] { "a","b","c","d","e" };

     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);

         lv_radiobutton = (ListView) findViewById(R.id.lv_radiobutton);
         adapter = new RBlistAdapter(this, names);
         lv_radiobutton.setAdapter(adapter);

         //点击一行任意位置都能保证radiobutton选中
         lv_radiobutton.setOnItemClickListener(new myOnItemClickListener());

     }

     private class myOnItemClickListener implements OnItemClickListener {
         @Override
         public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
             adapter.index = position;//获取位置并传给adapter中的index（public变量）
             adapter.notifyDataSetChanged();
         }
     }
     public void onBackPressed() {
         // TODO Auto-generated method stub
         super.onBackPressed();
     }

 }

RBlistAdapter.java

 package com.example.locallistviewradiobutton;

 import android.widget.BaseAdapter;
 import android.annotation.SuppressLint;
 import android.content.Context;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.CompoundButton;
 import android.widget.CompoundButton.OnCheckedChangeListener;
 import android.widget.RadioButton;
 import android.widget.TextView;
 import android.widget.Toast;

 public class RBlistAdapter extends BaseAdapter{
     private LayoutInflater inflater;
     private String[] picspecies;
     private viewHolder holder;
     // 标记用户当前选择的那一个,默认为第一个:（0）
     public int index = 0;
     private Context c;

     public RBlistAdapter(Context c, String[] picspecies) {
         super();
         this.c = c;
         this.picspecies = picspecies;
         inflater = LayoutInflater.from(c);
     }

     @Override
     public int getCount() {
         return picspecies.length;
     }

     @Override
     public Object getItem(int position) {
         return null;
     }

     @Override
     public long getItemId(int position) {
         return 0;
     }

     @SuppressLint("InflateParams") @Override
     public View getView(final int position, View convertView, ViewGroup parent) {

         holder = new viewHolder();
         if (convertView == null) {
             convertView = inflater.inflate(R.layout.activity_listview, null);
             holder.nameTxt = (TextView) convertView.findViewById(R.id.tv_name);
             holder.selectBtn = (RadioButton) convertView.findViewById(R.id.rb_select);
             convertView.setTag(holder);
         } else {
             holder = (viewHolder) convertView.getTag();
         }

         holder.nameTxt.setText(picspecies[position]);
         holder.selectBtn
                 .setOnCheckedChangeListener(new OnCheckedChangeListener() {

                     @Override
                     public void onCheckedChanged(CompoundButton buttonView,
                             boolean isChecked) {
                         if (isChecked) {
                             Toast.makeText(c, "您选择的是：" + picspecies[position],
                                     Toast.LENGTH_SHORT).show();
                             index = position;
                             notifyDataSetChanged();
                         }
                     }
                 });

         if (index == position) {// 选中的条目和当前的条目是否相等
             holder.selectBtn.setChecked(true);
         } else {
             holder.selectBtn.setChecked(false);
         }
         return convertView;
     }

     public class viewHolder {
         public TextView nameTxt;
         public RadioButton selectBtn;
     }

 }

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